• Object#block in __pry__ (pry):6
    • Chewy.strategy $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:197
      • #<Class:Thread>#current $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:198
      • Thread#[] $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:198
      • #<Class:Thread>#current $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:201
      • Thread#[] $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:201
      • Chewy::Strategy#wrap $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:68
        • Chewy::Strategy#push $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:55
          • Chewy::Strategy#resolve $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:83
            • Symbol#to_s $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:84
            • String#camelize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/string/inflections.rb:89
              • ActiveSupport::Inflector.camelize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:68
                • String#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:69
                • String#sub $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:71
                  • ActiveSupport::Inflector.block in camelize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:71
                    • ActiveSupport::Inflector.inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:203
                      • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:204
                      • ActiveSupport::Inflector::Inflections.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:30
                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                    • String#capitalize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:71
                • String#gsub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:75
                • String#gsub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:76
            • String#safe_constantize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/string/inflections.rb:76
              • ActiveSupport::Inflector.safe_constantize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:303
                • ActiveSupport::Inflector.constantize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:250
                  • String#split $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:251
                  • Array#first $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:257
                  • Enumerable#inject $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:259
                    • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:259
                      • ActiveSupport::Inflector.block in constantize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:259
                        • Module#const_get $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:261
                      • ActiveSupport::Inflector.block in constantize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:259
                        • Module#const_get $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:263
                        • Module#const_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:264
                      • ActiveSupport::Inflector.block in constantize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:259
                        • Module#const_get $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:263
                        • Module#const_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:264
          • Class#new $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:56
            • Chewy::Strategy::Atomic#initialize $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy/atomic.rb:15
          • Array#push $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:56
          • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
            • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
              • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
          • Chewy::Strategy#current $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:51
            • Array#last $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:52
          • Chewy::Strategy::Atomic#name $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy/base.rb:11
            • Kernel#class $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy/base.rb:12
            • Module#name $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy/base.rb:12
            • String#demodulize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/string/inflections.rb:137
              • ActiveSupport::Inflector.demodulize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:199
                • String#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:200
                • String#rindex $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:201
                • String#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:202
            • String#underscore $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/string/inflections.rb:118
              • ActiveSupport::Inflector.underscore $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:91
                • String#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:93
                • String#gsub $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:93
                • ActiveSupport::Inflector.inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:203
                  • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:204
                  • ActiveSupport::Inflector::Inflections.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:30
                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                • Regexp#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:94
                • String#gsub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:94
                • String#gsub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:95
                • String#gsub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:96
                • String#tr! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:97
                • String#downcase! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:98
            • String#to_sym $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy/base.rb:12
          • Symbol#to_s $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:57
          • Chewy::Strategy#debug $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:77
            • Chewy.logger $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:213
              • Chewy.config $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:210
                • Chewy::Config.instance /usr/local/lib/ruby/2.5.0/singleton.rb:137
            • Chewy.logger $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:213
              • Chewy.config $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:210
                • Chewy::Config.instance /usr/local/lib/ruby/2.5.0/singleton.rb:137
            • ActiveSupport::Logger#debug? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:93
              • ActiveSupport::Logger#level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:28
                • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:16
                  • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:12
                    • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                    • BasicObject#__id__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
            • Kernel#caller $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:79
            • Enumerable#detect $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:79
              • Array#each $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:79
                • Chewy::Strategy#block in debug $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:79
                  • Kernel#!~ $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:79
                    • String#=~ $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:79
                • Chewy::Strategy#block in debug $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:79
                  • Kernel#!~ $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:79
                    • String#=~ $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:79
                • Chewy::Strategy#block in debug $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:79
                  • Kernel#!~ $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:79
                    • String#=~ $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:79
                • Chewy::Strategy#block in debug $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:79
                  • Kernel#!~ $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:79
                    • String#=~ $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:79
            • Chewy.logger $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:213
              • Chewy.config $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:210
                • Chewy::Config.instance /usr/local/lib/ruby/2.5.0/singleton.rb:137
            • String#sub $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:80
            • Array#join $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:80
            • ActiveSupport::Logger#debug /usr/local/lib/ruby/2.5.0/logger.rb:492
              • ActiveSupport::Logger#add -> block (2 levels) in broadcast $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:25
                • ActiveSupport::Logger#block (2 levels) in broadcast $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:25
                  • ActiveSupport::Logger#add $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:86
                    • Kernel#nil? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:87
                    • ActiveSupport::Logger#level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:28
                      • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:16
                        • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:12
                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                          • BasicObject#__id__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                    • ActiveSupport::Logger#add /usr/local/lib/ruby/2.5.0/logger.rb:455
                      • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:457
                      • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:460
                      • NilClass#nil? /usr/local/lib/ruby/2.5.0/logger.rb:463
                      • Kernel#block_given? /usr/local/lib/ruby/2.5.0/logger.rb:464
                      • ActiveSupport::Logger#format_severity /usr/local/lib/ruby/2.5.0/logger.rb:579
                      • #<Class:Time>#now /usr/local/lib/ruby/2.5.0/logger.rb:472
                        • Time#initialize /usr/local/lib/ruby/2.5.0/logger.rb:472
                      • ActiveSupport::Logger#format_message /usr/local/lib/ruby/2.5.0/logger.rb:583
                        • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:102
                          • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:103
                      • Logger::LogDevice#write /usr/local/lib/ruby/2.5.0/logger.rb:686
                        • Logger::LogDevice#mon_synchronize /usr/local/lib/ruby/2.5.0/monitor.rb:223
                          • Logger::LogDevice#mon_enter /usr/local/lib/ruby/2.5.0/monitor.rb:183
                            • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:184
                            • Thread::Mutex#lock /usr/local/lib/ruby/2.5.0/monitor.rb:185
                            • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:186
                          • Logger::LogDevice#block in write /usr/local/lib/ruby/2.5.0/logger.rb:688
                            • IO#write /usr/local/lib/ruby/2.5.0/logger.rb:697
                          • Logger::LogDevice#mon_exit /usr/local/lib/ruby/2.5.0/monitor.rb:195
                            • Logger::LogDevice#mon_check_owner /usr/local/lib/ruby/2.5.0/monitor.rb:259
                              • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:260
                            • Thread::Mutex#unlock /usr/local/lib/ruby/2.5.0/monitor.rb:200
                  • ActiveSupport::Logger#add $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:86
                    • Kernel#nil? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:87
                    • ActiveSupport::Logger#level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:28
                      • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:16
                        • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:12
                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                          • BasicObject#__id__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                    • ActiveSupport::Logger#add /usr/local/lib/ruby/2.5.0/logger.rb:455
                      • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:457
                      • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:460
                      • NilClass#nil? /usr/local/lib/ruby/2.5.0/logger.rb:463
                      • Kernel#block_given? /usr/local/lib/ruby/2.5.0/logger.rb:464
                      • ActiveSupport::Logger#format_severity /usr/local/lib/ruby/2.5.0/logger.rb:579
                      • #<Class:Time>#now /usr/local/lib/ruby/2.5.0/logger.rb:472
                        • Time#initialize /usr/local/lib/ruby/2.5.0/logger.rb:472
                      • ActiveSupport::Logger#format_message /usr/local/lib/ruby/2.5.0/logger.rb:583
                        • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:20
                          • ActiveSupport::Logger::SimpleFormatter#tags_text $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:50
                            • ActiveSupport::Logger::SimpleFormatter#current_tags $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:45
                              • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:46
                              • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:46
                            • Array#any? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:52
                          • NilClass#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:21
                          • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:102
                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:103
                      • Logger::LogDevice#write /usr/local/lib/ruby/2.5.0/logger.rb:686
                        • Logger::LogDevice#mon_synchronize /usr/local/lib/ruby/2.5.0/monitor.rb:223
                          • Logger::LogDevice#mon_enter /usr/local/lib/ruby/2.5.0/monitor.rb:183
                            • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:184
                            • Thread::Mutex#lock /usr/local/lib/ruby/2.5.0/monitor.rb:185
                            • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:186
                          • Logger::LogDevice#block in write /usr/local/lib/ruby/2.5.0/logger.rb:688
                            • IO#write /usr/local/lib/ruby/2.5.0/logger.rb:697
                          • Logger::LogDevice#mon_exit /usr/local/lib/ruby/2.5.0/monitor.rb:195
                            • Logger::LogDevice#mon_check_owner /usr/local/lib/ruby/2.5.0/monitor.rb:259
                              • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:260
                            • Thread::Mutex#unlock /usr/local/lib/ruby/2.5.0/monitor.rb:200
        • Object#block (2 levels) in __pry__ (pry):6
          • Book::ActiveRecord_Relation#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:46
            • Book::ActiveRecord_Relation#to_a $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:242
              • Book::ActiveRecord_Relation#load $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:514
            • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:46
              • Object#block (3 levels) in __pry__ (pry):6
                • Book#update $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:247
                  • Book#with_transaction_returning_status $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:346
                    • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:348
                    • Book.transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:218
                      • Book.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                        • Book.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                          • Book.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                            • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                              • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                            • Book.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                              • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                          • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                            • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                              • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                              • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                            • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                              • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                  • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                    • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                      • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                      • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:204
                        • Hash#assert_valid_keys $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:71
                          • Array#flatten! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:72
                          • Hash#each_key $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:73
                        • ActiveRecord::ConnectionAdapters::SQLite3Adapter#current_transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:221
                          • ActiveRecord::ConnectionAdapters::TransactionManager#current_transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:207
                            • Array#last $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:208
                        • ActiveRecord::ConnectionAdapters::NullTransaction#joinable? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:41
                        • ActiveRecord::ConnectionAdapters::TransactionManager#within_new_transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:182
                          • ActiveRecord::ConnectionAdapters::TransactionManager#begin_transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:163
                            • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:166
                              • ActiveRecord::ConnectionAdapters::RealTransaction#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:135
                                • ActiveRecord::ConnectionAdapters::RealTransaction#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:50
                                  • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:52
                                    • ActiveRecord::ConnectionAdapters::TransactionState#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:8
                                  • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:54
                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#begin_db_transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:340
                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#log $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:477
                                    • Kernel#object_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:482
                                    • ActiveSupport::Notifications::Instrumenter#instrument $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:17
                                      • ActiveSupport::Notifications::Instrumenter#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:30
                                        • ActiveSupport::Notifications::Fanout#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:41
                                          • ActiveSupport::Notifications::Fanout#listeners_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:53
                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                          • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:42
                                            • ActiveSupport::Notifications::Fanout#block in start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:42
                                              • ActiveSupport::Notifications::Fanout::Subscribers::Evented#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:97
                                                • ActiveRecord::LogSubscriber#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:78
                                                  • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                    • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                  • ActiveRecord::LogSubscriber#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:85
                                                    • #<Class:Time>#now $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:86
                                                      • Time#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:86
                                                    • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:86
                                                      • ActiveSupport::Notifications::Event#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:50
                                                        • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:52
                                                          • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:52
                                                            • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:52
                                                    • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:105
                                                      • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                        • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                        • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                      • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:121
                                                    • Array#last $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:87
                                                    • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:105
                                                      • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                        • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                        • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                      • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:121
                                                    • Array#push $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:90
                                            • ActiveSupport::Notifications::Fanout#block in start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:42
                                              • ActiveSupport::Notifications::Fanout::Subscribers::Evented#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:97
                                                • ActiveRecord::ExplainSubscriber#start $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/explain_subscriber.rb:6
                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in log $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:484
                                        • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in begin_db_transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:341
                                          • SQLite3::Database#transaction $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:495
                                            • Symbol#to_s $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:496
                                            • SQLite3::Database#execute $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:122
                                              • Kernel#nil? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:123
                                              • SQLite3::Database#prepare $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:90
                                                • Class#new $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:91
                                                  • SQLite3::Statement#initialize $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:91
                                                • Kernel#block_given? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:92
                                                • SQLite3::Database#block in execute $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:137
                                                  • SQLite3::Statement#bind_params $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:35
                                                    • Array#flatten $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:37
                                                    • Array#each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:37
                                                  • SQLite3::Statement#columns $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:101
                                                    • SQLite3::Statement#get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:135
                                                      • SQLite3::Statement#column_count $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                      • Class#new $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                        • Array#initialize $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                      • SQLite3::Statement#column_count $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                      • Class#new $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                        • Array#initialize $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                  • Kernel#block_given? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:142
                                                  • Enumerable#map $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:152
                                                    • SQLite3::Statement#each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:106
                                                      • Kernel#loop $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                        • SQLite3::Statement#block in each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                          • SQLite3::Statement#step $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                            • SQLite3::Database#encoding $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                          • SQLite3::Statement#done? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:109
                                                • SQLite3::Statement#closed? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:97
                                                • SQLite3::Statement#close $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:97
                                            • Kernel#block_given? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:498
                                      • ActiveSupport::Notifications::Instrumenter#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:35
                                        • ActiveSupport::Notifications::Fanout#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:45
                                          • ActiveSupport::Notifications::Fanout#listeners_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:53
                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                          • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:46
                                            • ActiveSupport::Notifications::Fanout#block in finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:46
                                              • ActiveSupport::Notifications::Fanout::Subscribers::Evented#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:101
                                                • ActiveRecord::LogSubscriber#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:82
                                                  • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                    • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                  • ActiveRecord::LogSubscriber#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:93
                                                    • #<Class:Time>#now $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:94
                                                      • Time#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:94
                                                    • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:105
                                                      • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                        • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                        • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                      • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:121
                                                    • Array#pop $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:95
                                                    • Hash#merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:97
                                                    • String#split $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:99
                                                    • Array#first $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:99
                                                    • ActiveRecord::LogSubscriber#sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:37
                                                      • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:38
                                                      • ActiveRecord::LogSubscriber.runtime $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:9
                                                        • ActiveRecord::RuntimeRegistry.sql_runtime $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                          • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                            • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                            • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                      • ActiveSupport::Notifications::Event#duration $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:60
                                                        • Time#minus_with_coercion $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:249
                                                          • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:250
                                                          • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:251
                                                          • Time#minus_with_duration $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:236
                                                            • ActiveSupport::Duration.=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/duration.rb:93
                                                              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/duration.rb:94
                                                            • Time#- $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:240
                                                              • Integer#fdiv $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:240
                                                      • ActiveRecord::LogSubscriber.runtime= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:5
                                                        • ActiveRecord::RuntimeRegistry.sql_runtime= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:19
                                                          • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                            • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                            • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                      • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                        • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                      • ActiveSupport::Logger#debug? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:93
                                                        • ActiveSupport::Logger#level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:28
                                                          • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:16
                                                            • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:12
                                                              • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                              • BasicObject#__id__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                      • Array#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:43
                                                      • NilClass#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:45
                                                      • ActiveSupport::Notifications::Event#duration $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:60
                                                      • Float#round $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:45
                                                      • Float#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                        • Float#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                          • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                          • Float#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                      • ActiveRecord::LogSubscriber#odd? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:65
                                                      • ActiveRecord::LogSubscriber#color $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:102
                                                        • ActiveRecord::LogSubscriber#colorize_logging $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:67
                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:104
                                                      • NilClass#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:62
                                                      • ActiveRecord::LogSubscriber#debug $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:92
                                                        • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                          • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                        • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                          • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                        • ActiveSupport::Logger#debug /usr/local/lib/ruby/2.5.0/logger.rb:492
                                                          • ActiveSupport::Logger#add -> block (2 levels) in broadcast $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:25
                                                            • ActiveSupport::Logger#block (2 levels) in broadcast $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:25
                                                              • ActiveSupport::Logger#add $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:86
                                                                • Kernel#nil? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:87
                                                                • ActiveSupport::Logger#level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:28
                                                                  • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:16
                                                                    • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:12
                                                                      • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                      • BasicObject#__id__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                • ActiveSupport::Logger#add /usr/local/lib/ruby/2.5.0/logger.rb:455
                                                                  • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:457
                                                                  • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:460
                                                                  • NilClass#nil? /usr/local/lib/ruby/2.5.0/logger.rb:463
                                                                  • Kernel#block_given? /usr/local/lib/ruby/2.5.0/logger.rb:464
                                                                  • ActiveSupport::Logger#format_severity /usr/local/lib/ruby/2.5.0/logger.rb:579
                                                                  • #<Class:Time>#now /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                    • Time#initialize /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                  • ActiveSupport::Logger#format_message /usr/local/lib/ruby/2.5.0/logger.rb:583
                                                                    • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:102
                                                                      • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:103
                                                                  • Logger::LogDevice#write /usr/local/lib/ruby/2.5.0/logger.rb:686
                                                                    • Logger::LogDevice#mon_synchronize /usr/local/lib/ruby/2.5.0/monitor.rb:223
                                                                      • Logger::LogDevice#mon_enter /usr/local/lib/ruby/2.5.0/monitor.rb:183
                                                                        • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:184
                                                                        • Thread::Mutex#lock /usr/local/lib/ruby/2.5.0/monitor.rb:185
                                                                        • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:186
                                                                      • Logger::LogDevice#block in write /usr/local/lib/ruby/2.5.0/logger.rb:688
                                                                        • IO#write /usr/local/lib/ruby/2.5.0/logger.rb:697
                                                                      • Logger::LogDevice#mon_exit /usr/local/lib/ruby/2.5.0/monitor.rb:195
                                                                        • Logger::LogDevice#mon_check_owner /usr/local/lib/ruby/2.5.0/monitor.rb:259
                                                                          • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:260
                                                                        • Thread::Mutex#unlock /usr/local/lib/ruby/2.5.0/monitor.rb:200
                                                              • ActiveSupport::Logger#add $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:86
                                                                • Kernel#nil? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:87
                                                                • ActiveSupport::Logger#level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:28
                                                                  • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:16
                                                                    • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:12
                                                                      • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                      • BasicObject#__id__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                • ActiveSupport::Logger#add /usr/local/lib/ruby/2.5.0/logger.rb:455
                                                                  • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:457
                                                                  • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:460
                                                                  • NilClass#nil? /usr/local/lib/ruby/2.5.0/logger.rb:463
                                                                  • Kernel#block_given? /usr/local/lib/ruby/2.5.0/logger.rb:464
                                                                  • ActiveSupport::Logger#format_severity /usr/local/lib/ruby/2.5.0/logger.rb:579
                                                                  • #<Class:Time>#now /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                    • Time#initialize /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                  • ActiveSupport::Logger#format_message /usr/local/lib/ruby/2.5.0/logger.rb:583
                                                                    • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:20
                                                                      • ActiveSupport::Logger::SimpleFormatter#tags_text $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:50
                                                                        • ActiveSupport::Logger::SimpleFormatter#current_tags $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:45
                                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:46
                                                                          • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:46
                                                                        • Array#any? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:52
                                                                      • NilClass#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:21
                                                                      • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:102
                                                                        • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:103
                                                                  • Logger::LogDevice#write /usr/local/lib/ruby/2.5.0/logger.rb:686
                                                                    • Logger::LogDevice#mon_synchronize /usr/local/lib/ruby/2.5.0/monitor.rb:223
                                                                      • Logger::LogDevice#mon_enter /usr/local/lib/ruby/2.5.0/monitor.rb:183
                                                                        • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:184
                                                                        • Thread::Mutex#lock /usr/local/lib/ruby/2.5.0/monitor.rb:185
                                                                        • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:186
                                                                      • Logger::LogDevice#block in write /usr/local/lib/ruby/2.5.0/logger.rb:688
                                                                        • IO#write /usr/local/lib/ruby/2.5.0/logger.rb:697
                                                                      • Logger::LogDevice#mon_exit /usr/local/lib/ruby/2.5.0/monitor.rb:195
                                                                        • Logger::LogDevice#mon_check_owner /usr/local/lib/ruby/2.5.0/monitor.rb:259
                                                                          • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:260
                                                                        • Thread::Mutex#unlock /usr/local/lib/ruby/2.5.0/monitor.rb:200
                                            • ActiveSupport::Notifications::Fanout#block in finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:46
                                              • ActiveSupport::Notifications::Fanout::Subscribers::Evented#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:101
                                                • ActiveRecord::ExplainSubscriber#finish $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/explain_subscriber.rb:10
                                                  • ActiveRecord::ExplainRegistry.collect? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:50
                                                    • ActiveRecord::ExplainRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                      • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                      • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                    • ActiveRecord::ExplainRegistry#collect? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/explain_registry.rb:21
                            • Array#push $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:170
                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:213
                            • Book#block in with_transaction_returning_status $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:348
                              • Book#add_to_transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:330
                                • Book#has_transactional_callbacks? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:494
                                  • Book#_rollback_callbacks -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                    • Book#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                      • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                      • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                      • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                        • Book._rollback_callbacks -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                          • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                  • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:529
                                  • Book#_commit_callbacks -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                    • Book#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                      • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                      • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                      • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                        • Book._commit_callbacks -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                          • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                  • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:529
                                • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:332
                                • Book.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                  • Book.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                    • Book.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                      • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                        • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                          • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                      • Book.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                        • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                    • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                      • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                        • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                          • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                        • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                      • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                        • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                          • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                            • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                              • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#add_transaction_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:233
                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#current_transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:221
                                    • ActiveRecord::ConnectionAdapters::TransactionManager#current_transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:207
                                      • Array#last $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:208
                                  • ActiveRecord::ConnectionAdapters::RealTransaction#add_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:57
                                • Book#remember_transaction_record_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:369
                                  • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                    • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                      • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                  • Hash#[]= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:370
                                  • Book#frozen? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:415
                                    • Kernel#frozen? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:416
                                  • Hash#reverse_merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/reverse_merge.rb:17
                                    • Hash#merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/reverse_merge.rb:19
                                  • Hash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:376
                                  • Hash#[]= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:376
                              • Book#block in update $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:250
                                • Book#assign_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_assignment.rb:23
                                  • Kernel#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_assignment.rb:24
                                  • Hash#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_assignment.rb:27
                                  • Hash#stringify_keys $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:33
                                    • Hash#transform_keys $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:8
                                      • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:9
                                      • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:10
                                      • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:10
                                        • Hash#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:10
                                      • Hash#each_key $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:11
                                        • Hash#block in transform_keys $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:11
                                          • Hash#block in stringify_keys $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:34
                                            • Symbol#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:34
                                  • Book#sanitize_for_mass_assignment $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/forbidden_attributes_protection.rb:19
                                    • Kernel#respond_to? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/forbidden_attributes_protection.rb:20
                                  • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_assignment.rb:35
                                    • Book#block in assign_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_assignment.rb:35
                                      • String#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_assignment.rb:36
                                      • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_assignment.rb:38
                                      • Book#_assign_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_assignment.rb:53
                                        • Kernel#public_send $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_assignment.rb:54
                                          • Book#__temp__97561627 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                            • Book#write_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:92
                                              • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:93
                                              • Book#old_attribute_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:120
                                                • Book#attribute_changed? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:176
                                                  • Book#changes_include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:80
                                                    • Book#changes_include? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:195
                                                      • Book#changed_attributes $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:171
                                                      • ActiveSupport::HashWithIndifferentAccess#key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:149
                                                        • ActiveSupport::HashWithIndifferentAccess#convert_key $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:269
                                                          • Kernel#kind_of? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:270
                                                        • Hash#key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:150
                                                    • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                      • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                        • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                        • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                      • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                        • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                      • ActiveRecord::Attribute::FromUser#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                        • ActiveRecord::Attribute::FromUser#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                        • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                        • ActiveRecord::Type::Integer#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:79
                                                  • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:178
                                                  • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:179
                                                • Book#clone_attribute_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:374
                                                  • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                    • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                    • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                      • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                        • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                      • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                  • Integer#duplicable? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/duplicable.rb:24
                                                  • Numeric#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:376
                                              • Book#write_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/write.rb:55
                                                • Book#write_attribute_with_type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/write.rb:69
                                                  • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/write.rb:70
                                                  • ActiveRecord::AttributeSet#write_from_user $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:38
                                                    • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                      • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                    • ActiveRecord::Attribute::FromUser#with_value_from_user $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:57
                                                      • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:58
                                                      • ActiveRecord::Attribute::FromUser.from_user $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:8
                                                        • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:9
                                                          • ActiveRecord::Attribute::FromUser#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:29
                                                    • ActiveRecord::LazyAttributeHash#[]= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:43
                                                      • Kernel#frozen? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:44
                                              • Book#store_original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:169
                                                • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                  • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                • ActiveRecord::Attribute::FromUser#value_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:45
                                                  • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                    • ActiveRecord::Attribute::FromUser#original_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:41
                                                      • ActiveRecord::Attribute::FromUser#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:109
                                                        • ActiveRecord::Type::Integer#type_cast_from_user $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:33
                                                          • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:8
                                                            • TrueClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:10
                                                            • FalseClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:11
                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:12
                                                            • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:97
                                                              • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:98
                                                              • ActiveRecord::Type::Integer#cast_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:34
                                                                • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:39
                                                  • ActiveRecord::Type::Integer#type_cast_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:20
                                                    • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:8
                                                      • TrueClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:10
                                                      • FalseClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:11
                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:12
                                                      • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:97
                                                        • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:98
                                                        • ActiveRecord::Type::Integer#cast_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:34
                                                          • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:39
                                                    • ActiveRecord::Type::Integer#ensure_in_range $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:43
                                                      • Range#cover? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                        • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                        • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                              • Book#save_changed_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:111
                                                • Book#clear_changed_attributes_cache $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:186
                                                • Book#changes_include? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:195
                                                  • Book#changed_attributes $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:171
                                                  • ActiveSupport::HashWithIndifferentAccess#key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:149
                                                    • ActiveSupport::HashWithIndifferentAccess#convert_key $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:269
                                                      • Kernel#kind_of? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:270
                                                    • Hash#key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:150
                                                • Book#_field_changed? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:142
                                                  • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                    • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                  • ActiveRecord::Attribute::FromUser#changed_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:49
                                                    • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                    • ActiveRecord::Type::Integer#changed? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:18
                                                      • ActiveRecord::Type::Integer#changed? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:71
                                                • Book#set_attribute_was $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:262
                                                  • Book#changed_attributes $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:171
                                                  • ActiveSupport::HashWithIndifferentAccess#[]= $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:96
                                                    • ActiveSupport::HashWithIndifferentAccess#convert_key $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:269
                                                      • Kernel#kind_of? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:270
                                                    • ActiveSupport::HashWithIndifferentAccess#convert_value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:273
                                                      • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:274
                                                      • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:280
                                                    • ActiveSupport::HashWithIndifferentAccess#[]= $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:97
                                • Book#save $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:284
                                  • Book#rollback_active_record_state! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:299
                                    • Book#remember_transaction_record_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:369
                                      • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                        • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                          • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                          • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                            • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                      • Hash#[]= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:370
                                      • Book#frozen? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:415
                                        • Kernel#frozen? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:416
                                      • Hash#reverse_merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/reverse_merge.rb:17
                                        • Hash#merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/reverse_merge.rb:19
                                          • Hash#block in reverse_merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/reverse_merge.rb:19
                                          • Hash#block in reverse_merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/reverse_merge.rb:19
                                          • Hash#block in reverse_merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/reverse_merge.rb:19
                                      • Hash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:376
                                      • Hash#[]= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:376
                                    • Book#block in save $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:285
                                      • Book#with_transaction_returning_status $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:346
                                        • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:348
                                        • Book.transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:218
                                          • Book.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                            • Book.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                              • Book.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                  • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                    • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                    • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                • Book.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                  • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                              • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                                • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                  • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                    • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                  • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                                  • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                                    • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                                      • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                        • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                          • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:204
                                            • Hash#assert_valid_keys $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:71
                                              • Array#flatten! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:72
                                              • Hash#each_key $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:73
                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#current_transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:221
                                              • ActiveRecord::ConnectionAdapters::TransactionManager#current_transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:207
                                                • Array#last $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:208
                                            • ActiveRecord::ConnectionAdapters::RealTransaction#joinable? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:102
                                            • Book#block in with_transaction_returning_status $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:348
                                              • Book#add_to_transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:330
                                                • Book#has_transactional_callbacks? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:494
                                                  • Book#_rollback_callbacks -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                    • Book#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                      • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                                      • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                      • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                        • Book._rollback_callbacks -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                          • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                  • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:529
                                                  • Book#_commit_callbacks -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                    • Book#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                      • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                                      • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                      • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                        • Book._commit_callbacks -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                          • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                  • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:529
                                                • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:332
                                                • Book.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                                  • Book.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                                    • Book.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                      • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                        • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                          • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                      • Book.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                        • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                    • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                                      • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                        • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                          • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                        • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                      • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                                        • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                                          • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                                            • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                              • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#add_transaction_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:233
                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#current_transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:221
                                                    • ActiveRecord::ConnectionAdapters::TransactionManager#current_transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:207
                                                      • Array#last $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:208
                                                  • ActiveRecord::ConnectionAdapters::RealTransaction#add_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:57
                                                • Book#remember_transaction_record_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:369
                                                  • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                    • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                      • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                  • Hash#[]= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:370
                                                  • Book#frozen? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:415
                                                    • Kernel#frozen? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:416
                                                  • Hash#reverse_merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/reverse_merge.rb:17
                                                    • Hash#merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/reverse_merge.rb:19
                                                      • Hash#block in reverse_merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/reverse_merge.rb:19
                                                      • Hash#block in reverse_merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/reverse_merge.rb:19
                                                      • Hash#block in reverse_merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/reverse_merge.rb:19
                                                  • Hash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:376
                                                  • Hash#[]= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:376
                                              • Book#block (2 levels) in save $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:286
                                                • Book#save $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:20
                                                  • Book#save $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/validations.rb:36
                                                    • Book#perform_validations $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/validations.rb:82
                                                      • Book#valid? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/validations.rb:56
                                                        • Book#new_record? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:85
                                                          • Book#sync_with_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:515
                                                            • Book#update_attributes_from_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:519
                                                        • Book#valid? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/validations.rb:335
                                                          • Book#errors $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/validations.rb:300
                                                          • ActiveModel::Errors#clear $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/errors.rb:86
                                                            • Hash#clear $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/errors.rb:87
                                                          • Book#run_validations! $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/validations/callbacks.rb:112
                                                            • Book#_run_validation_callbacks $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:777
                                                              • Book#_validation_callbacks -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                • Book#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                  • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                                                  • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                  • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                    • Book._validation_callbacks -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                      • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                              • Book#__run_callbacks__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:86
                                                                • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:529
                                                                • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:88
                                                                • Book#block in run_validations! $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/validations/callbacks.rb:113
                                                                  • Book#run_validations! $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/validations.rb:398
                                                                    • Book#_run_validate_callbacks $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:777
                                                                      • Book#_validate_callbacks -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                        • Book#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                          • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                                                          • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                          • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                            • Book._validate_callbacks -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                              • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                      • Book#__run_callbacks__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:86
                                                                        • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:529
                                                                        • ActiveSupport::Callbacks::CallbackChain#compile $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:553
                                                                        • #<Class:ActiveSupport::Callbacks::Filters::Environment>#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:91
                                                                          • Struct#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:91
                                                                        • ActiveSupport::Callbacks::CallbackSequence#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:503
                                                                          • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:504
                                                                            • ActiveSupport::Callbacks::CallbackSequence#block in call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:504
                                                                              • ActiveSupport::Callbacks::Filters::Before.block in simple $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:191
                                                                                • ActiveSupport::Callbacks::Filters::Environment#target $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:192
                                                                                • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:192
                                                                                • ActiveSupport::Callbacks::Callback#block in make_lambda $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:432
                                                                                  • Book#validate_associated_records_for_taggings -> block in define_non_cyclic_method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:151
                                                                                    • Book#block in define_non_cyclic_method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:151
                                                                                      • BasicObject#instance_eval $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:157
                                                                                        • Book#block in define_autosave_validation_callbacks $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:217
                                                                                          • Book#validate_collection_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:309
                                                                                            • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                                            • Book#new_record? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:85
                                                                                              • Book#sync_with_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:515
                                                                                                • Book#update_attributes_from_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:519
                                                                                            • Book#associated_records_to_validate_or_save $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:270
                                                                                              • Enumerable#find_all $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:276
                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:276
                                                                                                  • Book#block in associated_records_to_validate_or_save $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:276
                                                                                                    • ActsAsTaggableOn::Tagging#new_record? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:85
                                                                                                      • ActsAsTaggableOn::Tagging#sync_with_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:515
                                                                                                        • ActsAsTaggableOn::Tagging#update_attributes_from_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:519
                                                                                                  • Book#block in associated_records_to_validate_or_save $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:276
                                                                                                    • ActsAsTaggableOn::Tagging#new_record? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:85
                                                                                                      • ActsAsTaggableOn::Tagging#sync_with_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:515
                                                                                                        • ActsAsTaggableOn::Tagging#update_attributes_from_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:519
                                                                                            • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:312
                                                                            • ActiveSupport::Callbacks::CallbackSequence#block in call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:504
                                                                              • ActiveSupport::Callbacks::Filters::Before.block in simple $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:191
                                                                                • ActiveSupport::Callbacks::Filters::Environment#target $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:192
                                                                                • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:192
                                                                                • ActiveSupport::Callbacks::Callback#block in make_lambda $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:432
                                                                                  • Book#validate_associated_records_for_base_tags -> block in define_non_cyclic_method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:151
                                                                                    • Book#block in define_non_cyclic_method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:151
                                                                                      • BasicObject#instance_eval $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:157
                                                                                        • Book#block in define_autosave_validation_callbacks $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:217
                                                                                          • Book#validate_collection_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:309
                                                                                            • ActiveRecord::Reflection::ThroughReflection#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                            • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                            • ActiveSupport::Callbacks::CallbackSequence#block in call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:504
                                                                              • ActiveSupport::Callbacks::Filters::Before.block in simple $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:191
                                                                                • ActiveSupport::Callbacks::Filters::Environment#target $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:192
                                                                                • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:192
                                                                                • ActiveSupport::Callbacks::Callback#block in make_lambda $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:432
                                                                                  • Book#validate_associated_records_for_tag_taggings -> block in define_non_cyclic_method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:151
                                                                                    • Book#block in define_non_cyclic_method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:151
                                                                                      • BasicObject#instance_eval $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:157
                                                                                        • Book#block in define_autosave_validation_callbacks $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:217
                                                                                          • Book#validate_collection_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:309
                                                                                            • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                            • ActiveSupport::Callbacks::CallbackSequence#block in call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:504
                                                                              • ActiveSupport::Callbacks::Filters::Before.block in simple $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:191
                                                                                • ActiveSupport::Callbacks::Filters::Environment#target $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:192
                                                                                • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:192
                                                                                • ActiveSupport::Callbacks::Callback#block in make_lambda $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:432
                                                                                  • Book#validate_associated_records_for_tags -> block in define_non_cyclic_method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:151
                                                                                    • Book#block in define_non_cyclic_method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:151
                                                                                      • BasicObject#instance_eval $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:157
                                                                                        • Book#block in define_autosave_validation_callbacks $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:217
                                                                                          • Book#validate_collection_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:309
                                                                                            • ActiveRecord::Reflection::ThroughReflection#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                            • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                          • ActiveSupport::Callbacks::CallbackChain#block (2 levels) in compile $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:555
                                                                            • ActiveSupport::Callbacks::Filters::End#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:115
                                                                              • ActiveSupport::Callbacks::Filters::Environment#run_block $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:116
                                                                              • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:117
                                                                          • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:506
                                                                        • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:92
                                                                    • Book#errors $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/validations.rb:300
                                                                    • ActiveModel::Errors#empty? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/errors.rb:218
                                                                      • Enumerable#all? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/errors.rb:219
                                                                        • ActiveModel::Errors#each $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/errors.rb:162
                                                                          • Hash#each_key $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/errors.rb:163
                                                        • Book#errors $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/validations.rb:300
                                                        • ActiveModel::Errors#empty? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/errors.rb:218
                                                          • Enumerable#all? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/errors.rb:219
                                                            • ActiveModel::Errors#each $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/errors.rb:162
                                                              • Hash#each_key $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/errors.rb:163
                                                    • Book#save $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:119
                                                      • Book#create_or_update $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/callbacks.rb:301
                                                        • Book#_run_save_callbacks $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:777
                                                          • Book#_save_callbacks -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                            • Book#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                              • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                                              • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                              • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                • Book._save_callbacks -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                  • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                          • Book#__run_callbacks__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:86
                                                            • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:529
                                                            • ActiveSupport::Callbacks::CallbackChain#compile $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:553
                                                            • #<Class:ActiveSupport::Callbacks::Filters::Environment>#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:91
                                                              • Struct#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:91
                                                            • ActiveSupport::Callbacks::CallbackSequence#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:503
                                                              • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:504
                                                                • ActiveSupport::Callbacks::CallbackSequence#block in call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:504
                                                                  • ActiveSupport::Callbacks::Filters::Before.block in halting $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:158
                                                                    • ActiveSupport::Callbacks::Filters::Environment#target $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:159
                                                                    • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:160
                                                                    • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:161
                                                                    • ActiveSupport::Callbacks::Callback#block in make_lambda $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:432
                                                                      • Book#before_save_collection_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:340
                                                                        • Book#new_record? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:85
                                                                          • Book#sync_with_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:515
                                                                            • Book#update_attributes_from_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:519
                                                                    • ActiveRecord::Base.block in define_model_callbacks $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:106
                                                                    • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:166
                                                                • ActiveSupport::Callbacks::CallbackSequence#block in call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:504
                                                                  • ActiveSupport::Callbacks::Filters::Before.block in halting $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:158
                                                                    • ActiveSupport::Callbacks::Filters::Environment#target $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:159
                                                                    • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:160
                                                                    • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:161
                                                                    • ActiveSupport::Callbacks::Callback#block in make_lambda $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:432
                                                                      • Book#autosave_associated_records_for_author -> block in define_non_cyclic_method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:151
                                                                        • Book#block in define_non_cyclic_method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:151
                                                                          • BasicObject#instance_eval $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:157
                                                                            • Book#block in add_autosave_association_callbacks $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:201
                                                                              • Book#save_belongs_to_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:431
                                                                                • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                    • ActiveRecord::Base.block in define_model_callbacks $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:106
                                                                    • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:166
                                                              • ActiveSupport::Callbacks::CallbackChain#block (2 levels) in compile $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:555
                                                                • ActiveSupport::Callbacks::Filters::End#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:115
                                                                  • ActiveSupport::Callbacks::Filters::Environment#run_block $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:116
                                                                  • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:117
                                                                  • Book#block in create_or_update $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/callbacks.rb:302
                                                                    • Book#create_or_update $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:502
                                                                      • Book#readonly? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:430
                                                                      • Book#new_record? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:85
                                                                        • Book#sync_with_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:515
                                                                          • Book#update_attributes_from_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:519
                                                                      • Book#_update_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:60
                                                                        • Book#should_record_timestamps? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:73
                                                                          • Book#record_timestamps -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                            • Book#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                              • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                                                              • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                              • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                • Book.record_timestamps -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                  • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                          • Book#partial_writes? -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:113
                                                                            • Book#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:113
                                                                              • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:113
                                                                                • Book#partial_writes -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                  • Book#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                    • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                                                                    • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                    • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                      • Book.partial_writes -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                        • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                          • Book#changed? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:132
                                                                            • Book#changed_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:57
                                                                              • Book#changed_attributes $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:171
                                                                              • Book#attributes_changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:146
                                                                                • Book#changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:153
                                                                                  • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                                  • Book.attribute_names $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:186
                                                                                  • Array#select $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                                    • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                                      • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                                        • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                                          • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                        • ActiveRecord::Attribute::FromDatabase#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                                          • ActiveRecord::Attribute::FromDatabase#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                          • ActiveRecord::Type::Integer#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:79
                                                                                    • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                                      • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                                        • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                                          • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                        • ActiveRecord::Attribute::FromDatabase#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                                          • ActiveRecord::Attribute::FromDatabase#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                          • ActiveRecord::Type::String#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:8
                                                                                            • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:9
                                                                                    • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                                      • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                                        • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                                          • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                        • ActiveRecord::Attribute::FromDatabase#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                                          • ActiveRecord::Attribute::FromDatabase#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                          • ActiveRecord::Type::Text#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:8
                                                                                            • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:9
                                                                                    • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                                      • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                                        • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                                          • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                        • ActiveRecord::Attribute::FromUser#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                                          • ActiveRecord::Attribute::FromUser#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                                          • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                          • ActiveRecord::Type::Integer#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:79
                                                                                    • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                                      • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                                        • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                                          • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                        • ActiveRecord::Attribute::FromDatabase#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                                          • ActiveRecord::Attribute::FromDatabase#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                          • ActiveRecord::Type::Integer#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:79
                                                                                    • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                                      • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                                        • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                                          • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                        • ActiveRecord::Attribute::FromDatabase#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                                          • ActiveRecord::Attribute::FromDatabase#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                          • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#changed_in_place? -> block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                            • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                              • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /usr/local/lib/ruby/2.5.0/delegate.rb:392
                                                                                              • ActiveRecord::Type::DateTime#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:79
                                                                                    • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                                      • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                                        • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                                          • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                        • ActiveRecord::Attribute::FromUser#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                                          • ActiveRecord::Attribute::FromUser#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                                          • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                          • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#changed_in_place? -> block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                            • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                              • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /usr/local/lib/ruby/2.5.0/delegate.rb:392
                                                                                              • ActiveRecord::Type::DateTime#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:79
                                                                                • Enumerable#each_with_object $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:147
                                                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:147
                                                                              • ActiveSupport::HashWithIndifferentAccess#reverse_merge $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:208
                                                                                • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:209
                                                                                • ActiveSupport::HashWithIndifferentAccess.new_from_hash_copying_default $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:75
                                                                                  • Hash#to_hash $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:76
                                                                                  • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:77
                                                                                    • ActiveSupport::HashWithIndifferentAccess#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:58
                                                                                      • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:59
                                                                                      • Hash#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:60
                                                                                      • ActiveSupport::HashWithIndifferentAccess#update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:127
                                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:128
                                                                                        • Hash#to_hash $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:131
                                                                                        • Hash#each_pair $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:131
                                                                                  • Kernel#tap $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:77
                                                                                    • ActiveSupport::HashWithIndifferentAccess.block in new_from_hash_copying_default $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:77
                                                                                      • Hash#default $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:78
                                                                                      • Hash#default= $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:78
                                                                                      • Hash#default_proc $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:79
                                                                                • ActiveSupport::HashWithIndifferentAccess#reverse_merge $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/reverse_merge.rb:12
                                                                                  • ActiveSupport::HashWithIndifferentAccess#merge $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:198
                                                                                    • ActiveSupport::HashWithIndifferentAccess#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:189
                                                                                      • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:190
                                                                                      • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:190
                                                                                        • ActiveSupport::HashWithIndifferentAccess#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:58
                                                                                          • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:59
                                                                                          • Hash#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:60
                                                                                          • ActiveSupport::HashWithIndifferentAccess#update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:127
                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:128
                                                                                            • Hash#update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:129
                                                                                      • Kernel#tap $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:190
                                                                                        • ActiveSupport::HashWithIndifferentAccess#block in dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:190
                                                                                          • ActiveSupport::HashWithIndifferentAccess#set_defaults $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:290
                                                                                            • Hash#default_proc $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:291
                                                                                            • ActiveSupport::HashWithIndifferentAccess#default $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:67
                                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:68
                                                                                              • Hash#default $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:71
                                                                                            • Hash#default= $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:294
                                                                                    • ActiveSupport::HashWithIndifferentAccess#update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:127
                                                                                      • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:128
                                                                                      • Hash#update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:129
                                                                              • Kernel#freeze $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:63
                                                                            • ActiveSupport::HashWithIndifferentAccess#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                                              • Hash#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:24
                                                                        • Book#current_time_from_proper_timezone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:109
                                                                          • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:110
                                                                          • Book.default_timezone $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                          • #<Class:Time>#now $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:110
                                                                            • Time#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:110
                                                                          • Time#utc $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:110
                                                                        • Book#timestamp_attributes_for_update_in_model $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:81
                                                                          • Book#timestamp_attributes_for_update $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:89
                                                                          • Array#select $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:82
                                                                            • Book#block in timestamp_attributes_for_update_in_model $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:82
                                                                              • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:82
                                                                              • Book.column_names $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:259
                                                                              • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:82
                                                                              • Array#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:82
                                                                            • Book#block in timestamp_attributes_for_update_in_model $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:82
                                                                              • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:82
                                                                              • Book.column_names $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:259
                                                                              • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:82
                                                                              • Array#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:82
                                                                        • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:64
                                                                          • Book#block in _update_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:64
                                                                            • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:65
                                                                            • Book#attribute_changed? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:176
                                                                              • Book#changes_include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:80
                                                                                • Book#changes_include? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:195
                                                                                  • Book#changed_attributes $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:171
                                                                                  • ActiveSupport::HashWithIndifferentAccess#key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:149
                                                                                    • ActiveSupport::HashWithIndifferentAccess#convert_key $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:269
                                                                                      • Kernel#kind_of? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:270
                                                                                    • Hash#key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:150
                                                                                • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                                  • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                                    • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                                    • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                                  • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                    • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                  • ActiveRecord::Attribute::FromUser#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                                    • ActiveRecord::Attribute::FromUser#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                                    • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                    • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#changed_in_place? -> block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                      • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                        • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /usr/local/lib/ruby/2.5.0/delegate.rb:392
                                                                                        • ActiveRecord::Type::DateTime#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:79
                                                                              • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:178
                                                                              • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:179
                                                                            • Book#write_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:92
                                                                              • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:93
                                                                              • Book#old_attribute_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:120
                                                                                • Book#attribute_changed? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:176
                                                                                  • Book#changes_include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:80
                                                                                    • Book#changes_include? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:195
                                                                                      • Book#changed_attributes $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:171
                                                                                      • ActiveSupport::HashWithIndifferentAccess#key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:149
                                                                                        • ActiveSupport::HashWithIndifferentAccess#convert_key $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:269
                                                                                          • Kernel#kind_of? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:270
                                                                                        • Hash#key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:150
                                                                                    • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                                      • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                                        • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                                        • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                                      • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                        • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                      • ActiveRecord::Attribute::FromUser#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                                        • ActiveRecord::Attribute::FromUser#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                                        • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                        • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#changed_in_place? -> block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                          • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                            • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /usr/local/lib/ruby/2.5.0/delegate.rb:392
                                                                                            • ActiveRecord::Type::DateTime#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:79
                                                                                  • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:178
                                                                                  • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:179
                                                                                • Book#clone_attribute_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:374
                                                                                  • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                    • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                    • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                      • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                        • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                      • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                  • ActiveSupport::TimeWithZone#duplicable? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/duplicable.rb:24
                                                                                  • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:376
                                                                                    • Module#method_added $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:376
                                                                                    • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:376
                                                                                      • Kernel#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:376
                                                                              • Book#write_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/write.rb:55
                                                                                • Book#write_attribute_with_type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/write.rb:69
                                                                                  • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/write.rb:70
                                                                                  • ActiveRecord::AttributeSet#write_from_user $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:38
                                                                                    • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                      • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                    • ActiveRecord::Attribute::FromUser#with_value_from_user $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:57
                                                                                      • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:58
                                                                                      • ActiveRecord::Attribute::FromUser.from_user $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:8
                                                                                        • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:9
                                                                                          • ActiveRecord::Attribute::FromUser#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:29
                                                                                    • ActiveRecord::LazyAttributeHash#[]= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:43
                                                                                      • Kernel#frozen? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:44
                                                                              • Book#store_original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:169
                                                                                • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                                • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                  • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                • ActiveRecord::Attribute::FromUser#value_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:45
                                                                                  • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                    • ActiveRecord::Attribute::FromUser#original_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:41
                                                                                      • ActiveRecord::Attribute::FromUser#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:109
                                                                                        • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#type_cast_from_user $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/time_zone_conversion.rb:11
                                                                                          • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter.const_missing /usr/local/lib/ruby/2.5.0/delegate.rb:56
                                                                                            • Module#const_get /usr/local/lib/ruby/2.5.0/delegate.rb:57
                                                                                          • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/time_zone_conversion.rb:12
                                                                                          • Kernel#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/time_zone_conversion.rb:14
                                                                                          • Time.zone $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/zones.rb:12
                                                                                            • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/zones.rb:13
                                                                                            • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/zones.rb:13
                                                                                          • Time#in_time_zone $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/date_and_time/zones.rb:19
                                                                                            • Time.find_zone! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/zones.rb:55
                                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/zones.rb:56
                                                                                            • Time#acts_like? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/acts_like.rb:7
                                                                                              • Symbol#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/acts_like.rb:8
                                                                                              • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/acts_like.rb:8
                                                                                            • Time#time_with_zone $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/date_and_time/zones.rb:32
                                                                                              • Time#utc? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/date_and_time/zones.rb:34
                                                                                              • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/date_and_time/zones.rb:34
                                                                                                • ActiveSupport::TimeWithZone#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:47
                                                                                                  • ActiveSupport::TimeWithZone#transfer_time_values_to_utc_constructor $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:402
                                                                                                    • Time#year $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                    • Time#month $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                    • Time#day $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                    • Time#hour $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                    • Time#min $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                    • Time#sec $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                    • Time#subsec $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                      • Integer#to_r $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                    • Integer#+ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                      • Rational#coerce $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                      • Rational#+ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                    • #<Class:Time>#utc $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                      • Numeric#divmod $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                        • Numeric#div $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                          • Rational#/ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                          • Rational#floor $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                        • Integer#* $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                        • Rational#- $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                        • Rational#/ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                        • Rational#floor $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                      • Rational#* $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                  • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#type_cast_for_database -> block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                    • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                      • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /usr/local/lib/ruby/2.5.0/delegate.rb:392
                                                                                      • ActiveRecord::Type::DateTime#type_cast_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/date_time.rb:10
                                                                                        • ActiveSupport::TimeWithZone#acts_like? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/acts_like.rb:7
                                                                                          • Symbol#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/acts_like.rb:8
                                                                                          • ActiveSupport::TimeWithZone#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:367
                                                                                            • Symbol#to_sym $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:369
                                                                                            • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:370
                                                                                        • ActiveRecord::Base.default_timezone $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                        • ActiveSupport::TimeWithZone#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:367
                                                                                          • Symbol#to_sym $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:369
                                                                                          • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:370
                                                                                        • ActiveSupport::TimeWithZone#utc $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:59
                                                                              • Book#save_changed_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:111
                                                                                • Book#clear_changed_attributes_cache $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:186
                                                                                • Book#changes_include? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:195
                                                                                  • Book#changed_attributes $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:171
                                                                                  • ActiveSupport::HashWithIndifferentAccess#key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:149
                                                                                    • ActiveSupport::HashWithIndifferentAccess#convert_key $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:269
                                                                                      • Kernel#kind_of? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:270
                                                                                    • Hash#key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:150
                                                                                • Book#_field_changed? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:142
                                                                                  • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                    • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                  • ActiveRecord::Attribute::FromUser#changed_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:49
                                                                                    • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                    • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#changed? -> block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                      • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                        • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /usr/local/lib/ruby/2.5.0/delegate.rb:392
                                                                                        • ActiveRecord::Type::DateTime#changed? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:71
                                                                                          • BasicObject#!= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:72
                                                                                            • Comparable#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:72
                                                                                              • ActiveSupport::TimeWithZone#<=> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:217
                                                                                                • ActiveSupport::TimeWithZone#utc $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:59
                                                                                                • Time#compare_with_coercion $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:258
                                                                                                  • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:260
                                                                                                  • ActiveSupport::TimeWithZone#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:346
                                                                                                  • ActiveSupport::TimeWithZone#to_time $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:332
                                                                                                    • ActiveSupport::TimeWithZone#preserve_timezone $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:67
                                                                                                    • ActiveSupport::TimeWithZone#localtime $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:79
                                                                                                      • ActiveSupport::TimeWithZone#utc $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:59
                                                                                                      • Time#getlocal $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:80
                                                                                                  • Time#<=> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:263
                                                                                • Book#set_attribute_was $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:262
                                                                                  • Book#changed_attributes $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:171
                                                                                  • ActiveSupport::HashWithIndifferentAccess#[]= $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:96
                                                                                    • ActiveSupport::HashWithIndifferentAccess#convert_key $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:269
                                                                                      • Kernel#kind_of? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:270
                                                                                    • ActiveSupport::HashWithIndifferentAccess#convert_value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:273
                                                                                      • ActiveSupport::TimeWithZone#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:346
                                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:347
                                                                                      • ActiveSupport::TimeWithZone#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:346
                                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:347
                                                                                    • ActiveSupport::HashWithIndifferentAccess#[]= $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:97
                                                                        • Book#_update_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/callbacks.rb:309
                                                                          • Book#_run_update_callbacks $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:777
                                                                            • Book#_update_callbacks -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                              • Book#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                                                                • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                  • Book._update_callbacks -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                    • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                            • Book#__run_callbacks__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:86
                                                                              • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:529
                                                                              • ActiveSupport::Callbacks::CallbackChain#compile $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:553
                                                                              • #<Class:ActiveSupport::Callbacks::Filters::Environment>#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:91
                                                                                • Struct#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:91
                                                                              • ActiveSupport::Callbacks::CallbackSequence#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:503
                                                                                • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:504
                                                                                • ActiveSupport::Callbacks::CallbackChain#block (2 levels) in compile $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:555
                                                                                  • ActiveSupport::Callbacks::Filters::End#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:115
                                                                                    • ActiveSupport::Callbacks::Filters::Environment#run_block $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:116
                                                                                    • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:117
                                                                                    • Book#block in _update_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/callbacks.rb:310
                                                                                      • Book#_update_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:128
                                                                                        • Book#partial_writes? -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:113
                                                                                          • Book#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:113
                                                                                            • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:113
                                                                                              • Book#partial_writes -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                                • Book#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                                  • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                                                                                  • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                                  • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                                    • Book.partial_writes -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                      • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                        • Book#keys_for_partial_write $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:138
                                                                                          • Book#changed $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:141
                                                                                            • Book#changed_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:57
                                                                                              • Book#changed_attributes $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:171
                                                                                              • Book#attributes_changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:146
                                                                                                • Book#changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:153
                                                                                                  • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                                                  • Book.attribute_names $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:186
                                                                                                  • Array#select $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                                                    • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                                                      • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                                                        • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                                                          • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                        • ActiveRecord::Attribute::FromDatabase#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                                                          • ActiveRecord::Attribute::FromDatabase#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                          • ActiveRecord::Type::Integer#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:79
                                                                                                    • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                                                      • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                                                        • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                                                          • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                        • ActiveRecord::Attribute::FromDatabase#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                                                          • ActiveRecord::Attribute::FromDatabase#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                          • ActiveRecord::Type::String#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:8
                                                                                                            • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:9
                                                                                                    • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                                                      • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                                                        • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                                                          • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                        • ActiveRecord::Attribute::FromDatabase#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                                                          • ActiveRecord::Attribute::FromDatabase#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                          • ActiveRecord::Type::Text#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:8
                                                                                                            • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:9
                                                                                                    • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                                                      • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                                                        • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                                                          • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                        • ActiveRecord::Attribute::FromUser#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                                                          • ActiveRecord::Attribute::FromUser#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                                                          • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                          • ActiveRecord::Type::Integer#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:79
                                                                                                    • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                                                      • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                                                        • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                                                          • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                        • ActiveRecord::Attribute::FromDatabase#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                                                          • ActiveRecord::Attribute::FromDatabase#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                          • ActiveRecord::Type::Integer#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:79
                                                                                                    • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                                                      • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                                                        • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                                                          • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                        • ActiveRecord::Attribute::FromDatabase#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                                                          • ActiveRecord::Attribute::FromDatabase#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                          • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#changed_in_place? -> block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                                            • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                                              • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /usr/local/lib/ruby/2.5.0/delegate.rb:392
                                                                                                              • ActiveRecord::Type::DateTime#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:79
                                                                                                    • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                                                      • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                                                        • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                                                          • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                        • ActiveRecord::Attribute::FromUser#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                                                          • ActiveRecord::Attribute::FromUser#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                                                          • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                          • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#changed_in_place? -> block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                                            • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                                              • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /usr/local/lib/ruby/2.5.0/delegate.rb:392
                                                                                                              • ActiveRecord::Type::DateTime#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:79
                                                                                                • Enumerable#each_with_object $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:147
                                                                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:147
                                                                                              • ActiveSupport::HashWithIndifferentAccess#reverse_merge $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:208
                                                                                                • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:209
                                                                                                • ActiveSupport::HashWithIndifferentAccess.new_from_hash_copying_default $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:75
                                                                                                  • Hash#to_hash $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:76
                                                                                                  • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:77
                                                                                                    • ActiveSupport::HashWithIndifferentAccess#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:58
                                                                                                      • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:59
                                                                                                      • Hash#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:60
                                                                                                      • ActiveSupport::HashWithIndifferentAccess#update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:127
                                                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:128
                                                                                                        • Hash#to_hash $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:131
                                                                                                        • Hash#each_pair $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:131
                                                                                                  • Kernel#tap $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:77
                                                                                                    • ActiveSupport::HashWithIndifferentAccess.block in new_from_hash_copying_default $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:77
                                                                                                      • Hash#default $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:78
                                                                                                      • Hash#default= $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:78
                                                                                                      • Hash#default_proc $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:79
                                                                                                • ActiveSupport::HashWithIndifferentAccess#reverse_merge $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/reverse_merge.rb:12
                                                                                                  • ActiveSupport::HashWithIndifferentAccess#merge $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:198
                                                                                                    • ActiveSupport::HashWithIndifferentAccess#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:189
                                                                                                      • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:190
                                                                                                      • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:190
                                                                                                        • ActiveSupport::HashWithIndifferentAccess#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:58
                                                                                                          • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:59
                                                                                                          • Hash#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:60
                                                                                                          • ActiveSupport::HashWithIndifferentAccess#update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:127
                                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:128
                                                                                                            • Hash#update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:129
                                                                                                      • Kernel#tap $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:190
                                                                                                        • ActiveSupport::HashWithIndifferentAccess#block in dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:190
                                                                                                          • ActiveSupport::HashWithIndifferentAccess#set_defaults $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:290
                                                                                                            • Hash#default_proc $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:291
                                                                                                            • ActiveSupport::HashWithIndifferentAccess#default $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:67
                                                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:68
                                                                                                              • Hash#default $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:71
                                                                                                            • Hash#default= $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:294
                                                                                                    • ActiveSupport::HashWithIndifferentAccess#update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:127
                                                                                                      • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:128
                                                                                                      • Hash#update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:129
                                                                                              • Kernel#freeze $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:63
                                                                                            • Hash#keys $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:142
                                                                                          • Book#persistable_attribute_names $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attributes.rb:13
                                                                                            • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attributes.rb:13
                                                                                            • Book.persistable_attribute_names $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attributes.rb:101
                                                                                          • Array#& $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:139
                                                                                        • Book#_update_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/locking/optimistic.rb:78
                                                                                          • Book#locking_enabled? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/locking/optimistic.rb:58
                                                                                            • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/locking/optimistic.rb:59
                                                                                            • Book.locking_enabled? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/locking/optimistic.rb:145
                                                                                              • Book.lock_optimistically -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                              • Book.columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attributes.rb:97
                                                                                              • Book.locking_column $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/locking/optimistic.rb:156
                                                                                          • Book#_update_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:510
                                                                                            • Book#arel_attributes_with_values_for_update $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:385
                                                                                              • Book#attributes_for_update $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:283
                                                                                                • Book#tag_types -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                                  • Book#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                                    • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                                                                                    • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                                    • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                                      • Book.tag_types -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                        • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                • Array#map $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:284
                                                                                                  • Book#block in attributes_for_update $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:284
                                                                                                    • Symbol#to_s $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:284
                                                                                                    • String#singularize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/string/inflections.rb:54
                                                                                                      • ActiveSupport::Inflector.singularize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:48
                                                                                                        • ActiveSupport::Inflector.inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:203
                                                                                                          • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:204
                                                                                                          • ActiveSupport::Inflector::Inflections.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:30
                                                                                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                        • ActiveSupport::Inflector.apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:372
                                                                                                          • String#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:373
                                                                                                          • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:373
                                                                                                            • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:373
                                                                                                              • String#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:373
                                                                                                          • ActiveSupport::Inflector.inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:203
                                                                                                            • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:204
                                                                                                            • ActiveSupport::Inflector::Inflections.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:30
                                                                                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                          • String#downcase $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:375
                                                                                                          • String#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:375
                                                                                                          • Array#include? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:375
                                                                                                          • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                • Book#attributes_for_update $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:409
                                                                                                  • Array#reject $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:410
                                                                                                    • Book#block in attributes_for_update $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:410
                                                                                                      • Book#readonly_attribute? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:423
                                                                                                        • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:424
                                                                                                        • Book.readonly_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/readonly_attributes.rb:18
                                                                                                          • Book._attr_readonly -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                            • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                        • Array#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:424
                                                                                                    • Book#block in attributes_for_update $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:410
                                                                                                      • Book#readonly_attribute? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:423
                                                                                                        • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:424
                                                                                                        • Book.readonly_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/readonly_attributes.rb:18
                                                                                                          • Book._attr_readonly -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                            • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                        • Array#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:424
                                                                                                • Array#delete_if $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:285
                                                                                                  • Book#block in attributes_for_update $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:285
                                                                                                    • Array#include? $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:285
                                                                                                  • Book#block in attributes_for_update $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:285
                                                                                                    • Array#include? $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:285
                                                                                              • Book#arel_attributes_with_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:398
                                                                                                • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:400
                                                                                                • Book.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:402
                                                                                                  • Book#block in arel_attributes_with_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:402
                                                                                                    • Arel::Table#[] $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:99
                                                                                                      • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                        • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                    • Book#typecasted_attribute_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:431
                                                                                                      • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                          • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                    • Struct#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:403
                                                                                                      • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:403
                                                                                                      • Arel::Table#hash $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:119
                                                                                                        • String#hash $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:123
                                                                                                      • String#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:403
                                                                                                  • Book#block in arel_attributes_with_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:402
                                                                                                    • Arel::Table#[] $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:99
                                                                                                      • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                        • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                    • Book#typecasted_attribute_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:431
                                                                                                      • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                          • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                    • Struct#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:403
                                                                                                      • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:403
                                                                                                      • Arel::Table#hash $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:119
                                                                                                        • String#hash $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:123
                                                                                                      • String#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:403
                                                                                            • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:515
                                                                                            • Book.unscoped $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:32
                                                                                              • Kernel#block_given? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:33
                                                                                              • Book.relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:253
                                                                                                • Book.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                  • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                    • Book.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                      • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                  • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                    • Book::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                • Book.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                            • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                              • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                  • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                    • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                  • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                            • Book#id_was $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:384
                                                                                              • Book#attribute_was $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:184
                                                                                                • Book#attribute_changed? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:176
                                                                                                  • Book#changes_include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:80
                                                                                                    • Book#changes_include? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:195
                                                                                                      • Book#changed_attributes $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:171
                                                                                                      • ActiveSupport::HashWithIndifferentAccess#key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:149
                                                                                                        • ActiveSupport::HashWithIndifferentAccess#convert_key $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:269
                                                                                                          • Kernel#kind_of? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:270
                                                                                                        • Hash#key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:150
                                                                                                    • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                                                      • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                                                        • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                                                        • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                                                      • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                        • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                      • ActiveRecord::Attribute::FromDatabase#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                                                        • ActiveRecord::Attribute::FromDatabase#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                        • ActiveRecord::Type::Integer#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:79
                                                                                                  • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:178
                                                                                                  • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:179
                                                                                                • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                  • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                    • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                    • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                      • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                        • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                      • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                            • Book::ActiveRecord_Relation#_update_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:73
                                                                                              • Book::ActiveRecord_Relation#substitute_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:95
                                                                                                • Enumerable#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:96
                                                                                                  • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:96
                                                                                                    • Book::ActiveRecord_Relation#block in substitute_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:96
                                                                                                      • Book.columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attributes.rb:97
                                                                                                      • #<Class:0x000055592d6f2990>#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:97
                                                                                                    • Book::ActiveRecord_Relation#block in substitute_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:96
                                                                                                      • Book.columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attributes.rb:97
                                                                                                      • #<Class:0x000055592d6f2990>#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:97
                                                                                                • Enumerable#each_with_index $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:100
                                                                                                • Enumerable#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:100
                                                                                                  • Enumerator#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:100
                                                                                                    • Enumerable#each_with_index $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:100
                                                                                                      • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:100
                                                                                                        • Book::ActiveRecord_Relation#block in substitute_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:100
                                                                                                          • Book.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                                                                                            • Book.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                                                                                              • Book.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                                                                                • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                  • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                    • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                    • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                • Book.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                  • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                              • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                                                                                                • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                                                                                  • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                                                                                    • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                  • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                                                                                                  • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                                                                                                    • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                                                                                                      • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                        • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                          • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#substitute_at $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:280
                                                                                                            • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:281
                                                                                                              • BasicObject#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:281
                                                                                                        • Book::ActiveRecord_Relation#block in substitute_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:100
                                                                                                          • Book.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                                                                                            • Book.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                                                                                              • Book.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                                                                                • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                  • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                    • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                    • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                • Book.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                  • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                              • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                                                                                                • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                                                                                  • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                                                                                    • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                  • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                                                                                                  • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                                                                                                    • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                                                                                                      • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                        • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                          • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#substitute_at $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:280
                                                                                                            • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:281
                                                                                                              • BasicObject#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:281
                                                                                              • Book.unscoped $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:32
                                                                                                • Kernel#block_given? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:33
                                                                                                • Book.relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:253
                                                                                                  • Book.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                  • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                    • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                      • Book.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                        • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                      • Book::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                  • Book.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                              • Book.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                              • Book.primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/primary_key.rb:72
                                                                                              • Book::ActiveRecord_Relation#where $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:568
                                                                                                • Hash#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:569
                                                                                                • Hash#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:571
                                                                                                • Book::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                  • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                    • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                      • Book::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                        • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                        • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                        • Book::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                • Book::ActiveRecord_Relation#where! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:578
                                                                                                  • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:579
                                                                                                  • Book::ActiveRecord_Relation#sanitize_for_mass_assignment $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/forbidden_attributes_protection.rb:19
                                                                                                    • Kernel#respond_to? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/forbidden_attributes_protection.rb:20
                                                                                                  • ActiveRecord::PredicateBuilder.references $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:91
                                                                                                    • Enumerable#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:92
                                                                                                      • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:92
                                                                                                        • ActiveRecord::PredicateBuilder.block in references $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:92
                                                                                                          • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:93
                                                                                                          • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:96
                                                                                                          • String#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:97
                                                                                                    • Array#compact $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:99
                                                                                                  • Book::ActiveRecord_Relation#references! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:202
                                                                                                    • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:203
                                                                                                    • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:204
                                                                                                    • Book::ActiveRecord_Relation#references_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                    • Array#| $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:206
                                                                                                    • Book::ActiveRecord_Relation#references_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                      • Book::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                  • Book::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                  • Book::ActiveRecord_Relation#build_where $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:947
                                                                                                    • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:949
                                                                                                    • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:949
                                                                                                    • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:951
                                                                                                    • ActiveRecord::PredicateBuilder.resolve_column_aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:8
                                                                                                      • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:11
                                                                                                      • Hash#keys $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:12
                                                                                                      • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:12
                                                                                                        • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:12
                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:12
                                                                                                    • Book::ActiveRecord_Relation#create_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:966
                                                                                                      • Enumerable#partition $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:967
                                                                                                        • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:967
                                                                                                          • Book::ActiveRecord_Relation#block in create_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:967
                                                                                                            • ActiveRecord::PredicateBuilder.can_be_bound? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:149
                                                                                                              • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:150
                                                                                                              • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:151
                                                                                                              • ActiveRecord::PredicateBuilder.handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:131
                                                                                                                • Enumerable#detect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                    • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                    • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                    • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                    • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                      • ActiveRecord::Base.=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:228
                                                                                                                        • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:229
                                                                                                                    • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                    • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                • Array#last $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                            • Book.columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attributes.rb:97
                                                                                                            • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:969
                                                                                                            • Hash#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:969
                                                                                                            • Book.reflect_on_aggregation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:61
                                                                                                              • Book.aggregate_reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                              • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:62
                                                                                                      • Enumerable#partition $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:973
                                                                                                        • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:973
                                                                                                      • Book::ActiveRecord_Relation#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:48
                                                                                                        • Book.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                                                                                          • Book.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                                                                                            • Book.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                                                                              • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                  • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                  • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                              • Book.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                            • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                                                                                              • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                                                                                • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                                                                                  • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                                                                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                              • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                                                                                                • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                                                                                                  • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                                                                                                    • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                      • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                        • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                        • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                      • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:982
                                                                                                        • Book::ActiveRecord_Relation#block in create_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:982
                                                                                                          • Book.columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attributes.rb:97
                                                                                                          • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:983
                                                                                                          • Array#push $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:983
                                                                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#substitute_at $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:280
                                                                                                            • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:281
                                                                                                              • BasicObject#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:281
                                                                                                      • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:987
                                                                                                      • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:994
                                                                                                    • Book::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                    • Book::ActiveRecord_Relation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                      • Book::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                    • Book.expand_hash_conditions_for_aggregates $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/sanitization.rb:56
                                                                                                      • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/sanitization.rb:58
                                                                                                        • Book.block in expand_hash_conditions_for_aggregates $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/sanitization.rb:58
                                                                                                          • String#to_sym $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/sanitization.rb:59
                                                                                                          • Book.reflect_on_aggregation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:61
                                                                                                            • Book.aggregate_reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                              • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                            • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:62
                                                                                                    • Book::ActiveRecord_Relation#add_relations_to_bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1166
                                                                                                      • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1167
                                                                                                      • Hash#each_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1168
                                                                                                        • Book::ActiveRecord_Relation#block in add_relations_to_bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1168
                                                                                                          • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1169
                                                                                                          • Book::ActiveRecord_Relation#add_relations_to_bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1166
                                                                                                            • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1167
                                                                                                    • ActiveRecord::PredicateBuilder.build_from_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:20
                                                                                                      • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:23
                                                                                                        • ActiveRecord::PredicateBuilder.block in build_from_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:23
                                                                                                          • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:26
                                                                                                          • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:38
                                                                                                          • String#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:40
                                                                                                          • ActiveRecord::PredicateBuilder.expand $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:52
                                                                                                            • Book._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                              • Book._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                              • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                                            • Arel::Table#[] $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:99
                                                                                                              • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                                • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                            • ActiveRecord::PredicateBuilder.build $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:126
                                                                                                              • ActiveRecord::PredicateBuilder.handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:131
                                                                                                                • Enumerable#detect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                    • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                    • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                    • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                    • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                      • ActiveRecord::Base.=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:228
                                                                                                                        • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:229
                                                                                                                    • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                    • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                • Array#last $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                              • ActiveRecord::PredicateBuilder.block in <class:PredicateBuilder> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:117
                                                                                                                • Arel::Attributes::Attribute#eq $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:15
                                                                                                                  • Arel::Attributes::Attribute#quoted_node $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:207
                                                                                                                    • Arel::Nodes.build_quoted $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:81
                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                  • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:16
                                                                                                                    • Arel::Nodes::Equality#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                      • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                          • Array#concat $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:45
                                                                                                  • Book::ActiveRecord_Relation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                    • Book::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                              • Book::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                              • Book::ActiveRecord_Relation#arel $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:857
                                                                                                • Book::ActiveRecord_Relation#build_arel $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:863
                                                                                                  • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:864
                                                                                                    • Arel::SelectManager#initialize $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:9
                                                                                                      • Arel::SelectManager#initialize $GemPath0/gems/arel-6.0.4/lib/arel/tree_manager.rb:11
                                                                                                      • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:11
                                                                                                        • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_statement.rb:7
                                                                                                          • Arel::Nodes::SelectCore#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_core.rb:7
                                                                                                            • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_core.rb:8
                                                                                                            • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_core.rb:9
                                                                                                              • Arel::Nodes::JoinSource#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/join_source.rb:9
                                                                                                                • Arel::Nodes::JoinSource#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                  • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                        • Arel::Nodes::SelectStatement#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_statement.rb:7
                                                                                                          • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_statement.rb:8
                                                                                                      • Array#last $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:12
                                                                                                      • Arel::SelectManager#from $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:87
                                                                                                        • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:88
                                                                                                        • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:91
                                                                                                  • Book::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                  • Book::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                  • Array#- $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:868
                                                                                                    • Arel::Nodes::Equality#eql? $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:22
                                                                                                      • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                                                      • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                                                  • Book::ActiveRecord_Relation#collapse_wheres $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:937
                                                                                                    • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:938
                                                                                                      • Book::ActiveRecord_Relation#block in collapse_wheres $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:938
                                                                                                        • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:939
                                                                                                    • Array#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                                                                      • Array#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:24
                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:944
                                                                                                      • Arel::Nodes::And#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/and.rb:6
                                                                                                        • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/and.rb:7
                                                                                                    • Arel::SelectManager#where $GemPath0/gems/arel-6.0.4/lib/arel/tree_manager.rb:38
                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/tree_manager.rb:39
                                                                                                  • Book::ActiveRecord_Relation#having_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                  • Book::ActiveRecord_Relation#limit_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                  • Book::ActiveRecord_Relation#offset_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                  • Book::ActiveRecord_Relation#group_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                  • Book::ActiveRecord_Relation#build_order $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1099
                                                                                                    • Book::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                    • Array#uniq $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1100
                                                                                                    • Array#reject! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1101
                                                                                                  • Book::ActiveRecord_Relation#build_select $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1057
                                                                                                    • Book::ActiveRecord_Relation#select_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                    • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1058
                                                                                                    • Book.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                    • Arel.star $GemPath0/gems/arel-6.0.4/lib/arel.rb:30
                                                                                                      • Arel.sql $GemPath0/gems/arel-6.0.4/lib/arel.rb:26
                                                                                                        • Class#new $GemPath0/gems/arel-6.0.4/lib/arel.rb:27
                                                                                                          • String#initialize $GemPath0/gems/arel-6.0.4/lib/arel.rb:27
                                                                                                    • Arel::Table#[] $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:99
                                                                                                      • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                        • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                    • Arel::SelectManager#project $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:132
                                                                                                      • Array#map $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:135
                                                                                                        • Arel::SelectManager#block in project $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:135
                                                                                                          • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                                                          • Array#include? $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                                                      • Array#concat $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:135
                                                                                                  • Book::ActiveRecord_Relation#distinct_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                  • Arel::SelectManager#distinct $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:149
                                                                                                  • Book::ActiveRecord_Relation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                  • Book::ActiveRecord_Relation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                              • Book.primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/primary_key.rb:72
                                                                                              • Arel::SelectManager#compile_update $GemPath0/gems/arel-6.0.4/lib/arel/crud.rb:5
                                                                                                • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/crud.rb:6
                                                                                                  • Arel::UpdateManager#initialize $GemPath0/gems/arel-6.0.4/lib/arel/update_manager.rb:3
                                                                                                    • Arel::UpdateManager#initialize $GemPath0/gems/arel-6.0.4/lib/arel/tree_manager.rb:11
                                                                                                    • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/update_manager.rb:5
                                                                                                      • Arel::Nodes::UpdateStatement#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/update_statement.rb:7
                                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/crud.rb:8
                                                                                                • Array#first $GemPath0/gems/arel-6.0.4/lib/arel/crud.rb:11
                                                                                                • Array#first $GemPath0/gems/arel-6.0.4/lib/arel/crud.rb:11
                                                                                                • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/crud.rb:11
                                                                                                • Arel::UpdateManager#key= $GemPath0/gems/arel-6.0.4/lib/arel/update_manager.rb:14
                                                                                                  • Arel::Nodes.build_quoted $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:81
                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:87
                                                                                                    • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:90
                                                                                                      • Arel::Nodes::Quoted#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/unary.rb:7
                                                                                                        • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/unary.rb:8
                                                                                                • Arel::UpdateManager#table $GemPath0/gems/arel-6.0.4/lib/arel/update_manager.rb:29
                                                                                                • Arel::UpdateManager#set $GemPath0/gems/arel-6.0.4/lib/arel/update_manager.rb:43
                                                                                                  • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/update_manager.rb:44
                                                                                                  • Array#map $GemPath0/gems/arel-6.0.4/lib/arel/update_manager.rb:47
                                                                                                    • Arel::UpdateManager#block in set $GemPath0/gems/arel-6.0.4/lib/arel/update_manager.rb:47
                                                                                                      • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/update_manager.rb:49
                                                                                                        • Arel::Nodes::UnqualifiedColumn#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/unary.rb:7
                                                                                                          • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/unary.rb:8
                                                                                                      • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/update_manager.rb:48
                                                                                                        • Arel::Nodes::Assignment#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                          • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                    • Arel::UpdateManager#block in set $GemPath0/gems/arel-6.0.4/lib/arel/update_manager.rb:47
                                                                                                      • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/update_manager.rb:49
                                                                                                        • Arel::Nodes::UnqualifiedColumn#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/unary.rb:7
                                                                                                          • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/unary.rb:8
                                                                                                      • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/update_manager.rb:48
                                                                                                        • Arel::Nodes::Assignment#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                          • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                • Arel::UpdateManager#order $GemPath0/gems/arel-6.0.4/lib/arel/update_manager.rb:22
                                                                                                • Arel::UpdateManager#wheres= $GemPath0/gems/arel-6.0.4/lib/arel/update_manager.rb:34
                                                                                              • Book.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                                                                                • Book.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                                                                                  • Book.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                                                                    • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                      • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                        • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                        • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                    • Book.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                      • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                  • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                                                                                    • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                                                                      • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                                                                        • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                      • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                    • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                                                                                      • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                                                                                        • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                                                                                          • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                            • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                              • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                              • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#update $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/query_cache.rb:12
                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#update $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:113
                                                                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#to_sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:10
                                                                                                    • Kernel#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:11
                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#collector $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:138
                                                                                                      • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:140
                                                                                                        • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#initialize $GemPath0/gems/arel-6.0.4/lib/arel/collectors/sql_string.rb:8
                                                                                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#initialize $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:4
                                                                                                    • Arel::Visitors::SQLite#accept $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:6
                                                                                                      • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                        • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                        • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                        • Arel::Visitors::SQLite#visit_Arel_Nodes_UpdateStatement $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:99
                                                                                                          • NilClass#nil? $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:100
                                                                                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Table $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:620
                                                                                                              • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:775
                                                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:776
                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:50
                                                                                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                    • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                    • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                          • Arel::Visitors::SQLite#inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:791
                                                                                                            • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                            • Enumerable#inject $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                              • Enumerator#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                  • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                    • Arel::Visitors::SQLite#block in inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                      • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                        • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                        • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                        • Arel::Visitors::SQLite#visit_Arel_Nodes_Assignment $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:659
                                                                                                                          • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:661
                                                                                                                          • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:661
                                                                                                                          • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:661
                                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Nodes_UnqualifiedColumn $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:704
                                                                                                                              • Arel::Nodes::UnqualifiedColumn#name $GemPath0/gems/arel-6.0.4/lib/arel/nodes/unqualified_column.rb:15
                                                                                                                                • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/nodes/unqualified_column.rb:16
                                                                                                                              • Arel::Visitors::SQLite#quote_column_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:780
                                                                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:781
                                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                  • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                  • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Nodes_BindParam $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:722
                                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#add_bind $GemPath0/gems/arel-6.0.4/lib/arel/collectors/sql_string.rb:13
                                                                                                                                • Arel::Visitors::SQLite#block in visit_Arel_Nodes_BindParam $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:723
                                                                                                                                • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                      • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                    • Arel::Visitors::SQLite#block in inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                      • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                        • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                        • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                        • Arel::Visitors::SQLite#visit_Arel_Nodes_Assignment $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:659
                                                                                                                          • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:661
                                                                                                                          • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:661
                                                                                                                          • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:661
                                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Nodes_UnqualifiedColumn $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:704
                                                                                                                              • Arel::Nodes::UnqualifiedColumn#name $GemPath0/gems/arel-6.0.4/lib/arel/nodes/unqualified_column.rb:15
                                                                                                                                • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/nodes/unqualified_column.rb:16
                                                                                                                              • Arel::Visitors::SQLite#quote_column_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:780
                                                                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:781
                                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                  • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                  • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Nodes_BindParam $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:722
                                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#add_bind $GemPath0/gems/arel-6.0.4/lib/arel/collectors/sql_string.rb:13
                                                                                                                                • Arel::Visitors::SQLite#block in visit_Arel_Nodes_BindParam $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:723
                                                                                                                                • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                          • Arel::Visitors::SQLite#inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:791
                                                                                                            • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                            • Enumerable#inject $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                              • Enumerator#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                  • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                    • Arel::Visitors::SQLite#block in inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                      • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                        • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                        • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                        • Arel::Visitors::SQLite#visit_Arel_Nodes_And $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:649
                                                                                                                          • Arel::Visitors::SQLite#inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:791
                                                                                                                            • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                            • Enumerable#inject $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                              • Enumerator#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                  • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                    • Arel::Visitors::SQLite#block in inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                      • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                        • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                        • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                        • Arel::Visitors::SQLite#visit_Arel_Nodes_Equality $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:672
                                                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Attributes_Attribute $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:709
                                                                                                                                              • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                                                              • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                                                              • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:775
                                                                                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:776
                                                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:50
                                                                                                                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                    • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                    • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                              • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:711
                                                                                                                                              • Arel::Visitors::SQLite#quote_column_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:780
                                                                                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:781
                                                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                  • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                  • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                          • Kernel#nil? $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:677
                                                                                                                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Nodes_BindParam $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:722
                                                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#add_bind $GemPath0/gems/arel-6.0.4/lib/arel/collectors/sql_string.rb:13
                                                                                                                                                • Arel::Visitors::SQLite#block in visit_Arel_Nodes_BindParam $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:723
                                                                                                                                                • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                    • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:13
                                                                                                      • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:13
                                                                                                        • Array#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:13
                                                                                                    • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#compile $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:133
                                                                                                      • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#compile $GemPath0/gems/arel-6.0.4/lib/arel/collectors/sql_string.rb:19
                                                                                                        • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#value $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:8
                                                                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#exec_delete $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:306
                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#exec_query $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:276
                                                                                                      • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:277
                                                                                                        • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in exec_query $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:277
                                                                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:23
                                                                                                            • Kernel#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:24
                                                                                                            • ActiveRecord::Type::Integer#type_cast_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:20
                                                                                                              • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:8
                                                                                                                • TrueClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:10
                                                                                                                • FalseClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:11
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:12
                                                                                                                • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:97
                                                                                                                  • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:98
                                                                                                                  • ActiveRecord::Type::Integer#cast_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:34
                                                                                                                    • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:39
                                                                                                              • ActiveRecord::Type::Integer#ensure_in_range $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:43
                                                                                                                • Range#cover? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                                                                  • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                                                                  • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:216
                                                                                                              • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:218
                                                                                                              • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:220
                                                                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:118
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:120
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:120
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:120
                                                                                                                • TrueClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:122
                                                                                                                • FalseClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:123
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:125
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:126
                                                                                                                • Time.=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:15
                                                                                                                  • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:16
                                                                                                                  • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:16
                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#types_which_need_no_typecasting $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:96
                                                                                                                • NilClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:127
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:127
                                                                                                        • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in exec_query $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:277
                                                                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:23
                                                                                                            • ActiveSupport::TimeWithZone#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:367
                                                                                                              • Symbol#to_sym $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:369
                                                                                                              • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:370
                                                                                                                • ActiveSupport::TimeWithZone#respond_to_missing? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:375
                                                                                                                  • Symbol#to_sym $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:376
                                                                                                                  • ActiveSupport::TimeWithZone#time $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:54
                                                                                                                    • ActiveSupport::TimeWithZone#period $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:68
                                                                                                                      • ActiveSupport::TimeZone#period_for_utc $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/values/time_zone.rb:411
                                                                                                                        • TZInfo::TimezoneProxy#period_for_utc $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/timezone_proxy.rb:29
                                                                                                                          • TZInfo::TimezoneProxy#real_timezone $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/timezone_proxy.rb:91
                                                                                                                          • TZInfo::DataTimezone#period_for_utc $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/data_timezone.rb:13
                                                                                                                            • TZInfo::DataTimezone#info $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/info_timezone.rb:22
                                                                                                                            • TZInfo::ZoneinfoTimezoneInfo#period_for_utc $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/transition_data_timezone_info.rb:79
                                                                                                                              • Class#new $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/transition_data_timezone_info.rb:115
                                                                                                                                • TZInfo::TimezonePeriod#initialize $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/timezone_period.rb:21
                                                                                                                    • TZInfo::TimezonePeriod#to_local $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/timezone_period.rb:202
                                                                                                                      • TZInfo::TimezoneOffset#to_local $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/timezone_offset.rb:62
                                                                                                                        • TZInfo::TimeOrDateTime.wrap $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/time_or_datetime.rb:320
                                                                                                                          • Kernel#is_a? $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/time_or_datetime.rb:321
                                                                                                                          • Class#new $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/time_or_datetime.rb:321
                                                                                                                            • TZInfo::TimeOrDateTime#initialize $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/time_or_datetime.rb:17
                                                                                                                              • Kernel#is_a? $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/time_or_datetime.rb:22
                                                                                                                              • TZInfo::RubyCoreSupport.time_nsec $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/ruby_core_support.rb:111
                                                                                                                                • Time#nsec $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/ruby_core_support.rb:112
                                                                                                                              • Kernel#Rational $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/time_or_datetime.rb:27
                                                                                                                                • Integer#integer? $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/time_or_datetime.rb:27
                                                                                                                                • Integer#integer? $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/time_or_datetime.rb:27
                                                                                                                              • Time#utc? $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/time_or_datetime.rb:29
                                                                                                                          • Kernel#block_given? $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/time_or_datetime.rb:323
                                                                                                                          • TZInfo::TimezoneOffset#block in to_local $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/timezone_offset.rb:63
                                                                                                                            • TZInfo::TimeOrDateTime#+ $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/time_or_datetime.rb:252
                                                                                                                          • Kernel#is_a? $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/time_or_datetime.rb:326
                                                                                                                          • Kernel#is_a? $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/time_or_datetime.rb:328
                                                                                                                          • TZInfo::TimeOrDateTime#to_time $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/time_or_datetime.rb:50
                                                                                                                  • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:377
                                                                                                            • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#type_cast_for_database -> block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                                              • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                                                • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /usr/local/lib/ruby/2.5.0/delegate.rb:392
                                                                                                                • ActiveRecord::Type::DateTime#type_cast_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/date_time.rb:10
                                                                                                                  • ActiveSupport::TimeWithZone#acts_like? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/acts_like.rb:7
                                                                                                                    • Symbol#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/acts_like.rb:8
                                                                                                                    • ActiveSupport::TimeWithZone#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:367
                                                                                                                      • Symbol#to_sym $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:369
                                                                                                                      • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:370
                                                                                                                  • ActiveRecord::Base.default_timezone $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                                                  • ActiveSupport::TimeWithZone#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:367
                                                                                                                    • Symbol#to_sym $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:369
                                                                                                                    • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:370
                                                                                                                  • ActiveSupport::TimeWithZone#utc $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:59
                                                                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:216
                                                                                                              • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:218
                                                                                                              • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:220
                                                                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:118
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:120
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:120
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:120
                                                                                                                • TrueClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:122
                                                                                                                • FalseClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:123
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:125
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:126
                                                                                                                • Time.=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:15
                                                                                                                  • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:16
                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quoted_date $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:245
                                                                                                                  • Kernel#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:246
                                                                                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quoted_date $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:82
                                                                                                                    • Time#acts_like? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/acts_like.rb:7
                                                                                                                      • Symbol#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/acts_like.rb:8
                                                                                                                      • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/acts_like.rb:8
                                                                                                                    • ActiveRecord::Base.default_timezone $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                                                    • Kernel#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:86
                                                                                                                    • Time#getutc $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:87
                                                                                                                    • Time#to_formatted_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/conversions.rb:48
                                                                                                                      • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/conversions.rb:50
                                                                                                                      • Time#strftime $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/conversions.rb:50
                                                                                                                  • Time#usec $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:247
                                                                                                                  • Kernel#sprintf $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:247
                                                                                                        • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in exec_query $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:277
                                                                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:23
                                                                                                            • Kernel#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:24
                                                                                                            • ActiveRecord::Type::Integer#type_cast_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:20
                                                                                                              • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:8
                                                                                                                • TrueClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:10
                                                                                                                • FalseClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:11
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:12
                                                                                                                • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:97
                                                                                                                  • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:98
                                                                                                                  • ActiveRecord::Type::Integer#cast_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:34
                                                                                                                    • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:39
                                                                                                              • ActiveRecord::Type::Integer#ensure_in_range $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:43
                                                                                                                • Range#cover? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                                                                  • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                                                                  • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:216
                                                                                                              • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:218
                                                                                                              • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:220
                                                                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:118
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:120
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:120
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:120
                                                                                                                • TrueClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:122
                                                                                                                • FalseClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:123
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:125
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:126
                                                                                                                • Time.=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:15
                                                                                                                  • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:16
                                                                                                                  • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:16
                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#types_which_need_no_typecasting $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:96
                                                                                                                • NilClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:127
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:127
                                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#log $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:477
                                                                                                        • Kernel#object_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:482
                                                                                                        • ActiveSupport::Notifications::Instrumenter#instrument $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:17
                                                                                                          • ActiveSupport::Notifications::Instrumenter#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:30
                                                                                                            • ActiveSupport::Notifications::Fanout#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:41
                                                                                                              • ActiveSupport::Notifications::Fanout#listeners_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:53
                                                                                                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                              • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:42
                                                                                                                • ActiveSupport::Notifications::Fanout#block in start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:42
                                                                                                                  • ActiveSupport::Notifications::Fanout::Subscribers::Evented#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:97
                                                                                                                    • ActiveRecord::LogSubscriber#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:78
                                                                                                                      • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                                                                                        • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                                                      • ActiveRecord::LogSubscriber#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:85
                                                                                                                        • #<Class:Time>#now $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:86
                                                                                                                          • Time#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:86
                                                                                                                        • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:86
                                                                                                                          • ActiveSupport::Notifications::Event#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:50
                                                                                                                            • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:52
                                                                                                                              • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:52
                                                                                                                                • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:52
                                                                                                                        • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:105
                                                                                                                          • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                            • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                            • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                          • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:121
                                                                                                                        • Array#last $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:87
                                                                                                                        • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:105
                                                                                                                          • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                            • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                            • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                          • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:121
                                                                                                                        • Array#push $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:90
                                                                                                                • ActiveSupport::Notifications::Fanout#block in start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:42
                                                                                                                  • ActiveSupport::Notifications::Fanout::Subscribers::Evented#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:97
                                                                                                                    • ActiveRecord::ExplainSubscriber#start $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/explain_subscriber.rb:6
                                                                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in log $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:484
                                                                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in exec_query $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:281
                                                                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#without_prepared_statement? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:494
                                                                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter::StatementPool#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:85
                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter::StatementPool#cache $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:103
                                                                                                              • SQLite3::Statement#reset! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:298
                                                                                                              • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:299
                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block (2 levels) in exec_query $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:299
                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block (2 levels) in exec_query $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:299
                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block (2 levels) in exec_query $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:299
                                                                                                              • SQLite3::Statement#bind_params $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:35
                                                                                                                • Array#flatten $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:37
                                                                                                                • Array#each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:37
                                                                                                                  • SQLite3::Statement#block in bind_params $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:37
                                                                                                                    • Module#=== $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:38
                                                                                                                    • SQLite3::Statement#bind_param $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:41
                                                                                                                  • SQLite3::Statement#block in bind_params $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:37
                                                                                                                    • Module#=== $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:38
                                                                                                                    • SQLite3::Statement#bind_param $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:41
                                                                                                                  • SQLite3::Statement#block in bind_params $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:37
                                                                                                                    • Module#=== $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:38
                                                                                                                    • SQLite3::Statement#bind_param $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:41
                                                                                                              • Enumerable#to_a $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:302
                                                                                                                • SQLite3::Statement#each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:106
                                                                                                                  • Kernel#loop $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                                                                                    • SQLite3::Statement#block in each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                                                                                      • SQLite3::Statement#step $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                                                        • SQLite3::Database#encoding $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                                                      • SQLite3::Statement#done? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:109
                                                                                                              • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:302
                                                                                                                • ActiveRecord::Result#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:38
                                                                                                          • ActiveSupport::Notifications::Instrumenter#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:35
                                                                                                            • ActiveSupport::Notifications::Fanout#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:45
                                                                                                              • ActiveSupport::Notifications::Fanout#listeners_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:53
                                                                                                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                              • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:46
                                                                                                                • ActiveSupport::Notifications::Fanout#block in finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:46
                                                                                                                  • ActiveSupport::Notifications::Fanout::Subscribers::Evented#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:101
                                                                                                                    • ActiveRecord::LogSubscriber#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:82
                                                                                                                      • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                                                                                        • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                                                      • ActiveRecord::LogSubscriber#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:93
                                                                                                                        • #<Class:Time>#now $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:94
                                                                                                                          • Time#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:94
                                                                                                                        • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:105
                                                                                                                          • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                            • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                            • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                          • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:121
                                                                                                                        • Array#pop $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:95
                                                                                                                        • Hash#merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:97
                                                                                                                        • String#split $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:99
                                                                                                                        • Array#first $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:99
                                                                                                                        • ActiveRecord::LogSubscriber#sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:37
                                                                                                                          • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:38
                                                                                                                          • ActiveRecord::LogSubscriber.runtime $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:9
                                                                                                                            • ActiveRecord::RuntimeRegistry.sql_runtime $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                              • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                          • ActiveSupport::Notifications::Event#duration $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:60
                                                                                                                            • Time#minus_with_coercion $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:249
                                                                                                                              • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:250
                                                                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:251
                                                                                                                              • Time#minus_with_duration $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:236
                                                                                                                                • ActiveSupport::Duration.=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/duration.rb:93
                                                                                                                                  • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/duration.rb:94
                                                                                                                                • Time#- $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:240
                                                                                                                                  • Integer#fdiv $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:240
                                                                                                                          • ActiveRecord::LogSubscriber.runtime= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:5
                                                                                                                            • ActiveRecord::RuntimeRegistry.sql_runtime= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:19
                                                                                                                              • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                          • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                                                                                            • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                                                          • ActiveSupport::Logger#debug? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:93
                                                                                                                            • ActiveSupport::Logger#level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:28
                                                                                                                              • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:16
                                                                                                                                • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:12
                                                                                                                                  • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                                                                                  • BasicObject#__id__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                                                                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                          • Array#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:43
                                                                                                                          • ActiveSupport::Notifications::Event#duration $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:60
                                                                                                                          • Float#round $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:45
                                                                                                                          • Float#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                            • Float#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                                              • Float#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                                                          • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:50
                                                                                                                            • ActiveRecord::LogSubscriber#block in sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:50
                                                                                                                              • ActiveRecord::LogSubscriber#render_bind $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:23
                                                                                                                                • ActiveRecord::ConnectionAdapters::Column#binary? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/column.rb:18
                                                                                                                                  • ActiveRecord::Type::Integer#binary? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:61
                                                                                                                            • ActiveRecord::LogSubscriber#block in sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:50
                                                                                                                              • ActiveRecord::LogSubscriber#render_bind $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:23
                                                                                                                                • ActiveRecord::ConnectionAdapters::Column#binary? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/column.rb:18
                                                                                                                                  • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#binary? -> block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                                                                    • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                                                                      • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /usr/local/lib/ruby/2.5.0/delegate.rb:392
                                                                                                                                      • ActiveRecord::Type::DateTime#binary? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:61
                                                                                                                            • ActiveRecord::LogSubscriber#block in sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:50
                                                                                                                              • ActiveRecord::LogSubscriber#render_bind $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:23
                                                                                                                                • ActiveRecord::ConnectionAdapters::Column#binary? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/column.rb:18
                                                                                                                                  • ActiveRecord::Type::Integer#binary? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:61
                                                                                                                          • Array#inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:52
                                                                                                                            • Array#inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:52
                                                                                                                              • String#inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:52
                                                                                                                              • Integer#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:52
                                                                                                                            • Array#inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:52
                                                                                                                              • String#inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:52
                                                                                                                              • String#inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:52
                                                                                                                            • Array#inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:52
                                                                                                                              • String#inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:52
                                                                                                                              • Integer#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:52
                                                                                                                          • ActiveRecord::LogSubscriber#odd? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:65
                                                                                                                          • ActiveRecord::LogSubscriber#color $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:102
                                                                                                                            • ActiveRecord::LogSubscriber#colorize_logging $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:67
                                                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:104
                                                                                                                          • ActiveRecord::LogSubscriber#color $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:102
                                                                                                                            • ActiveRecord::LogSubscriber#colorize_logging $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:67
                                                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:104
                                                                                                                            • NilClass#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:106
                                                                                                                          • ActiveRecord::LogSubscriber#debug $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:92
                                                                                                                            • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                                                                                              • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                                                            • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                                                                                              • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                                                            • ActiveSupport::Logger#debug /usr/local/lib/ruby/2.5.0/logger.rb:492
                                                                                                                              • ActiveSupport::Logger#add -> block (2 levels) in broadcast $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:25
                                                                                                                                • ActiveSupport::Logger#block (2 levels) in broadcast $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:25
                                                                                                                                  • ActiveSupport::Logger#add $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:86
                                                                                                                                    • Kernel#nil? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:87
                                                                                                                                    • ActiveSupport::Logger#level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:28
                                                                                                                                      • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:16
                                                                                                                                        • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:12
                                                                                                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                                                                                          • BasicObject#__id__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                    • ActiveSupport::Logger#add /usr/local/lib/ruby/2.5.0/logger.rb:455
                                                                                                                                      • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:457
                                                                                                                                      • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:460
                                                                                                                                      • NilClass#nil? /usr/local/lib/ruby/2.5.0/logger.rb:463
                                                                                                                                      • Kernel#block_given? /usr/local/lib/ruby/2.5.0/logger.rb:464
                                                                                                                                      • ActiveSupport::Logger#format_severity /usr/local/lib/ruby/2.5.0/logger.rb:579
                                                                                                                                      • #<Class:Time>#now /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                                                                                        • Time#initialize /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                                                                                      • ActiveSupport::Logger#format_message /usr/local/lib/ruby/2.5.0/logger.rb:583
                                                                                                                                        • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:102
                                                                                                                                          • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:103
                                                                                                                                      • Logger::LogDevice#write /usr/local/lib/ruby/2.5.0/logger.rb:686
                                                                                                                                        • Logger::LogDevice#mon_synchronize /usr/local/lib/ruby/2.5.0/monitor.rb:223
                                                                                                                                          • Logger::LogDevice#mon_enter /usr/local/lib/ruby/2.5.0/monitor.rb:183
                                                                                                                                            • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:184
                                                                                                                                            • Thread::Mutex#lock /usr/local/lib/ruby/2.5.0/monitor.rb:185
                                                                                                                                            • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:186
                                                                                                                                          • Logger::LogDevice#block in write /usr/local/lib/ruby/2.5.0/logger.rb:688
                                                                                                                                            • IO#write /usr/local/lib/ruby/2.5.0/logger.rb:697
                                                                                                                                          • Logger::LogDevice#mon_exit /usr/local/lib/ruby/2.5.0/monitor.rb:195
                                                                                                                                            • Logger::LogDevice#mon_check_owner /usr/local/lib/ruby/2.5.0/monitor.rb:259
                                                                                                                                              • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:260
                                                                                                                                            • Thread::Mutex#unlock /usr/local/lib/ruby/2.5.0/monitor.rb:200
                                                                                                                                  • ActiveSupport::Logger#add $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:86
                                                                                                                                    • Kernel#nil? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:87
                                                                                                                                    • ActiveSupport::Logger#level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:28
                                                                                                                                      • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:16
                                                                                                                                        • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:12
                                                                                                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                                                                                          • BasicObject#__id__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                    • ActiveSupport::Logger#add /usr/local/lib/ruby/2.5.0/logger.rb:455
                                                                                                                                      • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:457
                                                                                                                                      • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:460
                                                                                                                                      • NilClass#nil? /usr/local/lib/ruby/2.5.0/logger.rb:463
                                                                                                                                      • Kernel#block_given? /usr/local/lib/ruby/2.5.0/logger.rb:464
                                                                                                                                      • ActiveSupport::Logger#format_severity /usr/local/lib/ruby/2.5.0/logger.rb:579
                                                                                                                                      • #<Class:Time>#now /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                                                                                        • Time#initialize /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                                                                                      • ActiveSupport::Logger#format_message /usr/local/lib/ruby/2.5.0/logger.rb:583
                                                                                                                                        • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:20
                                                                                                                                          • ActiveSupport::Logger::SimpleFormatter#tags_text $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:50
                                                                                                                                            • ActiveSupport::Logger::SimpleFormatter#current_tags $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:45
                                                                                                                                              • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:46
                                                                                                                                              • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:46
                                                                                                                                            • Array#any? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:52
                                                                                                                                          • NilClass#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:21
                                                                                                                                          • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:102
                                                                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:103
                                                                                                                                      • Logger::LogDevice#write /usr/local/lib/ruby/2.5.0/logger.rb:686
                                                                                                                                        • Logger::LogDevice#mon_synchronize /usr/local/lib/ruby/2.5.0/monitor.rb:223
                                                                                                                                          • Logger::LogDevice#mon_enter /usr/local/lib/ruby/2.5.0/monitor.rb:183
                                                                                                                                            • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:184
                                                                                                                                            • Thread::Mutex#lock /usr/local/lib/ruby/2.5.0/monitor.rb:185
                                                                                                                                            • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:186
                                                                                                                                          • Logger::LogDevice#block in write /usr/local/lib/ruby/2.5.0/logger.rb:688
                                                                                                                                            • IO#write /usr/local/lib/ruby/2.5.0/logger.rb:697
                                                                                                                                          • Logger::LogDevice#mon_exit /usr/local/lib/ruby/2.5.0/monitor.rb:195
                                                                                                                                            • Logger::LogDevice#mon_check_owner /usr/local/lib/ruby/2.5.0/monitor.rb:259
                                                                                                                                              • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:260
                                                                                                                                            • Thread::Mutex#unlock /usr/local/lib/ruby/2.5.0/monitor.rb:200
                                                                                                                • ActiveSupport::Notifications::Fanout#block in finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:46
                                                                                                                  • ActiveSupport::Notifications::Fanout::Subscribers::Evented#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:101
                                                                                                                    • ActiveRecord::ExplainSubscriber#finish $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/explain_subscriber.rb:10
                                                                                                                      • ActiveRecord::ExplainRegistry.collect? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:50
                                                                                                                        • ActiveRecord::ExplainRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                          • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                        • ActiveRecord::ExplainRegistry#collect? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/explain_registry.rb:21
                                                                                                    • SQLite3::Database#changes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:308
                                                                                • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:506
                                                                                  • ActiveSupport::Callbacks::CallbackSequence#block in call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:506
                                                                                    • ActiveSupport::Callbacks::Filters::After.block in halting_and_conditional $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:222
                                                                                      • ActiveSupport::Callbacks::Filters::Environment#target $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:223
                                                                                      • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:224
                                                                                      • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:225
                                                                                      • Enumerable#all? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:227
                                                                                        • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:227
                                                                                          • ActiveSupport::Callbacks::Filters::After.block (2 levels) in halting_and_conditional $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:227
                                                                                            • ActiveSupport::Callbacks::Conditionals::Value#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:107
                                                                                              • Book.block (2 levels) in _define_after_model_callback $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:141
                                                                                                • BasicObject#!= $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:142
                                                                                                  • Integer#== $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:142
                                                                                                    • BasicObject#== $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:142
                                                                                      • ActiveSupport::Callbacks::Callback#block in make_lambda $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:432
                                                                                        • Book#autosave_associated_records_for_taggings -> block in define_non_cyclic_method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:151
                                                                                          • Book#block in define_non_cyclic_method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:151
                                                                                            • BasicObject#instance_eval $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:157
                                                                                              • Book#block in add_autosave_association_callbacks $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:184
                                                                                                • Book#save_collection_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:353
                                                                                                  • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                                                  • Book#associated_records_to_validate_or_save $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:270
                                                                                                    • Enumerable#find_all $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:276
                                                                                                      • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:276
                                                                                                        • Book#block in associated_records_to_validate_or_save $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:276
                                                                                                          • ActsAsTaggableOn::Tagging#new_record? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:85
                                                                                                            • ActsAsTaggableOn::Tagging#sync_with_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:515
                                                                                                              • ActsAsTaggableOn::Tagging#update_attributes_from_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:519
                                                                                                        • Book#block in associated_records_to_validate_or_save $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:276
                                                                                                          • ActsAsTaggableOn::Tagging#new_record? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:85
                                                                                                            • ActsAsTaggableOn::Tagging#sync_with_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:515
                                                                                                              • ActsAsTaggableOn::Tagging#update_attributes_from_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:519
                                                                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:364
                                                                                                  • Kernel#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:384
                                                                                                  • ActiveRecord::Associations::HasManyAssociation#reset_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:101
                                                                                  • ActiveSupport::Callbacks::CallbackSequence#block in call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:506
                                                                                    • ActiveSupport::Callbacks::Filters::After.block in halting_and_conditional $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:222
                                                                                      • ActiveSupport::Callbacks::Filters::Environment#target $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:223
                                                                                      • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:224
                                                                                      • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:225
                                                                                      • Enumerable#all? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:227
                                                                                        • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:227
                                                                                          • ActiveSupport::Callbacks::Filters::After.block (2 levels) in halting_and_conditional $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:227
                                                                                            • ActiveSupport::Callbacks::Conditionals::Value#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:107
                                                                                              • Book.block (2 levels) in _define_after_model_callback $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:141
                                                                                                • BasicObject#!= $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:142
                                                                                                  • Integer#== $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:142
                                                                                                    • BasicObject#== $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:142
                                                                                      • ActiveSupport::Callbacks::Callback#block in make_lambda $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:432
                                                                                        • Book#autosave_associated_records_for_base_tags -> block in define_non_cyclic_method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:151
                                                                                          • Book#block in define_non_cyclic_method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:151
                                                                                            • BasicObject#instance_eval $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:157
                                                                                              • Book#block in add_autosave_association_callbacks $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:184
                                                                                                • Book#save_collection_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:353
                                                                                                  • ActiveRecord::Reflection::ThroughReflection#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                  • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                                  • ActiveSupport::Callbacks::CallbackSequence#block in call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:506
                                                                                    • ActiveSupport::Callbacks::Filters::After.block in halting_and_conditional $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:222
                                                                                      • ActiveSupport::Callbacks::Filters::Environment#target $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:223
                                                                                      • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:224
                                                                                      • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:225
                                                                                      • Enumerable#all? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:227
                                                                                        • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:227
                                                                                          • ActiveSupport::Callbacks::Filters::After.block (2 levels) in halting_and_conditional $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:227
                                                                                            • ActiveSupport::Callbacks::Conditionals::Value#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:107
                                                                                              • Book.block (2 levels) in _define_after_model_callback $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:141
                                                                                                • BasicObject#!= $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:142
                                                                                                  • Integer#== $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:142
                                                                                                    • BasicObject#== $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:142
                                                                                      • ActiveSupport::Callbacks::Callback#block in make_lambda $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:432
                                                                                        • Book#autosave_associated_records_for_tag_taggings -> block in define_non_cyclic_method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:151
                                                                                          • Book#block in define_non_cyclic_method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:151
                                                                                            • BasicObject#instance_eval $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:157
                                                                                              • Book#block in add_autosave_association_callbacks $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:184
                                                                                                • Book#save_collection_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:353
                                                                                                  • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                                  • ActiveSupport::Callbacks::CallbackSequence#block in call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:506
                                                                                    • ActiveSupport::Callbacks::Filters::After.block in halting_and_conditional $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:222
                                                                                      • ActiveSupport::Callbacks::Filters::Environment#target $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:223
                                                                                      • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:224
                                                                                      • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:225
                                                                                      • Enumerable#all? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:227
                                                                                        • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:227
                                                                                          • ActiveSupport::Callbacks::Filters::After.block (2 levels) in halting_and_conditional $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:227
                                                                                            • ActiveSupport::Callbacks::Conditionals::Value#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:107
                                                                                              • Book.block (2 levels) in _define_after_model_callback $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:141
                                                                                                • BasicObject#!= $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:142
                                                                                                  • Integer#== $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:142
                                                                                                    • BasicObject#== $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:142
                                                                                      • ActiveSupport::Callbacks::Callback#block in make_lambda $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:432
                                                                                        • Book#autosave_associated_records_for_tags -> block in define_non_cyclic_method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:151
                                                                                          • Book#block in define_non_cyclic_method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:151
                                                                                            • BasicObject#instance_eval $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:157
                                                                                              • Book#block in add_autosave_association_callbacks $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:184
                                                                                                • Book#save_collection_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:353
                                                                                                  • ActiveRecord::Reflection::ThroughReflection#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                  • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                              • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:92
                                                                      • BasicObject#!= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:505
                                                                        • Integer#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:505
                                                                          • BasicObject#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:505
                                                              • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:506
                                                                • ActiveSupport::Callbacks::CallbackSequence#block in call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:506
                                                                  • ActiveSupport::Callbacks::Filters::After.block in halting_and_conditional $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:222
                                                                    • ActiveSupport::Callbacks::Filters::Environment#target $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:223
                                                                    • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:224
                                                                    • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:225
                                                                    • Enumerable#all? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:227
                                                                      • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:227
                                                                        • ActiveSupport::Callbacks::Filters::After.block (2 levels) in halting_and_conditional $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:227
                                                                          • ActiveSupport::Callbacks::Conditionals::Value#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:107
                                                                            • Book.block (2 levels) in _define_after_model_callback $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:141
                                                                    • ActiveSupport::Callbacks::Callback#block in make_lambda $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:432
                                                                      • Book#save_tags $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:226
                                                                        • Book#tagging_contexts $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:189
                                                                          • Kernel#class $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:190
                                                                          • Book.tag_types -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                            • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                          • Array#map $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:190
                                                                            • Symbol#to_s $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:190
                                                                          • Book#custom_contexts $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:110
                                                                        • Array#each $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:227
                                                                          • Book#block in save_tags $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:227
                                                                            • Book#tag_list_cache_set_on $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:126
                                                                              • String#to_s $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:127
                                                                              • String#singularize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/string/inflections.rb:54
                                                                                • ActiveSupport::Inflector.singularize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:48
                                                                                  • ActiveSupport::Inflector.inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:203
                                                                                    • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:204
                                                                                    • ActiveSupport::Inflector::Inflections.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:30
                                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                  • ActiveSupport::Inflector.apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:372
                                                                                    • String#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:373
                                                                                    • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:373
                                                                                      • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:373
                                                                                        • String#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:373
                                                                                    • ActiveSupport::Inflector.inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:203
                                                                                      • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:204
                                                                                      • ActiveSupport::Inflector::Inflections.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:30
                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                    • String#downcase $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:375
                                                                                    • String#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:375
                                                                                    • Array#include? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:375
                                                                                    • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                              • Kernel#instance_variable_defined? $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:128
                                                                          • Book#block in save_tags $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:227
                                                                            • Book#tag_list_cache_set_on $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:126
                                                                              • String#to_s $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:127
                                                                              • String#singularize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/string/inflections.rb:54
                                                                                • ActiveSupport::Inflector.singularize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:48
                                                                                  • ActiveSupport::Inflector.inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:203
                                                                                    • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:204
                                                                                    • ActiveSupport::Inflector::Inflections.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:30
                                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                  • ActiveSupport::Inflector.apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:372
                                                                                    • String#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:373
                                                                                    • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:373
                                                                                      • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:373
                                                                                        • String#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:373
                                                                                    • String#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:375
                                                                                    • ActiveSupport::Inflector.inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:203
                                                                                      • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:204
                                                                                      • ActiveSupport::Inflector::Inflections.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:30
                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                    • String#downcase $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:375
                                                                                    • String#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:375
                                                                                    • Array#include? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:375
                                                                                    • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                              • Kernel#instance_variable_defined? $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:128
                                                                • ActiveSupport::Callbacks::CallbackSequence#block in call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:506
                                                                  • ActiveSupport::Callbacks::Filters::After.block in halting_and_conditional $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:222
                                                                    • ActiveSupport::Callbacks::Filters::Environment#target $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:223
                                                                    • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:224
                                                                    • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:225
                                                                    • Enumerable#all? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:227
                                                                      • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:227
                                                                        • ActiveSupport::Callbacks::Filters::After.block (2 levels) in halting_and_conditional $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:227
                                                                          • ActiveSupport::Callbacks::Conditionals::Value#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:107
                                                                            • Book.block (2 levels) in _define_after_model_callback $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:141
                                                                    • ActiveSupport::Callbacks::Callback#block in make_lambda $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:432
                                                                      • Book#save_owned_tags $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/ownership.rb:88
                                                                        • Book#tagging_contexts $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:189
                                                                          • Kernel#class $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:190
                                                                          • Book.tag_types -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                            • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                          • Array#map $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:190
                                                                            • Symbol#to_s $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:190
                                                                          • Book#custom_contexts $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:110
                                                                        • Array#each $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/ownership.rb:89
                                                                          • Book#block in save_owned_tags $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/ownership.rb:89
                                                                            • Book#cached_owned_tag_list_on $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/ownership.rb:59
                                                                              • Kernel#instance_variable_defined? $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/ownership.rb:61
                                                                              • Kernel#instance_variable_get $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/ownership.rb:61
                                                                            • Hash#each $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/ownership.rb:90
                                                                          • Book#block in save_owned_tags $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/ownership.rb:89
                                                                            • Book#cached_owned_tag_list_on $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/ownership.rb:59
                                                                              • Kernel#instance_variable_defined? $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/ownership.rb:61
                                                                              • Kernel#instance_variable_get $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/ownership.rb:61
                                                                            • Hash#each $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/ownership.rb:90
                                                            • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:92
                                                  • Book#changes_applied $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:47
                                                    • Book#changes_applied $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:201
                                                      • Book#changes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:67
                                                        • Book#cache_changed_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:179
                                                          • Book#changed_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:57
                                                            • Book#changed_attributes $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:171
                                                            • Book#attributes_changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:146
                                                              • Book#changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:153
                                                                • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                • Book.attribute_names $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:186
                                                                • Array#select $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                  • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                    • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                      • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                        • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                        • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                      • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                        • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                      • ActiveRecord::Attribute::FromDatabase#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                        • ActiveRecord::Attribute::FromDatabase#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                        • ActiveRecord::Type::Integer#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:79
                                                                  • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                    • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                      • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                        • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                        • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                      • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                        • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                      • ActiveRecord::Attribute::FromDatabase#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                        • ActiveRecord::Attribute::FromDatabase#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                        • ActiveRecord::Type::String#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:8
                                                                          • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:9
                                                                  • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                    • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                      • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                        • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                        • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                      • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                        • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                      • ActiveRecord::Attribute::FromDatabase#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                        • ActiveRecord::Attribute::FromDatabase#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                        • ActiveRecord::Type::Text#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:8
                                                                          • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:9
                                                                  • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                    • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                      • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                        • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                        • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                      • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                        • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                      • ActiveRecord::Attribute::FromUser#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                        • ActiveRecord::Attribute::FromUser#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                        • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                        • ActiveRecord::Type::Integer#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:79
                                                                  • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                    • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                      • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                        • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                        • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                      • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                        • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                      • ActiveRecord::Attribute::FromDatabase#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                        • ActiveRecord::Attribute::FromDatabase#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                        • ActiveRecord::Type::Integer#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:79
                                                                  • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                    • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                      • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                        • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                        • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                      • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                        • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                      • ActiveRecord::Attribute::FromDatabase#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                        • ActiveRecord::Attribute::FromDatabase#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                        • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#changed_in_place? -> block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                          • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                            • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /usr/local/lib/ruby/2.5.0/delegate.rb:392
                                                                            • ActiveRecord::Type::DateTime#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:79
                                                                  • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                    • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                      • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                        • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                        • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                      • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                        • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                      • ActiveRecord::Attribute::FromUser#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                        • ActiveRecord::Attribute::FromUser#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                        • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                        • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#changed_in_place? -> block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                          • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                            • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /usr/local/lib/ruby/2.5.0/delegate.rb:392
                                                                            • ActiveRecord::Type::DateTime#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:79
                                                              • Enumerable#each_with_object $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:147
                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:147
                                                            • ActiveSupport::HashWithIndifferentAccess#reverse_merge $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:208
                                                              • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:209
                                                              • ActiveSupport::HashWithIndifferentAccess.new_from_hash_copying_default $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:75
                                                                • Hash#to_hash $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:76
                                                                • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:77
                                                                  • ActiveSupport::HashWithIndifferentAccess#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:58
                                                                    • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:59
                                                                    • Hash#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:60
                                                                    • ActiveSupport::HashWithIndifferentAccess#update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:127
                                                                      • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:128
                                                                      • Hash#to_hash $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:131
                                                                      • Hash#each_pair $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:131
                                                                • Kernel#tap $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:77
                                                                  • ActiveSupport::HashWithIndifferentAccess.block in new_from_hash_copying_default $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:77
                                                                    • Hash#default $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:78
                                                                    • Hash#default= $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:78
                                                                    • Hash#default_proc $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:79
                                                              • ActiveSupport::HashWithIndifferentAccess#reverse_merge $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/reverse_merge.rb:12
                                                                • ActiveSupport::HashWithIndifferentAccess#merge $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:198
                                                                  • ActiveSupport::HashWithIndifferentAccess#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:189
                                                                    • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:190
                                                                    • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:190
                                                                      • ActiveSupport::HashWithIndifferentAccess#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:58
                                                                        • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:59
                                                                        • Hash#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:60
                                                                        • ActiveSupport::HashWithIndifferentAccess#update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:127
                                                                          • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:128
                                                                          • Hash#update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:129
                                                                    • Kernel#tap $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:190
                                                                      • ActiveSupport::HashWithIndifferentAccess#block in dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:190
                                                                        • ActiveSupport::HashWithIndifferentAccess#set_defaults $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:290
                                                                          • Hash#default_proc $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:291
                                                                          • ActiveSupport::HashWithIndifferentAccess#default $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:67
                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:68
                                                                            • Hash#default $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:71
                                                                          • Hash#default= $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:294
                                                                  • ActiveSupport::HashWithIndifferentAccess#update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:127
                                                                    • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:128
                                                                    • Hash#update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:129
                                                            • Kernel#freeze $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:63
                                                          • Book#block in changes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:68
                                                            • Book#changes $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:151
                                                              • Book#changed $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:141
                                                                • Book#changed_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:57
                                                                • Hash#keys $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:142
                                                              • Array#map $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:152
                                                                • Book#block in changes $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:152
                                                                  • Book#attribute_change $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:222
                                                                    • Book#attribute_changed? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:176
                                                                      • Book#changes_include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:80
                                                                        • Book#changes_include? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:195
                                                                          • Book#changed_attributes $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:171
                                                                          • ActiveSupport::HashWithIndifferentAccess#key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:149
                                                                            • ActiveSupport::HashWithIndifferentAccess#convert_key $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:269
                                                                              • Kernel#kind_of? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:270
                                                                            • Hash#key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:150
                                                                      • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:178
                                                                      • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:179
                                                                    • Book#changed_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:57
                                                                    • Hash#[] $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:223
                                                                    • Book#__temp__97561627 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                      • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                          • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                • Book#block in changes $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:152
                                                                  • Book#attribute_change $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:222
                                                                    • Book#attribute_changed? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:176
                                                                      • Book#changes_include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:80
                                                                        • Book#changes_include? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:195
                                                                          • Book#changed_attributes $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:171
                                                                          • ActiveSupport::HashWithIndifferentAccess#key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:149
                                                                            • ActiveSupport::HashWithIndifferentAccess#convert_key $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:269
                                                                              • Kernel#kind_of? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:270
                                                                            • Hash#key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:150
                                                                      • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:178
                                                                      • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:179
                                                                    • Book#changed_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:57
                                                                    • Hash#[] $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:223
                                                                    • Book#__temp__57074616475646f51647 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                      • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                          • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                              • ActiveSupport::HashWithIndifferentAccess.[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:83
                                                                • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:84
                                                                  • ActiveSupport::HashWithIndifferentAccess#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:58
                                                                    • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:59
                                                                    • Hash#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:60
                                                                    • ActiveSupport::HashWithIndifferentAccess#update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:127
                                                                      • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:128
                                                                      • Hash#to_hash $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:131
                                                                      • Hash#each_pair $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:131
                                                                • #<Class:Hash>#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:84
                                                                • ActiveSupport::HashWithIndifferentAccess#update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:127
                                                                  • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:128
                                                                  • Hash#to_hash $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:131
                                                                  • Hash#each_pair $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:131
                                                                    • ActiveSupport::HashWithIndifferentAccess#block in update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:131
                                                                      • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:132
                                                                      • ActiveSupport::HashWithIndifferentAccess#convert_key $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:269
                                                                        • Kernel#kind_of? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:270
                                                                      • ActiveSupport::HashWithIndifferentAccess#convert_value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:273
                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:274
                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:280
                                                                        • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:282
                                                                          • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:282
                                                                            • Array#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:282
                                                                        • Array#map! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:284
                                                                          • ActiveSupport::HashWithIndifferentAccess#block in convert_value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:284
                                                                            • ActiveSupport::HashWithIndifferentAccess#convert_value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:273
                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:274
                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:280
                                                                          • ActiveSupport::HashWithIndifferentAccess#block in convert_value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:284
                                                                            • ActiveSupport::HashWithIndifferentAccess#convert_value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:273
                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:274
                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:280
                                                                      • ActiveSupport::HashWithIndifferentAccess#[]= $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:135
                                                                    • ActiveSupport::HashWithIndifferentAccess#block in update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:131
                                                                      • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:132
                                                                      • ActiveSupport::HashWithIndifferentAccess#convert_key $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:269
                                                                        • Kernel#kind_of? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:270
                                                                      • ActiveSupport::HashWithIndifferentAccess#convert_value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:273
                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:274
                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:280
                                                                        • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:282
                                                                          • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:282
                                                                            • Array#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:282
                                                                        • Array#map! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:284
                                                                          • ActiveSupport::HashWithIndifferentAccess#block in convert_value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:284
                                                                            • ActiveSupport::HashWithIndifferentAccess#convert_value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:273
                                                                              • ActiveSupport::TimeWithZone#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:346
                                                                                • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:347
                                                                              • ActiveSupport::TimeWithZone#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:346
                                                                                • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:347
                                                                          • ActiveSupport::HashWithIndifferentAccess#block in convert_value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:284
                                                                            • ActiveSupport::HashWithIndifferentAccess#convert_value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:273
                                                                              • ActiveSupport::TimeWithZone#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:346
                                                                                • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:347
                                                                              • ActiveSupport::TimeWithZone#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:346
                                                                                • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:347
                                                                      • ActiveSupport::HashWithIndifferentAccess#[]= $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:135
                                                          • Book#clear_changed_attributes_cache $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:186
                                                            • Kernel#remove_instance_variable $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:187
                                                      • Class#new $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:203
                                                        • ActiveSupport::HashWithIndifferentAccess#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:58
                                                          • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:59
                                                          • Hash#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:60
                                                          • ActiveSupport::HashWithIndifferentAccess#update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:127
                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:128
                                                            • Hash#to_hash $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:131
                                                            • Hash#each_pair $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:131
                                                    • Book#store_original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:173
                                                      • Book#attribute_names $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:271
                                                        • ActiveRecord::AttributeSet#keys $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:26
                                                          • ActiveRecord::LazyAttributeHash#initialized_keys $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:50
                                                            • Hash#keys $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:51
                                                            • Hash#keys $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:51
                                                            • Array#| $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:51
                                                      • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:174
                                                        • Book#block in store_original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:174
                                                          • Book#store_original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:169
                                                            • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                            • ActiveRecord::Attribute::FromDatabase#value_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:45
                                                              • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                              • ActiveRecord::Type::Integer#type_cast_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:20
                                                                • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:8
                                                                  • TrueClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:10
                                                                  • FalseClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:11
                                                                  • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:12
                                                                  • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:97
                                                                    • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:98
                                                                    • ActiveRecord::Type::Integer#cast_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:34
                                                                      • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:39
                                                                • ActiveRecord::Type::Integer#ensure_in_range $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:43
                                                                  • Range#cover? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                    • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                    • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                        • Book#block in store_original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:174
                                                          • Book#store_original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:169
                                                            • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                            • ActiveRecord::Attribute::FromDatabase#value_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:45
                                                              • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                              • ActiveRecord::Type::String#type_cast_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:14
                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:16
                                                                • ActiveSupport::Duration.=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/duration.rb:93
                                                                  • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/duration.rb:94
                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:17
                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:17
                                                                  • String#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:17
                                                        • Book#block in store_original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:174
                                                          • Book#store_original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:169
                                                            • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                            • ActiveRecord::Attribute::FromDatabase#value_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:45
                                                              • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                              • ActiveRecord::Type::Text#type_cast_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:14
                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:16
                                                                • ActiveSupport::Duration.=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/duration.rb:93
                                                                  • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/duration.rb:94
                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:17
                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:17
                                                                  • String#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:17
                                                        • Book#block in store_original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:174
                                                          • Book#store_original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:169
                                                            • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                            • ActiveRecord::Attribute::FromUser#value_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:45
                                                              • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                              • ActiveRecord::Type::Integer#type_cast_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:20
                                                                • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:8
                                                                  • TrueClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:10
                                                                  • FalseClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:11
                                                                  • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:12
                                                                  • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:97
                                                                    • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:98
                                                                    • ActiveRecord::Type::Integer#cast_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:34
                                                                      • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:39
                                                                • ActiveRecord::Type::Integer#ensure_in_range $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:43
                                                                  • Range#cover? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                    • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                    • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                        • Book#block in store_original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:174
                                                          • Book#store_original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:169
                                                            • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                            • ActiveRecord::Attribute::FromDatabase#value_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:45
                                                              • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                              • ActiveRecord::Type::Integer#type_cast_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:20
                                                                • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:8
                                                                  • TrueClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:10
                                                                  • FalseClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:11
                                                                  • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:12
                                                                  • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:97
                                                                    • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:98
                                                                    • ActiveRecord::Type::Integer#cast_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:34
                                                                      • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:39
                                                                • ActiveRecord::Type::Integer#ensure_in_range $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:43
                                                                  • Range#cover? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                    • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                    • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                        • Book#block in store_original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:174
                                                          • Book#store_original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:169
                                                            • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                            • ActiveRecord::Attribute::FromDatabase#value_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:45
                                                              • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                              • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#type_cast_for_database -> block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                  • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /usr/local/lib/ruby/2.5.0/delegate.rb:392
                                                                  • ActiveRecord::Type::DateTime#type_cast_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/date_time.rb:10
                                                                    • ActiveSupport::TimeWithZone#acts_like? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/acts_like.rb:7
                                                                      • Symbol#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/acts_like.rb:8
                                                                      • ActiveSupport::TimeWithZone#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:367
                                                                        • Symbol#to_sym $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:369
                                                                        • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:370
                                                                    • ActiveRecord::Base.default_timezone $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                    • ActiveSupport::TimeWithZone#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:367
                                                                      • Symbol#to_sym $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:369
                                                                      • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:370
                                                                    • ActiveSupport::TimeWithZone#utc $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:59
                                                        • Book#block in store_original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:174
                                                          • Book#store_original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:169
                                                            • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                            • ActiveRecord::Attribute::FromUser#value_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:45
                                                              • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                              • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#type_cast_for_database -> block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                  • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /usr/local/lib/ruby/2.5.0/delegate.rb:392
                                                                  • ActiveRecord::Type::DateTime#type_cast_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/date_time.rb:10
                                                                    • ActiveSupport::TimeWithZone#acts_like? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/acts_like.rb:7
                                                                      • Symbol#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/acts_like.rb:8
                                                                      • ActiveSupport::TimeWithZone#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:367
                                                                        • Symbol#to_sym $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:369
                                                                        • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:370
                                                                    • ActiveRecord::Base.default_timezone $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                    • ActiveSupport::TimeWithZone#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:367
                                                                      • Symbol#to_sym $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:369
                                                                      • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:370
                                                                    • ActiveSupport::TimeWithZone#utc $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:59
                                    • Book#clear_transaction_record_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:380
                                      • Hash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:381
                                      • Hash#[]= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:381
                                      • Hash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:382
                          • #<Class:Thread>#current $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:190
                          • Thread#status $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:190
                          • ActiveRecord::ConnectionAdapters::TransactionManager#commit_transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:174
                            • Array#pop $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:175
                            • ActiveRecord::ConnectionAdapters::RealTransaction#commit $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:150
                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#commit_db_transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:344
                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#log $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:477
                                  • Kernel#object_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:482
                                  • ActiveSupport::Notifications::Instrumenter#instrument $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:17
                                    • ActiveSupport::Notifications::Instrumenter#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:30
                                      • ActiveSupport::Notifications::Fanout#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:41
                                        • ActiveSupport::Notifications::Fanout#listeners_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:53
                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                        • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:42
                                          • ActiveSupport::Notifications::Fanout#block in start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:42
                                            • ActiveSupport::Notifications::Fanout::Subscribers::Evented#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:97
                                              • ActiveRecord::LogSubscriber#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:78
                                                • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                  • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                • ActiveRecord::LogSubscriber#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:85
                                                  • #<Class:Time>#now $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:86
                                                    • Time#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:86
                                                  • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:86
                                                    • ActiveSupport::Notifications::Event#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:50
                                                      • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:52
                                                        • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:52
                                                          • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:52
                                                  • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:105
                                                    • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                      • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                      • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                    • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:121
                                                  • Array#last $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:87
                                                  • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:105
                                                    • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                      • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                      • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                    • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:121
                                                  • Array#push $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:90
                                          • ActiveSupport::Notifications::Fanout#block in start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:42
                                            • ActiveSupport::Notifications::Fanout::Subscribers::Evented#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:97
                                              • ActiveRecord::ExplainSubscriber#start $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/explain_subscriber.rb:6
                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in log $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:484
                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in commit_db_transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:345
                                        • SQLite3::Database#commit $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:517
                                          • SQLite3::Database#execute $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:122
                                            • Kernel#nil? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:123
                                            • SQLite3::Database#prepare $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:90
                                              • Class#new $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:91
                                                • SQLite3::Statement#initialize $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:91
                                              • Kernel#block_given? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:92
                                              • SQLite3::Database#block in execute $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:137
                                                • SQLite3::Statement#bind_params $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:35
                                                  • Array#flatten $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:37
                                                  • Array#each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:37
                                                • SQLite3::Statement#columns $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:101
                                                  • SQLite3::Statement#get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:135
                                                    • SQLite3::Statement#column_count $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                    • Class#new $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                      • Array#initialize $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                    • SQLite3::Statement#column_count $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                    • Class#new $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                      • Array#initialize $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                • Kernel#block_given? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:142
                                                • Enumerable#map $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:152
                                                  • SQLite3::Statement#each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:106
                                                    • Kernel#loop $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                      • SQLite3::Statement#block in each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                        • SQLite3::Statement#step $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                          • SQLite3::Database#encoding $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                        • SQLite3::Statement#done? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:109
                                              • SQLite3::Statement#closed? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:97
                                              • SQLite3::Statement#close $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:97
                                    • ActiveSupport::Notifications::Instrumenter#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:35
                                      • ActiveSupport::Notifications::Fanout#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:45
                                        • ActiveSupport::Notifications::Fanout#listeners_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:53
                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                        • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:46
                                          • ActiveSupport::Notifications::Fanout#block in finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:46
                                            • ActiveSupport::Notifications::Fanout::Subscribers::Evented#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:101
                                              • ActiveRecord::LogSubscriber#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:82
                                                • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                  • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                • ActiveRecord::LogSubscriber#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:93
                                                  • #<Class:Time>#now $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:94
                                                    • Time#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:94
                                                  • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:105
                                                    • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                      • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                      • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                    • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:121
                                                  • Array#pop $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:95
                                                  • Hash#merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:97
                                                  • String#split $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:99
                                                  • Array#first $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:99
                                                  • ActiveRecord::LogSubscriber#sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:37
                                                    • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:38
                                                    • ActiveRecord::LogSubscriber.runtime $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:9
                                                      • ActiveRecord::RuntimeRegistry.sql_runtime $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                        • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                          • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                    • ActiveSupport::Notifications::Event#duration $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:60
                                                      • Time#minus_with_coercion $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:249
                                                        • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:250
                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:251
                                                        • Time#minus_with_duration $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:236
                                                          • ActiveSupport::Duration.=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/duration.rb:93
                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/duration.rb:94
                                                          • Time#- $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:240
                                                            • Integer#fdiv $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:240
                                                    • ActiveRecord::LogSubscriber.runtime= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:5
                                                      • ActiveRecord::RuntimeRegistry.sql_runtime= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:19
                                                        • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                          • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                    • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                      • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                    • ActiveSupport::Logger#debug? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:93
                                                      • ActiveSupport::Logger#level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:28
                                                        • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:16
                                                          • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:12
                                                            • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                            • BasicObject#__id__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                    • Array#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:43
                                                    • NilClass#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:45
                                                    • ActiveSupport::Notifications::Event#duration $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:60
                                                    • Float#round $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:45
                                                    • Float#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                      • Float#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                        • Float#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                    • ActiveRecord::LogSubscriber#odd? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:65
                                                    • ActiveRecord::LogSubscriber#color $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:102
                                                      • ActiveRecord::LogSubscriber#colorize_logging $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:67
                                                      • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:104
                                                    • NilClass#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:62
                                                    • ActiveRecord::LogSubscriber#debug $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:92
                                                      • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                        • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                      • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                        • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                      • ActiveSupport::Logger#debug /usr/local/lib/ruby/2.5.0/logger.rb:492
                                                        • ActiveSupport::Logger#add -> block (2 levels) in broadcast $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:25
                                                          • ActiveSupport::Logger#block (2 levels) in broadcast $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:25
                                                            • ActiveSupport::Logger#add $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:86
                                                              • Kernel#nil? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:87
                                                              • ActiveSupport::Logger#level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:28
                                                                • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:16
                                                                  • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:12
                                                                    • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                    • BasicObject#__id__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                              • ActiveSupport::Logger#add /usr/local/lib/ruby/2.5.0/logger.rb:455
                                                                • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:457
                                                                • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:460
                                                                • NilClass#nil? /usr/local/lib/ruby/2.5.0/logger.rb:463
                                                                • Kernel#block_given? /usr/local/lib/ruby/2.5.0/logger.rb:464
                                                                • ActiveSupport::Logger#format_severity /usr/local/lib/ruby/2.5.0/logger.rb:579
                                                                • #<Class:Time>#now /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                  • Time#initialize /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                • ActiveSupport::Logger#format_message /usr/local/lib/ruby/2.5.0/logger.rb:583
                                                                  • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:102
                                                                    • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:103
                                                                • Logger::LogDevice#write /usr/local/lib/ruby/2.5.0/logger.rb:686
                                                                  • Logger::LogDevice#mon_synchronize /usr/local/lib/ruby/2.5.0/monitor.rb:223
                                                                    • Logger::LogDevice#mon_enter /usr/local/lib/ruby/2.5.0/monitor.rb:183
                                                                      • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:184
                                                                      • Thread::Mutex#lock /usr/local/lib/ruby/2.5.0/monitor.rb:185
                                                                      • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:186
                                                                    • Logger::LogDevice#block in write /usr/local/lib/ruby/2.5.0/logger.rb:688
                                                                      • IO#write /usr/local/lib/ruby/2.5.0/logger.rb:697
                                                                    • Logger::LogDevice#mon_exit /usr/local/lib/ruby/2.5.0/monitor.rb:195
                                                                      • Logger::LogDevice#mon_check_owner /usr/local/lib/ruby/2.5.0/monitor.rb:259
                                                                        • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:260
                                                                      • Thread::Mutex#unlock /usr/local/lib/ruby/2.5.0/monitor.rb:200
                                                            • ActiveSupport::Logger#add $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:86
                                                              • Kernel#nil? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:87
                                                              • ActiveSupport::Logger#level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:28
                                                                • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:16
                                                                  • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:12
                                                                    • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                    • BasicObject#__id__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                              • ActiveSupport::Logger#add /usr/local/lib/ruby/2.5.0/logger.rb:455
                                                                • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:457
                                                                • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:460
                                                                • NilClass#nil? /usr/local/lib/ruby/2.5.0/logger.rb:463
                                                                • Kernel#block_given? /usr/local/lib/ruby/2.5.0/logger.rb:464
                                                                • ActiveSupport::Logger#format_severity /usr/local/lib/ruby/2.5.0/logger.rb:579
                                                                • #<Class:Time>#now /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                  • Time#initialize /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                • ActiveSupport::Logger#format_message /usr/local/lib/ruby/2.5.0/logger.rb:583
                                                                  • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:20
                                                                    • ActiveSupport::Logger::SimpleFormatter#tags_text $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:50
                                                                      • ActiveSupport::Logger::SimpleFormatter#current_tags $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:45
                                                                        • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:46
                                                                        • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:46
                                                                      • Array#any? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:52
                                                                    • NilClass#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:21
                                                                    • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:102
                                                                      • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:103
                                                                • Logger::LogDevice#write /usr/local/lib/ruby/2.5.0/logger.rb:686
                                                                  • Logger::LogDevice#mon_synchronize /usr/local/lib/ruby/2.5.0/monitor.rb:223
                                                                    • Logger::LogDevice#mon_enter /usr/local/lib/ruby/2.5.0/monitor.rb:183
                                                                      • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:184
                                                                      • Thread::Mutex#lock /usr/local/lib/ruby/2.5.0/monitor.rb:185
                                                                      • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:186
                                                                    • Logger::LogDevice#block in write /usr/local/lib/ruby/2.5.0/logger.rb:688
                                                                      • IO#write /usr/local/lib/ruby/2.5.0/logger.rb:697
                                                                    • Logger::LogDevice#mon_exit /usr/local/lib/ruby/2.5.0/monitor.rb:195
                                                                      • Logger::LogDevice#mon_check_owner /usr/local/lib/ruby/2.5.0/monitor.rb:259
                                                                        • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:260
                                                                      • Thread::Mutex#unlock /usr/local/lib/ruby/2.5.0/monitor.rb:200
                                          • ActiveSupport::Notifications::Fanout#block in finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:46
                                            • ActiveSupport::Notifications::Fanout::Subscribers::Evented#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:101
                                              • ActiveRecord::ExplainSubscriber#finish $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/explain_subscriber.rb:10
                                                • ActiveRecord::ExplainRegistry.collect? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:50
                                                  • ActiveRecord::ExplainRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                    • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                    • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                  • ActiveRecord::ExplainRegistry#collect? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/explain_registry.rb:21
                              • ActiveRecord::ConnectionAdapters::RealTransaction#commit $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:81
                                • ActiveRecord::ConnectionAdapters::TransactionState#set_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:29
                                  • Set#include? /usr/local/lib/ruby/2.5.0/set.rb:253
                              • ActiveRecord::ConnectionAdapters::RealTransaction#commit_records $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:85
                                • Array#uniq $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:86
                                  • Book#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:398
                                    • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                      • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                    • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                      • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                    • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:400
                                  • Book#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:398
                                    • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                      • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                    • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                      • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                    • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:400
                                • Array#shift $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:87
                                • Book#committed! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:313
                                  • Book#destroyed? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:91
                                    • Book#sync_with_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:515
                                      • Book#update_attributes_from_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:519
                                  • Book#persisted? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:98
                                    • Book#new_record? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:85
                                      • Book#sync_with_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:515
                                        • Book#update_attributes_from_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:519
                                    • Book#destroyed? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:91
                                      • Book#sync_with_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:515
                                        • Book#update_attributes_from_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:519
                                  • Book#_run_commit_callbacks $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:777
                                    • Book#_commit_callbacks -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                      • Book#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                        • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                        • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                        • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                          • Book._commit_callbacks -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                            • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                    • Book#__run_callbacks__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:86
                                      • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:529
                                      • ActiveSupport::Callbacks::CallbackChain#compile $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:553
                                      • #<Class:ActiveSupport::Callbacks::Filters::Environment>#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:91
                                        • Struct#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:91
                                      • ActiveSupport::Callbacks::CallbackSequence#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:503
                                        • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:504
                                        • ActiveSupport::Callbacks::CallbackChain#block (2 levels) in compile $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:555
                                          • ActiveSupport::Callbacks::Filters::End#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:115
                                            • ActiveSupport::Callbacks::Filters::Environment#run_block $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:116
                                            • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:117
                                        • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:506
                                          • ActiveSupport::Callbacks::CallbackSequence#block in call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:506
                                            • ActiveSupport::Callbacks::Filters::After.block in simple $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:262
                                              • ActiveSupport::Callbacks::Filters::Environment#target $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:263
                                              • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:263
                                              • ActiveSupport::Callbacks::Callback#block in make_lambda $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:446
                                                • BasicObject#instance_exec $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:446
                                                  • Book#block in update_proc $GemPath0/gems/chewy-5.1.0/lib/chewy/type/observe.rb:11
                                                    • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/type/observe.rb:12
                                                    • Chewy.derive_type $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:97
                                                      • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:98
                                                      • Chewy.derive_types $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:115
                                                        • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:116
                                                        • String#split $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:118
                                                        • String#camelize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/string/inflections.rb:89
                                                          • ActiveSupport::Inflector.camelize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:68
                                                            • String#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:69
                                                            • String#sub $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:71
                                                              • ActiveSupport::Inflector.block in camelize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:71
                                                                • ActiveSupport::Inflector.inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:203
                                                                  • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:204
                                                                  • ActiveSupport::Inflector::Inflections.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:30
                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                • String#capitalize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:71
                                                            • String#gsub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:75
                                                            • String#gsub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:76
                                                        • String#gsub $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:119
                                                        • String#safe_constantize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/string/inflections.rb:76
                                                          • ActiveSupport::Inflector.safe_constantize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:303
                                                            • ActiveSupport::Inflector.constantize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:250
                                                              • String#split $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:251
                                                              • Enumerable#inject $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:259
                                                                • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:259
                                                                  • ActiveSupport::Inflector.block in constantize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:259
                                                                    • Module#const_get $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:261
                                                        • Module#< $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:121
                                                        • String#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                          • String#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:116
                                                            • Regexp#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:117
                                                        • EntertainmentIndex.type_hash -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                          • EntertainmentIndex.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                      • Enumerable#one? $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:101
                                                        • Array#each $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:101
                                                      • Array#first $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:102
                                                    • Chewy.strategy $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:197
                                                      • #<Class:Thread>#current $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:198
                                                      • Thread#[] $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:198
                                                      • #<Class:Thread>#current $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:206
                                                      • Thread#[] $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:206
                                                    • Chewy::Strategy#current $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:51
                                                      • Array#last $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:52
                                                    • Chewy::Strategy::Atomic#name $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy/base.rb:11
                                                      • Kernel#class $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy/base.rb:12
                                                      • Module#name $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy/base.rb:12
                                                      • String#demodulize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/string/inflections.rb:137
                                                        • ActiveSupport::Inflector.demodulize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:199
                                                          • String#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:200
                                                          • String#rindex $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:201
                                                          • String#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:202
                                                      • String#underscore $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/string/inflections.rb:118
                                                        • ActiveSupport::Inflector.underscore $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:91
                                                          • String#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:93
                                                          • String#gsub $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:93
                                                          • ActiveSupport::Inflector.inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:203
                                                            • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:204
                                                            • ActiveSupport::Inflector::Inflections.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:30
                                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                          • Regexp#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:94
                                                          • String#gsub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:94
                                                          • String#gsub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:95
                                                          • String#gsub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:96
                                                          • String#tr! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:97
                                                          • String#downcase! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:98
                                                      • String#to_sym $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy/base.rb:12
                                                    • Symbol#to_s $GemPath0/gems/chewy-5.1.0/lib/chewy/type/observe.rb:26
                                                    • EntertainmentIndex::Book.update_index $GemPath0/gems/chewy-5.1.0/lib/chewy/type/observe.rb:75
                                                      • Chewy.strategy $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:197
                                                        • #<Class:Thread>#current $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:198
                                                        • Thread#[] $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:198
                                                        • #<Class:Thread>#current $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:206
                                                        • Thread#[] $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:206
                                                      • Chewy::Strategy#current $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:51
                                                        • Array#last $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:52
                                                      • Chewy::Strategy::Atomic#update $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy/atomic.rb:19
                                                        • Kernel#hash $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy/atomic.rb:20
                                                        • Kernel#hash $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy/atomic.rb:21
                                                        • EntertainmentIndex::Book.root $GemPath0/gems/chewy-5.1.0/lib/chewy/type/mapping.rb:37
                                                          • EntertainmentIndex::Book.root_object -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                            • EntertainmentIndex::Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                          • EntertainmentIndex::Book.root_object -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                            • EntertainmentIndex::Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                          • Chewy::Fields::Root#update_options! $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:16
                                                            • Hash#fetch $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:17
                                                            • Hash#fetch $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:17
                                                            • Hash#fetch $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:18
                                                            • Hash#fetch $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:18
                                                            • Hash#fetch $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:19
                                                            • Hash#except $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:9
                                                              • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:10
                                                                • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:10
                                                                  • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:10
                                                              • Hash#except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:17
                                                                • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                  • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                    • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                  • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                    • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                  • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                    • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                  • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                    • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                  • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                    • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                  • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                    • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                            • Hash#merge! $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:20
                                                          • Kernel#block_given? $GemPath0/gems/chewy-5.1.0/lib/chewy/type/mapping.rb:40
                                                          • EntertainmentIndex::Book.root_object -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                            • EntertainmentIndex::Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                        • EntertainmentIndex::Book.adapter -> block in create_type $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:139
                                                          • EntertainmentIndex::Book.block in create_type $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:139
                                                        • Chewy::Type::Adapter::ActiveRecord#identify $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:25
                                                          • Chewy::Type::Adapter::ActiveRecord#relation_class $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/active_record.rb:88
                                                          • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:26
                                                          • Array.wrap $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:36
                                                            • Kernel#nil? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:37
                                                            • Book#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:235
                                                              • Book#respond_to? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:449
                                                                • Kernel#respond_to? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:450
                                                                • Kernel#respond_to? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:452
                                                          • Array#map $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:29
                                                            • Chewy::Type::Adapter::ActiveRecord#block in identify $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:29
                                                              • Chewy::Type::Adapter::ActiveRecord#primary_key $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/active_record.rb:36
                                                              • Book#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:235
                                                                • Book#respond_to? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:449
                                                                  • Kernel#respond_to? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:450
                                                                • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:237
                                                                • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:243
                                                                • Book.column_names $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:259
                                                                • Array#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:243
                                                                • Book#has_attribute? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:259
                                                                  • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:260
                                                                  • ActiveRecord::AttributeSet#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:22
                                                                    • ActiveRecord::LazyAttributeHash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:35
                                                                      • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:36
                                                                    • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                      • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                    • ActiveRecord::Attribute::FromDatabase#initialized? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:73
                                                              • Chewy::Type::Adapter::ActiveRecord#primary_key $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/active_record.rb:36
                                                              • Kernel#public_send $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:30
                                                                • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                  • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                    • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                    • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                      • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                        • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                      • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                        • Array#| $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy/atomic.rb:21
                                                        • Kernel#hash $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy/atomic.rb:21
                                      • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:92
                                  • Book#force_clear_transaction_record_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:386
                                    • Hash#clear $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:387
                                • Array#shift $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:87
                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:96
              • Object#block (3 levels) in __pry__ (pry):6
                • Book#update $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:247
                  • Book#with_transaction_returning_status $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:346
                    • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:348
                    • Book.transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:218
                      • Book.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                        • Book.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                          • Book.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                            • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                              • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                            • Book.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                              • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                          • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                            • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                              • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                              • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                            • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                              • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                  • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                    • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                      • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                      • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:204
                        • Hash#assert_valid_keys $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:71
                          • Array#flatten! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:72
                          • Hash#each_key $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:73
                        • ActiveRecord::ConnectionAdapters::SQLite3Adapter#current_transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:221
                          • ActiveRecord::ConnectionAdapters::TransactionManager#current_transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:207
                            • Array#last $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:208
                        • ActiveRecord::ConnectionAdapters::NullTransaction#joinable? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:41
                        • ActiveRecord::ConnectionAdapters::TransactionManager#within_new_transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:182
                          • ActiveRecord::ConnectionAdapters::TransactionManager#begin_transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:163
                            • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:166
                              • ActiveRecord::ConnectionAdapters::RealTransaction#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:135
                                • ActiveRecord::ConnectionAdapters::RealTransaction#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:50
                                  • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:52
                                    • ActiveRecord::ConnectionAdapters::TransactionState#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:8
                                  • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:54
                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#begin_db_transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:340
                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#log $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:477
                                    • Kernel#object_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:482
                                    • ActiveSupport::Notifications::Instrumenter#instrument $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:17
                                      • ActiveSupport::Notifications::Instrumenter#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:30
                                        • ActiveSupport::Notifications::Fanout#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:41
                                          • ActiveSupport::Notifications::Fanout#listeners_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:53
                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                          • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:42
                                            • ActiveSupport::Notifications::Fanout#block in start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:42
                                              • ActiveSupport::Notifications::Fanout::Subscribers::Evented#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:97
                                                • ActiveRecord::LogSubscriber#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:78
                                                  • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                    • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                  • ActiveRecord::LogSubscriber#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:85
                                                    • #<Class:Time>#now $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:86
                                                      • Time#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:86
                                                    • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:86
                                                      • ActiveSupport::Notifications::Event#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:50
                                                        • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:52
                                                          • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:52
                                                            • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:52
                                                    • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:105
                                                      • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                        • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                        • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                      • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:121
                                                    • Array#last $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:87
                                                    • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:105
                                                      • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                        • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                        • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                      • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:121
                                                    • Array#push $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:90
                                            • ActiveSupport::Notifications::Fanout#block in start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:42
                                              • ActiveSupport::Notifications::Fanout::Subscribers::Evented#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:97
                                                • ActiveRecord::ExplainSubscriber#start $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/explain_subscriber.rb:6
                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in log $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:484
                                        • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in begin_db_transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:341
                                          • SQLite3::Database#transaction $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:495
                                            • Symbol#to_s $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:496
                                            • SQLite3::Database#execute $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:122
                                              • Kernel#nil? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:123
                                              • SQLite3::Database#prepare $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:90
                                                • Class#new $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:91
                                                  • SQLite3::Statement#initialize $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:91
                                                • Kernel#block_given? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:92
                                                • SQLite3::Database#block in execute $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:137
                                                  • SQLite3::Statement#bind_params $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:35
                                                    • Array#flatten $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:37
                                                    • Array#each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:37
                                                  • SQLite3::Statement#columns $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:101
                                                    • SQLite3::Statement#get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:135
                                                      • SQLite3::Statement#column_count $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                      • Class#new $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                        • Array#initialize $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                      • SQLite3::Statement#column_count $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                      • Class#new $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                        • Array#initialize $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                  • Kernel#block_given? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:142
                                                  • Enumerable#map $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:152
                                                    • SQLite3::Statement#each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:106
                                                      • Kernel#loop $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                        • SQLite3::Statement#block in each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                          • SQLite3::Statement#step $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                            • SQLite3::Database#encoding $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                          • SQLite3::Statement#done? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:109
                                                • SQLite3::Statement#closed? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:97
                                                • SQLite3::Statement#close $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:97
                                            • Kernel#block_given? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:498
                                      • ActiveSupport::Notifications::Instrumenter#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:35
                                        • ActiveSupport::Notifications::Fanout#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:45
                                          • ActiveSupport::Notifications::Fanout#listeners_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:53
                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                          • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:46
                                            • ActiveSupport::Notifications::Fanout#block in finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:46
                                              • ActiveSupport::Notifications::Fanout::Subscribers::Evented#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:101
                                                • ActiveRecord::LogSubscriber#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:82
                                                  • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                    • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                  • ActiveRecord::LogSubscriber#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:93
                                                    • #<Class:Time>#now $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:94
                                                      • Time#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:94
                                                    • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:105
                                                      • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                        • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                        • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                      • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:121
                                                    • Array#pop $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:95
                                                    • Hash#merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:97
                                                    • String#split $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:99
                                                    • Array#first $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:99
                                                    • ActiveRecord::LogSubscriber#sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:37
                                                      • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:38
                                                      • ActiveRecord::LogSubscriber.runtime $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:9
                                                        • ActiveRecord::RuntimeRegistry.sql_runtime $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                          • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                            • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                            • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                      • ActiveSupport::Notifications::Event#duration $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:60
                                                        • Time#minus_with_coercion $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:249
                                                          • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:250
                                                          • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:251
                                                          • Time#minus_with_duration $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:236
                                                            • ActiveSupport::Duration.=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/duration.rb:93
                                                              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/duration.rb:94
                                                            • Time#- $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:240
                                                              • Integer#fdiv $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:240
                                                      • ActiveRecord::LogSubscriber.runtime= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:5
                                                        • ActiveRecord::RuntimeRegistry.sql_runtime= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:19
                                                          • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                            • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                            • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                      • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                        • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                      • ActiveSupport::Logger#debug? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:93
                                                        • ActiveSupport::Logger#level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:28
                                                          • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:16
                                                            • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:12
                                                              • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                              • BasicObject#__id__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                      • Array#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:43
                                                      • NilClass#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:45
                                                      • ActiveSupport::Notifications::Event#duration $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:60
                                                      • Float#round $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:45
                                                      • Float#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                        • Float#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                          • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                          • Float#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                      • ActiveRecord::LogSubscriber#odd? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:65
                                                      • ActiveRecord::LogSubscriber#color $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:102
                                                        • ActiveRecord::LogSubscriber#colorize_logging $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:67
                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:104
                                                      • ActiveRecord::LogSubscriber#color $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:102
                                                        • ActiveRecord::LogSubscriber#colorize_logging $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:67
                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:104
                                                        • NilClass#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:106
                                                      • NilClass#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:62
                                                      • ActiveRecord::LogSubscriber#debug $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:92
                                                        • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                          • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                        • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                          • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                        • ActiveSupport::Logger#debug /usr/local/lib/ruby/2.5.0/logger.rb:492
                                                          • ActiveSupport::Logger#add -> block (2 levels) in broadcast $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:25
                                                            • ActiveSupport::Logger#block (2 levels) in broadcast $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:25
                                                              • ActiveSupport::Logger#add $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:86
                                                                • Kernel#nil? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:87
                                                                • ActiveSupport::Logger#level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:28
                                                                  • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:16
                                                                    • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:12
                                                                      • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                      • BasicObject#__id__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                • ActiveSupport::Logger#add /usr/local/lib/ruby/2.5.0/logger.rb:455
                                                                  • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:457
                                                                  • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:460
                                                                  • NilClass#nil? /usr/local/lib/ruby/2.5.0/logger.rb:463
                                                                  • Kernel#block_given? /usr/local/lib/ruby/2.5.0/logger.rb:464
                                                                  • ActiveSupport::Logger#format_severity /usr/local/lib/ruby/2.5.0/logger.rb:579
                                                                  • #<Class:Time>#now /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                    • Time#initialize /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                  • ActiveSupport::Logger#format_message /usr/local/lib/ruby/2.5.0/logger.rb:583
                                                                    • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:102
                                                                      • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:103
                                                                  • Logger::LogDevice#write /usr/local/lib/ruby/2.5.0/logger.rb:686
                                                                    • Logger::LogDevice#mon_synchronize /usr/local/lib/ruby/2.5.0/monitor.rb:223
                                                                      • Logger::LogDevice#mon_enter /usr/local/lib/ruby/2.5.0/monitor.rb:183
                                                                        • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:184
                                                                        • Thread::Mutex#lock /usr/local/lib/ruby/2.5.0/monitor.rb:185
                                                                        • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:186
                                                                      • Logger::LogDevice#block in write /usr/local/lib/ruby/2.5.0/logger.rb:688
                                                                        • IO#write /usr/local/lib/ruby/2.5.0/logger.rb:697
                                                                      • Logger::LogDevice#mon_exit /usr/local/lib/ruby/2.5.0/monitor.rb:195
                                                                        • Logger::LogDevice#mon_check_owner /usr/local/lib/ruby/2.5.0/monitor.rb:259
                                                                          • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:260
                                                                        • Thread::Mutex#unlock /usr/local/lib/ruby/2.5.0/monitor.rb:200
                                                              • ActiveSupport::Logger#add $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:86
                                                                • Kernel#nil? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:87
                                                                • ActiveSupport::Logger#level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:28
                                                                  • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:16
                                                                    • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:12
                                                                      • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                      • BasicObject#__id__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                • ActiveSupport::Logger#add /usr/local/lib/ruby/2.5.0/logger.rb:455
                                                                  • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:457
                                                                  • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:460
                                                                  • NilClass#nil? /usr/local/lib/ruby/2.5.0/logger.rb:463
                                                                  • Kernel#block_given? /usr/local/lib/ruby/2.5.0/logger.rb:464
                                                                  • ActiveSupport::Logger#format_severity /usr/local/lib/ruby/2.5.0/logger.rb:579
                                                                  • #<Class:Time>#now /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                    • Time#initialize /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                  • ActiveSupport::Logger#format_message /usr/local/lib/ruby/2.5.0/logger.rb:583
                                                                    • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:20
                                                                      • ActiveSupport::Logger::SimpleFormatter#tags_text $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:50
                                                                        • ActiveSupport::Logger::SimpleFormatter#current_tags $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:45
                                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:46
                                                                          • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:46
                                                                        • Array#any? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:52
                                                                      • NilClass#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:21
                                                                      • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:102
                                                                        • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:103
                                                                  • Logger::LogDevice#write /usr/local/lib/ruby/2.5.0/logger.rb:686
                                                                    • Logger::LogDevice#mon_synchronize /usr/local/lib/ruby/2.5.0/monitor.rb:223
                                                                      • Logger::LogDevice#mon_enter /usr/local/lib/ruby/2.5.0/monitor.rb:183
                                                                        • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:184
                                                                        • Thread::Mutex#lock /usr/local/lib/ruby/2.5.0/monitor.rb:185
                                                                        • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:186
                                                                      • Logger::LogDevice#block in write /usr/local/lib/ruby/2.5.0/logger.rb:688
                                                                        • IO#write /usr/local/lib/ruby/2.5.0/logger.rb:697
                                                                      • Logger::LogDevice#mon_exit /usr/local/lib/ruby/2.5.0/monitor.rb:195
                                                                        • Logger::LogDevice#mon_check_owner /usr/local/lib/ruby/2.5.0/monitor.rb:259
                                                                          • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:260
                                                                        • Thread::Mutex#unlock /usr/local/lib/ruby/2.5.0/monitor.rb:200
                                            • ActiveSupport::Notifications::Fanout#block in finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:46
                                              • ActiveSupport::Notifications::Fanout::Subscribers::Evented#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:101
                                                • ActiveRecord::ExplainSubscriber#finish $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/explain_subscriber.rb:10
                                                  • ActiveRecord::ExplainRegistry.collect? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:50
                                                    • ActiveRecord::ExplainRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                      • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                      • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                    • ActiveRecord::ExplainRegistry#collect? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/explain_registry.rb:21
                            • Array#push $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:170
                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:213
                            • Book#block in with_transaction_returning_status $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:348
                              • Book#add_to_transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:330
                                • Book#has_transactional_callbacks? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:494
                                  • Book#_rollback_callbacks -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                    • Book#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                      • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                      • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                      • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                        • Book._rollback_callbacks -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                          • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                  • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:529
                                  • Book#_commit_callbacks -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                    • Book#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                      • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                      • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                      • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                        • Book._commit_callbacks -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                          • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                  • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:529
                                • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:332
                                • Book.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                  • Book.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                    • Book.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                      • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                        • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                          • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                      • Book.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                        • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                    • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                      • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                        • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                          • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                        • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                      • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                        • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                          • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                            • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                              • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#add_transaction_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:233
                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#current_transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:221
                                    • ActiveRecord::ConnectionAdapters::TransactionManager#current_transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:207
                                      • Array#last $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:208
                                  • ActiveRecord::ConnectionAdapters::RealTransaction#add_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:57
                                • Book#remember_transaction_record_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:369
                                  • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                    • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                      • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                  • Hash#[]= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:370
                                  • Book#frozen? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:415
                                    • Kernel#frozen? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:416
                                  • Hash#reverse_merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/reverse_merge.rb:17
                                    • Hash#merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/reverse_merge.rb:19
                                  • Hash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:376
                                  • Hash#[]= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:376
                              • Book#block in update $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:250
                                • Book#assign_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_assignment.rb:23
                                  • Kernel#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_assignment.rb:24
                                  • Hash#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_assignment.rb:27
                                  • Hash#stringify_keys $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:33
                                    • Hash#transform_keys $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:8
                                      • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:9
                                      • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:10
                                      • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:10
                                        • Hash#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:10
                                      • Hash#each_key $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:11
                                        • Hash#block in transform_keys $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:11
                                          • Hash#block in stringify_keys $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:34
                                            • Symbol#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:34
                                  • Book#sanitize_for_mass_assignment $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/forbidden_attributes_protection.rb:19
                                    • Kernel#respond_to? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/forbidden_attributes_protection.rb:20
                                  • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_assignment.rb:35
                                    • Book#block in assign_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_assignment.rb:35
                                      • String#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_assignment.rb:36
                                      • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_assignment.rb:38
                                      • Book#_assign_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_assignment.rb:53
                                        • Kernel#public_send $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_assignment.rb:54
                                          • Book#__temp__97561627 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                            • Book#write_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:92
                                              • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:93
                                              • Book#old_attribute_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:120
                                                • Book#attribute_changed? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:176
                                                  • Book#changes_include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:80
                                                    • Book#changes_include? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:195
                                                      • Book#changed_attributes $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:171
                                                      • ActiveSupport::HashWithIndifferentAccess#key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:149
                                                        • ActiveSupport::HashWithIndifferentAccess#convert_key $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:269
                                                          • Kernel#kind_of? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:270
                                                        • Hash#key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:150
                                                    • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                      • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                        • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                        • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                      • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                        • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                      • ActiveRecord::Attribute::FromUser#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                        • ActiveRecord::Attribute::FromUser#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                        • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                        • ActiveRecord::Type::Integer#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:79
                                                  • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:178
                                                  • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:179
                                                • Book#clone_attribute_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:374
                                                  • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                    • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                    • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                      • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                        • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                      • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                  • Integer#duplicable? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/duplicable.rb:24
                                                  • Numeric#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:376
                                              • Book#write_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/write.rb:55
                                                • Book#write_attribute_with_type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/write.rb:69
                                                  • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/write.rb:70
                                                  • ActiveRecord::AttributeSet#write_from_user $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:38
                                                    • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                      • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                    • ActiveRecord::Attribute::FromUser#with_value_from_user $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:57
                                                      • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:58
                                                      • ActiveRecord::Attribute::FromUser.from_user $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:8
                                                        • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:9
                                                          • ActiveRecord::Attribute::FromUser#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:29
                                                    • ActiveRecord::LazyAttributeHash#[]= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:43
                                                      • Kernel#frozen? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:44
                                              • Book#store_original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:169
                                                • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                  • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                • ActiveRecord::Attribute::FromUser#value_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:45
                                                  • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                    • ActiveRecord::Attribute::FromUser#original_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:41
                                                      • ActiveRecord::Attribute::FromUser#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:109
                                                        • ActiveRecord::Type::Integer#type_cast_from_user $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:33
                                                          • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:8
                                                            • TrueClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:10
                                                            • FalseClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:11
                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:12
                                                            • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:97
                                                              • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:98
                                                              • ActiveRecord::Type::Integer#cast_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:34
                                                                • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:39
                                                  • ActiveRecord::Type::Integer#type_cast_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:20
                                                    • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:8
                                                      • TrueClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:10
                                                      • FalseClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:11
                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:12
                                                      • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:97
                                                        • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:98
                                                        • ActiveRecord::Type::Integer#cast_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:34
                                                          • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:39
                                                    • ActiveRecord::Type::Integer#ensure_in_range $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:43
                                                      • Range#cover? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                        • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                        • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                              • Book#save_changed_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:111
                                                • Book#clear_changed_attributes_cache $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:186
                                                • Book#changes_include? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:195
                                                  • Book#changed_attributes $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:171
                                                  • ActiveSupport::HashWithIndifferentAccess#key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:149
                                                    • ActiveSupport::HashWithIndifferentAccess#convert_key $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:269
                                                      • Kernel#kind_of? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:270
                                                    • Hash#key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:150
                                                • Book#_field_changed? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:142
                                                  • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                    • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                  • ActiveRecord::Attribute::FromUser#changed_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:49
                                                    • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                    • ActiveRecord::Type::Integer#changed? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:18
                                                      • ActiveRecord::Type::Integer#changed? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:71
                                                • Book#set_attribute_was $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:262
                                                  • Book#changed_attributes $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:171
                                                  • ActiveSupport::HashWithIndifferentAccess#[]= $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:96
                                                    • ActiveSupport::HashWithIndifferentAccess#convert_key $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:269
                                                      • Kernel#kind_of? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:270
                                                    • ActiveSupport::HashWithIndifferentAccess#convert_value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:273
                                                      • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:274
                                                      • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:280
                                                    • ActiveSupport::HashWithIndifferentAccess#[]= $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:97
                                • Book#save $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:284
                                  • Book#rollback_active_record_state! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:299
                                    • Book#remember_transaction_record_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:369
                                      • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                        • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                          • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                          • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                            • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                      • Hash#[]= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:370
                                      • Book#frozen? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:415
                                        • Kernel#frozen? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:416
                                      • Hash#reverse_merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/reverse_merge.rb:17
                                        • Hash#merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/reverse_merge.rb:19
                                          • Hash#block in reverse_merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/reverse_merge.rb:19
                                          • Hash#block in reverse_merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/reverse_merge.rb:19
                                          • Hash#block in reverse_merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/reverse_merge.rb:19
                                      • Hash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:376
                                      • Hash#[]= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:376
                                    • Book#block in save $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:285
                                      • Book#with_transaction_returning_status $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:346
                                        • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:348
                                        • Book.transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:218
                                          • Book.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                            • Book.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                              • Book.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                  • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                    • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                    • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                • Book.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                  • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                              • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                                • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                  • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                    • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                  • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                                  • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                                    • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                                      • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                        • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                          • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:204
                                            • Hash#assert_valid_keys $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:71
                                              • Array#flatten! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:72
                                              • Hash#each_key $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:73
                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#current_transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:221
                                              • ActiveRecord::ConnectionAdapters::TransactionManager#current_transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:207
                                                • Array#last $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:208
                                            • ActiveRecord::ConnectionAdapters::RealTransaction#joinable? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:102
                                            • Book#block in with_transaction_returning_status $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:348
                                              • Book#add_to_transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:330
                                                • Book#has_transactional_callbacks? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:494
                                                  • Book#_rollback_callbacks -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                    • Book#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                      • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                                      • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                      • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                        • Book._rollback_callbacks -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                          • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                  • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:529
                                                  • Book#_commit_callbacks -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                    • Book#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                      • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                                      • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                      • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                        • Book._commit_callbacks -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                          • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                  • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:529
                                                • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:332
                                                • Book.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                                  • Book.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                                    • Book.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                      • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                        • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                          • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                      • Book.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                        • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                    • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                                      • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                        • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                          • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                        • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                      • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                                        • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                                          • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                                            • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                              • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#add_transaction_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:233
                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#current_transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:221
                                                    • ActiveRecord::ConnectionAdapters::TransactionManager#current_transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:207
                                                      • Array#last $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:208
                                                  • ActiveRecord::ConnectionAdapters::RealTransaction#add_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:57
                                                • Book#remember_transaction_record_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:369
                                                  • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                    • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                      • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                  • Hash#[]= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:370
                                                  • Book#frozen? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:415
                                                    • Kernel#frozen? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:416
                                                  • Hash#reverse_merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/reverse_merge.rb:17
                                                    • Hash#merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/reverse_merge.rb:19
                                                      • Hash#block in reverse_merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/reverse_merge.rb:19
                                                      • Hash#block in reverse_merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/reverse_merge.rb:19
                                                      • Hash#block in reverse_merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/reverse_merge.rb:19
                                                  • Hash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:376
                                                  • Hash#[]= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:376
                                              • Book#block (2 levels) in save $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:286
                                                • Book#save $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:20
                                                  • Book#save $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/validations.rb:36
                                                    • Book#perform_validations $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/validations.rb:82
                                                      • Book#valid? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/validations.rb:56
                                                        • Book#new_record? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:85
                                                          • Book#sync_with_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:515
                                                            • Book#update_attributes_from_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:519
                                                        • Book#valid? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/validations.rb:335
                                                          • Book#errors $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/validations.rb:300
                                                          • ActiveModel::Errors#clear $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/errors.rb:86
                                                            • Hash#clear $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/errors.rb:87
                                                          • Book#run_validations! $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/validations/callbacks.rb:112
                                                            • Book#_run_validation_callbacks $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:777
                                                              • Book#_validation_callbacks -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                • Book#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                  • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                                                  • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                  • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                    • Book._validation_callbacks -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                      • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                              • Book#__run_callbacks__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:86
                                                                • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:529
                                                                • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:88
                                                                • Book#block in run_validations! $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/validations/callbacks.rb:113
                                                                  • Book#run_validations! $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/validations.rb:398
                                                                    • Book#_run_validate_callbacks $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:777
                                                                      • Book#_validate_callbacks -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                        • Book#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                          • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                                                          • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                          • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                            • Book._validate_callbacks -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                              • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                      • Book#__run_callbacks__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:86
                                                                        • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:529
                                                                        • ActiveSupport::Callbacks::CallbackChain#compile $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:553
                                                                        • #<Class:ActiveSupport::Callbacks::Filters::Environment>#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:91
                                                                          • Struct#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:91
                                                                        • ActiveSupport::Callbacks::CallbackSequence#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:503
                                                                          • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:504
                                                                            • ActiveSupport::Callbacks::CallbackSequence#block in call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:504
                                                                              • ActiveSupport::Callbacks::Filters::Before.block in simple $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:191
                                                                                • ActiveSupport::Callbacks::Filters::Environment#target $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:192
                                                                                • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:192
                                                                                • ActiveSupport::Callbacks::Callback#block in make_lambda $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:432
                                                                                  • Book#validate_associated_records_for_taggings -> block in define_non_cyclic_method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:151
                                                                                    • Book#block in define_non_cyclic_method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:151
                                                                                      • BasicObject#instance_eval $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:157
                                                                                        • Book#block in define_autosave_validation_callbacks $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:217
                                                                                          • Book#validate_collection_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:309
                                                                                            • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                                            • Book#new_record? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:85
                                                                                              • Book#sync_with_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:515
                                                                                                • Book#update_attributes_from_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:519
                                                                                            • Book#associated_records_to_validate_or_save $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:270
                                                                                              • Enumerable#find_all $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:276
                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:276
                                                                                            • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:312
                                                                            • ActiveSupport::Callbacks::CallbackSequence#block in call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:504
                                                                              • ActiveSupport::Callbacks::Filters::Before.block in simple $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:191
                                                                                • ActiveSupport::Callbacks::Filters::Environment#target $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:192
                                                                                • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:192
                                                                                • ActiveSupport::Callbacks::Callback#block in make_lambda $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:432
                                                                                  • Book#validate_associated_records_for_base_tags -> block in define_non_cyclic_method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:151
                                                                                    • Book#block in define_non_cyclic_method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:151
                                                                                      • BasicObject#instance_eval $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:157
                                                                                        • Book#block in define_autosave_validation_callbacks $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:217
                                                                                          • Book#validate_collection_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:309
                                                                                            • ActiveRecord::Reflection::ThroughReflection#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                            • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                            • ActiveSupport::Callbacks::CallbackSequence#block in call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:504
                                                                              • ActiveSupport::Callbacks::Filters::Before.block in simple $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:191
                                                                                • ActiveSupport::Callbacks::Filters::Environment#target $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:192
                                                                                • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:192
                                                                                • ActiveSupport::Callbacks::Callback#block in make_lambda $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:432
                                                                                  • Book#validate_associated_records_for_tag_taggings -> block in define_non_cyclic_method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:151
                                                                                    • Book#block in define_non_cyclic_method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:151
                                                                                      • BasicObject#instance_eval $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:157
                                                                                        • Book#block in define_autosave_validation_callbacks $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:217
                                                                                          • Book#validate_collection_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:309
                                                                                            • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                            • ActiveSupport::Callbacks::CallbackSequence#block in call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:504
                                                                              • ActiveSupport::Callbacks::Filters::Before.block in simple $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:191
                                                                                • ActiveSupport::Callbacks::Filters::Environment#target $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:192
                                                                                • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:192
                                                                                • ActiveSupport::Callbacks::Callback#block in make_lambda $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:432
                                                                                  • Book#validate_associated_records_for_tags -> block in define_non_cyclic_method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:151
                                                                                    • Book#block in define_non_cyclic_method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:151
                                                                                      • BasicObject#instance_eval $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:157
                                                                                        • Book#block in define_autosave_validation_callbacks $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:217
                                                                                          • Book#validate_collection_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:309
                                                                                            • ActiveRecord::Reflection::ThroughReflection#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                            • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                          • ActiveSupport::Callbacks::CallbackChain#block (2 levels) in compile $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:555
                                                                            • ActiveSupport::Callbacks::Filters::End#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:115
                                                                              • ActiveSupport::Callbacks::Filters::Environment#run_block $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:116
                                                                              • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:117
                                                                          • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:506
                                                                        • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:92
                                                                    • Book#errors $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/validations.rb:300
                                                                    • ActiveModel::Errors#empty? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/errors.rb:218
                                                                      • Enumerable#all? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/errors.rb:219
                                                                        • ActiveModel::Errors#each $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/errors.rb:162
                                                                          • Hash#each_key $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/errors.rb:163
                                                        • Book#errors $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/validations.rb:300
                                                        • ActiveModel::Errors#empty? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/errors.rb:218
                                                          • Enumerable#all? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/errors.rb:219
                                                            • ActiveModel::Errors#each $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/errors.rb:162
                                                              • Hash#each_key $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/errors.rb:163
                                                    • Book#save $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:119
                                                      • Book#create_or_update $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/callbacks.rb:301
                                                        • Book#_run_save_callbacks $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:777
                                                          • Book#_save_callbacks -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                            • Book#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                              • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                                              • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                              • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                • Book._save_callbacks -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                  • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                          • Book#__run_callbacks__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:86
                                                            • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:529
                                                            • ActiveSupport::Callbacks::CallbackChain#compile $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:553
                                                            • #<Class:ActiveSupport::Callbacks::Filters::Environment>#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:91
                                                              • Struct#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:91
                                                            • ActiveSupport::Callbacks::CallbackSequence#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:503
                                                              • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:504
                                                                • ActiveSupport::Callbacks::CallbackSequence#block in call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:504
                                                                  • ActiveSupport::Callbacks::Filters::Before.block in halting $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:158
                                                                    • ActiveSupport::Callbacks::Filters::Environment#target $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:159
                                                                    • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:160
                                                                    • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:161
                                                                    • ActiveSupport::Callbacks::Callback#block in make_lambda $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:432
                                                                      • Book#before_save_collection_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:340
                                                                        • Book#new_record? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:85
                                                                          • Book#sync_with_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:515
                                                                            • Book#update_attributes_from_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:519
                                                                    • ActiveRecord::Base.block in define_model_callbacks $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:106
                                                                    • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:166
                                                                • ActiveSupport::Callbacks::CallbackSequence#block in call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:504
                                                                  • ActiveSupport::Callbacks::Filters::Before.block in halting $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:158
                                                                    • ActiveSupport::Callbacks::Filters::Environment#target $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:159
                                                                    • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:160
                                                                    • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:161
                                                                    • ActiveSupport::Callbacks::Callback#block in make_lambda $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:432
                                                                      • Book#autosave_associated_records_for_author -> block in define_non_cyclic_method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:151
                                                                        • Book#block in define_non_cyclic_method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:151
                                                                          • BasicObject#instance_eval $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:157
                                                                            • Book#block in add_autosave_association_callbacks $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:201
                                                                              • Book#save_belongs_to_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:431
                                                                                • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                    • ActiveRecord::Base.block in define_model_callbacks $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:106
                                                                    • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:166
                                                              • ActiveSupport::Callbacks::CallbackChain#block (2 levels) in compile $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:555
                                                                • ActiveSupport::Callbacks::Filters::End#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:115
                                                                  • ActiveSupport::Callbacks::Filters::Environment#run_block $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:116
                                                                  • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:117
                                                                  • Book#block in create_or_update $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/callbacks.rb:302
                                                                    • Book#create_or_update $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:502
                                                                      • Book#readonly? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:430
                                                                      • Book#new_record? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:85
                                                                        • Book#sync_with_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:515
                                                                          • Book#update_attributes_from_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:519
                                                                      • Book#_update_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:60
                                                                        • Book#should_record_timestamps? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:73
                                                                          • Book#record_timestamps -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                            • Book#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                              • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                                                              • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                              • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                • Book.record_timestamps -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                  • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                          • Book#partial_writes? -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:113
                                                                            • Book#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:113
                                                                              • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:113
                                                                                • Book#partial_writes -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                  • Book#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                    • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                                                                    • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                    • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                      • Book.partial_writes -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                        • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                          • Book#changed? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:132
                                                                            • Book#changed_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:57
                                                                              • Book#changed_attributes $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:171
                                                                              • Book#attributes_changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:146
                                                                                • Book#changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:153
                                                                                  • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                                  • Book.attribute_names $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:186
                                                                                  • Array#select $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                                    • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                                      • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                                        • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                                          • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                        • ActiveRecord::Attribute::FromDatabase#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                                          • ActiveRecord::Attribute::FromDatabase#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                          • ActiveRecord::Type::Integer#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:79
                                                                                    • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                                      • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                                        • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                                          • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                        • ActiveRecord::Attribute::FromDatabase#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                                          • ActiveRecord::Attribute::FromDatabase#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                          • ActiveRecord::Type::String#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:8
                                                                                            • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:9
                                                                                    • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                                      • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                                        • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                                          • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                        • ActiveRecord::Attribute::FromDatabase#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                                          • ActiveRecord::Attribute::FromDatabase#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                          • ActiveRecord::Type::Text#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:8
                                                                                            • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:9
                                                                                    • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                                      • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                                        • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                                          • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                        • ActiveRecord::Attribute::FromUser#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                                          • ActiveRecord::Attribute::FromUser#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                                          • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                          • ActiveRecord::Type::Integer#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:79
                                                                                    • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                                      • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                                        • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                                          • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                        • ActiveRecord::Attribute::FromDatabase#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                                          • ActiveRecord::Attribute::FromDatabase#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                          • ActiveRecord::Type::Integer#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:79
                                                                                    • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                                      • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                                        • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                                          • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                        • ActiveRecord::Attribute::FromDatabase#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                                          • ActiveRecord::Attribute::FromDatabase#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                          • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#changed_in_place? -> block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                            • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                              • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /usr/local/lib/ruby/2.5.0/delegate.rb:392
                                                                                              • ActiveRecord::Type::DateTime#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:79
                                                                                    • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                                      • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                                        • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                                          • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                        • ActiveRecord::Attribute::FromUser#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                                          • ActiveRecord::Attribute::FromUser#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                                          • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                          • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#changed_in_place? -> block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                            • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                              • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /usr/local/lib/ruby/2.5.0/delegate.rb:392
                                                                                              • ActiveRecord::Type::DateTime#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:79
                                                                                • Enumerable#each_with_object $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:147
                                                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:147
                                                                              • ActiveSupport::HashWithIndifferentAccess#reverse_merge $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:208
                                                                                • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:209
                                                                                • ActiveSupport::HashWithIndifferentAccess.new_from_hash_copying_default $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:75
                                                                                  • Hash#to_hash $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:76
                                                                                  • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:77
                                                                                    • ActiveSupport::HashWithIndifferentAccess#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:58
                                                                                      • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:59
                                                                                      • Hash#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:60
                                                                                      • ActiveSupport::HashWithIndifferentAccess#update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:127
                                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:128
                                                                                        • Hash#to_hash $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:131
                                                                                        • Hash#each_pair $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:131
                                                                                  • Kernel#tap $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:77
                                                                                    • ActiveSupport::HashWithIndifferentAccess.block in new_from_hash_copying_default $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:77
                                                                                      • Hash#default $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:78
                                                                                      • Hash#default= $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:78
                                                                                      • Hash#default_proc $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:79
                                                                                • ActiveSupport::HashWithIndifferentAccess#reverse_merge $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/reverse_merge.rb:12
                                                                                  • ActiveSupport::HashWithIndifferentAccess#merge $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:198
                                                                                    • ActiveSupport::HashWithIndifferentAccess#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:189
                                                                                      • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:190
                                                                                      • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:190
                                                                                        • ActiveSupport::HashWithIndifferentAccess#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:58
                                                                                          • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:59
                                                                                          • Hash#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:60
                                                                                          • ActiveSupport::HashWithIndifferentAccess#update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:127
                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:128
                                                                                            • Hash#update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:129
                                                                                      • Kernel#tap $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:190
                                                                                        • ActiveSupport::HashWithIndifferentAccess#block in dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:190
                                                                                          • ActiveSupport::HashWithIndifferentAccess#set_defaults $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:290
                                                                                            • Hash#default_proc $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:291
                                                                                            • ActiveSupport::HashWithIndifferentAccess#default $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:67
                                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:68
                                                                                              • Hash#default $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:71
                                                                                            • Hash#default= $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:294
                                                                                    • ActiveSupport::HashWithIndifferentAccess#update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:127
                                                                                      • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:128
                                                                                      • Hash#update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:129
                                                                              • Kernel#freeze $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:63
                                                                            • ActiveSupport::HashWithIndifferentAccess#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                                              • Hash#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:24
                                                                        • Book#current_time_from_proper_timezone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:109
                                                                          • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:110
                                                                          • Book.default_timezone $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                          • #<Class:Time>#now $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:110
                                                                            • Time#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:110
                                                                          • Time#utc $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:110
                                                                        • Book#timestamp_attributes_for_update_in_model $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:81
                                                                          • Book#timestamp_attributes_for_update $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:89
                                                                          • Array#select $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:82
                                                                            • Book#block in timestamp_attributes_for_update_in_model $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:82
                                                                              • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:82
                                                                              • Book.column_names $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:259
                                                                              • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:82
                                                                              • Array#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:82
                                                                            • Book#block in timestamp_attributes_for_update_in_model $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:82
                                                                              • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:82
                                                                              • Book.column_names $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:259
                                                                              • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:82
                                                                              • Array#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:82
                                                                        • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:64
                                                                          • Book#block in _update_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:64
                                                                            • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/timestamp.rb:65
                                                                            • Book#attribute_changed? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:176
                                                                              • Book#changes_include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:80
                                                                                • Book#changes_include? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:195
                                                                                  • Book#changed_attributes $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:171
                                                                                  • ActiveSupport::HashWithIndifferentAccess#key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:149
                                                                                    • ActiveSupport::HashWithIndifferentAccess#convert_key $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:269
                                                                                      • Kernel#kind_of? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:270
                                                                                    • Hash#key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:150
                                                                                • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                                  • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                                    • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                                    • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                                  • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                    • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                  • ActiveRecord::Attribute::FromUser#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                                    • ActiveRecord::Attribute::FromUser#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                                    • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                    • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#changed_in_place? -> block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                      • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                        • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /usr/local/lib/ruby/2.5.0/delegate.rb:392
                                                                                        • ActiveRecord::Type::DateTime#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:79
                                                                              • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:178
                                                                              • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:179
                                                                            • Book#write_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:92
                                                                              • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:93
                                                                              • Book#old_attribute_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:120
                                                                                • Book#attribute_changed? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:176
                                                                                  • Book#changes_include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:80
                                                                                    • Book#changes_include? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:195
                                                                                      • Book#changed_attributes $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:171
                                                                                      • ActiveSupport::HashWithIndifferentAccess#key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:149
                                                                                        • ActiveSupport::HashWithIndifferentAccess#convert_key $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:269
                                                                                          • Kernel#kind_of? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:270
                                                                                        • Hash#key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:150
                                                                                    • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                                      • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                                        • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                                        • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                                      • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                        • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                      • ActiveRecord::Attribute::FromUser#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                                        • ActiveRecord::Attribute::FromUser#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                                        • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                        • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#changed_in_place? -> block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                          • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                            • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /usr/local/lib/ruby/2.5.0/delegate.rb:392
                                                                                            • ActiveRecord::Type::DateTime#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:79
                                                                                  • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:178
                                                                                  • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:179
                                                                                • Book#clone_attribute_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:374
                                                                                  • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                    • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                    • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                      • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                        • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                      • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                  • ActiveSupport::TimeWithZone#duplicable? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/duplicable.rb:24
                                                                                  • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:376
                                                                                    • Module#method_added $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:376
                                                                                    • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:376
                                                                                      • Kernel#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:376
                                                                              • Book#write_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/write.rb:55
                                                                                • Book#write_attribute_with_type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/write.rb:69
                                                                                  • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/write.rb:70
                                                                                  • ActiveRecord::AttributeSet#write_from_user $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:38
                                                                                    • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                      • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                    • ActiveRecord::Attribute::FromUser#with_value_from_user $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:57
                                                                                      • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:58
                                                                                      • ActiveRecord::Attribute::FromUser.from_user $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:8
                                                                                        • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:9
                                                                                          • ActiveRecord::Attribute::FromUser#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:29
                                                                                    • ActiveRecord::LazyAttributeHash#[]= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:43
                                                                                      • Kernel#frozen? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:44
                                                                              • Book#store_original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:169
                                                                                • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                                • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                  • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                • ActiveRecord::Attribute::FromUser#value_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:45
                                                                                  • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                    • ActiveRecord::Attribute::FromUser#original_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:41
                                                                                      • ActiveRecord::Attribute::FromUser#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:109
                                                                                        • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#type_cast_from_user $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/time_zone_conversion.rb:11
                                                                                          • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter.const_missing /usr/local/lib/ruby/2.5.0/delegate.rb:56
                                                                                            • Module#const_get /usr/local/lib/ruby/2.5.0/delegate.rb:57
                                                                                          • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/time_zone_conversion.rb:12
                                                                                          • Kernel#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/time_zone_conversion.rb:14
                                                                                          • Time.zone $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/zones.rb:12
                                                                                            • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/zones.rb:13
                                                                                            • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/zones.rb:13
                                                                                          • Time#in_time_zone $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/date_and_time/zones.rb:19
                                                                                            • Time.find_zone! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/zones.rb:55
                                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/zones.rb:56
                                                                                            • Time#acts_like? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/acts_like.rb:7
                                                                                              • Symbol#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/acts_like.rb:8
                                                                                              • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/acts_like.rb:8
                                                                                            • Time#time_with_zone $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/date_and_time/zones.rb:32
                                                                                              • Time#utc? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/date_and_time/zones.rb:34
                                                                                              • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/date_and_time/zones.rb:34
                                                                                                • ActiveSupport::TimeWithZone#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:47
                                                                                                  • ActiveSupport::TimeWithZone#transfer_time_values_to_utc_constructor $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:402
                                                                                                    • Time#year $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                    • Time#month $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                    • Time#day $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                    • Time#hour $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                    • Time#min $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                    • Time#sec $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                    • Time#subsec $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                      • Integer#to_r $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                    • Integer#+ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                      • Rational#coerce $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                      • Rational#+ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                    • #<Class:Time>#utc $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                      • Numeric#divmod $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                        • Numeric#div $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                          • Rational#/ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                          • Rational#floor $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                        • Integer#* $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                        • Rational#- $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                        • Rational#/ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                        • Rational#floor $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                                      • Rational#* $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:403
                                                                                  • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#type_cast_for_database -> block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                    • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                      • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /usr/local/lib/ruby/2.5.0/delegate.rb:392
                                                                                      • ActiveRecord::Type::DateTime#type_cast_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/date_time.rb:10
                                                                                        • ActiveSupport::TimeWithZone#acts_like? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/acts_like.rb:7
                                                                                          • Symbol#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/acts_like.rb:8
                                                                                          • ActiveSupport::TimeWithZone#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:367
                                                                                            • Symbol#to_sym $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:369
                                                                                            • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:370
                                                                                        • ActiveRecord::Base.default_timezone $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                        • ActiveSupport::TimeWithZone#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:367
                                                                                          • Symbol#to_sym $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:369
                                                                                          • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:370
                                                                                        • ActiveSupport::TimeWithZone#utc $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:59
                                                                              • Book#save_changed_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:111
                                                                                • Book#clear_changed_attributes_cache $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:186
                                                                                • Book#changes_include? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:195
                                                                                  • Book#changed_attributes $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:171
                                                                                  • ActiveSupport::HashWithIndifferentAccess#key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:149
                                                                                    • ActiveSupport::HashWithIndifferentAccess#convert_key $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:269
                                                                                      • Kernel#kind_of? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:270
                                                                                    • Hash#key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:150
                                                                                • Book#_field_changed? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:142
                                                                                  • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                    • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                  • ActiveRecord::Attribute::FromUser#changed_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:49
                                                                                    • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                    • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#changed? -> block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                      • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                        • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /usr/local/lib/ruby/2.5.0/delegate.rb:392
                                                                                        • ActiveRecord::Type::DateTime#changed? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:71
                                                                                          • BasicObject#!= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:72
                                                                                            • Comparable#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:72
                                                                                              • ActiveSupport::TimeWithZone#<=> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:217
                                                                                                • ActiveSupport::TimeWithZone#utc $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:59
                                                                                                • Time#compare_with_coercion $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:258
                                                                                                  • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:260
                                                                                                  • ActiveSupport::TimeWithZone#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:346
                                                                                                  • ActiveSupport::TimeWithZone#to_time $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:332
                                                                                                    • ActiveSupport::TimeWithZone#preserve_timezone $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:67
                                                                                                    • ActiveSupport::TimeWithZone#localtime $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:79
                                                                                                      • ActiveSupport::TimeWithZone#utc $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:59
                                                                                                      • Time#getlocal $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:80
                                                                                                  • Time#<=> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:263
                                                                                • Book#set_attribute_was $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:262
                                                                                  • Book#changed_attributes $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:171
                                                                                  • ActiveSupport::HashWithIndifferentAccess#[]= $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:96
                                                                                    • ActiveSupport::HashWithIndifferentAccess#convert_key $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:269
                                                                                      • Kernel#kind_of? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:270
                                                                                    • ActiveSupport::HashWithIndifferentAccess#convert_value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:273
                                                                                      • ActiveSupport::TimeWithZone#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:346
                                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:347
                                                                                      • ActiveSupport::TimeWithZone#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:346
                                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:347
                                                                                    • ActiveSupport::HashWithIndifferentAccess#[]= $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:97
                                                                        • Book#_update_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/callbacks.rb:309
                                                                          • Book#_run_update_callbacks $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:777
                                                                            • Book#_update_callbacks -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                              • Book#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                                                                • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                  • Book._update_callbacks -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                    • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                            • Book#__run_callbacks__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:86
                                                                              • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:529
                                                                              • ActiveSupport::Callbacks::CallbackChain#compile $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:553
                                                                              • #<Class:ActiveSupport::Callbacks::Filters::Environment>#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:91
                                                                                • Struct#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:91
                                                                              • ActiveSupport::Callbacks::CallbackSequence#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:503
                                                                                • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:504
                                                                                • ActiveSupport::Callbacks::CallbackChain#block (2 levels) in compile $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:555
                                                                                  • ActiveSupport::Callbacks::Filters::End#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:115
                                                                                    • ActiveSupport::Callbacks::Filters::Environment#run_block $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:116
                                                                                    • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:117
                                                                                    • Book#block in _update_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/callbacks.rb:310
                                                                                      • Book#_update_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:128
                                                                                        • Book#partial_writes? -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:113
                                                                                          • Book#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:113
                                                                                            • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:113
                                                                                              • Book#partial_writes -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                                • Book#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                                  • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                                                                                  • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                                  • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                                    • Book.partial_writes -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                      • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                        • Book#keys_for_partial_write $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:138
                                                                                          • Book#changed $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:141
                                                                                            • Book#changed_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:57
                                                                                              • Book#changed_attributes $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:171
                                                                                              • Book#attributes_changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:146
                                                                                                • Book#changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:153
                                                                                                  • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                                                  • Book.attribute_names $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:186
                                                                                                  • Array#select $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                                                    • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                                                      • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                                                        • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                                                          • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                        • ActiveRecord::Attribute::FromDatabase#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                                                          • ActiveRecord::Attribute::FromDatabase#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                          • ActiveRecord::Type::Integer#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:79
                                                                                                    • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                                                      • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                                                        • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                                                          • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                        • ActiveRecord::Attribute::FromDatabase#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                                                          • ActiveRecord::Attribute::FromDatabase#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                          • ActiveRecord::Type::String#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:8
                                                                                                            • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:9
                                                                                                    • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                                                      • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                                                        • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                                                          • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                        • ActiveRecord::Attribute::FromDatabase#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                                                          • ActiveRecord::Attribute::FromDatabase#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                          • ActiveRecord::Type::Text#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:8
                                                                                                            • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:9
                                                                                                    • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                                                      • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                                                        • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                                                          • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                        • ActiveRecord::Attribute::FromUser#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                                                          • ActiveRecord::Attribute::FromUser#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                                                          • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                          • ActiveRecord::Type::Integer#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:79
                                                                                                    • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                                                      • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                                                        • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                                                          • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                        • ActiveRecord::Attribute::FromDatabase#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                                                          • ActiveRecord::Attribute::FromDatabase#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                          • ActiveRecord::Type::Integer#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:79
                                                                                                    • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                                                      • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                                                        • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                                                          • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                        • ActiveRecord::Attribute::FromDatabase#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                                                          • ActiveRecord::Attribute::FromDatabase#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                          • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#changed_in_place? -> block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                                            • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                                              • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /usr/local/lib/ruby/2.5.0/delegate.rb:392
                                                                                                              • ActiveRecord::Type::DateTime#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:79
                                                                                                    • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                                                      • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                                                        • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                                                          • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                        • ActiveRecord::Attribute::FromUser#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                                                          • ActiveRecord::Attribute::FromUser#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                                                          • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                          • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#changed_in_place? -> block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                                            • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                                              • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /usr/local/lib/ruby/2.5.0/delegate.rb:392
                                                                                                              • ActiveRecord::Type::DateTime#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:79
                                                                                                • Enumerable#each_with_object $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:147
                                                                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:147
                                                                                              • ActiveSupport::HashWithIndifferentAccess#reverse_merge $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:208
                                                                                                • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:209
                                                                                                • ActiveSupport::HashWithIndifferentAccess.new_from_hash_copying_default $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:75
                                                                                                  • Hash#to_hash $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:76
                                                                                                  • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:77
                                                                                                    • ActiveSupport::HashWithIndifferentAccess#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:58
                                                                                                      • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:59
                                                                                                      • Hash#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:60
                                                                                                      • ActiveSupport::HashWithIndifferentAccess#update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:127
                                                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:128
                                                                                                        • Hash#to_hash $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:131
                                                                                                        • Hash#each_pair $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:131
                                                                                                  • Kernel#tap $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:77
                                                                                                    • ActiveSupport::HashWithIndifferentAccess.block in new_from_hash_copying_default $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:77
                                                                                                      • Hash#default $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:78
                                                                                                      • Hash#default= $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:78
                                                                                                      • Hash#default_proc $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:79
                                                                                                • ActiveSupport::HashWithIndifferentAccess#reverse_merge $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/reverse_merge.rb:12
                                                                                                  • ActiveSupport::HashWithIndifferentAccess#merge $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:198
                                                                                                    • ActiveSupport::HashWithIndifferentAccess#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:189
                                                                                                      • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:190
                                                                                                      • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:190
                                                                                                        • ActiveSupport::HashWithIndifferentAccess#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:58
                                                                                                          • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:59
                                                                                                          • Hash#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:60
                                                                                                          • ActiveSupport::HashWithIndifferentAccess#update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:127
                                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:128
                                                                                                            • Hash#update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:129
                                                                                                      • Kernel#tap $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:190
                                                                                                        • ActiveSupport::HashWithIndifferentAccess#block in dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:190
                                                                                                          • ActiveSupport::HashWithIndifferentAccess#set_defaults $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:290
                                                                                                            • Hash#default_proc $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:291
                                                                                                            • ActiveSupport::HashWithIndifferentAccess#default $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:67
                                                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:68
                                                                                                              • Hash#default $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:71
                                                                                                            • Hash#default= $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:294
                                                                                                    • ActiveSupport::HashWithIndifferentAccess#update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:127
                                                                                                      • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:128
                                                                                                      • Hash#update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:129
                                                                                              • Kernel#freeze $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:63
                                                                                            • Hash#keys $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:142
                                                                                          • Book#persistable_attribute_names $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attributes.rb:13
                                                                                            • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attributes.rb:13
                                                                                            • Book.persistable_attribute_names $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attributes.rb:101
                                                                                          • Array#& $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:139
                                                                                        • Book#_update_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/locking/optimistic.rb:78
                                                                                          • Book#locking_enabled? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/locking/optimistic.rb:58
                                                                                            • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/locking/optimistic.rb:59
                                                                                            • Book.locking_enabled? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/locking/optimistic.rb:145
                                                                                              • Book.lock_optimistically -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                              • Book.columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attributes.rb:97
                                                                                              • Book.locking_column $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/locking/optimistic.rb:156
                                                                                          • Book#_update_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:510
                                                                                            • Book#arel_attributes_with_values_for_update $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:385
                                                                                              • Book#attributes_for_update $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:283
                                                                                                • Book#tag_types -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                                  • Book#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                                    • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                                                                                    • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                                    • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                                      • Book.tag_types -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                        • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                • Array#map $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:284
                                                                                                  • Book#block in attributes_for_update $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:284
                                                                                                    • Symbol#to_s $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:284
                                                                                                    • String#singularize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/string/inflections.rb:54
                                                                                                      • ActiveSupport::Inflector.singularize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:48
                                                                                                        • ActiveSupport::Inflector.inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:203
                                                                                                          • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:204
                                                                                                          • ActiveSupport::Inflector::Inflections.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:30
                                                                                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                        • ActiveSupport::Inflector.apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:372
                                                                                                          • String#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:373
                                                                                                          • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:373
                                                                                                            • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:373
                                                                                                              • String#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:373
                                                                                                          • ActiveSupport::Inflector.inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:203
                                                                                                            • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:204
                                                                                                            • ActiveSupport::Inflector::Inflections.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:30
                                                                                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                          • String#downcase $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:375
                                                                                                          • String#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:375
                                                                                                          • Array#include? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:375
                                                                                                          • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                            • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                              • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                • Book#attributes_for_update $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:409
                                                                                                  • Array#reject $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:410
                                                                                                    • Book#block in attributes_for_update $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:410
                                                                                                      • Book#readonly_attribute? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:423
                                                                                                        • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:424
                                                                                                        • Book.readonly_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/readonly_attributes.rb:18
                                                                                                          • Book._attr_readonly -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                            • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                        • Array#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:424
                                                                                                    • Book#block in attributes_for_update $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:410
                                                                                                      • Book#readonly_attribute? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:423
                                                                                                        • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:424
                                                                                                        • Book.readonly_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/readonly_attributes.rb:18
                                                                                                          • Book._attr_readonly -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                            • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                        • Array#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:424
                                                                                                • Array#delete_if $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:285
                                                                                                  • Book#block in attributes_for_update $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:285
                                                                                                    • Array#include? $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:285
                                                                                                  • Book#block in attributes_for_update $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:285
                                                                                                    • Array#include? $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:285
                                                                                              • Book#arel_attributes_with_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:398
                                                                                                • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:400
                                                                                                • Book.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:402
                                                                                                  • Book#block in arel_attributes_with_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:402
                                                                                                    • Arel::Table#[] $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:99
                                                                                                      • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                        • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                    • Book#typecasted_attribute_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:431
                                                                                                      • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                          • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                    • Struct#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:403
                                                                                                      • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:403
                                                                                                      • Arel::Table#hash $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:119
                                                                                                        • String#hash $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:123
                                                                                                      • String#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:403
                                                                                                  • Book#block in arel_attributes_with_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:402
                                                                                                    • Arel::Table#[] $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:99
                                                                                                      • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                        • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                    • Book#typecasted_attribute_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:431
                                                                                                      • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                          • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                    • Struct#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:403
                                                                                                      • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:403
                                                                                                      • Arel::Table#hash $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:119
                                                                                                        • String#hash $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:123
                                                                                                      • String#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:403
                                                                                            • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:515
                                                                                            • Book.unscoped $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:32
                                                                                              • Kernel#block_given? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:33
                                                                                              • Book.relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:253
                                                                                                • Book.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                  • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                    • Book.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                      • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                  • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                    • Book::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                • Book.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                            • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                              • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                  • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                    • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                  • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                            • Book#id_was $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:384
                                                                                              • Book#attribute_was $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:184
                                                                                                • Book#attribute_changed? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:176
                                                                                                  • Book#changes_include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:80
                                                                                                    • Book#changes_include? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:195
                                                                                                      • Book#changed_attributes $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:171
                                                                                                      • ActiveSupport::HashWithIndifferentAccess#key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:149
                                                                                                        • ActiveSupport::HashWithIndifferentAccess#convert_key $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:269
                                                                                                          • Kernel#kind_of? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:270
                                                                                                        • Hash#key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:150
                                                                                                    • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                                                      • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                                                        • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                                                        • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                                                      • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                        • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                      • ActiveRecord::Attribute::FromDatabase#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                                                        • ActiveRecord::Attribute::FromDatabase#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                        • ActiveRecord::Type::Integer#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:79
                                                                                                  • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:178
                                                                                                  • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:179
                                                                                                • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                  • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                    • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                    • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                      • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                        • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                      • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                            • Book::ActiveRecord_Relation#_update_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:73
                                                                                              • Book::ActiveRecord_Relation#substitute_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:95
                                                                                                • Enumerable#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:96
                                                                                                  • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:96
                                                                                                    • Book::ActiveRecord_Relation#block in substitute_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:96
                                                                                                      • Book.columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attributes.rb:97
                                                                                                      • #<Class:0x000055592d6f2990>#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:97
                                                                                                    • Book::ActiveRecord_Relation#block in substitute_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:96
                                                                                                      • Book.columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attributes.rb:97
                                                                                                      • #<Class:0x000055592d6f2990>#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:97
                                                                                                • Enumerable#each_with_index $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:100
                                                                                                • Enumerable#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:100
                                                                                                  • Enumerator#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:100
                                                                                                    • Enumerable#each_with_index $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:100
                                                                                                      • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:100
                                                                                                        • Book::ActiveRecord_Relation#block in substitute_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:100
                                                                                                          • Book.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                                                                                            • Book.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                                                                                              • Book.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                                                                                • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                  • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                    • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                    • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                • Book.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                  • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                              • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                                                                                                • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                                                                                  • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                                                                                    • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                  • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                                                                                                  • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                                                                                                    • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                                                                                                      • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                        • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                          • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#substitute_at $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:280
                                                                                                            • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:281
                                                                                                              • BasicObject#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:281
                                                                                                        • Book::ActiveRecord_Relation#block in substitute_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:100
                                                                                                          • Book.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                                                                                            • Book.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                                                                                              • Book.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                                                                                • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                  • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                    • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                    • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                • Book.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                  • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                              • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                                                                                                • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                                                                                  • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                                                                                    • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                  • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                                                                                                  • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                                                                                                    • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                                                                                                      • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                        • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                          • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#substitute_at $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:280
                                                                                                            • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:281
                                                                                                              • BasicObject#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:281
                                                                                              • Book.unscoped $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:32
                                                                                                • Kernel#block_given? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:33
                                                                                                • Book.relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:253
                                                                                                  • Book.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                  • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                    • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                      • Book.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                        • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                      • Book::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                  • Book.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                              • Book.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                              • Book.primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/primary_key.rb:72
                                                                                              • Book::ActiveRecord_Relation#where $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:568
                                                                                                • Hash#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:569
                                                                                                • Hash#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:571
                                                                                                • Book::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                  • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                    • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                      • Book::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                        • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                        • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                        • Book::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                • Book::ActiveRecord_Relation#where! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:578
                                                                                                  • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:579
                                                                                                  • Book::ActiveRecord_Relation#sanitize_for_mass_assignment $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/forbidden_attributes_protection.rb:19
                                                                                                    • Kernel#respond_to? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/forbidden_attributes_protection.rb:20
                                                                                                  • ActiveRecord::PredicateBuilder.references $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:91
                                                                                                    • Enumerable#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:92
                                                                                                      • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:92
                                                                                                        • ActiveRecord::PredicateBuilder.block in references $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:92
                                                                                                          • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:93
                                                                                                          • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:96
                                                                                                          • String#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:97
                                                                                                    • Array#compact $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:99
                                                                                                  • Book::ActiveRecord_Relation#references! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:202
                                                                                                    • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:203
                                                                                                    • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:204
                                                                                                    • Book::ActiveRecord_Relation#references_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                    • Array#| $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:206
                                                                                                    • Book::ActiveRecord_Relation#references_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                      • Book::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                  • Book::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                  • Book::ActiveRecord_Relation#build_where $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:947
                                                                                                    • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:949
                                                                                                    • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:949
                                                                                                    • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:951
                                                                                                    • ActiveRecord::PredicateBuilder.resolve_column_aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:8
                                                                                                      • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:11
                                                                                                      • Hash#keys $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:12
                                                                                                      • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:12
                                                                                                        • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:12
                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:12
                                                                                                    • Book::ActiveRecord_Relation#create_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:966
                                                                                                      • Enumerable#partition $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:967
                                                                                                        • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:967
                                                                                                          • Book::ActiveRecord_Relation#block in create_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:967
                                                                                                            • ActiveRecord::PredicateBuilder.can_be_bound? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:149
                                                                                                              • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:150
                                                                                                              • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:151
                                                                                                              • ActiveRecord::PredicateBuilder.handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:131
                                                                                                                • Enumerable#detect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                    • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                    • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                    • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                    • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                      • ActiveRecord::Base.=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:228
                                                                                                                        • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:229
                                                                                                                    • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                    • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                • Array#last $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                            • Book.columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attributes.rb:97
                                                                                                            • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:969
                                                                                                            • Hash#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:969
                                                                                                            • Book.reflect_on_aggregation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:61
                                                                                                              • Book.aggregate_reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                              • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:62
                                                                                                      • Enumerable#partition $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:973
                                                                                                        • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:973
                                                                                                      • Book::ActiveRecord_Relation#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:48
                                                                                                        • Book.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                                                                                          • Book.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                                                                                            • Book.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                                                                              • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                  • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                  • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                              • Book.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                            • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                                                                                              • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                                                                                • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                                                                                  • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                                                                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                              • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                                                                                                • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                                                                                                  • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                                                                                                    • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                      • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                        • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                        • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                      • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:982
                                                                                                        • Book::ActiveRecord_Relation#block in create_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:982
                                                                                                          • Book.columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attributes.rb:97
                                                                                                          • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:983
                                                                                                          • Array#push $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:983
                                                                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#substitute_at $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:280
                                                                                                            • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:281
                                                                                                              • BasicObject#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:281
                                                                                                      • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:987
                                                                                                      • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:994
                                                                                                    • Book::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                    • Book::ActiveRecord_Relation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                      • Book::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                    • Book.expand_hash_conditions_for_aggregates $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/sanitization.rb:56
                                                                                                      • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/sanitization.rb:58
                                                                                                        • Book.block in expand_hash_conditions_for_aggregates $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/sanitization.rb:58
                                                                                                          • String#to_sym $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/sanitization.rb:59
                                                                                                          • Book.reflect_on_aggregation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:61
                                                                                                            • Book.aggregate_reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                              • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                            • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:62
                                                                                                    • Book::ActiveRecord_Relation#add_relations_to_bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1166
                                                                                                      • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1167
                                                                                                      • Hash#each_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1168
                                                                                                        • Book::ActiveRecord_Relation#block in add_relations_to_bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1168
                                                                                                          • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1169
                                                                                                          • Book::ActiveRecord_Relation#add_relations_to_bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1166
                                                                                                            • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1167
                                                                                                    • ActiveRecord::PredicateBuilder.build_from_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:20
                                                                                                      • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:23
                                                                                                        • ActiveRecord::PredicateBuilder.block in build_from_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:23
                                                                                                          • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:26
                                                                                                          • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:38
                                                                                                          • String#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:40
                                                                                                          • ActiveRecord::PredicateBuilder.expand $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:52
                                                                                                            • Book._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                              • Book._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                              • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                                            • Arel::Table#[] $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:99
                                                                                                              • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                                • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                            • ActiveRecord::PredicateBuilder.build $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:126
                                                                                                              • ActiveRecord::PredicateBuilder.handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:131
                                                                                                                • Enumerable#detect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                    • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                    • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                    • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                    • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                      • ActiveRecord::Base.=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:228
                                                                                                                        • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:229
                                                                                                                    • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                    • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                • Array#last $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                              • ActiveRecord::PredicateBuilder.block in <class:PredicateBuilder> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:117
                                                                                                                • Arel::Attributes::Attribute#eq $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:15
                                                                                                                  • Arel::Attributes::Attribute#quoted_node $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:207
                                                                                                                    • Arel::Nodes.build_quoted $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:81
                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                  • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:16
                                                                                                                    • Arel::Nodes::Equality#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                      • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                          • Array#concat $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:45
                                                                                                  • Book::ActiveRecord_Relation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                    • Book::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                              • Book::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                              • Book::ActiveRecord_Relation#arel $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:857
                                                                                                • Book::ActiveRecord_Relation#build_arel $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:863
                                                                                                  • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:864
                                                                                                    • Arel::SelectManager#initialize $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:9
                                                                                                      • Arel::SelectManager#initialize $GemPath0/gems/arel-6.0.4/lib/arel/tree_manager.rb:11
                                                                                                      • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:11
                                                                                                        • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_statement.rb:7
                                                                                                          • Arel::Nodes::SelectCore#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_core.rb:7
                                                                                                            • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_core.rb:8
                                                                                                            • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_core.rb:9
                                                                                                              • Arel::Nodes::JoinSource#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/join_source.rb:9
                                                                                                                • Arel::Nodes::JoinSource#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                  • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                        • Arel::Nodes::SelectStatement#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_statement.rb:7
                                                                                                          • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_statement.rb:8
                                                                                                      • Array#last $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:12
                                                                                                      • Arel::SelectManager#from $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:87
                                                                                                        • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:88
                                                                                                        • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:91
                                                                                                  • Book::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                  • Book::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                  • Array#- $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:868
                                                                                                    • Arel::Nodes::Equality#eql? $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:22
                                                                                                      • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                                                      • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                                                  • Book::ActiveRecord_Relation#collapse_wheres $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:937
                                                                                                    • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:938
                                                                                                      • Book::ActiveRecord_Relation#block in collapse_wheres $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:938
                                                                                                        • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:939
                                                                                                    • Array#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                                                                      • Array#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:24
                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:944
                                                                                                      • Arel::Nodes::And#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/and.rb:6
                                                                                                        • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/and.rb:7
                                                                                                    • Arel::SelectManager#where $GemPath0/gems/arel-6.0.4/lib/arel/tree_manager.rb:38
                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/tree_manager.rb:39
                                                                                                  • Book::ActiveRecord_Relation#having_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                  • Book::ActiveRecord_Relation#limit_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                  • Book::ActiveRecord_Relation#offset_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                  • Book::ActiveRecord_Relation#group_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                  • Book::ActiveRecord_Relation#build_order $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1099
                                                                                                    • Book::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                    • Array#uniq $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1100
                                                                                                    • Array#reject! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1101
                                                                                                  • Book::ActiveRecord_Relation#build_select $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1057
                                                                                                    • Book::ActiveRecord_Relation#select_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                    • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1058
                                                                                                    • Book.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                    • Arel.star $GemPath0/gems/arel-6.0.4/lib/arel.rb:30
                                                                                                      • Arel.sql $GemPath0/gems/arel-6.0.4/lib/arel.rb:26
                                                                                                        • Class#new $GemPath0/gems/arel-6.0.4/lib/arel.rb:27
                                                                                                          • String#initialize $GemPath0/gems/arel-6.0.4/lib/arel.rb:27
                                                                                                    • Arel::Table#[] $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:99
                                                                                                      • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                        • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                    • Arel::SelectManager#project $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:132
                                                                                                      • Array#map $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:135
                                                                                                        • Arel::SelectManager#block in project $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:135
                                                                                                          • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                                                          • Array#include? $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                                                      • Array#concat $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:135
                                                                                                  • Book::ActiveRecord_Relation#distinct_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                  • Arel::SelectManager#distinct $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:149
                                                                                                  • Book::ActiveRecord_Relation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                  • Book::ActiveRecord_Relation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                              • Book.primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/primary_key.rb:72
                                                                                              • Arel::SelectManager#compile_update $GemPath0/gems/arel-6.0.4/lib/arel/crud.rb:5
                                                                                                • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/crud.rb:6
                                                                                                  • Arel::UpdateManager#initialize $GemPath0/gems/arel-6.0.4/lib/arel/update_manager.rb:3
                                                                                                    • Arel::UpdateManager#initialize $GemPath0/gems/arel-6.0.4/lib/arel/tree_manager.rb:11
                                                                                                    • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/update_manager.rb:5
                                                                                                      • Arel::Nodes::UpdateStatement#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/update_statement.rb:7
                                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/crud.rb:8
                                                                                                • Array#first $GemPath0/gems/arel-6.0.4/lib/arel/crud.rb:11
                                                                                                • Array#first $GemPath0/gems/arel-6.0.4/lib/arel/crud.rb:11
                                                                                                • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/crud.rb:11
                                                                                                • Arel::UpdateManager#key= $GemPath0/gems/arel-6.0.4/lib/arel/update_manager.rb:14
                                                                                                  • Arel::Nodes.build_quoted $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:81
                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:87
                                                                                                    • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:90
                                                                                                      • Arel::Nodes::Quoted#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/unary.rb:7
                                                                                                        • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/unary.rb:8
                                                                                                • Arel::UpdateManager#table $GemPath0/gems/arel-6.0.4/lib/arel/update_manager.rb:29
                                                                                                • Arel::UpdateManager#set $GemPath0/gems/arel-6.0.4/lib/arel/update_manager.rb:43
                                                                                                  • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/update_manager.rb:44
                                                                                                  • Array#map $GemPath0/gems/arel-6.0.4/lib/arel/update_manager.rb:47
                                                                                                    • Arel::UpdateManager#block in set $GemPath0/gems/arel-6.0.4/lib/arel/update_manager.rb:47
                                                                                                      • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/update_manager.rb:49
                                                                                                        • Arel::Nodes::UnqualifiedColumn#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/unary.rb:7
                                                                                                          • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/unary.rb:8
                                                                                                      • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/update_manager.rb:48
                                                                                                        • Arel::Nodes::Assignment#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                          • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                    • Arel::UpdateManager#block in set $GemPath0/gems/arel-6.0.4/lib/arel/update_manager.rb:47
                                                                                                      • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/update_manager.rb:49
                                                                                                        • Arel::Nodes::UnqualifiedColumn#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/unary.rb:7
                                                                                                          • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/unary.rb:8
                                                                                                      • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/update_manager.rb:48
                                                                                                        • Arel::Nodes::Assignment#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                          • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                • Arel::UpdateManager#order $GemPath0/gems/arel-6.0.4/lib/arel/update_manager.rb:22
                                                                                                • Arel::UpdateManager#wheres= $GemPath0/gems/arel-6.0.4/lib/arel/update_manager.rb:34
                                                                                              • Book.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                                                                                • Book.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                                                                                  • Book.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                                                                    • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                      • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                        • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                        • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                    • Book.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                      • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                  • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                                                                                    • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                                                                      • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                                                                        • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                      • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                    • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                                                                                      • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                                                                                        • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                                                                                          • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                            • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                              • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                              • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#update $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/query_cache.rb:12
                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#update $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:113
                                                                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#to_sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:10
                                                                                                    • Kernel#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:11
                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#collector $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:138
                                                                                                      • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:140
                                                                                                        • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#initialize $GemPath0/gems/arel-6.0.4/lib/arel/collectors/sql_string.rb:8
                                                                                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#initialize $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:4
                                                                                                    • Arel::Visitors::SQLite#accept $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:6
                                                                                                      • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                        • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                        • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                        • Arel::Visitors::SQLite#visit_Arel_Nodes_UpdateStatement $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:99
                                                                                                          • NilClass#nil? $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:100
                                                                                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Table $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:620
                                                                                                              • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:775
                                                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:776
                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:50
                                                                                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                    • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                    • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                          • Arel::Visitors::SQLite#inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:791
                                                                                                            • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                            • Enumerable#inject $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                              • Enumerator#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                  • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                    • Arel::Visitors::SQLite#block in inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                      • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                        • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                        • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                        • Arel::Visitors::SQLite#visit_Arel_Nodes_Assignment $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:659
                                                                                                                          • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:661
                                                                                                                          • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:661
                                                                                                                          • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:661
                                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Nodes_UnqualifiedColumn $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:704
                                                                                                                              • Arel::Nodes::UnqualifiedColumn#name $GemPath0/gems/arel-6.0.4/lib/arel/nodes/unqualified_column.rb:15
                                                                                                                                • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/nodes/unqualified_column.rb:16
                                                                                                                              • Arel::Visitors::SQLite#quote_column_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:780
                                                                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:781
                                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                  • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                  • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Nodes_BindParam $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:722
                                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#add_bind $GemPath0/gems/arel-6.0.4/lib/arel/collectors/sql_string.rb:13
                                                                                                                                • Arel::Visitors::SQLite#block in visit_Arel_Nodes_BindParam $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:723
                                                                                                                                • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                      • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                    • Arel::Visitors::SQLite#block in inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                      • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                        • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                        • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                        • Arel::Visitors::SQLite#visit_Arel_Nodes_Assignment $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:659
                                                                                                                          • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:661
                                                                                                                          • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:661
                                                                                                                          • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:661
                                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Nodes_UnqualifiedColumn $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:704
                                                                                                                              • Arel::Nodes::UnqualifiedColumn#name $GemPath0/gems/arel-6.0.4/lib/arel/nodes/unqualified_column.rb:15
                                                                                                                                • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/nodes/unqualified_column.rb:16
                                                                                                                              • Arel::Visitors::SQLite#quote_column_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:780
                                                                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:781
                                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                  • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                  • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Nodes_BindParam $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:722
                                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#add_bind $GemPath0/gems/arel-6.0.4/lib/arel/collectors/sql_string.rb:13
                                                                                                                                • Arel::Visitors::SQLite#block in visit_Arel_Nodes_BindParam $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:723
                                                                                                                                • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                          • Arel::Visitors::SQLite#inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:791
                                                                                                            • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                            • Enumerable#inject $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                              • Enumerator#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                  • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                    • Arel::Visitors::SQLite#block in inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                      • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                        • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                        • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                        • Arel::Visitors::SQLite#visit_Arel_Nodes_And $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:649
                                                                                                                          • Arel::Visitors::SQLite#inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:791
                                                                                                                            • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                            • Enumerable#inject $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                              • Enumerator#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                  • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                    • Arel::Visitors::SQLite#block in inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                      • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                        • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                        • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                        • Arel::Visitors::SQLite#visit_Arel_Nodes_Equality $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:672
                                                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Attributes_Attribute $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:709
                                                                                                                                              • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                                                              • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                                                              • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:775
                                                                                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:776
                                                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:50
                                                                                                                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                    • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                    • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                              • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:711
                                                                                                                                              • Arel::Visitors::SQLite#quote_column_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:780
                                                                                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:781
                                                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                  • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                  • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                          • Kernel#nil? $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:677
                                                                                                                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Nodes_BindParam $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:722
                                                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#add_bind $GemPath0/gems/arel-6.0.4/lib/arel/collectors/sql_string.rb:13
                                                                                                                                                • Arel::Visitors::SQLite#block in visit_Arel_Nodes_BindParam $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:723
                                                                                                                                                • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                    • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:13
                                                                                                      • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:13
                                                                                                        • Array#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:13
                                                                                                    • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#compile $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:133
                                                                                                      • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#compile $GemPath0/gems/arel-6.0.4/lib/arel/collectors/sql_string.rb:19
                                                                                                        • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#value $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:8
                                                                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#exec_delete $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:306
                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#exec_query $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:276
                                                                                                      • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:277
                                                                                                        • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in exec_query $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:277
                                                                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:23
                                                                                                            • Kernel#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:24
                                                                                                            • ActiveRecord::Type::Integer#type_cast_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:20
                                                                                                              • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:8
                                                                                                                • TrueClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:10
                                                                                                                • FalseClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:11
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:12
                                                                                                                • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:97
                                                                                                                  • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:98
                                                                                                                  • ActiveRecord::Type::Integer#cast_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:34
                                                                                                                    • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:39
                                                                                                              • ActiveRecord::Type::Integer#ensure_in_range $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:43
                                                                                                                • Range#cover? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                                                                  • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                                                                  • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:216
                                                                                                              • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:218
                                                                                                              • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:220
                                                                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:118
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:120
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:120
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:120
                                                                                                                • TrueClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:122
                                                                                                                • FalseClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:123
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:125
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:126
                                                                                                                • Time.=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:15
                                                                                                                  • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:16
                                                                                                                  • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:16
                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#types_which_need_no_typecasting $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:96
                                                                                                                • NilClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:127
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:127
                                                                                                        • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in exec_query $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:277
                                                                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:23
                                                                                                            • ActiveSupport::TimeWithZone#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:367
                                                                                                              • Symbol#to_sym $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:369
                                                                                                              • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:370
                                                                                                                • ActiveSupport::TimeWithZone#respond_to_missing? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:375
                                                                                                                  • Symbol#to_sym $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:376
                                                                                                                  • ActiveSupport::TimeWithZone#time $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:54
                                                                                                                    • ActiveSupport::TimeWithZone#period $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:68
                                                                                                                      • ActiveSupport::TimeZone#period_for_utc $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/values/time_zone.rb:411
                                                                                                                        • TZInfo::TimezoneProxy#period_for_utc $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/timezone_proxy.rb:29
                                                                                                                          • TZInfo::TimezoneProxy#real_timezone $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/timezone_proxy.rb:91
                                                                                                                          • TZInfo::DataTimezone#period_for_utc $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/data_timezone.rb:13
                                                                                                                            • TZInfo::DataTimezone#info $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/info_timezone.rb:22
                                                                                                                            • TZInfo::ZoneinfoTimezoneInfo#period_for_utc $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/transition_data_timezone_info.rb:79
                                                                                                                              • Class#new $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/transition_data_timezone_info.rb:115
                                                                                                                                • TZInfo::TimezonePeriod#initialize $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/timezone_period.rb:21
                                                                                                                    • TZInfo::TimezonePeriod#to_local $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/timezone_period.rb:202
                                                                                                                      • TZInfo::TimezoneOffset#to_local $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/timezone_offset.rb:62
                                                                                                                        • TZInfo::TimeOrDateTime.wrap $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/time_or_datetime.rb:320
                                                                                                                          • Kernel#is_a? $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/time_or_datetime.rb:321
                                                                                                                          • Class#new $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/time_or_datetime.rb:321
                                                                                                                            • TZInfo::TimeOrDateTime#initialize $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/time_or_datetime.rb:17
                                                                                                                              • Kernel#is_a? $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/time_or_datetime.rb:22
                                                                                                                              • TZInfo::RubyCoreSupport.time_nsec $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/ruby_core_support.rb:111
                                                                                                                                • Time#nsec $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/ruby_core_support.rb:112
                                                                                                                              • Kernel#Rational $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/time_or_datetime.rb:27
                                                                                                                                • Integer#integer? $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/time_or_datetime.rb:27
                                                                                                                                • Integer#integer? $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/time_or_datetime.rb:27
                                                                                                                              • Time#utc? $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/time_or_datetime.rb:29
                                                                                                                          • Kernel#block_given? $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/time_or_datetime.rb:323
                                                                                                                          • TZInfo::TimezoneOffset#block in to_local $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/timezone_offset.rb:63
                                                                                                                            • TZInfo::TimeOrDateTime#+ $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/time_or_datetime.rb:252
                                                                                                                          • Kernel#is_a? $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/time_or_datetime.rb:326
                                                                                                                          • Kernel#is_a? $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/time_or_datetime.rb:328
                                                                                                                          • TZInfo::TimeOrDateTime#to_time $GemPath0/gems/tzinfo-1.2.6/lib/tzinfo/time_or_datetime.rb:50
                                                                                                                  • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:377
                                                                                                            • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#type_cast_for_database -> block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                                              • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                                                • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /usr/local/lib/ruby/2.5.0/delegate.rb:392
                                                                                                                • ActiveRecord::Type::DateTime#type_cast_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/date_time.rb:10
                                                                                                                  • ActiveSupport::TimeWithZone#acts_like? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/acts_like.rb:7
                                                                                                                    • Symbol#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/acts_like.rb:8
                                                                                                                    • ActiveSupport::TimeWithZone#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:367
                                                                                                                      • Symbol#to_sym $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:369
                                                                                                                      • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:370
                                                                                                                  • ActiveRecord::Base.default_timezone $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                                                  • ActiveSupport::TimeWithZone#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:367
                                                                                                                    • Symbol#to_sym $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:369
                                                                                                                    • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:370
                                                                                                                  • ActiveSupport::TimeWithZone#utc $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:59
                                                                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:216
                                                                                                              • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:218
                                                                                                              • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:220
                                                                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:118
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:120
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:120
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:120
                                                                                                                • TrueClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:122
                                                                                                                • FalseClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:123
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:125
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:126
                                                                                                                • Time.=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:15
                                                                                                                  • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:16
                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quoted_date $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:245
                                                                                                                  • Kernel#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:246
                                                                                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quoted_date $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:82
                                                                                                                    • Time#acts_like? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/acts_like.rb:7
                                                                                                                      • Symbol#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/acts_like.rb:8
                                                                                                                      • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/acts_like.rb:8
                                                                                                                    • ActiveRecord::Base.default_timezone $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                                                    • Kernel#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:86
                                                                                                                    • Time#getutc $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:87
                                                                                                                    • Time#to_formatted_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/conversions.rb:48
                                                                                                                      • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/conversions.rb:50
                                                                                                                      • Time#strftime $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/conversions.rb:50
                                                                                                                  • Time#usec $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:247
                                                                                                                  • Kernel#sprintf $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:247
                                                                                                        • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in exec_query $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:277
                                                                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:23
                                                                                                            • Kernel#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:24
                                                                                                            • ActiveRecord::Type::Integer#type_cast_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:20
                                                                                                              • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:8
                                                                                                                • TrueClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:10
                                                                                                                • FalseClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:11
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:12
                                                                                                                • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:97
                                                                                                                  • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:98
                                                                                                                  • ActiveRecord::Type::Integer#cast_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:34
                                                                                                                    • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:39
                                                                                                              • ActiveRecord::Type::Integer#ensure_in_range $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:43
                                                                                                                • Range#cover? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                                                                  • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                                                                  • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:216
                                                                                                              • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:218
                                                                                                              • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:220
                                                                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:118
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:120
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:120
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:120
                                                                                                                • TrueClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:122
                                                                                                                • FalseClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:123
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:125
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:126
                                                                                                                • Time.=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:15
                                                                                                                  • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:16
                                                                                                                  • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:16
                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#types_which_need_no_typecasting $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:96
                                                                                                                • NilClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:127
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:127
                                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#log $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:477
                                                                                                        • Kernel#object_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:482
                                                                                                        • ActiveSupport::Notifications::Instrumenter#instrument $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:17
                                                                                                          • ActiveSupport::Notifications::Instrumenter#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:30
                                                                                                            • ActiveSupport::Notifications::Fanout#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:41
                                                                                                              • ActiveSupport::Notifications::Fanout#listeners_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:53
                                                                                                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                              • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:42
                                                                                                                • ActiveSupport::Notifications::Fanout#block in start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:42
                                                                                                                  • ActiveSupport::Notifications::Fanout::Subscribers::Evented#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:97
                                                                                                                    • ActiveRecord::LogSubscriber#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:78
                                                                                                                      • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                                                                                        • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                                                      • ActiveRecord::LogSubscriber#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:85
                                                                                                                        • #<Class:Time>#now $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:86
                                                                                                                          • Time#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:86
                                                                                                                        • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:86
                                                                                                                          • ActiveSupport::Notifications::Event#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:50
                                                                                                                            • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:52
                                                                                                                              • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:52
                                                                                                                                • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:52
                                                                                                                        • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:105
                                                                                                                          • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                            • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                            • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                          • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:121
                                                                                                                        • Array#last $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:87
                                                                                                                        • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:105
                                                                                                                          • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                            • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                            • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                          • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:121
                                                                                                                        • Array#push $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:90
                                                                                                                • ActiveSupport::Notifications::Fanout#block in start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:42
                                                                                                                  • ActiveSupport::Notifications::Fanout::Subscribers::Evented#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:97
                                                                                                                    • ActiveRecord::ExplainSubscriber#start $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/explain_subscriber.rb:6
                                                                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in log $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:484
                                                                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in exec_query $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:281
                                                                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#without_prepared_statement? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:494
                                                                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter::StatementPool#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:85
                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter::StatementPool#cache $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:103
                                                                                                              • SQLite3::Statement#reset! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:298
                                                                                                              • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:299
                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block (2 levels) in exec_query $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:299
                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block (2 levels) in exec_query $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:299
                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block (2 levels) in exec_query $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:299
                                                                                                              • SQLite3::Statement#bind_params $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:35
                                                                                                                • Array#flatten $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:37
                                                                                                                • Array#each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:37
                                                                                                                  • SQLite3::Statement#block in bind_params $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:37
                                                                                                                    • Module#=== $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:38
                                                                                                                    • SQLite3::Statement#bind_param $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:41
                                                                                                                  • SQLite3::Statement#block in bind_params $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:37
                                                                                                                    • Module#=== $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:38
                                                                                                                    • SQLite3::Statement#bind_param $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:41
                                                                                                                  • SQLite3::Statement#block in bind_params $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:37
                                                                                                                    • Module#=== $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:38
                                                                                                                    • SQLite3::Statement#bind_param $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:41
                                                                                                              • Enumerable#to_a $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:302
                                                                                                                • SQLite3::Statement#each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:106
                                                                                                                  • Kernel#loop $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                                                                                    • SQLite3::Statement#block in each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                                                                                      • SQLite3::Statement#step $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                                                        • SQLite3::Database#encoding $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                                                      • SQLite3::Statement#done? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:109
                                                                                                              • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:302
                                                                                                                • ActiveRecord::Result#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:38
                                                                                                          • ActiveSupport::Notifications::Instrumenter#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:35
                                                                                                            • ActiveSupport::Notifications::Fanout#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:45
                                                                                                              • ActiveSupport::Notifications::Fanout#listeners_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:53
                                                                                                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                              • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:46
                                                                                                                • ActiveSupport::Notifications::Fanout#block in finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:46
                                                                                                                  • ActiveSupport::Notifications::Fanout::Subscribers::Evented#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:101
                                                                                                                    • ActiveRecord::LogSubscriber#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:82
                                                                                                                      • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                                                                                        • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                                                      • ActiveRecord::LogSubscriber#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:93
                                                                                                                        • #<Class:Time>#now $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:94
                                                                                                                          • Time#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:94
                                                                                                                        • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:105
                                                                                                                          • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                            • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                            • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                          • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:121
                                                                                                                        • Array#pop $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:95
                                                                                                                        • Hash#merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:97
                                                                                                                        • String#split $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:99
                                                                                                                        • Array#first $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:99
                                                                                                                        • ActiveRecord::LogSubscriber#sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:37
                                                                                                                          • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:38
                                                                                                                          • ActiveRecord::LogSubscriber.runtime $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:9
                                                                                                                            • ActiveRecord::RuntimeRegistry.sql_runtime $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                              • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                          • ActiveSupport::Notifications::Event#duration $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:60
                                                                                                                            • Time#minus_with_coercion $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:249
                                                                                                                              • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:250
                                                                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:251
                                                                                                                              • Time#minus_with_duration $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:236
                                                                                                                                • ActiveSupport::Duration.=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/duration.rb:93
                                                                                                                                  • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/duration.rb:94
                                                                                                                                • Time#- $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:240
                                                                                                                                  • Integer#fdiv $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:240
                                                                                                                          • ActiveRecord::LogSubscriber.runtime= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:5
                                                                                                                            • ActiveRecord::RuntimeRegistry.sql_runtime= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:19
                                                                                                                              • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                          • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                                                                                            • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                                                          • ActiveSupport::Logger#debug? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:93
                                                                                                                            • ActiveSupport::Logger#level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:28
                                                                                                                              • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:16
                                                                                                                                • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:12
                                                                                                                                  • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                                                                                  • BasicObject#__id__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                                                                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                          • Array#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:43
                                                                                                                          • ActiveSupport::Notifications::Event#duration $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:60
                                                                                                                          • Float#round $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:45
                                                                                                                          • Float#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                            • Float#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                                              • Float#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                                                          • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:50
                                                                                                                            • ActiveRecord::LogSubscriber#block in sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:50
                                                                                                                              • ActiveRecord::LogSubscriber#render_bind $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:23
                                                                                                                                • ActiveRecord::ConnectionAdapters::Column#binary? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/column.rb:18
                                                                                                                                  • ActiveRecord::Type::Integer#binary? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:61
                                                                                                                            • ActiveRecord::LogSubscriber#block in sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:50
                                                                                                                              • ActiveRecord::LogSubscriber#render_bind $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:23
                                                                                                                                • ActiveRecord::ConnectionAdapters::Column#binary? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/column.rb:18
                                                                                                                                  • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#binary? -> block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                                                                    • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                                                                      • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /usr/local/lib/ruby/2.5.0/delegate.rb:392
                                                                                                                                      • ActiveRecord::Type::DateTime#binary? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:61
                                                                                                                            • ActiveRecord::LogSubscriber#block in sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:50
                                                                                                                              • ActiveRecord::LogSubscriber#render_bind $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:23
                                                                                                                                • ActiveRecord::ConnectionAdapters::Column#binary? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/column.rb:18
                                                                                                                                  • ActiveRecord::Type::Integer#binary? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:61
                                                                                                                          • Array#inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:52
                                                                                                                            • Array#inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:52
                                                                                                                              • String#inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:52
                                                                                                                              • Integer#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:52
                                                                                                                            • Array#inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:52
                                                                                                                              • String#inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:52
                                                                                                                              • String#inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:52
                                                                                                                            • Array#inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:52
                                                                                                                              • String#inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:52
                                                                                                                              • Integer#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:52
                                                                                                                          • ActiveRecord::LogSubscriber#odd? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:65
                                                                                                                          • ActiveRecord::LogSubscriber#color $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:102
                                                                                                                            • ActiveRecord::LogSubscriber#colorize_logging $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:67
                                                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:104
                                                                                                                          • ActiveRecord::LogSubscriber#debug $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:92
                                                                                                                            • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                                                                                              • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                                                            • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                                                                                              • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                                                            • ActiveSupport::Logger#debug /usr/local/lib/ruby/2.5.0/logger.rb:492
                                                                                                                              • ActiveSupport::Logger#add -> block (2 levels) in broadcast $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:25
                                                                                                                                • ActiveSupport::Logger#block (2 levels) in broadcast $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:25
                                                                                                                                  • ActiveSupport::Logger#add $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:86
                                                                                                                                    • Kernel#nil? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:87
                                                                                                                                    • ActiveSupport::Logger#level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:28
                                                                                                                                      • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:16
                                                                                                                                        • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:12
                                                                                                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                                                                                          • BasicObject#__id__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                    • ActiveSupport::Logger#add /usr/local/lib/ruby/2.5.0/logger.rb:455
                                                                                                                                      • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:457
                                                                                                                                      • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:460
                                                                                                                                      • NilClass#nil? /usr/local/lib/ruby/2.5.0/logger.rb:463
                                                                                                                                      • Kernel#block_given? /usr/local/lib/ruby/2.5.0/logger.rb:464
                                                                                                                                      • ActiveSupport::Logger#format_severity /usr/local/lib/ruby/2.5.0/logger.rb:579
                                                                                                                                      • #<Class:Time>#now /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                                                                                        • Time#initialize /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                                                                                      • ActiveSupport::Logger#format_message /usr/local/lib/ruby/2.5.0/logger.rb:583
                                                                                                                                        • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:102
                                                                                                                                          • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:103
                                                                                                                                      • Logger::LogDevice#write /usr/local/lib/ruby/2.5.0/logger.rb:686
                                                                                                                                        • Logger::LogDevice#mon_synchronize /usr/local/lib/ruby/2.5.0/monitor.rb:223
                                                                                                                                          • Logger::LogDevice#mon_enter /usr/local/lib/ruby/2.5.0/monitor.rb:183
                                                                                                                                            • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:184
                                                                                                                                            • Thread::Mutex#lock /usr/local/lib/ruby/2.5.0/monitor.rb:185
                                                                                                                                            • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:186
                                                                                                                                          • Logger::LogDevice#block in write /usr/local/lib/ruby/2.5.0/logger.rb:688
                                                                                                                                            • IO#write /usr/local/lib/ruby/2.5.0/logger.rb:697
                                                                                                                                          • Logger::LogDevice#mon_exit /usr/local/lib/ruby/2.5.0/monitor.rb:195
                                                                                                                                            • Logger::LogDevice#mon_check_owner /usr/local/lib/ruby/2.5.0/monitor.rb:259
                                                                                                                                              • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:260
                                                                                                                                            • Thread::Mutex#unlock /usr/local/lib/ruby/2.5.0/monitor.rb:200
                                                                                                                                  • ActiveSupport::Logger#add $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:86
                                                                                                                                    • Kernel#nil? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:87
                                                                                                                                    • ActiveSupport::Logger#level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:28
                                                                                                                                      • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:16
                                                                                                                                        • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:12
                                                                                                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                                                                                          • BasicObject#__id__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                    • ActiveSupport::Logger#add /usr/local/lib/ruby/2.5.0/logger.rb:455
                                                                                                                                      • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:457
                                                                                                                                      • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:460
                                                                                                                                      • NilClass#nil? /usr/local/lib/ruby/2.5.0/logger.rb:463
                                                                                                                                      • Kernel#block_given? /usr/local/lib/ruby/2.5.0/logger.rb:464
                                                                                                                                      • ActiveSupport::Logger#format_severity /usr/local/lib/ruby/2.5.0/logger.rb:579
                                                                                                                                      • #<Class:Time>#now /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                                                                                        • Time#initialize /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                                                                                      • ActiveSupport::Logger#format_message /usr/local/lib/ruby/2.5.0/logger.rb:583
                                                                                                                                        • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:20
                                                                                                                                          • ActiveSupport::Logger::SimpleFormatter#tags_text $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:50
                                                                                                                                            • ActiveSupport::Logger::SimpleFormatter#current_tags $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:45
                                                                                                                                              • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:46
                                                                                                                                              • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:46
                                                                                                                                            • Array#any? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:52
                                                                                                                                          • NilClass#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:21
                                                                                                                                          • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:102
                                                                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:103
                                                                                                                                      • Logger::LogDevice#write /usr/local/lib/ruby/2.5.0/logger.rb:686
                                                                                                                                        • Logger::LogDevice#mon_synchronize /usr/local/lib/ruby/2.5.0/monitor.rb:223
                                                                                                                                          • Logger::LogDevice#mon_enter /usr/local/lib/ruby/2.5.0/monitor.rb:183
                                                                                                                                            • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:184
                                                                                                                                            • Thread::Mutex#lock /usr/local/lib/ruby/2.5.0/monitor.rb:185
                                                                                                                                            • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:186
                                                                                                                                          • Logger::LogDevice#block in write /usr/local/lib/ruby/2.5.0/logger.rb:688
                                                                                                                                            • IO#write /usr/local/lib/ruby/2.5.0/logger.rb:697
                                                                                                                                          • Logger::LogDevice#mon_exit /usr/local/lib/ruby/2.5.0/monitor.rb:195
                                                                                                                                            • Logger::LogDevice#mon_check_owner /usr/local/lib/ruby/2.5.0/monitor.rb:259
                                                                                                                                              • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:260
                                                                                                                                            • Thread::Mutex#unlock /usr/local/lib/ruby/2.5.0/monitor.rb:200
                                                                                                                • ActiveSupport::Notifications::Fanout#block in finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:46
                                                                                                                  • ActiveSupport::Notifications::Fanout::Subscribers::Evented#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:101
                                                                                                                    • ActiveRecord::ExplainSubscriber#finish $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/explain_subscriber.rb:10
                                                                                                                      • ActiveRecord::ExplainRegistry.collect? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:50
                                                                                                                        • ActiveRecord::ExplainRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                          • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                        • ActiveRecord::ExplainRegistry#collect? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/explain_registry.rb:21
                                                                                                    • SQLite3::Database#changes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:308
                                                                                • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:506
                                                                                  • ActiveSupport::Callbacks::CallbackSequence#block in call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:506
                                                                                    • ActiveSupport::Callbacks::Filters::After.block in halting_and_conditional $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:222
                                                                                      • ActiveSupport::Callbacks::Filters::Environment#target $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:223
                                                                                      • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:224
                                                                                      • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:225
                                                                                      • Enumerable#all? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:227
                                                                                        • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:227
                                                                                          • ActiveSupport::Callbacks::Filters::After.block (2 levels) in halting_and_conditional $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:227
                                                                                            • ActiveSupport::Callbacks::Conditionals::Value#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:107
                                                                                              • Book.block (2 levels) in _define_after_model_callback $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:141
                                                                                                • BasicObject#!= $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:142
                                                                                                  • Integer#== $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:142
                                                                                                    • BasicObject#== $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:142
                                                                                      • ActiveSupport::Callbacks::Callback#block in make_lambda $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:432
                                                                                        • Book#autosave_associated_records_for_taggings -> block in define_non_cyclic_method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:151
                                                                                          • Book#block in define_non_cyclic_method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:151
                                                                                            • BasicObject#instance_eval $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:157
                                                                                              • Book#block in add_autosave_association_callbacks $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:184
                                                                                                • Book#save_collection_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:353
                                                                                                  • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                                                  • Book#associated_records_to_validate_or_save $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:270
                                                                                                    • Enumerable#find_all $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:276
                                                                                                      • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:276
                                                                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:364
                                                                                                  • Kernel#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:384
                                                                                                  • ActiveRecord::Associations::HasManyAssociation#reset_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:101
                                                                                  • ActiveSupport::Callbacks::CallbackSequence#block in call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:506
                                                                                    • ActiveSupport::Callbacks::Filters::After.block in halting_and_conditional $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:222
                                                                                      • ActiveSupport::Callbacks::Filters::Environment#target $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:223
                                                                                      • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:224
                                                                                      • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:225
                                                                                      • Enumerable#all? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:227
                                                                                        • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:227
                                                                                          • ActiveSupport::Callbacks::Filters::After.block (2 levels) in halting_and_conditional $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:227
                                                                                            • ActiveSupport::Callbacks::Conditionals::Value#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:107
                                                                                              • Book.block (2 levels) in _define_after_model_callback $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:141
                                                                                                • BasicObject#!= $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:142
                                                                                                  • Integer#== $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:142
                                                                                                    • BasicObject#== $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:142
                                                                                      • ActiveSupport::Callbacks::Callback#block in make_lambda $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:432
                                                                                        • Book#autosave_associated_records_for_base_tags -> block in define_non_cyclic_method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:151
                                                                                          • Book#block in define_non_cyclic_method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:151
                                                                                            • BasicObject#instance_eval $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:157
                                                                                              • Book#block in add_autosave_association_callbacks $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:184
                                                                                                • Book#save_collection_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:353
                                                                                                  • ActiveRecord::Reflection::ThroughReflection#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                  • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                                  • ActiveSupport::Callbacks::CallbackSequence#block in call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:506
                                                                                    • ActiveSupport::Callbacks::Filters::After.block in halting_and_conditional $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:222
                                                                                      • ActiveSupport::Callbacks::Filters::Environment#target $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:223
                                                                                      • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:224
                                                                                      • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:225
                                                                                      • Enumerable#all? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:227
                                                                                        • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:227
                                                                                          • ActiveSupport::Callbacks::Filters::After.block (2 levels) in halting_and_conditional $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:227
                                                                                            • ActiveSupport::Callbacks::Conditionals::Value#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:107
                                                                                              • Book.block (2 levels) in _define_after_model_callback $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:141
                                                                                                • BasicObject#!= $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:142
                                                                                                  • Integer#== $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:142
                                                                                                    • BasicObject#== $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:142
                                                                                      • ActiveSupport::Callbacks::Callback#block in make_lambda $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:432
                                                                                        • Book#autosave_associated_records_for_tag_taggings -> block in define_non_cyclic_method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:151
                                                                                          • Book#block in define_non_cyclic_method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:151
                                                                                            • BasicObject#instance_eval $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:157
                                                                                              • Book#block in add_autosave_association_callbacks $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:184
                                                                                                • Book#save_collection_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:353
                                                                                                  • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                                  • ActiveSupport::Callbacks::CallbackSequence#block in call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:506
                                                                                    • ActiveSupport::Callbacks::Filters::After.block in halting_and_conditional $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:222
                                                                                      • ActiveSupport::Callbacks::Filters::Environment#target $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:223
                                                                                      • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:224
                                                                                      • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:225
                                                                                      • Enumerable#all? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:227
                                                                                        • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:227
                                                                                          • ActiveSupport::Callbacks::Filters::After.block (2 levels) in halting_and_conditional $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:227
                                                                                            • ActiveSupport::Callbacks::Conditionals::Value#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:107
                                                                                              • Book.block (2 levels) in _define_after_model_callback $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:141
                                                                                                • BasicObject#!= $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:142
                                                                                                  • Integer#== $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:142
                                                                                                    • BasicObject#== $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:142
                                                                                      • ActiveSupport::Callbacks::Callback#block in make_lambda $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:432
                                                                                        • Book#autosave_associated_records_for_tags -> block in define_non_cyclic_method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:151
                                                                                          • Book#block in define_non_cyclic_method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:151
                                                                                            • BasicObject#instance_eval $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:157
                                                                                              • Book#block in add_autosave_association_callbacks $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:184
                                                                                                • Book#save_collection_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/autosave_association.rb:353
                                                                                                  • ActiveRecord::Reflection::ThroughReflection#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                  • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                              • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:92
                                                                      • BasicObject#!= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:505
                                                                        • Integer#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:505
                                                                          • BasicObject#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:505
                                                              • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:506
                                                                • ActiveSupport::Callbacks::CallbackSequence#block in call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:506
                                                                  • ActiveSupport::Callbacks::Filters::After.block in halting_and_conditional $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:222
                                                                    • ActiveSupport::Callbacks::Filters::Environment#target $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:223
                                                                    • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:224
                                                                    • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:225
                                                                    • Enumerable#all? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:227
                                                                      • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:227
                                                                        • ActiveSupport::Callbacks::Filters::After.block (2 levels) in halting_and_conditional $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:227
                                                                          • ActiveSupport::Callbacks::Conditionals::Value#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:107
                                                                            • Book.block (2 levels) in _define_after_model_callback $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:141
                                                                    • ActiveSupport::Callbacks::Callback#block in make_lambda $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:432
                                                                      • Book#save_tags $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:226
                                                                        • Book#tagging_contexts $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:189
                                                                          • Kernel#class $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:190
                                                                          • Book.tag_types -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                            • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                          • Array#map $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:190
                                                                            • Symbol#to_s $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:190
                                                                          • Book#custom_contexts $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:110
                                                                        • Array#each $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:227
                                                                          • Book#block in save_tags $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:227
                                                                            • Book#tag_list_cache_set_on $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:126
                                                                              • String#to_s $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:127
                                                                              • String#singularize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/string/inflections.rb:54
                                                                                • ActiveSupport::Inflector.singularize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:48
                                                                                  • ActiveSupport::Inflector.inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:203
                                                                                    • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:204
                                                                                    • ActiveSupport::Inflector::Inflections.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:30
                                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                  • ActiveSupport::Inflector.apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:372
                                                                                    • String#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:373
                                                                                    • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:373
                                                                                      • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:373
                                                                                        • String#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:373
                                                                                    • ActiveSupport::Inflector.inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:203
                                                                                      • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:204
                                                                                      • ActiveSupport::Inflector::Inflections.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:30
                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                    • String#downcase $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:375
                                                                                    • String#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:375
                                                                                    • Array#include? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:375
                                                                                    • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                              • Kernel#instance_variable_defined? $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:128
                                                                • ActiveSupport::Callbacks::CallbackSequence#block in call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:506
                                                                  • ActiveSupport::Callbacks::Filters::After.block in halting_and_conditional $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:222
                                                                    • ActiveSupport::Callbacks::Filters::Environment#target $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:223
                                                                    • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:224
                                                                    • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:225
                                                                    • Enumerable#all? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:227
                                                                      • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:227
                                                                        • ActiveSupport::Callbacks::Filters::After.block (2 levels) in halting_and_conditional $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:227
                                                                          • ActiveSupport::Callbacks::Conditionals::Value#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:107
                                                                            • Book.block (2 levels) in _define_after_model_callback $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/callbacks.rb:141
                                                                    • ActiveSupport::Callbacks::Callback#block in make_lambda $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:432
                                                                      • Book#save_owned_tags $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/ownership.rb:88
                                                                        • Book#tagging_contexts $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:189
                                                                          • Kernel#class $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:190
                                                                          • Book.tag_types -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                            • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                          • Array#map $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:190
                                                                            • Symbol#to_s $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:190
                                                                          • Book#custom_contexts $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:110
                                                                        • Array#each $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/ownership.rb:89
                                                                          • Book#block in save_owned_tags $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/ownership.rb:89
                                                                            • Book#cached_owned_tag_list_on $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/ownership.rb:59
                                                                              • Kernel#instance_variable_defined? $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/ownership.rb:61
                                                                              • Kernel#instance_variable_get $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/ownership.rb:61
                                                                            • Hash#each $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/ownership.rb:90
                                                            • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:92
                                                  • Book#changes_applied $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:47
                                                    • Book#changes_applied $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:201
                                                      • Book#changes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:67
                                                        • Book#cache_changed_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:179
                                                          • Book#changed_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:57
                                                            • Book#changed_attributes $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:171
                                                            • Book#attributes_changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:146
                                                              • Book#changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:153
                                                                • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                • Book.attribute_names $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:186
                                                                • Array#select $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                  • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                    • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                      • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                        • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                        • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                      • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                        • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                      • ActiveRecord::Attribute::FromDatabase#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                        • ActiveRecord::Attribute::FromDatabase#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                        • ActiveRecord::Type::Integer#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:79
                                                                  • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                    • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                      • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                        • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                        • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                      • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                        • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                      • ActiveRecord::Attribute::FromDatabase#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                        • ActiveRecord::Attribute::FromDatabase#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                        • ActiveRecord::Type::String#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:8
                                                                          • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:9
                                                                  • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                    • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                      • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                        • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                        • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                      • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                        • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                      • ActiveRecord::Attribute::FromDatabase#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                        • ActiveRecord::Attribute::FromDatabase#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                        • ActiveRecord::Type::Text#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:8
                                                                          • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:9
                                                                  • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                    • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                      • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                        • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                        • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                      • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                        • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                      • ActiveRecord::Attribute::FromUser#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                        • ActiveRecord::Attribute::FromUser#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                        • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                        • ActiveRecord::Type::Integer#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:79
                                                                  • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                    • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                      • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                        • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                        • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                      • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                        • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                      • ActiveRecord::Attribute::FromDatabase#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                        • ActiveRecord::Attribute::FromDatabase#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                        • ActiveRecord::Type::Integer#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:79
                                                                  • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                    • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                      • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                        • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                        • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                      • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                        • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                      • ActiveRecord::Attribute::FromDatabase#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                        • ActiveRecord::Attribute::FromDatabase#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                        • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#changed_in_place? -> block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                          • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                            • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /usr/local/lib/ruby/2.5.0/delegate.rb:392
                                                                            • ActiveRecord::Type::DateTime#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:79
                                                                  • Book#block in changed_in_place $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:154
                                                                    • Book#attribute_changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:73
                                                                      • Book#original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:159
                                                                        • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                                        • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:160
                                                                      • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                        • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                      • ActiveRecord::Attribute::FromUser#changed_in_place_from? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:53
                                                                        • ActiveRecord::Attribute::FromUser#has_been_read? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:98
                                                                        • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                        • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#changed_in_place? -> block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                          • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                            • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /usr/local/lib/ruby/2.5.0/delegate.rb:392
                                                                            • ActiveRecord::Type::DateTime#changed_in_place? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:79
                                                              • Enumerable#each_with_object $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:147
                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:147
                                                            • ActiveSupport::HashWithIndifferentAccess#reverse_merge $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:208
                                                              • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:209
                                                              • ActiveSupport::HashWithIndifferentAccess.new_from_hash_copying_default $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:75
                                                                • Hash#to_hash $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:76
                                                                • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:77
                                                                  • ActiveSupport::HashWithIndifferentAccess#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:58
                                                                    • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:59
                                                                    • Hash#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:60
                                                                    • ActiveSupport::HashWithIndifferentAccess#update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:127
                                                                      • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:128
                                                                      • Hash#to_hash $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:131
                                                                      • Hash#each_pair $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:131
                                                                • Kernel#tap $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:77
                                                                  • ActiveSupport::HashWithIndifferentAccess.block in new_from_hash_copying_default $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:77
                                                                    • Hash#default $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:78
                                                                    • Hash#default= $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:78
                                                                    • Hash#default_proc $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:79
                                                              • ActiveSupport::HashWithIndifferentAccess#reverse_merge $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/reverse_merge.rb:12
                                                                • ActiveSupport::HashWithIndifferentAccess#merge $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:198
                                                                  • ActiveSupport::HashWithIndifferentAccess#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:189
                                                                    • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:190
                                                                    • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:190
                                                                      • ActiveSupport::HashWithIndifferentAccess#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:58
                                                                        • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:59
                                                                        • Hash#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:60
                                                                        • ActiveSupport::HashWithIndifferentAccess#update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:127
                                                                          • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:128
                                                                          • Hash#update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:129
                                                                    • Kernel#tap $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:190
                                                                      • ActiveSupport::HashWithIndifferentAccess#block in dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:190
                                                                        • ActiveSupport::HashWithIndifferentAccess#set_defaults $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:290
                                                                          • Hash#default_proc $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:291
                                                                          • ActiveSupport::HashWithIndifferentAccess#default $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:67
                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:68
                                                                            • Hash#default $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:71
                                                                          • Hash#default= $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:294
                                                                  • ActiveSupport::HashWithIndifferentAccess#update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:127
                                                                    • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:128
                                                                    • Hash#update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:129
                                                            • Kernel#freeze $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:63
                                                          • Book#block in changes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:68
                                                            • Book#changes $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:151
                                                              • Book#changed $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:141
                                                                • Book#changed_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:57
                                                                • Hash#keys $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:142
                                                              • Array#map $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:152
                                                                • Book#block in changes $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:152
                                                                  • Book#attribute_change $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:222
                                                                    • Book#attribute_changed? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:176
                                                                      • Book#changes_include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:80
                                                                        • Book#changes_include? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:195
                                                                          • Book#changed_attributes $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:171
                                                                          • ActiveSupport::HashWithIndifferentAccess#key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:149
                                                                            • ActiveSupport::HashWithIndifferentAccess#convert_key $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:269
                                                                              • Kernel#kind_of? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:270
                                                                            • Hash#key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:150
                                                                      • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:178
                                                                      • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:179
                                                                    • Book#changed_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:57
                                                                    • Hash#[] $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:223
                                                                    • Book#__temp__97561627 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                      • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                          • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                • Book#block in changes $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:152
                                                                  • Book#attribute_change $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:222
                                                                    • Book#attribute_changed? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:176
                                                                      • Book#changes_include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:80
                                                                        • Book#changes_include? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:195
                                                                          • Book#changed_attributes $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:171
                                                                          • ActiveSupport::HashWithIndifferentAccess#key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:149
                                                                            • ActiveSupport::HashWithIndifferentAccess#convert_key $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:269
                                                                              • Kernel#kind_of? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:270
                                                                            • Hash#key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:150
                                                                      • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:178
                                                                      • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:179
                                                                    • Book#changed_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:57
                                                                    • Hash#[] $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:223
                                                                    • Book#__temp__57074616475646f51647 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                      • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                          • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                              • ActiveSupport::HashWithIndifferentAccess.[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:83
                                                                • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:84
                                                                  • ActiveSupport::HashWithIndifferentAccess#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:58
                                                                    • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:59
                                                                    • Hash#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:60
                                                                    • ActiveSupport::HashWithIndifferentAccess#update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:127
                                                                      • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:128
                                                                      • Hash#to_hash $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:131
                                                                      • Hash#each_pair $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:131
                                                                • #<Class:Hash>#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:84
                                                                • ActiveSupport::HashWithIndifferentAccess#update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:127
                                                                  • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:128
                                                                  • Hash#to_hash $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:131
                                                                  • Hash#each_pair $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:131
                                                                    • ActiveSupport::HashWithIndifferentAccess#block in update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:131
                                                                      • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:132
                                                                      • ActiveSupport::HashWithIndifferentAccess#convert_key $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:269
                                                                        • Kernel#kind_of? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:270
                                                                      • ActiveSupport::HashWithIndifferentAccess#convert_value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:273
                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:274
                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:280
                                                                        • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:282
                                                                          • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:282
                                                                            • Array#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:282
                                                                        • Array#map! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:284
                                                                          • ActiveSupport::HashWithIndifferentAccess#block in convert_value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:284
                                                                            • ActiveSupport::HashWithIndifferentAccess#convert_value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:273
                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:274
                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:280
                                                                          • ActiveSupport::HashWithIndifferentAccess#block in convert_value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:284
                                                                            • ActiveSupport::HashWithIndifferentAccess#convert_value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:273
                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:274
                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:280
                                                                      • ActiveSupport::HashWithIndifferentAccess#[]= $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:135
                                                                    • ActiveSupport::HashWithIndifferentAccess#block in update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:131
                                                                      • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:132
                                                                      • ActiveSupport::HashWithIndifferentAccess#convert_key $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:269
                                                                        • Kernel#kind_of? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:270
                                                                      • ActiveSupport::HashWithIndifferentAccess#convert_value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:273
                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:274
                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:280
                                                                        • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:282
                                                                          • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:282
                                                                            • Array#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:282
                                                                        • Array#map! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:284
                                                                          • ActiveSupport::HashWithIndifferentAccess#block in convert_value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:284
                                                                            • ActiveSupport::HashWithIndifferentAccess#convert_value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:273
                                                                              • ActiveSupport::TimeWithZone#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:346
                                                                                • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:347
                                                                              • ActiveSupport::TimeWithZone#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:346
                                                                                • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:347
                                                                          • ActiveSupport::HashWithIndifferentAccess#block in convert_value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:284
                                                                            • ActiveSupport::HashWithIndifferentAccess#convert_value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:273
                                                                              • ActiveSupport::TimeWithZone#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:346
                                                                                • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:347
                                                                              • ActiveSupport::TimeWithZone#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:346
                                                                                • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:347
                                                                      • ActiveSupport::HashWithIndifferentAccess#[]= $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:135
                                                          • Book#clear_changed_attributes_cache $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:186
                                                            • Kernel#remove_instance_variable $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:187
                                                      • Class#new $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/dirty.rb:203
                                                        • ActiveSupport::HashWithIndifferentAccess#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:58
                                                          • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:59
                                                          • Hash#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:60
                                                          • ActiveSupport::HashWithIndifferentAccess#update $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:127
                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:128
                                                            • Hash#to_hash $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:131
                                                            • Hash#each_pair $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/hash_with_indifferent_access.rb:131
                                                    • Book#store_original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:173
                                                      • Book#attribute_names $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:271
                                                        • ActiveRecord::AttributeSet#keys $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:26
                                                          • ActiveRecord::LazyAttributeHash#initialized_keys $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:50
                                                            • Hash#keys $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:51
                                                            • Hash#keys $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:51
                                                            • Array#| $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:51
                                                      • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:174
                                                        • Book#block in store_original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:174
                                                          • Book#store_original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:169
                                                            • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                            • ActiveRecord::Attribute::FromDatabase#value_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:45
                                                              • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                              • ActiveRecord::Type::Integer#type_cast_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:20
                                                                • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:8
                                                                  • TrueClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:10
                                                                  • FalseClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:11
                                                                  • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:12
                                                                  • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:97
                                                                    • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:98
                                                                    • ActiveRecord::Type::Integer#cast_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:34
                                                                      • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:39
                                                                • ActiveRecord::Type::Integer#ensure_in_range $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:43
                                                                  • Range#cover? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                    • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                    • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                        • Book#block in store_original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:174
                                                          • Book#store_original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:169
                                                            • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                            • ActiveRecord::Attribute::FromDatabase#value_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:45
                                                              • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                              • ActiveRecord::Type::String#type_cast_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:14
                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:16
                                                                • ActiveSupport::Duration.=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/duration.rb:93
                                                                  • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/duration.rb:94
                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:17
                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:17
                                                                  • String#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:17
                                                        • Book#block in store_original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:174
                                                          • Book#store_original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:169
                                                            • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                            • ActiveRecord::Attribute::FromDatabase#value_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:45
                                                              • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                              • ActiveRecord::Type::Text#type_cast_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:14
                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:16
                                                                • ActiveSupport::Duration.=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/duration.rb:93
                                                                  • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/duration.rb:94
                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:17
                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:17
                                                                  • String#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:17
                                                        • Book#block in store_original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:174
                                                          • Book#store_original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:169
                                                            • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                            • ActiveRecord::Attribute::FromUser#value_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:45
                                                              • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                              • ActiveRecord::Type::Integer#type_cast_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:20
                                                                • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:8
                                                                  • TrueClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:10
                                                                  • FalseClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:11
                                                                  • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:12
                                                                  • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:97
                                                                    • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:98
                                                                    • ActiveRecord::Type::Integer#cast_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:34
                                                                      • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:39
                                                                • ActiveRecord::Type::Integer#ensure_in_range $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:43
                                                                  • Range#cover? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                    • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                    • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                        • Book#block in store_original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:174
                                                          • Book#store_original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:169
                                                            • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                            • ActiveRecord::Attribute::FromDatabase#value_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:45
                                                              • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                              • ActiveRecord::Type::Integer#type_cast_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:20
                                                                • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:8
                                                                  • TrueClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:10
                                                                  • FalseClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:11
                                                                  • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:12
                                                                  • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:97
                                                                    • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:98
                                                                    • ActiveRecord::Type::Integer#cast_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:34
                                                                      • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:39
                                                                • ActiveRecord::Type::Integer#ensure_in_range $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:43
                                                                  • Range#cover? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                    • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                    • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                        • Book#block in store_original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:174
                                                          • Book#store_original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:169
                                                            • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                            • ActiveRecord::Attribute::FromDatabase#value_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:45
                                                              • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                              • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#type_cast_for_database -> block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                  • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /usr/local/lib/ruby/2.5.0/delegate.rb:392
                                                                  • ActiveRecord::Type::DateTime#type_cast_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/date_time.rb:10
                                                                    • ActiveSupport::TimeWithZone#acts_like? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/acts_like.rb:7
                                                                      • Symbol#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/acts_like.rb:8
                                                                      • ActiveSupport::TimeWithZone#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:367
                                                                        • Symbol#to_sym $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:369
                                                                        • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:370
                                                                    • ActiveRecord::Base.default_timezone $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                    • ActiveSupport::TimeWithZone#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:367
                                                                      • Symbol#to_sym $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:369
                                                                      • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:370
                                                                    • ActiveSupport::TimeWithZone#utc $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:59
                                                        • Book#block in store_original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:174
                                                          • Book#store_original_raw_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:169
                                                            • Book#original_raw_attributes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/dirty.rb:165
                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                            • ActiveRecord::Attribute::FromUser#value_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:45
                                                              • ActiveRecord::Attribute::FromUser#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                              • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#type_cast_for_database -> block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                  • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /usr/local/lib/ruby/2.5.0/delegate.rb:392
                                                                  • ActiveRecord::Type::DateTime#type_cast_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/date_time.rb:10
                                                                    • ActiveSupport::TimeWithZone#acts_like? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/acts_like.rb:7
                                                                      • Symbol#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/acts_like.rb:8
                                                                      • ActiveSupport::TimeWithZone#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:367
                                                                        • Symbol#to_sym $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:369
                                                                        • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:370
                                                                    • ActiveRecord::Base.default_timezone $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                    • ActiveSupport::TimeWithZone#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:367
                                                                      • Symbol#to_sym $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:369
                                                                      • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:370
                                                                    • ActiveSupport::TimeWithZone#utc $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/time_with_zone.rb:59
                                    • Book#clear_transaction_record_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:380
                                      • Hash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:381
                                      • Hash#[]= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:381
                                      • Hash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:382
                          • #<Class:Thread>#current $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:190
                          • Thread#status $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:190
                          • ActiveRecord::ConnectionAdapters::TransactionManager#commit_transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:174
                            • Array#pop $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:175
                            • ActiveRecord::ConnectionAdapters::RealTransaction#commit $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:150
                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#commit_db_transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:344
                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#log $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:477
                                  • Kernel#object_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:482
                                  • ActiveSupport::Notifications::Instrumenter#instrument $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:17
                                    • ActiveSupport::Notifications::Instrumenter#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:30
                                      • ActiveSupport::Notifications::Fanout#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:41
                                        • ActiveSupport::Notifications::Fanout#listeners_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:53
                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                        • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:42
                                          • ActiveSupport::Notifications::Fanout#block in start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:42
                                            • ActiveSupport::Notifications::Fanout::Subscribers::Evented#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:97
                                              • ActiveRecord::LogSubscriber#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:78
                                                • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                  • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                • ActiveRecord::LogSubscriber#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:85
                                                  • #<Class:Time>#now $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:86
                                                    • Time#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:86
                                                  • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:86
                                                    • ActiveSupport::Notifications::Event#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:50
                                                      • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:52
                                                        • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:52
                                                          • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:52
                                                  • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:105
                                                    • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                      • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                      • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                    • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:121
                                                  • Array#last $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:87
                                                  • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:105
                                                    • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                      • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                      • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                    • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:121
                                                  • Array#push $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:90
                                          • ActiveSupport::Notifications::Fanout#block in start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:42
                                            • ActiveSupport::Notifications::Fanout::Subscribers::Evented#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:97
                                              • ActiveRecord::ExplainSubscriber#start $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/explain_subscriber.rb:6
                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in log $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:484
                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in commit_db_transaction $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:345
                                        • SQLite3::Database#commit $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:517
                                          • SQLite3::Database#execute $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:122
                                            • Kernel#nil? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:123
                                            • SQLite3::Database#prepare $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:90
                                              • Class#new $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:91
                                                • SQLite3::Statement#initialize $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:91
                                              • Kernel#block_given? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:92
                                              • SQLite3::Database#block in execute $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:137
                                                • SQLite3::Statement#bind_params $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:35
                                                  • Array#flatten $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:37
                                                  • Array#each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:37
                                                • SQLite3::Statement#columns $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:101
                                                  • SQLite3::Statement#get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:135
                                                    • SQLite3::Statement#column_count $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                    • Class#new $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                      • Array#initialize $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                    • SQLite3::Statement#column_count $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                    • Class#new $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                      • Array#initialize $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                • Kernel#block_given? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:142
                                                • Enumerable#map $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:152
                                                  • SQLite3::Statement#each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:106
                                                    • Kernel#loop $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                      • SQLite3::Statement#block in each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                        • SQLite3::Statement#step $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                          • SQLite3::Database#encoding $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                        • SQLite3::Statement#done? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:109
                                              • SQLite3::Statement#closed? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:97
                                              • SQLite3::Statement#close $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:97
                                    • ActiveSupport::Notifications::Instrumenter#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:35
                                      • ActiveSupport::Notifications::Fanout#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:45
                                        • ActiveSupport::Notifications::Fanout#listeners_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:53
                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                        • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:46
                                          • ActiveSupport::Notifications::Fanout#block in finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:46
                                            • ActiveSupport::Notifications::Fanout::Subscribers::Evented#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:101
                                              • ActiveRecord::LogSubscriber#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:82
                                                • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                  • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                • ActiveRecord::LogSubscriber#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:93
                                                  • #<Class:Time>#now $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:94
                                                    • Time#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:94
                                                  • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:105
                                                    • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                      • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                      • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                    • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:121
                                                  • Array#pop $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:95
                                                  • Hash#merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:97
                                                  • String#split $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:99
                                                  • Array#first $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:99
                                                  • ActiveRecord::LogSubscriber#sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:37
                                                    • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:38
                                                    • ActiveRecord::LogSubscriber.runtime $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:9
                                                      • ActiveRecord::RuntimeRegistry.sql_runtime $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                        • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                          • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                    • ActiveSupport::Notifications::Event#duration $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:60
                                                      • Time#minus_with_coercion $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:249
                                                        • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:250
                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:251
                                                        • Time#minus_with_duration $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:236
                                                          • ActiveSupport::Duration.=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/duration.rb:93
                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/duration.rb:94
                                                          • Time#- $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:240
                                                            • Integer#fdiv $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:240
                                                    • ActiveRecord::LogSubscriber.runtime= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:5
                                                      • ActiveRecord::RuntimeRegistry.sql_runtime= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:19
                                                        • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                          • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                    • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                      • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                    • ActiveSupport::Logger#debug? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:93
                                                      • ActiveSupport::Logger#level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:28
                                                        • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:16
                                                          • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:12
                                                            • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                            • BasicObject#__id__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                    • Array#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:43
                                                    • NilClass#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:45
                                                    • ActiveSupport::Notifications::Event#duration $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:60
                                                    • Float#round $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:45
                                                    • Float#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                      • Float#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                        • Float#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                    • ActiveRecord::LogSubscriber#odd? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:65
                                                    • ActiveRecord::LogSubscriber#color $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:102
                                                      • ActiveRecord::LogSubscriber#colorize_logging $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:67
                                                      • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:104
                                                    • ActiveRecord::LogSubscriber#color $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:102
                                                      • ActiveRecord::LogSubscriber#colorize_logging $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:67
                                                      • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:104
                                                      • NilClass#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:106
                                                    • NilClass#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:62
                                                    • ActiveRecord::LogSubscriber#debug $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:92
                                                      • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                        • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                      • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                        • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                      • ActiveSupport::Logger#debug /usr/local/lib/ruby/2.5.0/logger.rb:492
                                                        • ActiveSupport::Logger#add -> block (2 levels) in broadcast $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:25
                                                          • ActiveSupport::Logger#block (2 levels) in broadcast $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:25
                                                            • ActiveSupport::Logger#add $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:86
                                                              • Kernel#nil? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:87
                                                              • ActiveSupport::Logger#level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:28
                                                                • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:16
                                                                  • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:12
                                                                    • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                    • BasicObject#__id__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                              • ActiveSupport::Logger#add /usr/local/lib/ruby/2.5.0/logger.rb:455
                                                                • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:457
                                                                • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:460
                                                                • NilClass#nil? /usr/local/lib/ruby/2.5.0/logger.rb:463
                                                                • Kernel#block_given? /usr/local/lib/ruby/2.5.0/logger.rb:464
                                                                • ActiveSupport::Logger#format_severity /usr/local/lib/ruby/2.5.0/logger.rb:579
                                                                • #<Class:Time>#now /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                  • Time#initialize /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                • ActiveSupport::Logger#format_message /usr/local/lib/ruby/2.5.0/logger.rb:583
                                                                  • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:102
                                                                    • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:103
                                                                • Logger::LogDevice#write /usr/local/lib/ruby/2.5.0/logger.rb:686
                                                                  • Logger::LogDevice#mon_synchronize /usr/local/lib/ruby/2.5.0/monitor.rb:223
                                                                    • Logger::LogDevice#mon_enter /usr/local/lib/ruby/2.5.0/monitor.rb:183
                                                                      • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:184
                                                                      • Thread::Mutex#lock /usr/local/lib/ruby/2.5.0/monitor.rb:185
                                                                      • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:186
                                                                    • Logger::LogDevice#block in write /usr/local/lib/ruby/2.5.0/logger.rb:688
                                                                      • IO#write /usr/local/lib/ruby/2.5.0/logger.rb:697
                                                                    • Logger::LogDevice#mon_exit /usr/local/lib/ruby/2.5.0/monitor.rb:195
                                                                      • Logger::LogDevice#mon_check_owner /usr/local/lib/ruby/2.5.0/monitor.rb:259
                                                                        • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:260
                                                                      • Thread::Mutex#unlock /usr/local/lib/ruby/2.5.0/monitor.rb:200
                                                            • ActiveSupport::Logger#add $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:86
                                                              • Kernel#nil? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:87
                                                              • ActiveSupport::Logger#level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:28
                                                                • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:16
                                                                  • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:12
                                                                    • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                    • BasicObject#__id__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                              • ActiveSupport::Logger#add /usr/local/lib/ruby/2.5.0/logger.rb:455
                                                                • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:457
                                                                • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:460
                                                                • NilClass#nil? /usr/local/lib/ruby/2.5.0/logger.rb:463
                                                                • Kernel#block_given? /usr/local/lib/ruby/2.5.0/logger.rb:464
                                                                • ActiveSupport::Logger#format_severity /usr/local/lib/ruby/2.5.0/logger.rb:579
                                                                • #<Class:Time>#now /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                  • Time#initialize /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                • ActiveSupport::Logger#format_message /usr/local/lib/ruby/2.5.0/logger.rb:583
                                                                  • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:20
                                                                    • ActiveSupport::Logger::SimpleFormatter#tags_text $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:50
                                                                      • ActiveSupport::Logger::SimpleFormatter#current_tags $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:45
                                                                        • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:46
                                                                        • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:46
                                                                      • Array#any? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:52
                                                                    • NilClass#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:21
                                                                    • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:102
                                                                      • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:103
                                                                • Logger::LogDevice#write /usr/local/lib/ruby/2.5.0/logger.rb:686
                                                                  • Logger::LogDevice#mon_synchronize /usr/local/lib/ruby/2.5.0/monitor.rb:223
                                                                    • Logger::LogDevice#mon_enter /usr/local/lib/ruby/2.5.0/monitor.rb:183
                                                                      • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:184
                                                                      • Thread::Mutex#lock /usr/local/lib/ruby/2.5.0/monitor.rb:185
                                                                      • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:186
                                                                    • Logger::LogDevice#block in write /usr/local/lib/ruby/2.5.0/logger.rb:688
                                                                      • IO#write /usr/local/lib/ruby/2.5.0/logger.rb:697
                                                                    • Logger::LogDevice#mon_exit /usr/local/lib/ruby/2.5.0/monitor.rb:195
                                                                      • Logger::LogDevice#mon_check_owner /usr/local/lib/ruby/2.5.0/monitor.rb:259
                                                                        • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:260
                                                                      • Thread::Mutex#unlock /usr/local/lib/ruby/2.5.0/monitor.rb:200
                                          • ActiveSupport::Notifications::Fanout#block in finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:46
                                            • ActiveSupport::Notifications::Fanout::Subscribers::Evented#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:101
                                              • ActiveRecord::ExplainSubscriber#finish $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/explain_subscriber.rb:10
                                                • ActiveRecord::ExplainRegistry.collect? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:50
                                                  • ActiveRecord::ExplainRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                    • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                    • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                  • ActiveRecord::ExplainRegistry#collect? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/explain_registry.rb:21
                              • ActiveRecord::ConnectionAdapters::RealTransaction#commit $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:81
                                • ActiveRecord::ConnectionAdapters::TransactionState#set_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:29
                                  • Set#include? /usr/local/lib/ruby/2.5.0/set.rb:253
                              • ActiveRecord::ConnectionAdapters::RealTransaction#commit_records $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:85
                                • Array#uniq $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:86
                                  • Book#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:398
                                    • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                      • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                    • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                      • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                    • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:400
                                  • Book#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:398
                                    • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                      • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                    • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                      • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                    • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:400
                                • Array#shift $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:87
                                • Book#committed! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:313
                                  • Book#destroyed? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:91
                                    • Book#sync_with_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:515
                                      • Book#update_attributes_from_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:519
                                  • Book#persisted? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:98
                                    • Book#new_record? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:85
                                      • Book#sync_with_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:515
                                        • Book#update_attributes_from_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:519
                                    • Book#destroyed? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:91
                                      • Book#sync_with_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:515
                                        • Book#update_attributes_from_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:519
                                  • Book#_run_commit_callbacks $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:777
                                    • Book#_commit_callbacks -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                      • Book#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                        • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                        • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                        • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                          • Book._commit_callbacks -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                            • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                    • Book#__run_callbacks__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:86
                                      • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:529
                                      • ActiveSupport::Callbacks::CallbackChain#compile $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:553
                                      • #<Class:ActiveSupport::Callbacks::Filters::Environment>#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:91
                                        • Struct#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:91
                                      • ActiveSupport::Callbacks::CallbackSequence#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:503
                                        • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:504
                                        • ActiveSupport::Callbacks::CallbackChain#block (2 levels) in compile $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:555
                                          • ActiveSupport::Callbacks::Filters::End#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:115
                                            • ActiveSupport::Callbacks::Filters::Environment#run_block $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:116
                                            • ActiveSupport::Callbacks::Filters::Environment#halted $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:117
                                        • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:506
                                          • ActiveSupport::Callbacks::CallbackSequence#block in call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:506
                                            • ActiveSupport::Callbacks::Filters::After.block in simple $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:262
                                              • ActiveSupport::Callbacks::Filters::Environment#target $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:263
                                              • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:263
                                              • ActiveSupport::Callbacks::Callback#block in make_lambda $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:446
                                                • BasicObject#instance_exec $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:446
                                                  • Book#block in update_proc $GemPath0/gems/chewy-5.1.0/lib/chewy/type/observe.rb:11
                                                    • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/type/observe.rb:12
                                                    • Chewy.derive_type $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:97
                                                      • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:98
                                                      • Chewy.derive_types $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:115
                                                        • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:116
                                                        • String#split $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:118
                                                        • String#camelize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/string/inflections.rb:89
                                                          • ActiveSupport::Inflector.camelize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:68
                                                            • String#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:69
                                                            • String#sub $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:71
                                                              • ActiveSupport::Inflector.block in camelize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:71
                                                                • ActiveSupport::Inflector.inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:203
                                                                  • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:204
                                                                  • ActiveSupport::Inflector::Inflections.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:30
                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                • String#capitalize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:71
                                                            • String#gsub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:75
                                                            • String#gsub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:76
                                                        • String#gsub $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:119
                                                        • String#safe_constantize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/string/inflections.rb:76
                                                          • ActiveSupport::Inflector.safe_constantize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:303
                                                            • ActiveSupport::Inflector.constantize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:250
                                                              • String#split $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:251
                                                              • Enumerable#inject $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:259
                                                                • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:259
                                                                  • ActiveSupport::Inflector.block in constantize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:259
                                                                    • Module#const_get $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:261
                                                        • Module#< $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:121
                                                        • String#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                          • String#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:116
                                                            • Regexp#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:117
                                                        • EntertainmentIndex.type_hash -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                          • EntertainmentIndex.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                      • Enumerable#one? $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:101
                                                        • Array#each $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:101
                                                      • Array#first $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:102
                                                    • Chewy.strategy $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:197
                                                      • #<Class:Thread>#current $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:198
                                                      • Thread#[] $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:198
                                                      • #<Class:Thread>#current $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:206
                                                      • Thread#[] $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:206
                                                    • Chewy::Strategy#current $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:51
                                                      • Array#last $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:52
                                                    • Chewy::Strategy::Atomic#name $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy/base.rb:11
                                                      • Kernel#class $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy/base.rb:12
                                                      • Module#name $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy/base.rb:12
                                                      • String#demodulize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/string/inflections.rb:137
                                                        • ActiveSupport::Inflector.demodulize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:199
                                                          • String#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:200
                                                          • String#rindex $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:201
                                                          • String#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:202
                                                      • String#underscore $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/string/inflections.rb:118
                                                        • ActiveSupport::Inflector.underscore $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:91
                                                          • String#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:93
                                                          • String#gsub $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:93
                                                          • ActiveSupport::Inflector.inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:203
                                                            • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:204
                                                            • ActiveSupport::Inflector::Inflections.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:30
                                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                          • Regexp#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:94
                                                          • String#gsub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:94
                                                          • String#gsub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:95
                                                          • String#gsub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:96
                                                          • String#tr! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:97
                                                          • String#downcase! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:98
                                                      • String#to_sym $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy/base.rb:12
                                                    • Symbol#to_s $GemPath0/gems/chewy-5.1.0/lib/chewy/type/observe.rb:26
                                                    • EntertainmentIndex::Book.update_index $GemPath0/gems/chewy-5.1.0/lib/chewy/type/observe.rb:75
                                                      • Chewy.strategy $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:197
                                                        • #<Class:Thread>#current $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:198
                                                        • Thread#[] $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:198
                                                        • #<Class:Thread>#current $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:206
                                                        • Thread#[] $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:206
                                                      • Chewy::Strategy#current $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:51
                                                        • Array#last $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:52
                                                      • Chewy::Strategy::Atomic#update $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy/atomic.rb:19
                                                        • Kernel#hash $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy/atomic.rb:20
                                                        • Kernel#hash $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy/atomic.rb:21
                                                        • EntertainmentIndex::Book.root $GemPath0/gems/chewy-5.1.0/lib/chewy/type/mapping.rb:37
                                                          • EntertainmentIndex::Book.root_object -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                            • EntertainmentIndex::Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                          • EntertainmentIndex::Book.root_object -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                            • EntertainmentIndex::Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                          • Chewy::Fields::Root#update_options! $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:16
                                                            • Hash#fetch $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:17
                                                            • Hash#fetch $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:17
                                                            • Hash#fetch $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:18
                                                            • Hash#fetch $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:18
                                                            • Hash#fetch $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:19
                                                            • Hash#except $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:9
                                                              • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:10
                                                                • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:10
                                                                  • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:10
                                                              • Hash#except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:17
                                                                • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                  • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                    • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                  • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                    • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                  • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                    • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                  • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                    • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                  • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                    • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                  • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                    • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                            • Hash#merge! $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:20
                                                          • Kernel#block_given? $GemPath0/gems/chewy-5.1.0/lib/chewy/type/mapping.rb:40
                                                          • EntertainmentIndex::Book.root_object -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                            • EntertainmentIndex::Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                        • EntertainmentIndex::Book.adapter -> block in create_type $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:139
                                                          • EntertainmentIndex::Book.block in create_type $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:139
                                                        • Chewy::Type::Adapter::ActiveRecord#identify $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:25
                                                          • Chewy::Type::Adapter::ActiveRecord#relation_class $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/active_record.rb:88
                                                          • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:26
                                                          • Array.wrap $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:36
                                                            • Kernel#nil? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:37
                                                            • Book#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:235
                                                              • Book#respond_to? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:449
                                                                • Kernel#respond_to? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:450
                                                                • Kernel#respond_to? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:452
                                                          • Array#map $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:29
                                                            • Chewy::Type::Adapter::ActiveRecord#block in identify $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:29
                                                              • Chewy::Type::Adapter::ActiveRecord#primary_key $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/active_record.rb:36
                                                              • Book#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:235
                                                                • Book#respond_to? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:449
                                                                  • Kernel#respond_to? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:450
                                                                • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:237
                                                                • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:243
                                                                • Book.column_names $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:259
                                                                • Array#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:243
                                                                • Book#has_attribute? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:259
                                                                  • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:260
                                                                  • ActiveRecord::AttributeSet#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:22
                                                                    • ActiveRecord::LazyAttributeHash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:35
                                                                      • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:36
                                                                    • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                      • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                    • ActiveRecord::Attribute::FromDatabase#initialized? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:73
                                                              • Chewy::Type::Adapter::ActiveRecord#primary_key $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/active_record.rb:36
                                                              • Kernel#public_send $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:30
                                                                • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                  • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                    • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                    • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                      • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                        • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                      • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                        • Array#| $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy/atomic.rb:21
                                                        • Kernel#hash $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy/atomic.rb:21
                                      • ActiveSupport::Callbacks::Filters::Environment#value $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:92
                                  • Book#force_clear_transaction_record_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:386
                                    • Hash#clear $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/transactions.rb:387
                                • Array#shift $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:87
                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/transaction.rb:96
        • Chewy::Strategy#pop $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:61
          • Enumerable#one? $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:62
            • Array#each $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:62
          • Array#pop $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:63
          • Kernel#tap $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:63
            • Chewy::Strategy::Atomic#leave $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy/atomic.rb:24
              • Enumerable#all? $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy/atomic.rb:25
                • Hash#each $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy/atomic.rb:25
                  • Chewy::Strategy::Atomic#block in leave $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy/atomic.rb:25
                    • EntertainmentIndex::Book.import! $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import.rb:86
                      • EntertainmentIndex::Book.import_routine $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import.rb:128
                        • Array#first $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import.rb:129
                        • Array#empty? $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import.rb:129
                        • Array#extract_options! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/extract_options.rb:22
                          • Array#last $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/extract_options.rb:23
                          • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/extract_options.rb:23
                        • Class#new $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import.rb:130
                          • Chewy::Type::Import::Routine#initialize $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/routine.rb:44
                            • EntertainmentIndex::Book._default_import_options -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                              • EntertainmentIndex::Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                            • Hash#reverse_merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/reverse_merge.rb:17
                              • Hash#merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/reverse_merge.rb:19
                            • Chewy.configuration $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:213
                              • Chewy.config $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:210
                                • Chewy::Config.instance /usr/local/lib/ruby/2.5.0/singleton.rb:137
                              • Chewy::Config#configuration $GemPath0/gems/chewy-5.1.0/lib/chewy/config.rb:133
                                • Chewy::Config#yaml_settings $GemPath0/gems/chewy-5.1.0/lib/chewy/config.rb:143
                                • Hash#deep_symbolize_keys $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:126
                                  • Hash#deep_transform_keys $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:88
                                    • Hash#_deep_transform_keys_in_object $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:139
                                      • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:141
                                      • Enumerable#each_with_object $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:142
                                        • Hash#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:142
                                          • Hash#block in _deep_transform_keys_in_object $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:142
                                            • Hash#block in deep_symbolize_keys $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:127
                                              • Symbol#to_sym $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:127
                                            • Hash#_deep_transform_keys_in_object $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:139
                                              • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:141
                                              • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:145
                                • Hash#merge $GemPath0/gems/chewy-5.1.0/lib/chewy/config.rb:134
                                • Kernel#tap $GemPath0/gems/chewy-5.1.0/lib/chewy/config.rb:134
                                  • Chewy::Config#block in configuration $GemPath0/gems/chewy-5.1.0/lib/chewy/config.rb:134
                            • Hash#reverse_merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/reverse_merge.rb:17
                              • Hash#merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/reverse_merge.rb:19
                            • Hash#reverse_merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/reverse_merge.rb:17
                              • Hash#merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/reverse_merge.rb:19
                            • Hash#slice $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/slice.rb:21
                              • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/slice.rb:22
                              • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/slice.rb:23
                              • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/slice.rb:23
                                • Hash#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/slice.rb:23
                              • Enumerable#each_with_object $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/slice.rb:23
                                • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/slice.rb:23
                                  • Hash#block in slice $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/slice.rb:23
                                    • Hash#has_key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/slice.rb:23
                                  • Hash#block in slice $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/slice.rb:23
                                    • Hash#has_key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/slice.rb:23
                                  • Hash#block in slice $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/slice.rb:23
                                    • Hash#has_key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/slice.rb:23
                                  • Hash#block in slice $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/slice.rb:23
                                    • Hash#has_key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/slice.rb:23
                                  • Hash#block in slice $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/slice.rb:23
                                    • Hash#has_key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/slice.rb:23
                                  • Hash#block in slice $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/slice.rb:23
                                    • Hash#has_key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/slice.rb:23
                                  • Hash#block in slice $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/slice.rb:23
                                    • Hash#has_key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/slice.rb:23
                                  • Hash#block in slice $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/slice.rb:23
                                    • Hash#has_key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/slice.rb:23
                                  • Hash#block in slice $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/slice.rb:23
                                    • Hash#has_key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/slice.rb:23
                                  • Hash#block in slice $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/slice.rb:23
                                    • Hash#has_key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/slice.rb:23
                                  • Hash#block in slice $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/slice.rb:23
                                    • Hash#has_key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/slice.rb:23
                                  • Hash#block in slice $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/slice.rb:23
                                    • Hash#has_key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/slice.rb:23
                                  • Hash#block in slice $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/slice.rb:23
                                    • Hash#has_key? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/slice.rb:23
                            • Hash#delete $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/routine.rb:51
                        • Chewy::Type::Import::Routine#create_indexes! $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/routine.rb:66
                          • Chewy.configuration $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:213
                            • Chewy.config $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:210
                              • Chewy::Config.instance /usr/local/lib/ruby/2.5.0/singleton.rb:137
                            • Chewy::Config#configuration $GemPath0/gems/chewy-5.1.0/lib/chewy/config.rb:133
                              • Chewy::Config#yaml_settings $GemPath0/gems/chewy-5.1.0/lib/chewy/config.rb:143
                              • Hash#deep_symbolize_keys $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:126
                                • Hash#deep_transform_keys $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:88
                                  • Hash#_deep_transform_keys_in_object $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:139
                                    • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:141
                                    • Enumerable#each_with_object $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:142
                                      • Hash#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:142
                                        • Hash#block in _deep_transform_keys_in_object $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:142
                                          • Hash#block in deep_symbolize_keys $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:127
                                            • Symbol#to_sym $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:127
                                          • Hash#_deep_transform_keys_in_object $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:139
                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:141
                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:145
                              • Hash#merge $GemPath0/gems/chewy-5.1.0/lib/chewy/config.rb:134
                              • Kernel#tap $GemPath0/gems/chewy-5.1.0/lib/chewy/config.rb:134
                                • Chewy::Config#block in configuration $GemPath0/gems/chewy-5.1.0/lib/chewy/config.rb:134
                          • EntertainmentIndex::Book.index -> block in create_type $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:138
                            • EntertainmentIndex::Book.block in create_type $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:138
                          • EntertainmentIndex.exists? $GemPath0/gems/chewy-5.1.0/lib/chewy/index/actions.rb:14
                            • EntertainmentIndex.client $GemPath0/gems/chewy-5.1.0/lib/chewy/index.rb:13
                              • Chewy.client $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:147
                                • #<Class:Thread>#current $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:148
                                • Thread#[] $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:148
                            • Elasticsearch::Transport::Client#indices $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/namespace/indices.rb:18
                            • EntertainmentIndex.index_name $GemPath0/gems/chewy-5.1.0/lib/chewy/index.rb:53
                              • EntertainmentIndex.prefix_with_deprecation $GemPath0/gems/chewy-5.1.0/lib/chewy/index.rb:261
                                • Kernel#respond_to? $GemPath0/gems/chewy-5.1.0/lib/chewy/index.rb:262
                                  • EntertainmentIndex.respond_to_missing? $GemPath0/gems/chewy-5.1.0/lib/chewy/search.rb:78
                                    • EntertainmentIndex.search_class $GemPath0/gems/chewy-5.1.0/lib/chewy/search.rb:84
                                    • Set#include? /usr/local/lib/ruby/2.5.0/set.rb:253
                                    • Kernel#respond_to_missing? $GemPath0/gems/chewy-5.1.0/lib/chewy/search.rb:79
                                • EntertainmentIndex.prefix $GemPath0/gems/chewy-5.1.0/lib/chewy/index.rb:110
                                  • Chewy.configuration $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:213
                                    • Chewy.config $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:210
                                      • Chewy::Config.instance /usr/local/lib/ruby/2.5.0/singleton.rb:137
                                    • Chewy::Config#configuration $GemPath0/gems/chewy-5.1.0/lib/chewy/config.rb:133
                                      • Chewy::Config#yaml_settings $GemPath0/gems/chewy-5.1.0/lib/chewy/config.rb:143
                                      • Hash#deep_symbolize_keys $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:126
                                        • Hash#deep_transform_keys $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:88
                                          • Hash#_deep_transform_keys_in_object $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:139
                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:141
                                            • Enumerable#each_with_object $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:142
                                              • Hash#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:142
                                                • Hash#block in _deep_transform_keys_in_object $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:142
                                                  • Hash#block in deep_symbolize_keys $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:127
                                                    • Symbol#to_sym $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:127
                                                  • Hash#_deep_transform_keys_in_object $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:139
                                                    • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:141
                                                    • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:145
                                      • Hash#merge $GemPath0/gems/chewy-5.1.0/lib/chewy/config.rb:134
                                      • Kernel#tap $GemPath0/gems/chewy-5.1.0/lib/chewy/config.rb:134
                                        • Chewy::Config#block in configuration $GemPath0/gems/chewy-5.1.0/lib/chewy/config.rb:134
                              • EntertainmentIndex.base_name $GemPath0/gems/chewy-5.1.0/lib/chewy/index.rb:77
                                • Module#name $GemPath0/gems/chewy-5.1.0/lib/chewy/index.rb:78
                                • String#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:116
                                  • Regexp#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:117
                              • Array#reject $GemPath0/gems/chewy-5.1.0/lib/chewy/index.rb:61
                                • NilClass#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:54
                                • String#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:116
                                  • Regexp#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:117
                                • NilClass#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:54
                              • Array#join $GemPath0/gems/chewy-5.1.0/lib/chewy/index.rb:61
                            • Elasticsearch::API::Indices::IndicesClient#exists $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/actions/indices/exists.rb:33
                              • Elasticsearch::API::Utils.__listify $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:39
                                • Array#last $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:40
                                • Kernel#is_a? $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:40
                                • Kernel#Array $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:43
                                • Enumerable#flat_map $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:44
                                  • Array#each $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:44
                                    • Elasticsearch::API::Utils.block in __listify $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:44
                                      • Kernel#respond_to? $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:44
                                      • String#split $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:44
                                • Array#flatten $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:45
                                • Array#compact $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:46
                                • Array#map $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:47
                                  • Elasticsearch::API::Utils.block in __listify $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:47
                                    • Elasticsearch::API::Utils.__escape $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:19
                                      • String#to_s $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:21
                                      • CGI::Escape#escape $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:21
                                • Array#join $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:48
                              • Kernel#__method__ $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/actions/indices/exists.rb:37
                              • Elasticsearch::API::Indices::Actions::ParamsRegistry.get $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/actions/indices/params_registry.rb:41
                                • Hash#fetch $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/actions/indices/params_registry.rb:42
                              • Elasticsearch::API::Utils.__validate_and_extract_params $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:147
                                • Elasticsearch::API.settings $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api.rb:71
                                • Elasticsearch::API::Utils.__validate_params $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:156
                                  • Hash#each $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:157
                                    • Elasticsearch::API::Utils.block in __validate_params $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:157
                                      • Array#include? $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:159
                                • Hash#merge $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:152
                                • Elasticsearch::API::Utils.__extract_params $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:163
                                  • Hash#select $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:164
                                    • Elasticsearch::API::Utils.block in __extract_params $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:164
                                      • Array#include? $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:164
                                      • Array#include? $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:164
                                  • Kernel#is_a? $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:165
                                  • Enumerable#map $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:166
                                    • Hash#each $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:166
                                  • #<Class:Hash>#[] $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:166
                              • Elasticsearch::API::Utils.__rescue_from_not_found $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:205
                                • Elasticsearch::API::Indices::IndicesClient#block in exists $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/actions/indices/exists.rb:40
                                  • Elasticsearch::API::Indices::IndicesClient#perform_request $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/namespace/common.rb:24
                                    • - - -
                        • EntertainmentIndex::Book.import_linear $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import.rb:140
                          • ActiveSupport::Notifications.instrument $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications.rb:162
                            • ActiveSupport::Notifications::Fanout#listening? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:61
                              • ActiveSupport::Notifications::Fanout#listeners_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:53
                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                              • Array#any? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:62
                            • ActiveSupport::Notifications.instrumenter $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications.rb:185
                              • ActiveSupport::Notifications::InstrumentationRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                              • ActiveSupport::Notifications::InstrumentationRegistry#instrumenter_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications.rb:205
                                • Kernel#hash $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications.rb:206
                            • ActiveSupport::Notifications::Instrumenter#instrument $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:17
                              • ActiveSupport::Notifications::Instrumenter#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:30
                                • ActiveSupport::Notifications::Fanout#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:41
                                  • ActiveSupport::Notifications::Fanout#listeners_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:53
                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                  • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:42
                                    • ActiveSupport::Notifications::Fanout#block in start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:42
                                      • ActiveSupport::Notifications::Fanout::Subscribers::Evented#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:97
                                        • Chewy::LogSubscriber#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:78
                                          • Chewy::LogSubscriber#logger $GemPath0/gems/chewy-5.1.0/lib/chewy/log_subscriber.rb:3
                                            • Chewy.logger $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:213
                                              • Chewy.config $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:210
                                                • Chewy::Config.instance /usr/local/lib/ruby/2.5.0/singleton.rb:137
                                          • Chewy::LogSubscriber#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:85
                                            • #<Class:Time>#now $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:86
                                              • Time#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:86
                                            • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:86
                                              • ActiveSupport::Notifications::Event#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:50
                                                • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:52
                                                  • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:52
                                                    • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:52
                                            • Chewy::LogSubscriber#event_stack $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:105
                                              • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                              • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:121
                                            • Array#last $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:87
                                            • Chewy::LogSubscriber#event_stack $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:105
                                              • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                              • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:121
                                            • Array#push $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:90
                              • ActiveSupport::Notifications.block in instrument $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications.rb:164
                                • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications.rb:164
                                • EntertainmentIndex::Book.block in import_linear $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import.rb:141
                                  • EntertainmentIndex::Book.adapter -> block in create_type $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:139
                                    • EntertainmentIndex::Book.block in create_type $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:139
                                  • Chewy::Type::Adapter::ActiveRecord#import $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:75
                                    • Chewy::Type::Adapter::ActiveRecord#import_args $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:175
                                      • Array#extract_options! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/extract_options.rb:22
                                        • Array#last $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/extract_options.rb:23
                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/extract_options.rb:23
                                        • Array#last $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/extract_options.rb:23
                                        • Hash#extractable_options? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/extract_options.rb:7
                                          • Kernel#instance_of? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/extract_options.rb:8
                                        • Array#pop $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/extract_options.rb:24
                                      • Enumerable#one? $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:181
                                        • Array#each $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:181
                                      • Array#first $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:181
                                      • Chewy::Type::Adapter::ActiveRecord#relation_class $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/active_record.rb:88
                                      • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:181
                                      • Array#flatten $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:184
                                      • Array#compact $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:184
                                    • Chewy::Type::Adapter::ActiveRecord#relation_class $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/active_record.rb:88
                                    • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:78
                                    • Chewy::Type::Adapter::ActiveRecord#import_objects $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:115
                                      • Chewy::Type::Adapter::ActiveRecord#identify $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:25
                                        • Chewy::Type::Adapter::ActiveRecord#relation_class $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/active_record.rb:88
                                        • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:26
                                        • Array.wrap $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:36
                                          • Kernel#nil? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:37
                                          • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:39
                                          • Array#to_ary $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:40
                                        • Array#map $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:29
                                          • Chewy::Type::Adapter::ActiveRecord#block in identify $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:29
                                            • Chewy::Type::Adapter::ActiveRecord#primary_key $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/active_record.rb:36
                                            • Kernel#respond_to? $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:30
                                          • Chewy::Type::Adapter::ActiveRecord#block in identify $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:29
                                            • Chewy::Type::Adapter::ActiveRecord#primary_key $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/active_record.rb:36
                                            • Kernel#respond_to? $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:30
                                      • Array#map $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:117
                                        • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                          • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                            • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                        • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                          • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                            • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                      • Array#zip $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:117
                                      • #<Class:Hash>#[] $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:117
                                      • Enumerable#each_slice $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:119
                                      • Enumerable#map $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:119
                                        • Enumerator#each $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:119
                                          • Enumerable#each_slice $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:119
                                            • Array#length $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:119
                                            • Array#each $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:119
                                              • Chewy::Type::Adapter::ActiveRecord#block in import_objects $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:119
                                                • Chewy::Type::Adapter::ActiveRecord#default_scope_where_ids_in $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:145
                                                  • Chewy::Type::Adapter::ActiveRecord#scope_where_ids_in $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/active_record.rb:79
                                                    • Chewy::Type::Adapter::ActiveRecord#target_id $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/active_record.rb:40
                                                      • Book.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                      • Chewy::Type::Adapter::ActiveRecord#primary_key $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/active_record.rb:36
                                                      • Symbol#to_s $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/active_record.rb:41
                                                      • Arel::Table#[] $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:99
                                                        • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                          • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                    • Array.wrap $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:36
                                                      • Kernel#nil? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:37
                                                      • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:39
                                                      • Array#to_ary $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:40
                                                    • Arel::Attributes::Attribute#in $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:47
                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:49
                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:51
                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:58
                                                      • Arel::Attributes::Attribute#quoted_array $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:211
                                                        • Array#map $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:212
                                                          • Arel::Attributes::Attribute#block in quoted_array $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:212
                                                            • Arel::Attributes::Attribute#quoted_node $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:207
                                                              • Arel::Nodes.build_quoted $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:81
                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:87
                                                                • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:88
                                                                  • Arel::Nodes::Casted#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:62
                                                                    • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:65
                                                          • Arel::Attributes::Attribute#block in quoted_array $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:212
                                                            • Arel::Attributes::Attribute#quoted_node $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:207
                                                              • Arel::Nodes.build_quoted $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:81
                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:87
                                                                • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:88
                                                                  • Arel::Nodes::Casted#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:62
                                                                    • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:65
                                                      • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:59
                                                        • Arel::Nodes::In#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                          • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                    • Book::ActiveRecord_Relation#where $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:568
                                                      • Arel::Nodes::In#eql? $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:22
                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                      • Arel::Nodes::In#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:16
                                                        • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:17
                                                      • Book::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                        • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                          • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                            • Book::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                              • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                              • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                              • Book::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                      • Book::ActiveRecord_Relation#where! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:578
                                                        • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:579
                                                        • Book::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                        • Book::ActiveRecord_Relation#build_where $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:947
                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:949
                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:949
                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:951
                                                        • Book::ActiveRecord_Relation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                          • Book::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                • Book::ActiveRecord_Relation#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:262
                                                  • Book::ActiveRecord_Relation#limit_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                  • Book::ActiveRecord_Relation#count $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/calculations.rb:38
                                                    • Hash#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                      • Hash#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:24
                                                    • Book::ActiveRecord_Relation#calculate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/calculations.rb:123
                                                      • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/calculations.rb:126
                                                      • Book::ActiveRecord_Relation#attribute_alias? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:69
                                                        • Book::ActiveRecord_Relation#scoping $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:300
                                                          • Book.current_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:13
                                                            • Book.base_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:100
                                                              • Module#< $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:101
                                                              • Class#superclass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:105
                                                            • Module#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:14
                                                            • ActiveRecord::Scoping::ScopeRegistry.value_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:50
                                                              • ActiveRecord::Scoping::ScopeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                              • ActiveRecord::Scoping::ScopeRegistry#value_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:67
                                                                • ActiveRecord::Scoping::ScopeRegistry#raise_invalid_scope_type! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:80
                                                                  • Array#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:81
                                                          • Book.current_scope= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:17
                                                            • Book.base_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:100
                                                              • Module#< $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:101
                                                              • Class#superclass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:105
                                                            • Module#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:18
                                                            • ActiveRecord::Scoping::ScopeRegistry.set_value_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:50
                                                              • ActiveRecord::Scoping::ScopeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                              • ActiveRecord::Scoping::ScopeRegistry#set_value_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:73
                                                                • ActiveRecord::Scoping::ScopeRegistry#raise_invalid_scope_type! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:80
                                                                  • Array#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:81
                                                          • Book::ActiveRecord_Relation#block in attribute_alias? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:70
                                                            • Book.attribute_alias? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:218
                                                              • Book.attribute_aliases -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                              • Symbol#to_s $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                              • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                          • Book.current_scope= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:17
                                                            • Book.base_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:100
                                                              • Module#< $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:101
                                                              • Class#superclass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:105
                                                            • Module#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:18
                                                            • ActiveRecord::Scoping::ScopeRegistry.set_value_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:50
                                                              • ActiveRecord::Scoping::ScopeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                              • ActiveRecord::Scoping::ScopeRegistry#set_value_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:73
                                                                • ActiveRecord::Scoping::ScopeRegistry#raise_invalid_scope_type! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:80
                                                                  • Array#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:81
                                                      • Book::ActiveRecord_Relation#has_include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/calculations.rb:201
                                                        • Book::ActiveRecord_Relation#eager_loading? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:584
                                                          • Book::ActiveRecord_Relation#eager_load_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                          • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:586
                                                          • Book::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                          • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:587
                                                          • Book::ActiveRecord_Relation#joined_includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:594
                                                            • Book::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                            • Book::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                            • Array#& $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:595
                                                          • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:587
                                                          • Book::ActiveRecord_Relation#references_eager_loaded_tables? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:658
                                                            • Book::ActiveRecord_Relation#arel $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:857
                                                              • Book::ActiveRecord_Relation#build_arel $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:863
                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:864
                                                                  • Arel::SelectManager#initialize $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:9
                                                                    • Arel::SelectManager#initialize $GemPath0/gems/arel-6.0.4/lib/arel/tree_manager.rb:11
                                                                    • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:11
                                                                      • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_statement.rb:7
                                                                        • Arel::Nodes::SelectCore#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_core.rb:7
                                                                          • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_core.rb:8
                                                                          • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_core.rb:9
                                                                            • Arel::Nodes::JoinSource#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/join_source.rb:9
                                                                              • Arel::Nodes::JoinSource#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                      • Arel::Nodes::SelectStatement#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_statement.rb:7
                                                                        • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_statement.rb:8
                                                                    • Array#last $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:12
                                                                    • Arel::SelectManager#from $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:87
                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:88
                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:91
                                                                • Book::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                • Book::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                • Array#- $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:868
                                                                  • Arel::Nodes::In#eql? $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:22
                                                                    • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                    • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                • Book::ActiveRecord_Relation#collapse_wheres $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:937
                                                                  • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:938
                                                                    • Book::ActiveRecord_Relation#block in collapse_wheres $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:938
                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:939
                                                                  • Array#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                                    • Array#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:24
                                                                  • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:944
                                                                    • Arel::Nodes::And#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/and.rb:6
                                                                      • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/and.rb:7
                                                                  • Arel::SelectManager#where $GemPath0/gems/arel-6.0.4/lib/arel/tree_manager.rb:38
                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/tree_manager.rb:39
                                                                • Book::ActiveRecord_Relation#having_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                • Book::ActiveRecord_Relation#limit_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                • Book::ActiveRecord_Relation#offset_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                • Book::ActiveRecord_Relation#group_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                • Book::ActiveRecord_Relation#build_order $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1099
                                                                  • Book::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                  • Array#uniq $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1100
                                                                  • Array#reject! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1101
                                                                    • NilClass#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:54
                                                                • Book::ActiveRecord_Relation#build_select $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1057
                                                                  • Book::ActiveRecord_Relation#select_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                  • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1058
                                                                  • Book.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                  • Arel.star $GemPath0/gems/arel-6.0.4/lib/arel.rb:30
                                                                    • Arel.sql $GemPath0/gems/arel-6.0.4/lib/arel.rb:26
                                                                      • Class#new $GemPath0/gems/arel-6.0.4/lib/arel.rb:27
                                                                        • String#initialize $GemPath0/gems/arel-6.0.4/lib/arel.rb:27
                                                                  • Arel::Table#[] $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:99
                                                                    • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                      • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                  • Arel::SelectManager#project $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:132
                                                                    • Array#map $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:135
                                                                      • Arel::SelectManager#block in project $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:135
                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                        • Array#include? $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                    • Array#concat $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:135
                                                                • Book::ActiveRecord_Relation#distinct_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                • Arel::SelectManager#distinct $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:149
                                                                • Book::ActiveRecord_Relation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                • Book::ActiveRecord_Relation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                            • Arel::SelectManager#join_sources $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:229
                                                            • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:659
                                                            • Array#flatten $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:670
                                                            • Array#compact $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:670
                                                            • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:670
                                                              • Book::ActiveRecord_Relation#block in references_eager_loaded_tables? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:670
                                                                • String#downcase $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:670
                                                            • Array#uniq $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:670
                                                            • Book::ActiveRecord_Relation#references_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                            • Array#- $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:672
                                                            • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:672
                                                        • Book::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                        • Array#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                          • Array#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:24
                                                        • Book::ActiveRecord_Relation#references_eager_loaded_tables? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:658
                                                          • Book::ActiveRecord_Relation#arel $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:857
                                                          • Arel::SelectManager#join_sources $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:229
                                                          • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:659
                                                          • Array#flatten $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:670
                                                          • Array#compact $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:670
                                                          • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:670
                                                            • Book::ActiveRecord_Relation#block in references_eager_loaded_tables? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:670
                                                              • String#downcase $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:670
                                                          • Array#uniq $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:670
                                                          • Book::ActiveRecord_Relation#references_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                          • Array#- $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:672
                                                          • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:672
                                                      • Book::ActiveRecord_Relation#perform_calculation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/calculations.rb:205
                                                        • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/calculations.rb:208
                                                        • String#downcase $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/calculations.rb:208
                                                        • Book::ActiveRecord_Relation#distinct_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                        • Book::ActiveRecord_Relation#arel $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:857
                                                        • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/calculations.rb:216
                                                          • Arel::Nodes::SelectStatement#each $GemPath0/gems/arel-6.0.4/lib/arel/nodes/node.rb:53
                                                            • Kernel#block_given? $GemPath0/gems/arel-6.0.4/lib/arel/nodes/node.rb:54
                                                            • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes/node.rb:56
                                                              • Arel::Visitors::DepthFirst#initialize $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:4
                                                                • Arel::Visitors::DepthFirst#initialize $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:4
                                                                  • Arel::Visitors::DepthFirst#get_dispatch_cache $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:180
                                                            • Arel::Visitors::DepthFirst#accept $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:8
                                                              • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:11
                                                                • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:28
                                                                  • Arel::Visitors::DepthFirst#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                  • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                  • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                  • Arel::Visitors::DepthFirst#visit_Arel_Nodes_SelectStatement $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:153
                                                                    • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:11
                                                                      • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:28
                                                                        • Arel::Visitors::DepthFirst#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                        • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                        • Arel::Visitors::DepthFirst#visit_Array $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:169
                                                                          • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:170
                                                                            • Arel::Visitors::DepthFirst#block in visit_Array $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:170
                                                                              • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:11
                                                                                • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:28
                                                                                  • Arel::Visitors::DepthFirst#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                  • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                  • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                  • Arel::Visitors::DepthFirst#visit_Arel_Nodes_SelectCore $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:144
                                                                                    • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:11
                                                                                      • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:28
                                                                                        • Arel::Visitors::DepthFirst#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                        • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                        • Arel::Visitors::DepthFirst#visit_Array $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:169
                                                                                          • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:170
                                                                                            • Arel::Visitors::DepthFirst#block in visit_Array $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:170
                                                                                              • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:11
                                                                                                • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:28
                                                                                                  • Arel::Visitors::DepthFirst#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                  • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                                  • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                                  • Arel::Visitors::DepthFirst#visit_Arel_Attribute $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:96
                                                                                                    • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:97
                                                                                                    • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:11
                                                                                                      • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:28
                                                                                                        • Arel::Visitors::DepthFirst#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                                        • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                                        • Arel::Visitors::DepthFirst#visit_Arel_Table $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:108
                                                                                                          • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:11
                                                                                                            • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:28
                                                                                                              • Arel::Visitors::DepthFirst#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                              • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                                              • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                                              • Arel::Visitors::DepthFirst#terminal $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:112
                                                                                                            • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:13
                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:13
                                                                                                    • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:98
                                                                                                    • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:11
                                                                                                      • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:28
                                                                                                        • Arel::Visitors::DepthFirst#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                                        • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                                        • Arel::Visitors::DepthFirst#terminal $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:112
                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:13
                                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:13
                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:13
                                                                                    • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:11
                                                                                      • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:28
                                                                                        • Arel::Visitors::DepthFirst#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                        • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                        • Arel::Visitors::DepthFirst#binary $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:61
                                                                                          • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:11
                                                                                            • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:28
                                                                                              • Arel::Visitors::DepthFirst#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                              • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                              • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                              • Arel::Visitors::DepthFirst#visit_Arel_Table $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:108
                                                                                                • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:11
                                                                                                  • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:28
                                                                                                    • Arel::Visitors::DepthFirst#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                    • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                                    • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                                    • Arel::Visitors::DepthFirst#terminal $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:112
                                                                                                  • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:13
                                                                                            • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:13
                                                                                          • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:11
                                                                                            • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:28
                                                                                              • Arel::Visitors::DepthFirst#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                              • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                              • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                              • Arel::Visitors::DepthFirst#visit_Array $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:169
                                                                                                • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:170
                                                                                            • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:13
                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:13
                                                                                    • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:11
                                                                                      • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:28
                                                                                        • Arel::Visitors::DepthFirst#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                        • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                        • Arel::Visitors::DepthFirst#visit_Array $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:169
                                                                                          • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:170
                                                                                            • Arel::Visitors::DepthFirst#block in visit_Array $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:170
                                                                                              • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:11
                                                                                                • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:28
                                                                                                  • Arel::Visitors::DepthFirst#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                  • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                                  • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                                  • Arel::Visitors::DepthFirst#nary $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:56
                                                                                                    • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:57
                                                                                                      • Arel::Visitors::DepthFirst#block in nary $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:57
                                                                                                        • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:11
                                                                                                          • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:28
                                                                                                            • Arel::Visitors::DepthFirst#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                                            • Arel::Visitors::DepthFirst#binary $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:61
                                                                                                              • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:11
                                                                                                                • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:28
                                                                                                                  • Arel::Visitors::DepthFirst#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                  • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                                                  • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                                                  • Arel::Visitors::DepthFirst#visit_Arel_Attribute $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:96
                                                                                                                    • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:97
                                                                                                                    • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:11
                                                                                                                      • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:28
                                                                                                                        • Arel::Visitors::DepthFirst#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                                                        • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                                                        • Arel::Visitors::DepthFirst#visit_Arel_Table $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:108
                                                                                                                          • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:11
                                                                                                                            • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:28
                                                                                                                              • Arel::Visitors::DepthFirst#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                              • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                                                              • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                                                              • Arel::Visitors::DepthFirst#terminal $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:112
                                                                                                                            • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:13
                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:13
                                                                                                                    • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:98
                                                                                                                    • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:11
                                                                                                                      • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:28
                                                                                                                        • Arel::Visitors::DepthFirst#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                                                        • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                                                        • Arel::Visitors::DepthFirst#terminal $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:112
                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:13
                                                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:13
                                                                                                              • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:11
                                                                                                                • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:28
                                                                                                                  • Arel::Visitors::DepthFirst#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                  • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                                                  • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                                                  • Arel::Visitors::DepthFirst#visit_Array $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:169
                                                                                                                    • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:170
                                                                                                                      • Arel::Visitors::DepthFirst#block in visit_Array $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:170
                                                                                                                        • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:11
                                                                                                                          • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:28
                                                                                                                            • Arel::Visitors::DepthFirst#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                                                            • Arel::Visitors::DepthFirst#terminal $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:112
                                                                                                                          • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:13
                                                                                                                      • Arel::Visitors::DepthFirst#block in visit_Array $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:170
                                                                                                                        • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:11
                                                                                                                          • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:28
                                                                                                                            • Arel::Visitors::DepthFirst#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                                                            • Arel::Visitors::DepthFirst#terminal $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:112
                                                                                                                          • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:13
                                                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:13
                                                                                                          • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:13
                                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:13
                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:13
                                                                                    • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:11
                                                                                      • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:28
                                                                                        • Arel::Visitors::DepthFirst#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                        • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                        • Arel::Visitors::DepthFirst#visit_Array $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:169
                                                                                          • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:170
                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:13
                                                                                    • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:11
                                                                                      • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:28
                                                                                        • Arel::Visitors::DepthFirst#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                        • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                        • Arel::Visitors::DepthFirst#visit_Array $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:169
                                                                                          • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:170
                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:13
                                                                                    • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:11
                                                                                      • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:28
                                                                                        • Arel::Visitors::DepthFirst#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                        • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                                        • Arel::Visitors::DepthFirst#terminal $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:112
                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:13
                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:13
                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:13
                                                                    • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:11
                                                                      • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:28
                                                                        • Arel::Visitors::DepthFirst#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                        • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                        • Arel::Visitors::DepthFirst#visit_Array $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:169
                                                                          • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:170
                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:13
                                                                    • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:11
                                                                      • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:28
                                                                        • Arel::Visitors::DepthFirst#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                        • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                        • Arel::Visitors::DepthFirst#terminal $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:112
                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:13
                                                                    • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:11
                                                                      • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:28
                                                                        • Arel::Visitors::DepthFirst#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                        • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                        • Arel::Visitors::DepthFirst#terminal $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:112
                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:13
                                                                    • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:11
                                                                      • Arel::Visitors::DepthFirst#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:28
                                                                        • Arel::Visitors::DepthFirst#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                        • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:29
                                                                        • Arel::Visitors::DepthFirst#terminal $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:112
                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:13
                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/depth_first.rb:13
                                                        • Symbol#=~ $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/calculations.rb:221
                                                        • Book::ActiveRecord_Relation#group_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                        • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/calculations.rb:224
                                                        • Book::ActiveRecord_Relation#execute_simple_calculation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/calculations.rb:243
                                                          • Book::ActiveRecord_Relation#unscope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:388
                                                            • Book::ActiveRecord_Relation#check_if_method_has_arguments! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1160
                                                              • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1161
                                                            • Book::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                              • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                  • Book::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                    • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                    • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                    • Book::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                            • Book::ActiveRecord_Relation#unscope! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:393
                                                              • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:394
                                                              • Book::ActiveRecord_Relation#unscope_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                              • Book::ActiveRecord_Relation#unscope_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                • Book::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                              • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:397
                                                                • Book::ActiveRecord_Relation#block in unscope! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:397
                                                                  • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:399
                                                                  • Book::ActiveRecord_Relation#symbol_unscoping $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:887
                                                                    • Set#include? /usr/local/lib/ruby/2.5.0/set.rb:253
                                                                    • Array#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:892
                                                                    • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:893
                                                                    • Book::ActiveRecord_Relation#order_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                      • Book::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                          • Book::ActiveRecord_Relation#limit_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                          • Book::ActiveRecord_Relation#offset_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                          • Book::ActiveRecord_Relation#aggregate_column $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/calculations.rb:231
                                                            • Book.column_names $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:259
                                                            • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/calculations.rb:232
                                                            • Array#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/calculations.rb:232
                                                            • Arel.sql $GemPath0/gems/arel-6.0.4/lib/arel.rb:26
                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel.rb:27
                                                                • String#initialize $GemPath0/gems/arel-6.0.4/lib/arel.rb:27
                                                          • Book::ActiveRecord_Relation#operation_over_aggregate_column $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/calculations.rb:239
                                                            • Arel::Nodes::SqlLiteral#count $GemPath0/gems/arel-6.0.4/lib/arel/expressions.rb:3
                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/expressions.rb:4
                                                                • Arel::Nodes::Count#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/count.rb:4
                                                                  • Arel::Nodes::Count#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/function.rb:9
                                                                    • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/function.rb:10
                                                          • Book.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                                            • Book.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                                              • Book.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                                • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                  • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                    • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                    • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                • Book.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                  • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                              • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                                                • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                                  • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                                    • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                  • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                                                  • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                                                    • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                                                      • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                        • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                          • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#column_name_for_operation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:396
                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#collector $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:138
                                                              • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:140
                                                                • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#initialize $GemPath0/gems/arel-6.0.4/lib/arel/collectors/sql_string.rb:8
                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#initialize $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:4
                                                            • Arel::Visitors::SQLite#accept $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:6
                                                              • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                • Arel::Visitors::SQLite#visit_Arel_Nodes_Count $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:475
                                                                  • Arel::Visitors::SQLite#aggregate $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:808
                                                                    • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                    • Arel::Visitors::SQLite#inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:791
                                                                      • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                      • Enumerable#inject $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                        • Enumerator#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                          • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                            • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                              • Arel::Visitors::SQLite#block in inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                  • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                  • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                  • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                  • Arel::Visitors::SQLite#literal $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:720
                                                                                    • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:720
                                                                                    • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                    • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                            • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#value $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:8
                                                          • Book::ActiveRecord_Relation#select_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                            • Book::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                          • Book::ActiveRecord_Relation#arel $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:857
                                                            • Book::ActiveRecord_Relation#build_arel $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:863
                                                              • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:864
                                                                • Arel::SelectManager#initialize $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:9
                                                                  • Arel::SelectManager#initialize $GemPath0/gems/arel-6.0.4/lib/arel/tree_manager.rb:11
                                                                  • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:11
                                                                    • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_statement.rb:7
                                                                      • Arel::Nodes::SelectCore#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_core.rb:7
                                                                        • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_core.rb:8
                                                                        • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_core.rb:9
                                                                          • Arel::Nodes::JoinSource#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/join_source.rb:9
                                                                            • Arel::Nodes::JoinSource#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                              • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                    • Arel::Nodes::SelectStatement#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_statement.rb:7
                                                                      • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_statement.rb:8
                                                                  • Array#last $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:12
                                                                  • Arel::SelectManager#from $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:87
                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:88
                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:91
                                                              • Book::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                              • Book::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                              • Array#- $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:868
                                                                • Arel::Nodes::In#eql? $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:22
                                                                  • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                  • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                              • Book::ActiveRecord_Relation#collapse_wheres $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:937
                                                                • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:938
                                                                  • Book::ActiveRecord_Relation#block in collapse_wheres $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:938
                                                                    • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:939
                                                                • Array#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                                  • Array#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:24
                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:944
                                                                  • Arel::Nodes::And#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/and.rb:6
                                                                    • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/and.rb:7
                                                                • Arel::SelectManager#where $GemPath0/gems/arel-6.0.4/lib/arel/tree_manager.rb:38
                                                                  • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/tree_manager.rb:39
                                                              • Book::ActiveRecord_Relation#having_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                              • Book::ActiveRecord_Relation#limit_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                              • Book::ActiveRecord_Relation#offset_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                              • Book::ActiveRecord_Relation#group_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                              • Book::ActiveRecord_Relation#build_order $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1099
                                                                • Book::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                • Array#uniq $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1100
                                                                • Array#reject! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1101
                                                              • Book::ActiveRecord_Relation#build_select $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1057
                                                                • Book::ActiveRecord_Relation#select_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1058
                                                                • Book::ActiveRecord_Relation#select_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                • Array#uniq $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1059
                                                                • Book::ActiveRecord_Relation#arel_columns $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1065
                                                                  • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1066
                                                                    • Book::ActiveRecord_Relation#block in arel_columns $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1066
                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1067
                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1067
                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1069
                                                                • Arel::SelectManager#project $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:132
                                                                  • Array#map $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:135
                                                                    • Arel::SelectManager#block in project $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:135
                                                                      • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                      • Array#include? $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                  • Array#concat $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:135
                                                              • Book::ActiveRecord_Relation#distinct_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                              • Arel::SelectManager#distinct $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:149
                                                              • Book::ActiveRecord_Relation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                              • Book::ActiveRecord_Relation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                          • Book::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                          • Book.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                                            • Book.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                                              • Book.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                                • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                  • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                    • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                    • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                • Book.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                  • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                              • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                                                • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                                  • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                                    • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                  • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                                                  • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                                                    • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                                                      • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                        • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                          • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#select_all $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/query_cache.rb:64
                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#select_all $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:30
                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#binds_from_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:385
                                                                • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:386
                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#to_sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:10
                                                                • Kernel#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:11
                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#collector $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:138
                                                                  • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:140
                                                                    • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#initialize $GemPath0/gems/arel-6.0.4/lib/arel/collectors/sql_string.rb:8
                                                                      • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#initialize $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:4
                                                                • Arel::Visitors::SQLite#accept $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:6
                                                                  • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                    • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                    • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                    • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                    • Arel::Visitors::SQLite#visit_Arel_Nodes_SelectStatement $GemPath0/gems/arel-6.0.4/lib/arel/visitors/sqlite.rb:11
                                                                      • Arel::Visitors::SQLite#visit_Arel_Nodes_SelectStatement $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:203
                                                                        • Enumerable#inject $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:209
                                                                          • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:209
                                                                            • Arel::Visitors::SQLite#block in visit_Arel_Nodes_SelectStatement $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:209
                                                                              • Arel::Visitors::SQLite#visit_Arel_Nodes_SelectCore $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:230
                                                                                • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:785
                                                                                • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:785
                                                                                • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:240
                                                                                  • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:240
                                                                                    • Arel::Visitors::SQLite#block in visit_Arel_Nodes_SelectCore $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:240
                                                                                      • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                        • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                        • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                        • Arel::Visitors::SQLite#visit_Arel_Nodes_Count $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:475
                                                                                          • Arel::Visitors::SQLite#aggregate $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:808
                                                                                            • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                            • Arel::Visitors::SQLite#inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:791
                                                                                              • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                              • Enumerable#inject $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                • Enumerator#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                  • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                    • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                      • Arel::Visitors::SQLite#block in inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                        • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                          • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                          • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                          • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                          • Arel::Visitors::SQLite#literal $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:720
                                                                                                            • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:720
                                                                                                            • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                            • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                • Arel::Nodes::JoinSource#empty? $GemPath0/gems/arel-6.0.4/lib/arel/nodes/join_source.rb:13
                                                                                • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                  • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                  • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                  • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                  • Arel::Visitors::SQLite#visit_Arel_Nodes_JoinSource $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:555
                                                                                    • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                      • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                      • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                      • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                      • Arel::Visitors::SQLite#visit_Arel_Table $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:620
                                                                                        • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:775
                                                                                          • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:776
                                                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:50
                                                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                              • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                              • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                        • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                    • Array#any? $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:559
                                                                                • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:254
                                                                                  • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:254
                                                                                    • Arel::Visitors::SQLite#block in visit_Arel_Nodes_SelectCore $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:254
                                                                                      • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                        • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                        • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                        • Arel::Visitors::SQLite#visit_Arel_Nodes_And $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:649
                                                                                          • Arel::Visitors::SQLite#inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:791
                                                                                            • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                            • Enumerable#inject $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                              • Enumerator#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                  • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                    • Arel::Visitors::SQLite#block in inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                      • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                        • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                        • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                        • Arel::Visitors::SQLite#visit_Arel_Nodes_In $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:628
                                                                                                          • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:629
                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Attributes_Attribute $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:709
                                                                                                              • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                              • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                              • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:775
                                                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:776
                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:50
                                                                                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                    • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                    • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                              • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:711
                                                                                                              • Arel::Visitors::SQLite#quote_column_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:780
                                                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:781
                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                  • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                  • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                            • Arel::Visitors::SQLite#visit_Array $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:765
                                                                                                              • Arel::Visitors::SQLite#inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:791
                                                                                                                • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                • Enumerable#inject $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                  • Enumerator#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                    • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                      • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                        • Arel::Visitors::SQLite#block in inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Nodes_Casted $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:150
                                                                                                                              • Arel::Visitors::SQLite#quoted $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:731
                                                                                                                                • Arel::Visitors::SQLite#column_for $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:170
                                                                                                                                  • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:172
                                                                                                                                  • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:172
                                                                                                                                  • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:173
                                                                                                                                  • Arel::Visitors::SQLite#table_exists? $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:166
                                                                                                                                    • Arel::Visitors::SQLite#schema_cache $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:72
                                                                                                                                    • ActiveRecord::ConnectionAdapters::SchemaCache#table_exists? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:21
                                                                                                                                      • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:23
                                                                                                                                  • Arel::Visitors::SQLite#column_cache $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:180
                                                                                                                                    • Arel::Visitors::SQLite#schema_cache $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:72
                                                                                                                                    • ActiveRecord::ConnectionAdapters::SchemaCache#columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:48
                                                                                                                                • Arel::Visitors::SQLite#quote $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:770
                                                                                                                                  • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:771
                                                                                                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:9
                                                                                                                                    • Kernel#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:11
                                                                                                                                    • ActiveRecord::Type::Integer#type_cast_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:20
                                                                                                                                      • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:8
                                                                                                                                        • TrueClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:10
                                                                                                                                        • FalseClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:11
                                                                                                                                        • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:12
                                                                                                                                        • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:97
                                                                                                                                          • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:98
                                                                                                                                          • ActiveRecord::Type::Integer#cast_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:34
                                                                                                                                            • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:39
                                                                                                                                      • ActiveRecord::Type::Integer#ensure_in_range $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:43
                                                                                                                                        • Range#cover? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                                                                                          • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                                                                                          • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_quote $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:207
                                                                                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:209
                                                                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_quote $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:100
                                                                                                                                        • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:102
                                                                                                                                        • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:102
                                                                                                                                        • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:102
                                                                                                                                        • TrueClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:104
                                                                                                                                        • FalseClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:105
                                                                                                                                        • NilClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:106
                                                                                                                                        • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:108
                                                                                                                                        • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:109
                                                                                                                                        • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                          • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                                                            • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                                                              • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:151
                                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                        • Arel::Visitors::SQLite#block in inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Nodes_Casted $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:150
                                                                                                                              • Arel::Visitors::SQLite#quoted $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:731
                                                                                                                                • Arel::Visitors::SQLite#column_for $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:170
                                                                                                                                  • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:172
                                                                                                                                  • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:172
                                                                                                                                  • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:173
                                                                                                                                  • Arel::Visitors::SQLite#table_exists? $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:166
                                                                                                                                    • Arel::Visitors::SQLite#schema_cache $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:72
                                                                                                                                    • ActiveRecord::ConnectionAdapters::SchemaCache#table_exists? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:21
                                                                                                                                      • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:23
                                                                                                                                  • Arel::Visitors::SQLite#column_cache $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:180
                                                                                                                                    • Arel::Visitors::SQLite#schema_cache $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:72
                                                                                                                                    • ActiveRecord::ConnectionAdapters::SchemaCache#columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:48
                                                                                                                                • Arel::Visitors::SQLite#quote $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:770
                                                                                                                                  • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:771
                                                                                                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:9
                                                                                                                                    • Kernel#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:11
                                                                                                                                    • ActiveRecord::Type::Integer#type_cast_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:20
                                                                                                                                      • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:8
                                                                                                                                        • TrueClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:10
                                                                                                                                        • FalseClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:11
                                                                                                                                        • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:12
                                                                                                                                        • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:97
                                                                                                                                          • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:98
                                                                                                                                          • ActiveRecord::Type::Integer#cast_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:34
                                                                                                                                            • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:39
                                                                                                                                      • ActiveRecord::Type::Integer#ensure_in_range $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:43
                                                                                                                                        • Range#cover? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                                                                                          • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                                                                                          • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_quote $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:207
                                                                                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:209
                                                                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_quote $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:100
                                                                                                                                        • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:102
                                                                                                                                        • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:102
                                                                                                                                        • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:102
                                                                                                                                        • TrueClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:104
                                                                                                                                        • FalseClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:105
                                                                                                                                        • NilClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:106
                                                                                                                                        • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:108
                                                                                                                                        • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:109
                                                                                                                                        • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                          • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                                                            • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                                                              • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:151
                                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:785
                                                                        • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:785
                                                                        • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:785
                                                                        • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:785
                                                                • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:13
                                                                  • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:13
                                                                    • Array#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:13
                                                                • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#compile $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:133
                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#compile $GemPath0/gems/arel-6.0.4/lib/arel/collectors/sql_string.rb:19
                                                                    • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#value $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:8
                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#select $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:355
                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#exec_query $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:276
                                                                  • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:277
                                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#log $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:477
                                                                    • Kernel#object_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:482
                                                                    • ActiveSupport::Notifications::Instrumenter#instrument $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:17
                                                                      • ActiveSupport::Notifications::Instrumenter#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:30
                                                                        • ActiveSupport::Notifications::Fanout#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:41
                                                                          • ActiveSupport::Notifications::Fanout#listeners_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:53
                                                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                          • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:42
                                                                            • ActiveSupport::Notifications::Fanout#block in start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:42
                                                                              • ActiveSupport::Notifications::Fanout::Subscribers::Evented#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:97
                                                                                • ActiveRecord::LogSubscriber#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:78
                                                                                  • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                                                    • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                  • ActiveRecord::LogSubscriber#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:85
                                                                                    • #<Class:Time>#now $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:86
                                                                                      • Time#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:86
                                                                                    • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:86
                                                                                      • ActiveSupport::Notifications::Event#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:50
                                                                                        • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:52
                                                                                          • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:52
                                                                                            • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:52
                                                                                    • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:105
                                                                                      • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                        • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                        • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                      • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:121
                                                                                    • Array#last $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:87
                                                                                    • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:105
                                                                                      • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                        • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                        • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                      • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:121
                                                                                    • Array#push $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:90
                                                                            • ActiveSupport::Notifications::Fanout#block in start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:42
                                                                              • ActiveSupport::Notifications::Fanout::Subscribers::Evented#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:97
                                                                                • ActiveRecord::ExplainSubscriber#start $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/explain_subscriber.rb:6
                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in log $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:484
                                                                        • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in exec_query $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:281
                                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#without_prepared_statement? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:494
                                                                          • SQLite3::Database#prepare $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:90
                                                                            • Class#new $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:91
                                                                              • SQLite3::Statement#initialize $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:91
                                                                            • Kernel#block_given? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:92
                                                                          • SQLite3::Statement#columns $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:101
                                                                            • SQLite3::Statement#get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:135
                                                                              • SQLite3::Statement#column_count $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                              • Class#new $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                • Array#initialize $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                  • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                    • SQLite3::Statement#column_name $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:137
                                                                              • SQLite3::Statement#column_count $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                              • Class#new $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                • Array#initialize $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                  • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                    • SQLite3::Statement#column_decltype $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:140
                                                                          • Enumerable#to_a $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:287
                                                                            • SQLite3::Statement#each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:106
                                                                              • Kernel#loop $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                                                • SQLite3::Statement#block in each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                                                  • SQLite3::Statement#step $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                    • SQLite3::Database#encoding $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                  • SQLite3::Statement#done? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:109
                                                                                • SQLite3::Statement#block in each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                                                  • SQLite3::Statement#step $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                    • SQLite3::Database#encoding $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                  • SQLite3::Statement#done? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:109
                                                                          • SQLite3::Statement#close $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:289
                                                                          • Array#to_a $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:302
                                                                          • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:302
                                                                            • ActiveRecord::Result#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:38
                                                                      • ActiveSupport::Notifications::Instrumenter#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:35
                                                                        • ActiveSupport::Notifications::Fanout#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:45
                                                                          • ActiveSupport::Notifications::Fanout#listeners_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:53
                                                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                          • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:46
                                                                            • ActiveSupport::Notifications::Fanout#block in finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:46
                                                                              • ActiveSupport::Notifications::Fanout::Subscribers::Evented#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:101
                                                                                • ActiveRecord::LogSubscriber#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:82
                                                                                  • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                                                    • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                  • ActiveRecord::LogSubscriber#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:93
                                                                                    • #<Class:Time>#now $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:94
                                                                                      • Time#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:94
                                                                                    • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:105
                                                                                      • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                        • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                        • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                      • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:121
                                                                                    • Array#pop $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:95
                                                                                    • Hash#merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:97
                                                                                    • String#split $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:99
                                                                                    • Array#first $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:99
                                                                                    • ActiveRecord::LogSubscriber#sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:37
                                                                                      • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:38
                                                                                      • ActiveRecord::LogSubscriber.runtime $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:9
                                                                                        • ActiveRecord::RuntimeRegistry.sql_runtime $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                          • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                            • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                            • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                      • ActiveSupport::Notifications::Event#duration $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:60
                                                                                        • Time#minus_with_coercion $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:249
                                                                                          • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:250
                                                                                          • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:251
                                                                                          • Time#minus_with_duration $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:236
                                                                                            • ActiveSupport::Duration.=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/duration.rb:93
                                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/duration.rb:94
                                                                                            • Time#- $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:240
                                                                                              • Integer#fdiv $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:240
                                                                                      • ActiveRecord::LogSubscriber.runtime= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:5
                                                                                        • ActiveRecord::RuntimeRegistry.sql_runtime= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:19
                                                                                          • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                            • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                            • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                      • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                                                        • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                      • ActiveSupport::Logger#debug? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:93
                                                                                        • ActiveSupport::Logger#level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:28
                                                                                          • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:16
                                                                                            • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:12
                                                                                              • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                                              • BasicObject#__id__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                      • Array#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:43
                                                                                      • NilClass#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:45
                                                                                      • ActiveSupport::Notifications::Event#duration $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:60
                                                                                      • Float#round $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:45
                                                                                      • Float#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                        • Float#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                          • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                          • Float#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                      • ActiveRecord::LogSubscriber#odd? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:65
                                                                                      • ActiveRecord::LogSubscriber#color $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:102
                                                                                        • ActiveRecord::LogSubscriber#colorize_logging $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:67
                                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:104
                                                                                      • NilClass#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:62
                                                                                      • ActiveRecord::LogSubscriber#debug $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:92
                                                                                        • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                                                          • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                        • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                                                          • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                        • ActiveSupport::Logger#debug /usr/local/lib/ruby/2.5.0/logger.rb:492
                                                                                          • ActiveSupport::Logger#add -> block (2 levels) in broadcast $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:25
                                                                                            • ActiveSupport::Logger#block (2 levels) in broadcast $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:25
                                                                                              • ActiveSupport::Logger#add $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:86
                                                                                                • Kernel#nil? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:87
                                                                                                • ActiveSupport::Logger#level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:28
                                                                                                  • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:16
                                                                                                    • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:12
                                                                                                      • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                                                      • BasicObject#__id__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                • ActiveSupport::Logger#add /usr/local/lib/ruby/2.5.0/logger.rb:455
                                                                                                  • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:457
                                                                                                  • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:460
                                                                                                  • NilClass#nil? /usr/local/lib/ruby/2.5.0/logger.rb:463
                                                                                                  • Kernel#block_given? /usr/local/lib/ruby/2.5.0/logger.rb:464
                                                                                                  • ActiveSupport::Logger#format_severity /usr/local/lib/ruby/2.5.0/logger.rb:579
                                                                                                  • #<Class:Time>#now /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                                                    • Time#initialize /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                                                  • ActiveSupport::Logger#format_message /usr/local/lib/ruby/2.5.0/logger.rb:583
                                                                                                    • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:102
                                                                                                      • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:103
                                                                                                  • Logger::LogDevice#write /usr/local/lib/ruby/2.5.0/logger.rb:686
                                                                                                    • Logger::LogDevice#mon_synchronize /usr/local/lib/ruby/2.5.0/monitor.rb:223
                                                                                                      • Logger::LogDevice#mon_enter /usr/local/lib/ruby/2.5.0/monitor.rb:183
                                                                                                        • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:184
                                                                                                        • Thread::Mutex#lock /usr/local/lib/ruby/2.5.0/monitor.rb:185
                                                                                                        • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:186
                                                                                                      • Logger::LogDevice#block in write /usr/local/lib/ruby/2.5.0/logger.rb:688
                                                                                                        • IO#write /usr/local/lib/ruby/2.5.0/logger.rb:697
                                                                                                      • Logger::LogDevice#mon_exit /usr/local/lib/ruby/2.5.0/monitor.rb:195
                                                                                                        • Logger::LogDevice#mon_check_owner /usr/local/lib/ruby/2.5.0/monitor.rb:259
                                                                                                          • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:260
                                                                                                        • Thread::Mutex#unlock /usr/local/lib/ruby/2.5.0/monitor.rb:200
                                                                                              • ActiveSupport::Logger#add $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:86
                                                                                                • Kernel#nil? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:87
                                                                                                • ActiveSupport::Logger#level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:28
                                                                                                  • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:16
                                                                                                    • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:12
                                                                                                      • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                                                      • BasicObject#__id__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                • ActiveSupport::Logger#add /usr/local/lib/ruby/2.5.0/logger.rb:455
                                                                                                  • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:457
                                                                                                  • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:460
                                                                                                  • NilClass#nil? /usr/local/lib/ruby/2.5.0/logger.rb:463
                                                                                                  • Kernel#block_given? /usr/local/lib/ruby/2.5.0/logger.rb:464
                                                                                                  • ActiveSupport::Logger#format_severity /usr/local/lib/ruby/2.5.0/logger.rb:579
                                                                                                  • #<Class:Time>#now /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                                                    • Time#initialize /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                                                  • ActiveSupport::Logger#format_message /usr/local/lib/ruby/2.5.0/logger.rb:583
                                                                                                    • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:20
                                                                                                      • ActiveSupport::Logger::SimpleFormatter#tags_text $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:50
                                                                                                        • ActiveSupport::Logger::SimpleFormatter#current_tags $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:45
                                                                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:46
                                                                                                          • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:46
                                                                                                        • Array#any? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:52
                                                                                                      • NilClass#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:21
                                                                                                      • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:102
                                                                                                        • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:103
                                                                                                  • Logger::LogDevice#write /usr/local/lib/ruby/2.5.0/logger.rb:686
                                                                                                    • Logger::LogDevice#mon_synchronize /usr/local/lib/ruby/2.5.0/monitor.rb:223
                                                                                                      • Logger::LogDevice#mon_enter /usr/local/lib/ruby/2.5.0/monitor.rb:183
                                                                                                        • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:184
                                                                                                        • Thread::Mutex#lock /usr/local/lib/ruby/2.5.0/monitor.rb:185
                                                                                                        • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:186
                                                                                                      • Logger::LogDevice#block in write /usr/local/lib/ruby/2.5.0/logger.rb:688
                                                                                                        • IO#write /usr/local/lib/ruby/2.5.0/logger.rb:697
                                                                                                      • Logger::LogDevice#mon_exit /usr/local/lib/ruby/2.5.0/monitor.rb:195
                                                                                                        • Logger::LogDevice#mon_check_owner /usr/local/lib/ruby/2.5.0/monitor.rb:259
                                                                                                          • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:260
                                                                                                        • Thread::Mutex#unlock /usr/local/lib/ruby/2.5.0/monitor.rb:200
                                                                            • ActiveSupport::Notifications::Fanout#block in finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:46
                                                                              • ActiveSupport::Notifications::Fanout::Subscribers::Evented#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:101
                                                                                • ActiveRecord::ExplainSubscriber#finish $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/explain_subscriber.rb:10
                                                                                  • ActiveRecord::ExplainRegistry.collect? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:50
                                                                                    • ActiveRecord::ExplainRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                      • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                      • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                    • ActiveRecord::ExplainRegistry#collect? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/explain_registry.rb:21
                                                          • Enumerable#first $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/calculations.rb:271
                                                            • ActiveRecord::Result#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:49
                                                              • Kernel#block_given? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:50
                                                              • ActiveRecord::Result#hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:105
                                                                • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                  • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                    • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                      • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                        • String#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                    • String#freeze $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:111
                                                                  • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:111
                                                              • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:51
                                                                • ActiveRecord::Result#block in each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:51
                                                          • Hash#values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/calculations.rb:272
                                                          • Array#first $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/calculations.rb:272
                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/calculations.rb:273
                                                            • Book::ActiveRecord_Relation#block in execute_simple_calculation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/calculations.rb:273
                                                              • Book::ActiveRecord_Relation#type_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/calculations.rb:372
                                                                • Kernel#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/calculations.rb:373
                                                                • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/calculations.rb:373
                                                                • String#split $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/calculations.rb:373
                                                                • Array#last $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/calculations.rb:373
                                                                • Book.type_for_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:243
                                                                  • Book.column_types $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:237
                                                          • Book::ActiveRecord_Relation#type_cast_calculated_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/calculations.rb:377
                                                            • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/calculations.rb:379
                                                  • Kernel#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:269
                                                  • Numeric#zero? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:269
                                                • Book::ActiveRecord_Relation#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:46
                                                  • Book::ActiveRecord_Relation#to_a $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:242
                                                    • Book::ActiveRecord_Relation#load $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:514
                                                      • Book::ActiveRecord_Relation#exec_queries $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:638
                                                        • Book::ActiveRecord_Relation#eager_loading? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:584
                                                          • Book::ActiveRecord_Relation#eager_load_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                          • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:586
                                                          • Book::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                          • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:587
                                                          • Book::ActiveRecord_Relation#joined_includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:594
                                                            • Book::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                            • Book::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                            • Array#& $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:595
                                                          • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:587
                                                          • Book::ActiveRecord_Relation#references_eager_loaded_tables? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:658
                                                            • Book::ActiveRecord_Relation#arel $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:857
                                                            • Arel::SelectManager#join_sources $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:229
                                                            • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:659
                                                            • Array#flatten $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:670
                                                            • Array#compact $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:670
                                                            • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:670
                                                              • Book::ActiveRecord_Relation#block in references_eager_loaded_tables? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:670
                                                                • String#downcase $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:670
                                                            • Array#uniq $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:670
                                                            • Book::ActiveRecord_Relation#references_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                            • Array#- $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:672
                                                            • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:672
                                                        • Book::ActiveRecord_Relation#arel $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:857
                                                        • Book::ActiveRecord_Relation#arel $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:857
                                                        • Book::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                        • Book.find_by_sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:38
                                                          • Book.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                                            • Book.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                                              • Book.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                                • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                  • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                    • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                    • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                • Book.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                  • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                              • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                                                • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                                  • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                                    • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                  • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                                                  • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                                                    • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                                                      • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                        • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                          • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                          • Book.table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:125
                                                          • Book.sanitize_sql_for_conditions $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/sanitization.rb:22
                                                            • Arel::SelectManager#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:16
                                                              • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:17
                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/sanitization.rb:26
                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/sanitization.rb:27
                                                          • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:39
                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#select_all $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/query_cache.rb:64
                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#select_all $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:30
                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#binds_from_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:385
                                                                • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:386
                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#to_sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:10
                                                                • Kernel#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:11
                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#collector $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:138
                                                                  • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:140
                                                                    • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#initialize $GemPath0/gems/arel-6.0.4/lib/arel/collectors/sql_string.rb:8
                                                                      • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#initialize $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:4
                                                                • Arel::Visitors::SQLite#accept $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:6
                                                                  • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                    • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                    • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                    • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                    • Arel::Visitors::SQLite#visit_Arel_Nodes_SelectStatement $GemPath0/gems/arel-6.0.4/lib/arel/visitors/sqlite.rb:11
                                                                      • Arel::Visitors::SQLite#visit_Arel_Nodes_SelectStatement $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:203
                                                                        • Enumerable#inject $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:209
                                                                          • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:209
                                                                            • Arel::Visitors::SQLite#block in visit_Arel_Nodes_SelectStatement $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:209
                                                                              • Arel::Visitors::SQLite#visit_Arel_Nodes_SelectCore $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:230
                                                                                • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:785
                                                                                • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:785
                                                                                • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:240
                                                                                  • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:240
                                                                                    • Arel::Visitors::SQLite#block in visit_Arel_Nodes_SelectCore $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:240
                                                                                      • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                        • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                        • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                        • Arel::Visitors::SQLite#visit_Arel_Attributes_Attribute $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:709
                                                                                          • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                          • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                          • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:775
                                                                                            • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:776
                                                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:50
                                                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                          • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:711
                                                                                          • Arel::Visitors::SQLite#quote_column_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:780
                                                                                            • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:781
                                                                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                • Arel::Nodes::JoinSource#empty? $GemPath0/gems/arel-6.0.4/lib/arel/nodes/join_source.rb:13
                                                                                • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                  • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                  • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                  • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                  • Arel::Visitors::SQLite#visit_Arel_Nodes_JoinSource $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:555
                                                                                    • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                      • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                      • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                      • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                      • Arel::Visitors::SQLite#visit_Arel_Table $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:620
                                                                                        • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:775
                                                                                          • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:776
                                                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:50
                                                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                              • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                              • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                        • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                    • Array#any? $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:559
                                                                                • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:254
                                                                                  • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:254
                                                                                    • Arel::Visitors::SQLite#block in visit_Arel_Nodes_SelectCore $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:254
                                                                                      • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                        • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                        • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                        • Arel::Visitors::SQLite#visit_Arel_Nodes_And $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:649
                                                                                          • Arel::Visitors::SQLite#inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:791
                                                                                            • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                            • Enumerable#inject $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                              • Enumerator#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                  • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                    • Arel::Visitors::SQLite#block in inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                      • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                        • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                        • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                        • Arel::Visitors::SQLite#visit_Arel_Nodes_In $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:628
                                                                                                          • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:629
                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Attributes_Attribute $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:709
                                                                                                              • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                              • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                              • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:775
                                                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:776
                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:50
                                                                                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                    • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                    • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                              • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:711
                                                                                                              • Arel::Visitors::SQLite#quote_column_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:780
                                                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:781
                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                  • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                  • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                            • Arel::Visitors::SQLite#visit_Array $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:765
                                                                                                              • Arel::Visitors::SQLite#inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:791
                                                                                                                • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                • Enumerable#inject $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                  • Enumerator#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                    • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                      • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                        • Arel::Visitors::SQLite#block in inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Nodes_Casted $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:150
                                                                                                                              • Arel::Visitors::SQLite#quoted $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:731
                                                                                                                                • Arel::Visitors::SQLite#column_for $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:170
                                                                                                                                  • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:172
                                                                                                                                  • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:172
                                                                                                                                  • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:173
                                                                                                                                  • Arel::Visitors::SQLite#table_exists? $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:166
                                                                                                                                    • Arel::Visitors::SQLite#schema_cache $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:72
                                                                                                                                    • ActiveRecord::ConnectionAdapters::SchemaCache#table_exists? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:21
                                                                                                                                      • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:23
                                                                                                                                  • Arel::Visitors::SQLite#column_cache $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:180
                                                                                                                                    • Arel::Visitors::SQLite#schema_cache $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:72
                                                                                                                                    • ActiveRecord::ConnectionAdapters::SchemaCache#columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:48
                                                                                                                                • Arel::Visitors::SQLite#quote $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:770
                                                                                                                                  • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:771
                                                                                                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:9
                                                                                                                                    • Kernel#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:11
                                                                                                                                    • ActiveRecord::Type::Integer#type_cast_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:20
                                                                                                                                      • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:8
                                                                                                                                        • TrueClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:10
                                                                                                                                        • FalseClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:11
                                                                                                                                        • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:12
                                                                                                                                        • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:97
                                                                                                                                          • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:98
                                                                                                                                          • ActiveRecord::Type::Integer#cast_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:34
                                                                                                                                            • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:39
                                                                                                                                      • ActiveRecord::Type::Integer#ensure_in_range $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:43
                                                                                                                                        • Range#cover? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                                                                                          • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                                                                                          • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_quote $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:207
                                                                                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:209
                                                                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_quote $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:100
                                                                                                                                        • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:102
                                                                                                                                        • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:102
                                                                                                                                        • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:102
                                                                                                                                        • TrueClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:104
                                                                                                                                        • FalseClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:105
                                                                                                                                        • NilClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:106
                                                                                                                                        • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:108
                                                                                                                                        • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:109
                                                                                                                                        • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                          • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                                                            • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                                                              • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:151
                                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                        • Arel::Visitors::SQLite#block in inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Nodes_Casted $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:150
                                                                                                                              • Arel::Visitors::SQLite#quoted $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:731
                                                                                                                                • Arel::Visitors::SQLite#column_for $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:170
                                                                                                                                  • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:172
                                                                                                                                  • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:172
                                                                                                                                  • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:173
                                                                                                                                  • Arel::Visitors::SQLite#table_exists? $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:166
                                                                                                                                    • Arel::Visitors::SQLite#schema_cache $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:72
                                                                                                                                    • ActiveRecord::ConnectionAdapters::SchemaCache#table_exists? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:21
                                                                                                                                      • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:23
                                                                                                                                  • Arel::Visitors::SQLite#column_cache $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:180
                                                                                                                                    • Arel::Visitors::SQLite#schema_cache $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:72
                                                                                                                                    • ActiveRecord::ConnectionAdapters::SchemaCache#columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:48
                                                                                                                                • Arel::Visitors::SQLite#quote $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:770
                                                                                                                                  • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:771
                                                                                                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:9
                                                                                                                                    • Kernel#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:11
                                                                                                                                    • ActiveRecord::Type::Integer#type_cast_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:20
                                                                                                                                      • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:8
                                                                                                                                        • TrueClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:10
                                                                                                                                        • FalseClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:11
                                                                                                                                        • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:12
                                                                                                                                        • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:97
                                                                                                                                          • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:98
                                                                                                                                          • ActiveRecord::Type::Integer#cast_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:34
                                                                                                                                            • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:39
                                                                                                                                      • ActiveRecord::Type::Integer#ensure_in_range $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:43
                                                                                                                                        • Range#cover? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                                                                                          • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                                                                                          • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_quote $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:207
                                                                                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:209
                                                                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_quote $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:100
                                                                                                                                        • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:102
                                                                                                                                        • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:102
                                                                                                                                        • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:102
                                                                                                                                        • TrueClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:104
                                                                                                                                        • FalseClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:105
                                                                                                                                        • NilClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:106
                                                                                                                                        • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:108
                                                                                                                                        • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:109
                                                                                                                                        • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                          • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                                                            • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                                                              • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:151
                                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:785
                                                                        • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:785
                                                                        • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:785
                                                                        • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:785
                                                                • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:13
                                                                  • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:13
                                                                    • Array#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:13
                                                                • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#compile $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:133
                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#compile $GemPath0/gems/arel-6.0.4/lib/arel/collectors/sql_string.rb:19
                                                                    • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#value $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:8
                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#select $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:355
                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#exec_query $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:276
                                                                  • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:277
                                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#log $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:477
                                                                    • Kernel#object_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:482
                                                                    • ActiveSupport::Notifications::Instrumenter#instrument $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:17
                                                                      • ActiveSupport::Notifications::Instrumenter#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:30
                                                                        • ActiveSupport::Notifications::Fanout#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:41
                                                                          • ActiveSupport::Notifications::Fanout#listeners_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:53
                                                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                          • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:42
                                                                            • ActiveSupport::Notifications::Fanout#block in start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:42
                                                                              • ActiveSupport::Notifications::Fanout::Subscribers::Evented#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:97
                                                                                • ActiveRecord::LogSubscriber#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:78
                                                                                  • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                                                    • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                  • ActiveRecord::LogSubscriber#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:85
                                                                                    • #<Class:Time>#now $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:86
                                                                                      • Time#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:86
                                                                                    • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:86
                                                                                      • ActiveSupport::Notifications::Event#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:50
                                                                                        • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:52
                                                                                          • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:52
                                                                                            • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:52
                                                                                    • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:105
                                                                                      • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                        • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                        • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                      • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:121
                                                                                    • Array#last $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:87
                                                                                    • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:105
                                                                                      • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                        • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                        • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                      • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:121
                                                                                    • Array#push $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:90
                                                                            • ActiveSupport::Notifications::Fanout#block in start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:42
                                                                              • ActiveSupport::Notifications::Fanout::Subscribers::Evented#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:97
                                                                                • ActiveRecord::ExplainSubscriber#start $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/explain_subscriber.rb:6
                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in log $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:484
                                                                        • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in exec_query $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:281
                                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#without_prepared_statement? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:494
                                                                          • SQLite3::Database#prepare $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:90
                                                                            • Class#new $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:91
                                                                              • SQLite3::Statement#initialize $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:91
                                                                            • Kernel#block_given? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:92
                                                                          • SQLite3::Statement#columns $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:101
                                                                            • SQLite3::Statement#get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:135
                                                                              • SQLite3::Statement#column_count $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                              • Class#new $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                • Array#initialize $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                  • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                    • SQLite3::Statement#column_name $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:137
                                                                                  • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                    • SQLite3::Statement#column_name $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:137
                                                                                  • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                    • SQLite3::Statement#column_name $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:137
                                                                                  • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                    • SQLite3::Statement#column_name $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:137
                                                                                  • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                    • SQLite3::Statement#column_name $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:137
                                                                                  • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                    • SQLite3::Statement#column_name $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:137
                                                                                  • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                    • SQLite3::Statement#column_name $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:137
                                                                              • SQLite3::Statement#column_count $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                              • Class#new $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                • Array#initialize $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                  • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                    • SQLite3::Statement#column_decltype $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:140
                                                                                  • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                    • SQLite3::Statement#column_decltype $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:140
                                                                                  • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                    • SQLite3::Statement#column_decltype $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:140
                                                                                  • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                    • SQLite3::Statement#column_decltype $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:140
                                                                                  • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                    • SQLite3::Statement#column_decltype $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:140
                                                                                  • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                    • SQLite3::Statement#column_decltype $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:140
                                                                                  • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                    • SQLite3::Statement#column_decltype $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:140
                                                                          • Enumerable#to_a $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:287
                                                                            • SQLite3::Statement#each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:106
                                                                              • Kernel#loop $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                                                • SQLite3::Statement#block in each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                                                  • SQLite3::Statement#step $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                    • SQLite3::Database#encoding $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                  • SQLite3::Statement#done? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:109
                                                                                • SQLite3::Statement#block in each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                                                  • SQLite3::Statement#step $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                    • SQLite3::Database#encoding $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                  • SQLite3::Statement#done? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:109
                                                                                • SQLite3::Statement#block in each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                                                  • SQLite3::Statement#step $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                    • SQLite3::Database#encoding $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                  • SQLite3::Statement#done? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:109
                                                                          • SQLite3::Statement#close $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:289
                                                                          • Array#to_a $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:302
                                                                          • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:302
                                                                            • ActiveRecord::Result#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:38
                                                                      • ActiveSupport::Notifications::Instrumenter#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:35
                                                                        • ActiveSupport::Notifications::Fanout#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:45
                                                                          • ActiveSupport::Notifications::Fanout#listeners_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:53
                                                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                          • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:46
                                                                            • ActiveSupport::Notifications::Fanout#block in finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:46
                                                                              • ActiveSupport::Notifications::Fanout::Subscribers::Evented#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:101
                                                                                • ActiveRecord::LogSubscriber#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:82
                                                                                  • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                                                    • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                  • ActiveRecord::LogSubscriber#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:93
                                                                                    • #<Class:Time>#now $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:94
                                                                                      • Time#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:94
                                                                                    • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:105
                                                                                      • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                        • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                        • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                      • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:121
                                                                                    • Array#pop $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:95
                                                                                    • Hash#merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:97
                                                                                    • String#split $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:99
                                                                                    • Array#first $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:99
                                                                                    • ActiveRecord::LogSubscriber#sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:37
                                                                                      • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:38
                                                                                      • ActiveRecord::LogSubscriber.runtime $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:9
                                                                                        • ActiveRecord::RuntimeRegistry.sql_runtime $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                          • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                            • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                            • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                      • ActiveSupport::Notifications::Event#duration $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:60
                                                                                        • Time#minus_with_coercion $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:249
                                                                                          • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:250
                                                                                          • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:251
                                                                                          • Time#minus_with_duration $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:236
                                                                                            • ActiveSupport::Duration.=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/duration.rb:93
                                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/duration.rb:94
                                                                                            • Time#- $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:240
                                                                                              • Integer#fdiv $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:240
                                                                                      • ActiveRecord::LogSubscriber.runtime= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:5
                                                                                        • ActiveRecord::RuntimeRegistry.sql_runtime= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:19
                                                                                          • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                            • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                            • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                      • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                                                        • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                      • ActiveSupport::Logger#debug? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:93
                                                                                        • ActiveSupport::Logger#level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:28
                                                                                          • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:16
                                                                                            • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:12
                                                                                              • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                                              • BasicObject#__id__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                      • Array#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:43
                                                                                      • ActiveSupport::Notifications::Event#duration $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:60
                                                                                      • Float#round $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:45
                                                                                      • Float#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                        • Float#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                          • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                          • Float#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                      • ActiveRecord::LogSubscriber#odd? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:65
                                                                                      • ActiveRecord::LogSubscriber#color $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:102
                                                                                        • ActiveRecord::LogSubscriber#colorize_logging $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:67
                                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:104
                                                                                      • ActiveRecord::LogSubscriber#color $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:102
                                                                                        • ActiveRecord::LogSubscriber#colorize_logging $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:67
                                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:104
                                                                                        • NilClass#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:106
                                                                                      • NilClass#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:62
                                                                                      • ActiveRecord::LogSubscriber#debug $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:92
                                                                                        • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                                                          • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                        • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                                                          • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                        • ActiveSupport::Logger#debug /usr/local/lib/ruby/2.5.0/logger.rb:492
                                                                                          • ActiveSupport::Logger#add -> block (2 levels) in broadcast $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:25
                                                                                            • ActiveSupport::Logger#block (2 levels) in broadcast $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:25
                                                                                              • ActiveSupport::Logger#add $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:86
                                                                                                • Kernel#nil? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:87
                                                                                                • ActiveSupport::Logger#level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:28
                                                                                                  • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:16
                                                                                                    • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:12
                                                                                                      • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                                                      • BasicObject#__id__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                • ActiveSupport::Logger#add /usr/local/lib/ruby/2.5.0/logger.rb:455
                                                                                                  • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:457
                                                                                                  • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:460
                                                                                                  • NilClass#nil? /usr/local/lib/ruby/2.5.0/logger.rb:463
                                                                                                  • Kernel#block_given? /usr/local/lib/ruby/2.5.0/logger.rb:464
                                                                                                  • ActiveSupport::Logger#format_severity /usr/local/lib/ruby/2.5.0/logger.rb:579
                                                                                                  • #<Class:Time>#now /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                                                    • Time#initialize /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                                                  • ActiveSupport::Logger#format_message /usr/local/lib/ruby/2.5.0/logger.rb:583
                                                                                                    • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:102
                                                                                                      • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:103
                                                                                                  • Logger::LogDevice#write /usr/local/lib/ruby/2.5.0/logger.rb:686
                                                                                                    • Logger::LogDevice#mon_synchronize /usr/local/lib/ruby/2.5.0/monitor.rb:223
                                                                                                      • Logger::LogDevice#mon_enter /usr/local/lib/ruby/2.5.0/monitor.rb:183
                                                                                                        • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:184
                                                                                                        • Thread::Mutex#lock /usr/local/lib/ruby/2.5.0/monitor.rb:185
                                                                                                        • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:186
                                                                                                      • Logger::LogDevice#block in write /usr/local/lib/ruby/2.5.0/logger.rb:688
                                                                                                        • IO#write /usr/local/lib/ruby/2.5.0/logger.rb:697
                                                                                                      • Logger::LogDevice#mon_exit /usr/local/lib/ruby/2.5.0/monitor.rb:195
                                                                                                        • Logger::LogDevice#mon_check_owner /usr/local/lib/ruby/2.5.0/monitor.rb:259
                                                                                                          • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:260
                                                                                                        • Thread::Mutex#unlock /usr/local/lib/ruby/2.5.0/monitor.rb:200
                                                                                              • ActiveSupport::Logger#add $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:86
                                                                                                • Kernel#nil? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:87
                                                                                                • ActiveSupport::Logger#level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:28
                                                                                                  • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:16
                                                                                                    • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:12
                                                                                                      • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                                                      • BasicObject#__id__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                • ActiveSupport::Logger#add /usr/local/lib/ruby/2.5.0/logger.rb:455
                                                                                                  • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:457
                                                                                                  • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:460
                                                                                                  • NilClass#nil? /usr/local/lib/ruby/2.5.0/logger.rb:463
                                                                                                  • Kernel#block_given? /usr/local/lib/ruby/2.5.0/logger.rb:464
                                                                                                  • ActiveSupport::Logger#format_severity /usr/local/lib/ruby/2.5.0/logger.rb:579
                                                                                                  • #<Class:Time>#now /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                                                    • Time#initialize /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                                                  • ActiveSupport::Logger#format_message /usr/local/lib/ruby/2.5.0/logger.rb:583
                                                                                                    • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:20
                                                                                                      • ActiveSupport::Logger::SimpleFormatter#tags_text $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:50
                                                                                                        • ActiveSupport::Logger::SimpleFormatter#current_tags $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:45
                                                                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:46
                                                                                                          • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:46
                                                                                                        • Array#any? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:52
                                                                                                      • NilClass#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:21
                                                                                                      • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:102
                                                                                                        • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:103
                                                                                                  • Logger::LogDevice#write /usr/local/lib/ruby/2.5.0/logger.rb:686
                                                                                                    • Logger::LogDevice#mon_synchronize /usr/local/lib/ruby/2.5.0/monitor.rb:223
                                                                                                      • Logger::LogDevice#mon_enter /usr/local/lib/ruby/2.5.0/monitor.rb:183
                                                                                                        • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:184
                                                                                                        • Thread::Mutex#lock /usr/local/lib/ruby/2.5.0/monitor.rb:185
                                                                                                        • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:186
                                                                                                      • Logger::LogDevice#block in write /usr/local/lib/ruby/2.5.0/logger.rb:688
                                                                                                        • IO#write /usr/local/lib/ruby/2.5.0/logger.rb:697
                                                                                                      • Logger::LogDevice#mon_exit /usr/local/lib/ruby/2.5.0/monitor.rb:195
                                                                                                        • Logger::LogDevice#mon_check_owner /usr/local/lib/ruby/2.5.0/monitor.rb:259
                                                                                                          • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:260
                                                                                                        • Thread::Mutex#unlock /usr/local/lib/ruby/2.5.0/monitor.rb:200
                                                                            • ActiveSupport::Notifications::Fanout#block in finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:46
                                                                              • ActiveSupport::Notifications::Fanout::Subscribers::Evented#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:101
                                                                                • ActiveRecord::ExplainSubscriber#finish $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/explain_subscriber.rb:10
                                                                                  • ActiveRecord::ExplainRegistry.collect? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:50
                                                                                    • ActiveRecord::ExplainRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                      • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                      • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                    • ActiveRecord::ExplainRegistry#collect? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/explain_registry.rb:21
                                                          • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:40
                                                            • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:40
                                                              • Hash#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:40
                                                          • Book.columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attributes.rb:97
                                                          • Hash#each_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:41
                                                            • Book.block in find_by_sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:41
                                                              • Hash#delete $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:41
                                                            • Book.block in find_by_sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:41
                                                              • Hash#delete $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:41
                                                            • Book.block in find_by_sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:41
                                                              • Hash#delete $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:41
                                                            • Book.block in find_by_sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:41
                                                              • Hash#delete $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:41
                                                            • Book.block in find_by_sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:41
                                                              • Hash#delete $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:41
                                                            • Book.block in find_by_sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:41
                                                              • Hash#delete $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:41
                                                            • Book.block in find_by_sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:41
                                                              • Hash#delete $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:41
                                                          • ActiveSupport::Notifications.instrumenter $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications.rb:185
                                                            • ActiveSupport::Notifications::InstrumentationRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                              • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                              • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                            • ActiveSupport::Notifications::InstrumentationRegistry#instrumenter_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications.rb:205
                                                              • Kernel#hash $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications.rb:206
                                                          • ActiveRecord::Result#length $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:45
                                                          • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:46
                                                          • ActiveSupport::Notifications::Instrumenter#instrument $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:17
                                                            • ActiveSupport::Notifications::Instrumenter#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:30
                                                              • ActiveSupport::Notifications::Fanout#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:41
                                                                • ActiveSupport::Notifications::Fanout#listeners_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:53
                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:42
                                                            • Book.block in find_by_sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:49
                                                              • Enumerable#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:50
                                                                • ActiveRecord::Result#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:49
                                                                  • Kernel#block_given? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:50
                                                                  • ActiveRecord::Result#hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:105
                                                                    • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                      • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                        • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                          • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                            • String#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                        • String#freeze $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                      • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                        • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                          • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                            • String#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                        • String#freeze $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                      • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                        • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                          • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                            • String#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                        • String#freeze $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                      • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                        • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                          • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                            • String#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                        • String#freeze $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                      • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                        • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                          • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                            • String#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                        • String#freeze $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                      • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                        • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                          • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                            • String#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                        • String#freeze $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                      • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                        • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                          • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                            • String#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                        • String#freeze $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                    • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:111
                                                                      • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:111
                                                                      • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:111
                                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:51
                                                                    • ActiveRecord::Result#block in each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:51
                                                                      • Book.block (2 levels) in find_by_sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:50
                                                                        • Book.instantiate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:66
                                                                          • Book.discriminate_class_for_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:167
                                                                            • Book.using_single_table_inheritance? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:175
                                                                              • Book.inheritance_column $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:186
                                                                                • Class#superclass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:187
                                                                                • ActiveRecord::Base.inheritance_column $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:186
                                                                              • NilClass#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                                                • NilClass#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:54
                                                                            • Book.discriminate_class_for_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:78
                                                                          • Book.attributes_builder $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:233
                                                                          • ActiveRecord::AttributeSet::Builder#build_from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:13
                                                                            • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:14
                                                                            • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:18
                                                                              • ActiveRecord::LazyAttributeHash#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:27
                                                                            • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:19
                                                                              • ActiveRecord::AttributeSet#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:5
                                                                          • Book.allocate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:112
                                                                            • Book.define_attribute_methods $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:79
                                                                            • Class#allocate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:114
                                                                          • Book#init_with $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:301
                                                                            • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:302
                                                                            • ActiveRecord::LegacyYamlAdapter.convert $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/legacy_yaml_adapter.rb:3
                                                                              • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/legacy_yaml_adapter.rb:4
                                                                            • Book#init_internals $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:547
                                                                            • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:309
                                                                            • Book.define_attribute_methods $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:79
                                                                            • Book#_run_find_callbacks $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:777
                                                                              • Book#_find_callbacks -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                • Book#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                  • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                                                                  • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                  • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                    • Book._find_callbacks -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                      • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                              • Book#__run_callbacks__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:86
                                                                                • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:529
                                                                                • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:88
                                                                            • Book#_run_initialize_callbacks $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:777
                                                                              • Book#_initialize_callbacks -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                • Book#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                  • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                                                                  • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                  • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                    • Book._initialize_callbacks -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                      • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                              • Book#__run_callbacks__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:86
                                                                                • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:529
                                                                                • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:88
                                                                    • ActiveRecord::Result#block in each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:51
                                                                      • Book.block (2 levels) in find_by_sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:50
                                                                        • Book.instantiate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:66
                                                                          • Book.discriminate_class_for_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:167
                                                                            • Book.using_single_table_inheritance? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:175
                                                                              • Book.inheritance_column $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:186
                                                                                • Class#superclass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:187
                                                                                • ActiveRecord::Base.inheritance_column $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:186
                                                                              • NilClass#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                                                • NilClass#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:54
                                                                            • Book.discriminate_class_for_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:78
                                                                          • Book.attributes_builder $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:233
                                                                          • ActiveRecord::AttributeSet::Builder#build_from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:13
                                                                            • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:14
                                                                            • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:18
                                                                              • ActiveRecord::LazyAttributeHash#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:27
                                                                            • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:19
                                                                              • ActiveRecord::AttributeSet#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:5
                                                                          • Book.allocate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:112
                                                                            • Book.define_attribute_methods $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:79
                                                                            • Class#allocate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:114
                                                                          • Book#init_with $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:301
                                                                            • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:302
                                                                            • ActiveRecord::LegacyYamlAdapter.convert $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/legacy_yaml_adapter.rb:3
                                                                              • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/legacy_yaml_adapter.rb:4
                                                                            • Book#init_internals $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:547
                                                                            • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:309
                                                                            • Book.define_attribute_methods $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:79
                                                                            • Book#_run_find_callbacks $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:777
                                                                              • Book#_find_callbacks -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                • Book#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                  • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                                                                  • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                  • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                    • Book._find_callbacks -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                      • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                              • Book#__run_callbacks__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:86
                                                                                • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:529
                                                                                • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:88
                                                                            • Book#_run_initialize_callbacks $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:777
                                                                              • Book#_initialize_callbacks -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                • Book#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                  • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                                                                  • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                  • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                    • Book._initialize_callbacks -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                      • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                              • Book#__run_callbacks__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:86
                                                                                • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:529
                                                                                • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:88
                                                            • ActiveSupport::Notifications::Instrumenter#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:35
                                                              • ActiveSupport::Notifications::Fanout#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:45
                                                                • ActiveSupport::Notifications::Fanout#listeners_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:53
                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:46
                                                        • Book::ActiveRecord_Relation#preload_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                        • Book::ActiveRecord_Relation#eager_loading? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:584
                                                          • Book::ActiveRecord_Relation#eager_load_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                          • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:586
                                                          • Book::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                          • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:587
                                                          • Book::ActiveRecord_Relation#joined_includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:594
                                                            • Book::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                            • Book::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                            • Array#& $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:595
                                                          • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:587
                                                          • Book::ActiveRecord_Relation#references_eager_loaded_tables? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:658
                                                            • Book::ActiveRecord_Relation#arel $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:857
                                                            • Arel::SelectManager#join_sources $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:229
                                                            • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:659
                                                            • Array#flatten $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:670
                                                            • Array#compact $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:670
                                                            • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:670
                                                              • Book::ActiveRecord_Relation#block in references_eager_loaded_tables? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:670
                                                                • String#downcase $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:670
                                                            • Array#uniq $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:670
                                                            • Book::ActiveRecord_Relation#references_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                            • Array#- $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:672
                                                            • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:672
                                                        • Book::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                        • Book::ActiveRecord_Relation#build_preloader $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:654
                                                          • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:655
                                                            • BasicObject#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:655
                                                        • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:644
                                                          • Book::ActiveRecord_Relation#block in exec_queries $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:644
                                                            • ActiveRecord::Associations::Preloader#preload $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:94
                                                              • Array.wrap $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:36
                                                                • Kernel#nil? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:37
                                                                • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:39
                                                                • Array#to_ary $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:40
                                                              • Array#compact $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:95
                                                              • Array#uniq $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:95
                                                                • Book#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:398
                                                                  • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                    • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                      • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                            • ActiveRecord::LazyAttributeHash#assign_default_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:94
                                                                              • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:95
                                                                              • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:97
                                                                              • ActiveRecord::Attribute.from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:4
                                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:5
                                                                                  • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:29
                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                          • ActiveRecord::Attribute::FromDatabase#original_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:41
                                                                            • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:103
                                                                              • ActiveRecord::Type::Integer#type_cast_from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:15
                                                                                • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:16
                                                                                • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:17
                                                                  • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                    • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                      • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                  • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:400
                                                                • Book#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:398
                                                                  • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                    • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                      • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                            • ActiveRecord::LazyAttributeHash#assign_default_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:94
                                                                              • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:95
                                                                              • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:97
                                                                              • ActiveRecord::Attribute.from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:4
                                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:5
                                                                                  • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:29
                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                          • ActiveRecord::Attribute::FromDatabase#original_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:41
                                                                            • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:103
                                                                              • ActiveRecord::Type::Integer#type_cast_from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:15
                                                                                • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:16
                                                                                • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:17
                                                                  • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                    • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                      • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                  • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:400
                                                              • Array.wrap $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:36
                                                                • Kernel#nil? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:37
                                                                • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:39
                                                              • Enumerable#flat_map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:102
                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:102
                                                                  • ActiveRecord::Associations::Preloader#block in preload $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:102
                                                                    • ActiveRecord::Associations::Preloader#preloaders_on $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:110
                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:112
                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:114
                                                                      • ActiveRecord::Associations::Preloader#preloaders_for_one $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:142
                                                                        • ActiveRecord::Associations::Preloader#grouped_records $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:152
                                                                          • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:154
                                                                            • ActiveRecord::Associations::Preloader#block in grouped_records $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:154
                                                                              • Book#association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:157
                                                                                • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:160
                                                                                • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:161
                                                                                • Book._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                  • Book._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                    • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                  • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                • ActiveRecord::Reflection::BelongsToReflection#association_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:447
                                                                                  • ActiveRecord::Reflection::BelongsToReflection#macro $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:610
                                                                                  • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:470
                                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:162
                                                                                  • ActiveRecord::Associations::BelongsToAssociation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:24
                                                                                    • ActiveRecord::Reflection::BelongsToReflection#check_validity! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:354
                                                                                      • ActiveRecord::Reflection::BelongsToReflection#check_validity_of_inverse! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:181
                                                                                        • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:470
                                                                                        • ActiveRecord::Reflection::BelongsToReflection#has_inverse? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:402
                                                                                          • ActiveRecord::Reflection::BelongsToReflection#inverse_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:499
                                                                                            • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:500
                                                                                              • ActiveRecord::Reflection::BelongsToReflection#block in inverse_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:500
                                                                                    • ActiveRecord::Associations::BelongsToAssociation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/belongs_to_association.rb:25
                                                                                      • ActiveRecord::Associations::BelongsToAssociation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:42
                                                                                    • ActiveRecord::Associations::BelongsToAssociation#reset_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:101
                                                                                • Book#association_instance_set $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:176
                                                                              • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:157
                                                                              • ActiveRecord::Associations::BelongsToAssociation#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:117
                                                                                • ActiveRecord::Reflection::BelongsToReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                              • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:158
                                                                            • ActiveRecord::Associations::Preloader#block in grouped_records $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:154
                                                                              • Book#association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:157
                                                                                • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:160
                                                                                • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:161
                                                                                • Book._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                  • Book._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                    • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                  • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                • ActiveRecord::Reflection::BelongsToReflection#association_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:447
                                                                                  • ActiveRecord::Reflection::BelongsToReflection#macro $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:610
                                                                                  • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:470
                                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:162
                                                                                  • ActiveRecord::Associations::BelongsToAssociation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:24
                                                                                    • ActiveRecord::Reflection::BelongsToReflection#check_validity! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:354
                                                                                      • ActiveRecord::Reflection::BelongsToReflection#check_validity_of_inverse! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:181
                                                                                        • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:470
                                                                                        • ActiveRecord::Reflection::BelongsToReflection#has_inverse? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:402
                                                                                          • ActiveRecord::Reflection::BelongsToReflection#inverse_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:499
                                                                                            • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:500
                                                                                              • ActiveRecord::Reflection::BelongsToReflection#block in inverse_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:500
                                                                                    • ActiveRecord::Associations::BelongsToAssociation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/belongs_to_association.rb:25
                                                                                      • ActiveRecord::Associations::BelongsToAssociation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:42
                                                                                    • ActiveRecord::Associations::BelongsToAssociation#reset_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:101
                                                                                • Book#association_instance_set $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:176
                                                                              • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:157
                                                                              • ActiveRecord::Associations::BelongsToAssociation#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:117
                                                                                • ActiveRecord::Reflection::BelongsToReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                              • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:158
                                                                        • Enumerable#flat_map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:143
                                                                          • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:143
                                                                            • ActiveRecord::Associations::Preloader#block in preloaders_for_one $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:143
                                                                              • Enumerable#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:144
                                                                                • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:144
                                                                                  • ActiveRecord::Associations::Preloader#block (2 levels) in preloaders_for_one $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:144
                                                                                    • ActiveRecord::Associations::Preloader#preloader_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:184
                                                                                      • Array#first $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:187
                                                                                      • Book#association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:157
                                                                                        • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                                        • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:160
                                                                                      • ActiveRecord::Associations::BelongsToAssociation#loaded? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:58
                                                                                      • ActiveRecord::Reflection::BelongsToReflection#check_preloadable! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:358
                                                                                      • ActiveRecord::Reflection::BelongsToReflection#macro $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:610
                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:145
                                                                                      • ActiveRecord::Associations::Preloader::BelongsTo#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:8
                                                                                        • Array#first $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:13
                                                                                        • Array#first $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:13
                                                                                        • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:13
                                                                                    • ActiveRecord::Associations::Preloader::BelongsTo#run $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:19
                                                                                      • ActiveRecord::Associations::Preloader::BelongsTo#preload $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/singular_association.rb:8
                                                                                        • ActiveRecord::Associations::Preloader::BelongsTo#associated_records_by_owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:77
                                                                                          • ActiveRecord::Associations::Preloader::BelongsTo#owners_by_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:59
                                                                                            • ActiveRecord::Associations::Preloader::BelongsTo#key_conversion_required? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:102
                                                                                              • ActiveRecord::Associations::Preloader::BelongsTo#association_key_type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:106
                                                                                                • ActiveRecord::Associations::Preloader::BelongsTo#association_key_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/belongs_to.rb:6
                                                                                                  • Dude.primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/primary_key.rb:72
                                                                                                • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:107
                                                                                                • Dude.type_for_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:243
                                                                                                  • Dude.column_types $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:237
                                                                                                • ActiveRecord::Type::Integer#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:11
                                                                                              • ActiveRecord::Associations::Preloader::BelongsTo#owner_key_type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:110
                                                                                                • ActiveRecord::Associations::Preloader::BelongsTo#owner_key_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/belongs_to.rb:10
                                                                                                  • ActiveRecord::Reflection::BelongsToReflection#foreign_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:329
                                                                                                • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:111
                                                                                                • Book.type_for_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:243
                                                                                                  • Book.column_types $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:237
                                                                                                • ActiveRecord::Type::Integer#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:11
                                                                                            • Enumerable#group_by $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:65
                                                                                              • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:65
                                                                                                • ActiveRecord::Associations::Preloader::BelongsTo#block in owners_by_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:65
                                                                                                  • ActiveRecord::Associations::Preloader::BelongsTo#owner_key_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/belongs_to.rb:10
                                                                                                    • ActiveRecord::Reflection::BelongsToReflection#foreign_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:329
                                                                                                  • Book#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:354
                                                                                                    • Book#read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:84
                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:85
                                                                                                      • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                              • ActiveRecord::LazyAttributeHash#assign_default_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:94
                                                                                                                • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:95
                                                                                                                • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:97
                                                                                                                • ActiveRecord::Attribute.from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:4
                                                                                                                  • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:5
                                                                                                                    • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:29
                                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                            • ActiveRecord::Attribute::FromDatabase#original_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:41
                                                                                                              • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:103
                                                                                                                • ActiveRecord::Type::Integer#type_cast_from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:15
                                                                                                                  • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:16
                                                                                                                  • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:17
                                                                                                • ActiveRecord::Associations::Preloader::BelongsTo#block in owners_by_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:65
                                                                                                  • ActiveRecord::Associations::Preloader::BelongsTo#owner_key_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/belongs_to.rb:10
                                                                                                    • ActiveRecord::Reflection::BelongsToReflection#foreign_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:329
                                                                                                  • Book#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:354
                                                                                                    • Book#read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:84
                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:85
                                                                                                      • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                              • ActiveRecord::LazyAttributeHash#assign_default_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:94
                                                                                                                • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:95
                                                                                                                • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:97
                                                                                                                • ActiveRecord::Attribute.from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:4
                                                                                                                  • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:5
                                                                                                                    • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:29
                                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                            • ActiveRecord::Attribute::FromDatabase#original_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:41
                                                                                                              • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:103
                                                                                                                • ActiveRecord::Type::Integer#type_cast_from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:15
                                                                                                                  • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:16
                                                                                                                  • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:17
                                                                                          • Hash#keys $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:79
                                                                                          • Array#compact $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:79
                                                                                          • Enumerable#each_with_object $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:82
                                                                                            • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:82
                                                                                              • ActiveRecord::Associations::Preloader::BelongsTo#block in associated_records_by_owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:82
                                                                                                • Book#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:398
                                                                                                  • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                    • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                      • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                  • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                    • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                      • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                  • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:400
                                                                                              • ActiveRecord::Associations::Preloader::BelongsTo#block in associated_records_by_owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:82
                                                                                                • Book#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:398
                                                                                                  • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                    • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                      • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                  • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                    • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                      • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                  • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:400
                                                                                          • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:86
                                                                                          • Dude.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                                                                            • Dude.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                                                                              • Dude.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                                                                • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                  • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                    • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                    • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                • Dude.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                  • Dude.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                              • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                                                                                • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                                                                  • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                                                                    • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                  • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                                                                                  • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                                                                                    • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                                                                                      • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                        • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                          • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#in_clause_length $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_limits.rb:51
                                                                                          • Enumerable#each_slice $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:89
                                                                                          • ActiveRecord::Associations::Preloader::BelongsTo#load_slices $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:114
                                                                                            • Enumerable#flat_map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:115
                                                                                              • Enumerator#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:115
                                                                                                • Enumerable#each_slice $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:115
                                                                                                  • Array#length $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:115
                                                                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:115
                                                                                                    • ActiveRecord::Associations::Preloader::BelongsTo#block in load_slices $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:115
                                                                                                      • ActiveRecord::Associations::Preloader::BelongsTo#records_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:31
                                                                                                        • ActiveRecord::Associations::Preloader::BelongsTo#query_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:35
                                                                                                          • ActiveRecord::Associations::Preloader::BelongsTo#scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:27
                                                                                                            • ActiveRecord::Associations::Preloader::BelongsTo#build_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:131
                                                                                                              • Dude.unscoped $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:32
                                                                                                                • Kernel#block_given? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:33
                                                                                                                • Dude.relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:253
                                                                                                                  • Dude.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                                  • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                                    • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                                      • Dude.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                                        • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                                      • Dude::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                                  • Dude.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                                              • ActiveRecord::Associations::Preloader::BelongsTo#reflection_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:127
                                                                                                                • Dude.unscoped $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:32
                                                                                                                  • Kernel#block_given? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:33
                                                                                                                  • Dude.relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:253
                                                                                                                    • Dude.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                                    • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                                      • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                                        • Dude.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                                          • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                                      • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                                        • Dude::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                                    • Dude.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                                              • Dude::ActiveRecord_Relation#values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:625
                                                                                                                • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:626
                                                                                                              • ActiveRecord::Associations::Preloader::BelongsTo#reflection_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:127
                                                                                                              • Dude::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • #<Class:0x00005559308816a0>#values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:136
                                                                                                              • #<Class:0x00005559308816a0>#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:137
                                                                                                              • Kernel#Array $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:139
                                                                                                                • NilClass#to_a $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:139
                                                                                                              • Kernel#Array $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:139
                                                                                                                • NilClass#to_a $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:139
                                                                                                              • Dude::ActiveRecord_Relation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                • Dude::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                              • Kernel#Array $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:140
                                                                                                                • NilClass#to_a $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:140
                                                                                                              • Kernel#Array $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:140
                                                                                                                • NilClass#to_a $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:140
                                                                                                              • Dude::ActiveRecord_Relation#references_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                • Dude::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                              • Dude::ActiveRecord_Relation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                • Dude::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                              • ActiveRecord::Associations::Preloader::BelongsTo#table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:39
                                                                                                                • Dude.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                              • Arel.star $GemPath0/gems/arel-6.0.4/lib/arel.rb:30
                                                                                                                • Arel.sql $GemPath0/gems/arel-6.0.4/lib/arel.rb:26
                                                                                                                  • Class#new $GemPath0/gems/arel-6.0.4/lib/arel.rb:27
                                                                                                                    • String#initialize $GemPath0/gems/arel-6.0.4/lib/arel.rb:27
                                                                                                              • Arel::Table#[] $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:99
                                                                                                                • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                                  • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                              • Dude::ActiveRecord_Relation#_select! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:258
                                                                                                                • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:259
                                                                                                                • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:260
                                                                                                                  • Dude::ActiveRecord_Relation#block in _select! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:260
                                                                                                                    • Dude.attribute_alias? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:218
                                                                                                                      • Dude.attribute_aliases -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                        • Dude.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                      • Struct#inspect $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                        • Kernel#inspect $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                          • String#inspect $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                          • Dude.inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:212
                                                                                                                            • Dude.abstract_class? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:130
                                                                                                                            • Dude.connected? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:117
                                                                                                                              • Dude.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                                                                                                • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                                  • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                    • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                    • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                • Dude.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                  • Dude.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                              • ActiveRecord::ConnectionAdapters::ConnectionHandler#connected? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:578
                                                                                                                                • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                                                                                                  • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                                                                                                    • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                                                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                  • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                • ActiveRecord::ConnectionAdapters::ConnectionPool#connected? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:298
                                                                                                                                  • ActiveRecord::ConnectionAdapters::ConnectionPool#mon_synchronize /usr/local/lib/ruby/2.5.0/monitor.rb:223
                                                                                                                                    • ActiveRecord::ConnectionAdapters::ConnectionPool#mon_enter /usr/local/lib/ruby/2.5.0/monitor.rb:183
                                                                                                                                      • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:184
                                                                                                                                      • Thread::Mutex#lock /usr/local/lib/ruby/2.5.0/monitor.rb:185
                                                                                                                                      • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:186
                                                                                                                                    • ActiveRecord::ConnectionAdapters::ConnectionPool#block in connected? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:299
                                                                                                                                      • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:299
                                                                                                                                    • ActiveRecord::ConnectionAdapters::ConnectionPool#mon_exit /usr/local/lib/ruby/2.5.0/monitor.rb:195
                                                                                                                                      • ActiveRecord::ConnectionAdapters::ConnectionPool#mon_check_owner /usr/local/lib/ruby/2.5.0/monitor.rb:259
                                                                                                                                        • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:260
                                                                                                                                      • Thread::Mutex#unlock /usr/local/lib/ruby/2.5.0/monitor.rb:200
                                                                                                                            • Dude.table_exists? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:229
                                                                                                                              • Dude.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                                                                                                                • Dude.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                                                                                                                  • Dude.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                                                                                                    • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                                      • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                        • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                        • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                    • Dude.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                      • Dude.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                  • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                                                                                                                    • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                                                                                                      • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                                                                                                        • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                      • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                                                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                    • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                                                                                                                      • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                                                                                                                        • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                                                                                                                          • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                                            • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                              • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                              • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                              • Dude.table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:125
                                                                                                                              • ActiveRecord::ConnectionAdapters::SchemaCache#table_exists? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:21
                                                                                                                                • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:23
                                                                                                                            • Dude.columns $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/cache.rb:35
                                                                                                                            • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                              • Dude.block in inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                • ActiveRecord::ConnectionAdapters::Column#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/column.rb:18
                                                                                                                                  • ActiveRecord::Type::Integer#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:11
                                                                                                                                • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                              • Dude.block in inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                • ActiveRecord::ConnectionAdapters::Column#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/column.rb:18
                                                                                                                                  • ActiveRecord::Type::String#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:4
                                                                                                                                • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                              • Dude.block in inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                • ActiveRecord::ConnectionAdapters::Column#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/column.rb:18
                                                                                                                                  • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#type -> block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                                                                    • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                                                                      • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /usr/local/lib/ruby/2.5.0/delegate.rb:392
                                                                                                                                      • ActiveRecord::Type::DateTime#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/date_time.rb:6
                                                                                                                                • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                              • Dude.block in inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                • ActiveRecord::ConnectionAdapters::Column#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/column.rb:18
                                                                                                                                  • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#type -> block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                                                                    • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                                                                      • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /usr/local/lib/ruby/2.5.0/delegate.rb:392
                                                                                                                                      • ActiveRecord::Type::DateTime#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/date_time.rb:6
                                                                                                                                • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                            • Array#* $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                            • Module#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:221
                                                                                                                          • NilClass#inspect $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                          • Array#inspect $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                          • NilClass#inspect $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                          • NilClass#inspect $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                        • String#inspect $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                      • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                • Dude::ActiveRecord_Relation#select_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                • Dude::ActiveRecord_Relation#select_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                  • Dude::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                              • Dude::ActiveRecord_Relation#includes! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:149
                                                                                                                • Array#reject! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:150
                                                                                                                  • NilClass#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:54
                                                                                                                • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:151
                                                                                                                • Dude::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                • Array#| $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:153
                                                                                                                • Dude::ActiveRecord_Relation#includes_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                  • Dude::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                              • Dude::ActiveRecord_Relation#joins! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:433
                                                                                                                • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:434
                                                                                                                • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:435
                                                                                                                • Dude::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                • Dude::ActiveRecord_Relation#joins_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                  • Dude::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                              • Dude::ActiveRecord_Relation#order! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:322
                                                                                                                • Dude::ActiveRecord_Relation#preprocess_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1119
                                                                                                                  • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1120
                                                                                                                  • Dude::ActiveRecord_Relation#validate_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1109
                                                                                                                    • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1110
                                                                                                                      • Dude::ActiveRecord_Relation#block in validate_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1110
                                                                                                                        • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1111
                                                                                                                  • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                    • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                  • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                  • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                  • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1125
                                                                                                                  • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1128
                                                                                                                    • Dude::ActiveRecord_Relation#block in preprocess_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1128
                                                                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1130
                                                                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1133
                                                                                                                  • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1141
                                                                                                                • Dude::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                • Dude::ActiveRecord_Relation#order_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                  • Dude::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                              • ActiveRecord::Associations::Preloader::BelongsTo#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:71
                                                                                                              • Kernel#Array $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:160
                                                                                                                • NilClass#to_a $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:160
                                                                                                              • Kernel#Array $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:160
                                                                                                                • NilClass#to_a $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:160
                                                                                                              • Dude::ActiveRecord_Relation#unscope_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                • Dude::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                              • Dude.default_scoped $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/named.rb:32
                                                                                                                • Dude.relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:253
                                                                                                                  • Dude.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                                  • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                                    • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                                      • Dude.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                                        • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                                      • Dude::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                                  • Dude.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                                                • Dude.relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:253
                                                                                                                  • Dude.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                                  • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                                    • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                                      • Dude.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                                        • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                                      • Dude::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                                  • Dude.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                                                • Dude.build_default_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:97
                                                                                                                  • Dude.abstract_class? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:130
                                                                                                                  • Kernel#method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:99
                                                                                                                  • Method#owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:99
                                                                                                                  • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:99
                                                                                                                  • Dude.default_scopes -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                    • Dude.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                  • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:102
                                                                                                                • Dude::ActiveRecord_Relation#merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:30
                                                                                                                  • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:31
                                                                                                              • Dude::ActiveRecord_Relation#merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:30
                                                                                                                • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:31
                                                                                                                • Dude::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                                  • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                    • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                      • Dude::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                                        • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                                        • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                        • Dude::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                                • Dude::ActiveRecord_Relation#merge! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:40
                                                                                                                  • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:41
                                                                                                                  • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:43
                                                                                                                  • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:44
                                                                                                                    • ActiveRecord::Relation::Merger#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:46
                                                                                                                      • Dude::ActiveRecord_Relation#values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:625
                                                                                                                        • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:626
                                                                                                                  • ActiveRecord::Relation::Merger#merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:61
                                                                                                                    • ActiveRecord::Relation::Merger#normal_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:57
                                                                                                                    • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                        • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                      • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                        • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                      • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                        • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                      • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                        • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                      • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                        • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                      • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                        • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                      • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                        • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                        • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                        • Dude::ActiveRecord_Relation#_select! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:258
                                                                                                                          • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:259
                                                                                                                          • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:260
                                                                                                                            • Dude::ActiveRecord_Relation#block in _select! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:260
                                                                                                                              • Dude.attribute_alias? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:218
                                                                                                                                • Dude.attribute_aliases -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                  • Dude.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                • Struct#inspect $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                  • Kernel#inspect $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                    • String#inspect $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                    • Dude.inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:212
                                                                                                                                      • Dude.abstract_class? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:130
                                                                                                                                      • Dude.connected? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:117
                                                                                                                                        • Dude.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                                                                                                          • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                                            • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                              • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                              • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                          • Dude.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                            • Dude.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                        • ActiveRecord::ConnectionAdapters::ConnectionHandler#connected? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:578
                                                                                                                                          • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                                                                                                            • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                                                                                                              • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                                                                                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                            • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                                                                                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                          • ActiveRecord::ConnectionAdapters::ConnectionPool#connected? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:298
                                                                                                                                            • ActiveRecord::ConnectionAdapters::ConnectionPool#mon_synchronize /usr/local/lib/ruby/2.5.0/monitor.rb:223
                                                                                                                                              • ActiveRecord::ConnectionAdapters::ConnectionPool#mon_enter /usr/local/lib/ruby/2.5.0/monitor.rb:183
                                                                                                                                                • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:184
                                                                                                                                                • Thread::Mutex#lock /usr/local/lib/ruby/2.5.0/monitor.rb:185
                                                                                                                                                • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:186
                                                                                                                                              • ActiveRecord::ConnectionAdapters::ConnectionPool#block in connected? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:299
                                                                                                                                                • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:299
                                                                                                                                              • ActiveRecord::ConnectionAdapters::ConnectionPool#mon_exit /usr/local/lib/ruby/2.5.0/monitor.rb:195
                                                                                                                                                • ActiveRecord::ConnectionAdapters::ConnectionPool#mon_check_owner /usr/local/lib/ruby/2.5.0/monitor.rb:259
                                                                                                                                                  • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:260
                                                                                                                                                • Thread::Mutex#unlock /usr/local/lib/ruby/2.5.0/monitor.rb:200
                                                                                                                                      • Dude.table_exists? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:229
                                                                                                                                        • Dude.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                                                                                                                          • Dude.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                                                                                                                            • Dude.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                                                                                                              • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                                                • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                                  • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                  • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                              • Dude.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                • Dude.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                            • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                                                                                                                              • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                                                                                                                • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                                                                                                                  • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                                                                                                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                              • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                                                                                                                                • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                                                                                                                                  • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                                                                                                                                    • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                                                      • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                                        • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                        • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                        • Dude.table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:125
                                                                                                                                        • ActiveRecord::ConnectionAdapters::SchemaCache#table_exists? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:21
                                                                                                                                          • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:23
                                                                                                                                      • Dude.columns $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/cache.rb:35
                                                                                                                                      • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                        • Dude.block in inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                          • ActiveRecord::ConnectionAdapters::Column#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/column.rb:18
                                                                                                                                            • ActiveRecord::Type::Integer#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:11
                                                                                                                                          • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                        • Dude.block in inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                          • ActiveRecord::ConnectionAdapters::Column#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/column.rb:18
                                                                                                                                            • ActiveRecord::Type::String#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:4
                                                                                                                                          • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                        • Dude.block in inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                          • ActiveRecord::ConnectionAdapters::Column#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/column.rb:18
                                                                                                                                            • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#type -> block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                                                                              • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                                                                                • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /usr/local/lib/ruby/2.5.0/delegate.rb:392
                                                                                                                                                • ActiveRecord::Type::DateTime#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/date_time.rb:6
                                                                                                                                          • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                        • Dude.block in inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                          • ActiveRecord::ConnectionAdapters::Column#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/column.rb:18
                                                                                                                                            • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#type -> block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                                                                              • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                                                                                • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /usr/local/lib/ruby/2.5.0/delegate.rb:392
                                                                                                                                                • ActiveRecord::Type::DateTime#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/date_time.rb:6
                                                                                                                                          • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                      • Array#* $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                      • Module#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:221
                                                                                                                                    • NilClass#inspect $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                    • Array#inspect $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                    • NilClass#inspect $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                    • NilClass#inspect $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                  • String#inspect $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                          • Dude::ActiveRecord_Relation#select_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                          • Dude::ActiveRecord_Relation#select_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                            • Dude::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                      • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                        • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                      • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                        • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                      • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                        • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                        • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                      • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                        • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                      • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                        • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                        • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#merge_multi_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:132
                                                                                                                      • Dude::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                      • Dude::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                      • Dude::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                      • Dude::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                      • ActiveRecord::Relation::Merger#partition_overwrites $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:177
                                                                                                                      • ActiveRecord::Relation::Merger#filter_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:167
                                                                                                                      • Dude::ActiveRecord_Relation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                        • Dude::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                      • Dude::ActiveRecord_Relation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                        • Dude::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                      • Dude::ActiveRecord_Relation#reordering_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                      • Dude::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                      • Dude::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                      • Dude::ActiveRecord_Relation#order! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:322
                                                                                                                        • Dude::ActiveRecord_Relation#preprocess_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1119
                                                                                                                          • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1120
                                                                                                                          • Dude::ActiveRecord_Relation#validate_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1109
                                                                                                                            • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1110
                                                                                                                              • Dude::ActiveRecord_Relation#block in validate_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1110
                                                                                                                                • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1111
                                                                                                                          • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                            • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                              • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                          • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                          • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                          • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1125
                                                                                                                          • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1128
                                                                                                                            • Dude::ActiveRecord_Relation#block in preprocess_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1128
                                                                                                                              • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1130
                                                                                                                              • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1133
                                                                                                                          • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1141
                                                                                                                        • Dude::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                        • Dude::ActiveRecord_Relation#order_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                          • Dude::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                      • Dude::ActiveRecord_Relation#extending_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                      • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:155
                                                                                                                    • ActiveRecord::Relation::Merger#merge_single_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:158
                                                                                                                      • Dude::ActiveRecord_Relation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                      • Dude::ActiveRecord_Relation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                      • Dude::ActiveRecord_Relation#from_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                                        • Dude::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                      • Dude::ActiveRecord_Relation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                      • Dude::ActiveRecord_Relation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                      • Dude::ActiveRecord_Relation#lock_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                                        • Dude::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                      • Dude::ActiveRecord_Relation#create_with_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:105
                                                                                                                      • Hash#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:162
                                                                                                                    • ActiveRecord::Relation::Merger#merge_preloads $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:87
                                                                                                                      • Dude::ActiveRecord_Relation#preload_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                      • Dude::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActiveRecord::Relation::Merger#merge_joins $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:108
                                                                                                                      • Dude::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                      • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:109
                                                                                                          • ActiveRecord::Associations::Preloader::BelongsTo#association_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:50
                                                                                                            • ActiveRecord::Associations::Preloader::BelongsTo#table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:39
                                                                                                              • Dude.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                            • ActiveRecord::Associations::Preloader::BelongsTo#association_key_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/belongs_to.rb:6
                                                                                                              • Dude.primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/primary_key.rb:72
                                                                                                            • Arel::Table#[] $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:99
                                                                                                              • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                                • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                          • Arel::Attributes::Attribute#in $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:47
                                                                                                            • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:49
                                                                                                            • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:51
                                                                                                            • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:58
                                                                                                            • Arel::Attributes::Attribute#quoted_array $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:211
                                                                                                              • Array#map $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:212
                                                                                                                • Arel::Attributes::Attribute#block in quoted_array $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:212
                                                                                                                  • Arel::Attributes::Attribute#quoted_node $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:207
                                                                                                                    • Arel::Nodes.build_quoted $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:81
                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:87
                                                                                                                      • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:88
                                                                                                                        • Arel::Nodes::Casted#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:62
                                                                                                                          • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:65
                                                                                                                • Arel::Attributes::Attribute#block in quoted_array $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:212
                                                                                                                  • Arel::Attributes::Attribute#quoted_node $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:207
                                                                                                                    • Arel::Nodes.build_quoted $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:81
                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:87
                                                                                                                      • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:88
                                                                                                                        • Arel::Nodes::Casted#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:62
                                                                                                                          • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:65
                                                                                                            • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:59
                                                                                                              • Arel::Nodes::In#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                          • Dude::ActiveRecord_Relation#where $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:568
                                                                                                            • Arel::Nodes::In#eql? $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:22
                                                                                                              • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                                                              • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                                                            • Arel::Nodes::In#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:16
                                                                                                              • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:17
                                                                                                            • Dude::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                              • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                  • Dude::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                                    • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                                    • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                    • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                      • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                        • Array#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                    • Dude::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                            • Dude::ActiveRecord_Relation#where! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:578
                                                                                                              • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:579
                                                                                                              • Dude::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • Dude::ActiveRecord_Relation#build_where $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:947
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:949
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:949
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:951
                                                                                                              • Dude::ActiveRecord_Relation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                • Dude::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                    • Dude::ActiveRecord_Relation#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:116
                                                                                                      • Kernel#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:117
                                                                                                    • Dude::ActiveRecord_Relation#to_ary $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:46
                                                                                                      • Dude::ActiveRecord_Relation#to_a $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:242
                                                                                                        • Dude::ActiveRecord_Relation#load $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:514
                                                                                                          • Dude::ActiveRecord_Relation#exec_queries $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:638
                                                                                                            • Dude::ActiveRecord_Relation#eager_loading? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:584
                                                                                                              • Dude::ActiveRecord_Relation#eager_load_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:586
                                                                                                              • Dude::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:587
                                                                                                            • Dude::ActiveRecord_Relation#arel $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:857
                                                                                                              • Dude::ActiveRecord_Relation#build_arel $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:863
                                                                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:864
                                                                                                                  • Arel::SelectManager#initialize $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:9
                                                                                                                    • Arel::SelectManager#initialize $GemPath0/gems/arel-6.0.4/lib/arel/tree_manager.rb:11
                                                                                                                    • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:11
                                                                                                                      • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_statement.rb:7
                                                                                                                        • Arel::Nodes::SelectCore#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_core.rb:7
                                                                                                                          • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_core.rb:8
                                                                                                                          • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_core.rb:9
                                                                                                                            • Arel::Nodes::JoinSource#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/join_source.rb:9
                                                                                                                              • Arel::Nodes::JoinSource#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                                • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                                      • Arel::Nodes::SelectStatement#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_statement.rb:7
                                                                                                                        • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_statement.rb:8
                                                                                                                    • Array#last $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:12
                                                                                                                    • Arel::SelectManager#from $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:87
                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:88
                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:91
                                                                                                                • Dude::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                • Dude::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                • Array#- $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:868
                                                                                                                  • Arel::Nodes::In#eql? $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:22
                                                                                                                    • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                                                                    • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                                                                • Dude::ActiveRecord_Relation#collapse_wheres $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:937
                                                                                                                  • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:938
                                                                                                                    • Dude::ActiveRecord_Relation#block in collapse_wheres $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:938
                                                                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:939
                                                                                                                  • Array#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                                                                                    • Array#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:24
                                                                                                                  • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:944
                                                                                                                    • Arel::Nodes::And#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/and.rb:6
                                                                                                                      • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/and.rb:7
                                                                                                                  • Arel::SelectManager#where $GemPath0/gems/arel-6.0.4/lib/arel/tree_manager.rb:38
                                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/tree_manager.rb:39
                                                                                                                • Dude::ActiveRecord_Relation#having_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                • Dude::ActiveRecord_Relation#limit_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                • Dude::ActiveRecord_Relation#offset_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                • Dude::ActiveRecord_Relation#group_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                • Dude::ActiveRecord_Relation#build_order $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1099
                                                                                                                  • Dude::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                  • Array#uniq $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1100
                                                                                                                  • Array#reject! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1101
                                                                                                                    • NilClass#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:54
                                                                                                                • Dude::ActiveRecord_Relation#build_select $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1057
                                                                                                                  • Dude::ActiveRecord_Relation#select_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                  • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1058
                                                                                                                  • Dude::ActiveRecord_Relation#select_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                  • Array#uniq $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1059
                                                                                                                  • Dude::ActiveRecord_Relation#arel_columns $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1065
                                                                                                                    • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1066
                                                                                                                      • Dude::ActiveRecord_Relation#block in arel_columns $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1066
                                                                                                                        • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1067
                                                                                                                        • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1067
                                                                                                                        • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1069
                                                                                                                  • Arel::SelectManager#project $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:132
                                                                                                                    • Array#map $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:135
                                                                                                                      • Arel::SelectManager#block in project $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:135
                                                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                                                                        • Array#include? $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                                                                    • Array#concat $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:135
                                                                                                                • Dude::ActiveRecord_Relation#distinct_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                • Arel::SelectManager#distinct $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:149
                                                                                                                • Dude::ActiveRecord_Relation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                • Dude::ActiveRecord_Relation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                            • Dude::ActiveRecord_Relation#arel $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:857
                                                                                                            • Dude::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                            • Dude.find_by_sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:38
                                                                                                              • Dude.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                                                                                                • Dude.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                                                                                                  • Dude.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                                                                                    • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                      • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                        • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                        • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                    • Dude.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                      • Dude.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                  • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                                                                                                    • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                                                                                      • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                                                                                        • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                      • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                    • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                                                                                                      • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                                                                                                        • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                                                                                                          • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                            • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                              • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                              • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                              • Dude.table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:125
                                                                                                              • Dude.sanitize_sql_for_conditions $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/sanitization.rb:22
                                                                                                                • Arel::SelectManager#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:16
                                                                                                                  • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:17
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/sanitization.rb:26
                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/sanitization.rb:27
                                                                                                              • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:39
                                                                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#select_all $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/query_cache.rb:64
                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#select_all $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:30
                                                                                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#binds_from_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:385
                                                                                                                    • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:386
                                                                                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#to_sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:10
                                                                                                                    • Kernel#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:11
                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#collector $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:138
                                                                                                                      • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:140
                                                                                                                        • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#initialize $GemPath0/gems/arel-6.0.4/lib/arel/collectors/sql_string.rb:8
                                                                                                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#initialize $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:4
                                                                                                                    • Arel::Visitors::SQLite#accept $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:6
                                                                                                                      • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                        • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                        • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                        • Arel::Visitors::SQLite#visit_Arel_Nodes_SelectStatement $GemPath0/gems/arel-6.0.4/lib/arel/visitors/sqlite.rb:11
                                                                                                                          • Arel::Visitors::SQLite#visit_Arel_Nodes_SelectStatement $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:203
                                                                                                                            • Enumerable#inject $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:209
                                                                                                                              • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:209
                                                                                                                                • Arel::Visitors::SQLite#block in visit_Arel_Nodes_SelectStatement $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:209
                                                                                                                                  • Arel::Visitors::SQLite#visit_Arel_Nodes_SelectCore $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:230
                                                                                                                                    • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                    • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:785
                                                                                                                                    • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:785
                                                                                                                                    • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                    • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:240
                                                                                                                                      • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:240
                                                                                                                                        • Arel::Visitors::SQLite#block in visit_Arel_Nodes_SelectCore $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:240
                                                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Attributes_Attribute $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:709
                                                                                                                                              • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                                                              • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                                                              • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:775
                                                                                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:776
                                                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:50
                                                                                                                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                    • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                    • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                              • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:711
                                                                                                                                              • Arel::Visitors::SQLite#quote_column_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:780
                                                                                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:781
                                                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                    • Arel::Nodes::JoinSource#empty? $GemPath0/gems/arel-6.0.4/lib/arel/nodes/join_source.rb:13
                                                                                                                                    • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                    • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                      • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                      • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                      • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                      • Arel::Visitors::SQLite#visit_Arel_Nodes_JoinSource $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:555
                                                                                                                                        • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                          • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                          • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                          • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                          • Arel::Visitors::SQLite#visit_Arel_Table $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:620
                                                                                                                                            • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:775
                                                                                                                                              • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:776
                                                                                                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:50
                                                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                  • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                  • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                            • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                        • Array#any? $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:559
                                                                                                                                    • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                    • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:254
                                                                                                                                      • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:254
                                                                                                                                        • Arel::Visitors::SQLite#block in visit_Arel_Nodes_SelectCore $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:254
                                                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Nodes_And $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:649
                                                                                                                                              • Arel::Visitors::SQLite#inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:791
                                                                                                                                                • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                                • Enumerable#inject $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                                  • Enumerator#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                                    • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                                      • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                                        • Arel::Visitors::SQLite#block in inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Nodes_In $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:628
                                                                                                                                                              • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:629
                                                                                                                                                              • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                • Arel::Visitors::SQLite#visit_Arel_Attributes_Attribute $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:709
                                                                                                                                                                  • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                                                                                  • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                                                                                  • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:775
                                                                                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:776
                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:50
                                                                                                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                        • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                  • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:711
                                                                                                                                                                  • Arel::Visitors::SQLite#quote_column_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:780
                                                                                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:781
                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                      • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                              • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                • Arel::Visitors::SQLite#visit_Array $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:765
                                                                                                                                                                  • Arel::Visitors::SQLite#inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:791
                                                                                                                                                                    • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                                                    • Enumerable#inject $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                                                      • Enumerator#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                                                        • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                                                          • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                                                            • Arel::Visitors::SQLite#block in inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                                                              • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Arel::Visitors::SQLite#visit_Arel_Nodes_Casted $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:150
                                                                                                                                                                                  • Arel::Visitors::SQLite#quoted $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:731
                                                                                                                                                                                    • Arel::Visitors::SQLite#column_for $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:170
                                                                                                                                                                                      • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:172
                                                                                                                                                                                      • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:172
                                                                                                                                                                                      • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:173
                                                                                                                                                                                      • Arel::Visitors::SQLite#table_exists? $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:166
                                                                                                                                                                                        • Arel::Visitors::SQLite#schema_cache $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:72
                                                                                                                                                                                        • ActiveRecord::ConnectionAdapters::SchemaCache#table_exists? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:21
                                                                                                                                                                                          • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:23
                                                                                                                                                                                      • Arel::Visitors::SQLite#column_cache $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:180
                                                                                                                                                                                        • Arel::Visitors::SQLite#schema_cache $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:72
                                                                                                                                                                                        • ActiveRecord::ConnectionAdapters::SchemaCache#columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:48
                                                                                                                                                                                    • Arel::Visitors::SQLite#quote $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:770
                                                                                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:771
                                                                                                                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:9
                                                                                                                                                                                        • Kernel#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:11
                                                                                                                                                                                        • ActiveRecord::Type::Integer#type_cast_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:20
                                                                                                                                                                                          • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:8
                                                                                                                                                                                            • TrueClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:10
                                                                                                                                                                                            • FalseClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:11
                                                                                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:12
                                                                                                                                                                                            • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:97
                                                                                                                                                                                              • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:98
                                                                                                                                                                                              • ActiveRecord::Type::Integer#cast_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:34
                                                                                                                                                                                                • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:39
                                                                                                                                                                                          • ActiveRecord::Type::Integer#ensure_in_range $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:43
                                                                                                                                                                                            • Range#cover? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                                                                                                                                              • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                                                                                                                                              • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                                                                                                                                        • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_quote $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:207
                                                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:209
                                                                                                                                                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_quote $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:100
                                                                                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:102
                                                                                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:102
                                                                                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:102
                                                                                                                                                                                            • TrueClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:104
                                                                                                                                                                                            • FalseClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:105
                                                                                                                                                                                            • NilClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:106
                                                                                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:108
                                                                                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:109
                                                                                                                                                                                            • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                                              • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                                                • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                                                                                                                • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                                                                                                                  • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:151
                                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                            • Arel::Visitors::SQLite#block in inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                                                              • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Arel::Visitors::SQLite#visit_Arel_Nodes_Casted $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:150
                                                                                                                                                                                  • Arel::Visitors::SQLite#quoted $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:731
                                                                                                                                                                                    • Arel::Visitors::SQLite#column_for $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:170
                                                                                                                                                                                      • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:172
                                                                                                                                                                                      • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:172
                                                                                                                                                                                      • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:173
                                                                                                                                                                                      • Arel::Visitors::SQLite#table_exists? $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:166
                                                                                                                                                                                        • Arel::Visitors::SQLite#schema_cache $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:72
                                                                                                                                                                                        • ActiveRecord::ConnectionAdapters::SchemaCache#table_exists? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:21
                                                                                                                                                                                          • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:23
                                                                                                                                                                                      • Arel::Visitors::SQLite#column_cache $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:180
                                                                                                                                                                                        • Arel::Visitors::SQLite#schema_cache $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:72
                                                                                                                                                                                        • ActiveRecord::ConnectionAdapters::SchemaCache#columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:48
                                                                                                                                                                                    • Arel::Visitors::SQLite#quote $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:770
                                                                                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:771
                                                                                                                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:9
                                                                                                                                                                                        • Kernel#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:11
                                                                                                                                                                                        • ActiveRecord::Type::Integer#type_cast_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:20
                                                                                                                                                                                          • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:8
                                                                                                                                                                                            • TrueClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:10
                                                                                                                                                                                            • FalseClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:11
                                                                                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:12
                                                                                                                                                                                            • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:97
                                                                                                                                                                                              • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:98
                                                                                                                                                                                              • ActiveRecord::Type::Integer#cast_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:34
                                                                                                                                                                                                • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:39
                                                                                                                                                                                          • ActiveRecord::Type::Integer#ensure_in_range $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:43
                                                                                                                                                                                            • Range#cover? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                                                                                                                                              • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                                                                                                                                              • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                                                                                                                                        • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_quote $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:207
                                                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:209
                                                                                                                                                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_quote $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:100
                                                                                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:102
                                                                                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:102
                                                                                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:102
                                                                                                                                                                                            • TrueClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:104
                                                                                                                                                                                            • FalseClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:105
                                                                                                                                                                                            • NilClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:106
                                                                                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:108
                                                                                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:109
                                                                                                                                                                                            • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                                              • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                                                • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                                                                                                                • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                                                                                                                  • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:151
                                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                    • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:785
                                                                                                                            • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:785
                                                                                                                            • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:785
                                                                                                                            • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:785
                                                                                                                    • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:13
                                                                                                                      • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:13
                                                                                                                        • Array#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:13
                                                                                                                    • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#compile $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:133
                                                                                                                      • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#compile $GemPath0/gems/arel-6.0.4/lib/arel/collectors/sql_string.rb:19
                                                                                                                        • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#value $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:8
                                                                                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#select $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:355
                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#exec_query $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:276
                                                                                                                      • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:277
                                                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#log $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:477
                                                                                                                        • Kernel#object_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:482
                                                                                                                        • ActiveSupport::Notifications::Instrumenter#instrument $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:17
                                                                                                                          • ActiveSupport::Notifications::Instrumenter#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:30
                                                                                                                            • ActiveSupport::Notifications::Fanout#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:41
                                                                                                                              • ActiveSupport::Notifications::Fanout#listeners_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:53
                                                                                                                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                              • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:42
                                                                                                                                • ActiveSupport::Notifications::Fanout#block in start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:42
                                                                                                                                  • ActiveSupport::Notifications::Fanout::Subscribers::Evented#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:97
                                                                                                                                    • ActiveRecord::LogSubscriber#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:78
                                                                                                                                      • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                                                                                                        • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                                                                      • ActiveRecord::LogSubscriber#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:85
                                                                                                                                        • #<Class:Time>#now $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:86
                                                                                                                                          • Time#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:86
                                                                                                                                        • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:86
                                                                                                                                          • ActiveSupport::Notifications::Event#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:50
                                                                                                                                            • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:52
                                                                                                                                              • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:52
                                                                                                                                                • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:52
                                                                                                                                        • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:105
                                                                                                                                          • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                            • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                            • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                          • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:121
                                                                                                                                        • Array#last $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:87
                                                                                                                                        • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:105
                                                                                                                                          • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                            • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                            • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                          • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:121
                                                                                                                                        • Array#push $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:90
                                                                                                                                • ActiveSupport::Notifications::Fanout#block in start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:42
                                                                                                                                  • ActiveSupport::Notifications::Fanout::Subscribers::Evented#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:97
                                                                                                                                    • ActiveRecord::ExplainSubscriber#start $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/explain_subscriber.rb:6
                                                                                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in log $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:484
                                                                                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in exec_query $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:281
                                                                                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#without_prepared_statement? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:494
                                                                                                                              • SQLite3::Database#prepare $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:90
                                                                                                                                • Class#new $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:91
                                                                                                                                  • SQLite3::Statement#initialize $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:91
                                                                                                                                • Kernel#block_given? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:92
                                                                                                                              • SQLite3::Statement#columns $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:101
                                                                                                                                • SQLite3::Statement#get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:135
                                                                                                                                  • SQLite3::Statement#column_count $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                                                                  • Class#new $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                                                                    • Array#initialize $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                                                                        • SQLite3::Statement#column_name $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:137
                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                                                                        • SQLite3::Statement#column_name $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:137
                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                                                                        • SQLite3::Statement#column_name $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:137
                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                                                                        • SQLite3::Statement#column_name $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:137
                                                                                                                                  • SQLite3::Statement#column_count $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                                                                  • Class#new $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                                                                    • Array#initialize $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                                                                        • SQLite3::Statement#column_decltype $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:140
                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                                                                        • SQLite3::Statement#column_decltype $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:140
                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                                                                        • SQLite3::Statement#column_decltype $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:140
                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                                                                        • SQLite3::Statement#column_decltype $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:140
                                                                                                                              • Enumerable#to_a $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:287
                                                                                                                                • SQLite3::Statement#each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:106
                                                                                                                                  • Kernel#loop $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                                                                                                    • SQLite3::Statement#block in each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                                                                                                      • SQLite3::Statement#step $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                                                                        • SQLite3::Database#encoding $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                                                                      • SQLite3::Statement#done? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:109
                                                                                                                                    • SQLite3::Statement#block in each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                                                                                                      • SQLite3::Statement#step $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                                                                        • SQLite3::Database#encoding $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                                                                      • SQLite3::Statement#done? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:109
                                                                                                                                    • SQLite3::Statement#block in each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                                                                                                      • SQLite3::Statement#step $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                                                                        • SQLite3::Database#encoding $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                                                                      • SQLite3::Statement#done? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:109
                                                                                                                              • SQLite3::Statement#close $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:289
                                                                                                                              • Array#to_a $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:302
                                                                                                                              • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:302
                                                                                                                                • ActiveRecord::Result#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:38
                                                                                                                          • ActiveSupport::Notifications::Instrumenter#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:35
                                                                                                                            • ActiveSupport::Notifications::Fanout#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:45
                                                                                                                              • ActiveSupport::Notifications::Fanout#listeners_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:53
                                                                                                                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                              • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:46
                                                                                                                                • ActiveSupport::Notifications::Fanout#block in finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:46
                                                                                                                                  • ActiveSupport::Notifications::Fanout::Subscribers::Evented#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:101
                                                                                                                                    • ActiveRecord::LogSubscriber#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:82
                                                                                                                                      • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                                                                                                        • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                                                                      • ActiveRecord::LogSubscriber#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:93
                                                                                                                                        • #<Class:Time>#now $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:94
                                                                                                                                          • Time#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:94
                                                                                                                                        • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:105
                                                                                                                                          • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                            • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                            • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                          • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:121
                                                                                                                                        • Array#pop $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:95
                                                                                                                                        • Hash#merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:97
                                                                                                                                        • String#split $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:99
                                                                                                                                        • Array#first $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:99
                                                                                                                                        • ActiveRecord::LogSubscriber#sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:37
                                                                                                                                          • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:38
                                                                                                                                          • ActiveRecord::LogSubscriber.runtime $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:9
                                                                                                                                            • ActiveRecord::RuntimeRegistry.sql_runtime $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                                              • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                                • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                          • ActiveSupport::Notifications::Event#duration $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:60
                                                                                                                                            • Time#minus_with_coercion $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:249
                                                                                                                                              • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:250
                                                                                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:251
                                                                                                                                              • Time#minus_with_duration $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:236
                                                                                                                                                • ActiveSupport::Duration.=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/duration.rb:93
                                                                                                                                                  • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/duration.rb:94
                                                                                                                                                • Time#- $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:240
                                                                                                                                                  • Integer#fdiv $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:240
                                                                                                                                          • ActiveRecord::LogSubscriber.runtime= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:5
                                                                                                                                            • ActiveRecord::RuntimeRegistry.sql_runtime= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:19
                                                                                                                                              • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                                • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                          • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                                                                                                            • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                                                                          • ActiveSupport::Logger#debug? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:93
                                                                                                                                            • ActiveSupport::Logger#level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:28
                                                                                                                                              • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:16
                                                                                                                                                • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:12
                                                                                                                                                  • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                                                                                                  • BasicObject#__id__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                                                                                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                          • Array#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:43
                                                                                                                                          • ActiveSupport::Notifications::Event#duration $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:60
                                                                                                                                          • Float#round $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:45
                                                                                                                                          • Float#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                            • Float#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                                                              • Float#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                                                                          • ActiveRecord::LogSubscriber#odd? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:65
                                                                                                                                          • ActiveRecord::LogSubscriber#color $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:102
                                                                                                                                            • ActiveRecord::LogSubscriber#colorize_logging $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:67
                                                                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:104
                                                                                                                                          • NilClass#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:62
                                                                                                                                          • ActiveRecord::LogSubscriber#debug $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:92
                                                                                                                                            • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                                                                                                              • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                                                                            • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                                                                                                              • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                                                                            • ActiveSupport::Logger#debug /usr/local/lib/ruby/2.5.0/logger.rb:492
                                                                                                                                              • ActiveSupport::Logger#add -> block (2 levels) in broadcast $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:25
                                                                                                                                                • ActiveSupport::Logger#block (2 levels) in broadcast $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:25
                                                                                                                                                  • ActiveSupport::Logger#add $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:86
                                                                                                                                                    • Kernel#nil? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:87
                                                                                                                                                    • ActiveSupport::Logger#level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:28
                                                                                                                                                      • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:16
                                                                                                                                                        • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:12
                                                                                                                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                                                                                                          • BasicObject#__id__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                    • ActiveSupport::Logger#add /usr/local/lib/ruby/2.5.0/logger.rb:455
                                                                                                                                                      • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:457
                                                                                                                                                      • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:460
                                                                                                                                                      • NilClass#nil? /usr/local/lib/ruby/2.5.0/logger.rb:463
                                                                                                                                                      • Kernel#block_given? /usr/local/lib/ruby/2.5.0/logger.rb:464
                                                                                                                                                      • ActiveSupport::Logger#format_severity /usr/local/lib/ruby/2.5.0/logger.rb:579
                                                                                                                                                      • #<Class:Time>#now /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                                                                                                        • Time#initialize /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                                                                                                      • ActiveSupport::Logger#format_message /usr/local/lib/ruby/2.5.0/logger.rb:583
                                                                                                                                                        • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:102
                                                                                                                                                          • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:103
                                                                                                                                                      • Logger::LogDevice#write /usr/local/lib/ruby/2.5.0/logger.rb:686
                                                                                                                                                        • Logger::LogDevice#mon_synchronize /usr/local/lib/ruby/2.5.0/monitor.rb:223
                                                                                                                                                          • Logger::LogDevice#mon_enter /usr/local/lib/ruby/2.5.0/monitor.rb:183
                                                                                                                                                            • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:184
                                                                                                                                                            • Thread::Mutex#lock /usr/local/lib/ruby/2.5.0/monitor.rb:185
                                                                                                                                                            • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:186
                                                                                                                                                          • Logger::LogDevice#block in write /usr/local/lib/ruby/2.5.0/logger.rb:688
                                                                                                                                                            • IO#write /usr/local/lib/ruby/2.5.0/logger.rb:697
                                                                                                                                                          • Logger::LogDevice#mon_exit /usr/local/lib/ruby/2.5.0/monitor.rb:195
                                                                                                                                                            • Logger::LogDevice#mon_check_owner /usr/local/lib/ruby/2.5.0/monitor.rb:259
                                                                                                                                                              • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:260
                                                                                                                                                            • Thread::Mutex#unlock /usr/local/lib/ruby/2.5.0/monitor.rb:200
                                                                                                                                                  • ActiveSupport::Logger#add $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:86
                                                                                                                                                    • Kernel#nil? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:87
                                                                                                                                                    • ActiveSupport::Logger#level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:28
                                                                                                                                                      • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:16
                                                                                                                                                        • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:12
                                                                                                                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                                                                                                          • BasicObject#__id__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                    • ActiveSupport::Logger#add /usr/local/lib/ruby/2.5.0/logger.rb:455
                                                                                                                                                      • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:457
                                                                                                                                                      • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:460
                                                                                                                                                      • NilClass#nil? /usr/local/lib/ruby/2.5.0/logger.rb:463
                                                                                                                                                      • Kernel#block_given? /usr/local/lib/ruby/2.5.0/logger.rb:464
                                                                                                                                                      • ActiveSupport::Logger#format_severity /usr/local/lib/ruby/2.5.0/logger.rb:579
                                                                                                                                                      • #<Class:Time>#now /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                                                                                                        • Time#initialize /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                                                                                                      • ActiveSupport::Logger#format_message /usr/local/lib/ruby/2.5.0/logger.rb:583
                                                                                                                                                        • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:20
                                                                                                                                                          • ActiveSupport::Logger::SimpleFormatter#tags_text $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:50
                                                                                                                                                            • ActiveSupport::Logger::SimpleFormatter#current_tags $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:45
                                                                                                                                                              • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:46
                                                                                                                                                              • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:46
                                                                                                                                                            • Array#any? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:52
                                                                                                                                                          • NilClass#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:21
                                                                                                                                                          • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:102
                                                                                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:103
                                                                                                                                                      • Logger::LogDevice#write /usr/local/lib/ruby/2.5.0/logger.rb:686
                                                                                                                                                        • Logger::LogDevice#mon_synchronize /usr/local/lib/ruby/2.5.0/monitor.rb:223
                                                                                                                                                          • Logger::LogDevice#mon_enter /usr/local/lib/ruby/2.5.0/monitor.rb:183
                                                                                                                                                            • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:184
                                                                                                                                                            • Thread::Mutex#lock /usr/local/lib/ruby/2.5.0/monitor.rb:185
                                                                                                                                                            • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:186
                                                                                                                                                          • Logger::LogDevice#block in write /usr/local/lib/ruby/2.5.0/logger.rb:688
                                                                                                                                                            • IO#write /usr/local/lib/ruby/2.5.0/logger.rb:697
                                                                                                                                                          • Logger::LogDevice#mon_exit /usr/local/lib/ruby/2.5.0/monitor.rb:195
                                                                                                                                                            • Logger::LogDevice#mon_check_owner /usr/local/lib/ruby/2.5.0/monitor.rb:259
                                                                                                                                                              • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:260
                                                                                                                                                            • Thread::Mutex#unlock /usr/local/lib/ruby/2.5.0/monitor.rb:200
                                                                                                                                • ActiveSupport::Notifications::Fanout#block in finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:46
                                                                                                                                  • ActiveSupport::Notifications::Fanout::Subscribers::Evented#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:101
                                                                                                                                    • ActiveRecord::ExplainSubscriber#finish $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/explain_subscriber.rb:10
                                                                                                                                      • ActiveRecord::ExplainRegistry.collect? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:50
                                                                                                                                        • ActiveRecord::ExplainRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                          • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                        • ActiveRecord::ExplainRegistry#collect? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/explain_registry.rb:21
                                                                                                              • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:40
                                                                                                                • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:40
                                                                                                                  • Hash#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:40
                                                                                                              • Dude.columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attributes.rb:97
                                                                                                              • Hash#each_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:41
                                                                                                                • Dude.block in find_by_sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:41
                                                                                                                  • Hash#delete $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:41
                                                                                                                • Dude.block in find_by_sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:41
                                                                                                                  • Hash#delete $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:41
                                                                                                                • Dude.block in find_by_sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:41
                                                                                                                  • Hash#delete $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:41
                                                                                                                • Dude.block in find_by_sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:41
                                                                                                                  • Hash#delete $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:41
                                                                                                              • ActiveSupport::Notifications.instrumenter $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications.rb:185
                                                                                                                • ActiveSupport::Notifications::InstrumentationRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                  • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                  • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                • ActiveSupport::Notifications::InstrumentationRegistry#instrumenter_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications.rb:205
                                                                                                                  • Kernel#hash $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications.rb:206
                                                                                                              • ActiveRecord::Result#length $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:45
                                                                                                              • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:46
                                                                                                              • ActiveSupport::Notifications::Instrumenter#instrument $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:17
                                                                                                                • ActiveSupport::Notifications::Instrumenter#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:30
                                                                                                                  • ActiveSupport::Notifications::Fanout#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:41
                                                                                                                    • ActiveSupport::Notifications::Fanout#listeners_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:53
                                                                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                    • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:42
                                                                                                                • Dude.block in find_by_sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:49
                                                                                                                  • Enumerable#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:50
                                                                                                                    • ActiveRecord::Result#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:49
                                                                                                                      • Kernel#block_given? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:50
                                                                                                                      • ActiveRecord::Result#hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:105
                                                                                                                        • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                            • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                              • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                • String#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                            • String#freeze $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                            • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                              • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                • String#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                            • String#freeze $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                            • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                              • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                • String#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                            • String#freeze $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                            • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                              • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                • String#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                            • String#freeze $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                        • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:111
                                                                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:111
                                                                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:111
                                                                                                                      • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:51
                                                                                                                        • ActiveRecord::Result#block in each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:51
                                                                                                                          • Dude.block (2 levels) in find_by_sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:50
                                                                                                                            • Dude.instantiate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:66
                                                                                                                              • Dude.discriminate_class_for_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:167
                                                                                                                                • Dude.using_single_table_inheritance? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:175
                                                                                                                                  • Dude.inheritance_column $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:186
                                                                                                                                    • Class#superclass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:187
                                                                                                                                    • ActiveRecord::Base.inheritance_column $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:186
                                                                                                                                  • NilClass#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                                                                                                    • NilClass#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:54
                                                                                                                                • Dude.discriminate_class_for_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:78
                                                                                                                              • Dude.attributes_builder $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:233
                                                                                                                              • ActiveRecord::AttributeSet::Builder#build_from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:13
                                                                                                                                • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:14
                                                                                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:18
                                                                                                                                  • ActiveRecord::LazyAttributeHash#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:27
                                                                                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:19
                                                                                                                                  • ActiveRecord::AttributeSet#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:5
                                                                                                                              • Dude.allocate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:112
                                                                                                                                • Dude.define_attribute_methods $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:79
                                                                                                                                • Class#allocate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:114
                                                                                                                              • Dude#init_with $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:301
                                                                                                                                • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:302
                                                                                                                                • ActiveRecord::LegacyYamlAdapter.convert $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/legacy_yaml_adapter.rb:3
                                                                                                                                  • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/legacy_yaml_adapter.rb:4
                                                                                                                                • Dude#init_internals $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:547
                                                                                                                                • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:309
                                                                                                                                • Dude.define_attribute_methods $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:79
                                                                                                                                • Dude#_run_find_callbacks $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:777
                                                                                                                                  • Dude#_find_callbacks -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                                                                    • Dude#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                                                                      • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                                                                                                                      • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                                                                      • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                                                                        • Dude._find_callbacks -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                          • Dude.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                  • Dude#__run_callbacks__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:86
                                                                                                                                    • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:529
                                                                                                                                    • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:88
                                                                                                                                • Dude#_run_initialize_callbacks $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:777
                                                                                                                                  • Dude#_initialize_callbacks -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                                                                    • Dude#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                                                                      • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                                                                                                                      • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                                                                      • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                                                                        • Dude._initialize_callbacks -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                          • Dude.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                  • Dude#__run_callbacks__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:86
                                                                                                                                    • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:529
                                                                                                                                    • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:88
                                                                                                                        • ActiveRecord::Result#block in each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:51
                                                                                                                          • Dude.block (2 levels) in find_by_sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/querying.rb:50
                                                                                                                            • Dude.instantiate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:66
                                                                                                                              • Dude.discriminate_class_for_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:167
                                                                                                                                • Dude.using_single_table_inheritance? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:175
                                                                                                                                  • Dude.inheritance_column $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:186
                                                                                                                                    • Class#superclass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:187
                                                                                                                                    • ActiveRecord::Base.inheritance_column $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:186
                                                                                                                                  • NilClass#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                                                                                                    • NilClass#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:54
                                                                                                                                • Dude.discriminate_class_for_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:78
                                                                                                                              • Dude.attributes_builder $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:233
                                                                                                                              • ActiveRecord::AttributeSet::Builder#build_from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:13
                                                                                                                                • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:14
                                                                                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:18
                                                                                                                                  • ActiveRecord::LazyAttributeHash#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:27
                                                                                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:19
                                                                                                                                  • ActiveRecord::AttributeSet#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:5
                                                                                                                              • Dude.allocate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:112
                                                                                                                                • Dude.define_attribute_methods $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:79
                                                                                                                                • Class#allocate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:114
                                                                                                                              • Dude#init_with $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:301
                                                                                                                                • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:302
                                                                                                                                • ActiveRecord::LegacyYamlAdapter.convert $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/legacy_yaml_adapter.rb:3
                                                                                                                                  • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/legacy_yaml_adapter.rb:4
                                                                                                                                • Dude#init_internals $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:547
                                                                                                                                • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:309
                                                                                                                                • Dude.define_attribute_methods $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:79
                                                                                                                                • Dude#_run_find_callbacks $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:777
                                                                                                                                  • Dude#_find_callbacks -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                                                                    • Dude#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                                                                      • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                                                                                                                      • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                                                                      • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                                                                        • Dude._find_callbacks -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                          • Dude.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                  • Dude#__run_callbacks__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:86
                                                                                                                                    • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:529
                                                                                                                                    • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:88
                                                                                                                                • Dude#_run_initialize_callbacks $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:777
                                                                                                                                  • Dude#_initialize_callbacks -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                                                                    • Dude#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                                                                      • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                                                                                                                      • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                                                                      • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                                                                        • Dude._initialize_callbacks -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                          • Dude.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                  • Dude#__run_callbacks__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:86
                                                                                                                                    • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:529
                                                                                                                                    • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:88
                                                                                                                • ActiveSupport::Notifications::Instrumenter#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:35
                                                                                                                  • ActiveSupport::Notifications::Fanout#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:45
                                                                                                                    • ActiveSupport::Notifications::Fanout#listeners_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:53
                                                                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                    • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:46
                                                                                                            • Dude::ActiveRecord_Relation#preload_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                            • Dude::ActiveRecord_Relation#eager_loading? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:584
                                                                                                              • Dude::ActiveRecord_Relation#eager_load_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:586
                                                                                                              • Dude::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:587
                                                                                                            • Dude::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                            • Dude::ActiveRecord_Relation#build_preloader $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:654
                                                                                                              • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:655
                                                                                                                • BasicObject#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:655
                                                                                                            • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:644
                                                                                                            • Dude::ActiveRecord_Relation#readonly_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                      • Array#to_ary $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:46
                                                                                            • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:119
                                                                                              • ActiveRecord::Associations::Preloader::BelongsTo#block in load_slices $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:119
                                                                                                • ActiveRecord::Associations::Preloader::BelongsTo#association_key_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/belongs_to.rb:6
                                                                                                  • Dude.primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/primary_key.rb:72
                                                                                                • Dude#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:354
                                                                                                  • Dude#read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:84
                                                                                                    • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:85
                                                                                                    • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:86
                                                                                                    • Dude.primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/primary_key.rb:72
                                                                                                    • Dude#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                      • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                            • ActiveRecord::LazyAttributeHash#assign_default_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:94
                                                                                                              • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:95
                                                                                                              • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:97
                                                                                                              • ActiveRecord::Attribute.from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:4
                                                                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:5
                                                                                                                  • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:29
                                                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                          • ActiveRecord::Attribute::FromDatabase#original_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:41
                                                                                                            • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:103
                                                                                                              • ActiveRecord::Type::Integer#type_cast_from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:15
                                                                                                                • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:16
                                                                                                                • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:17
                                                                                                • ActiveRecord::Associations::Preloader::BelongsTo#key_conversion_required? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:102
                                                                                                  • ActiveRecord::Associations::Preloader::BelongsTo#association_key_type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:106
                                                                                                    • ActiveRecord::Associations::Preloader::BelongsTo#association_key_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/belongs_to.rb:6
                                                                                                      • Dude.primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/primary_key.rb:72
                                                                                                    • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:107
                                                                                                    • Dude.type_for_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:243
                                                                                                      • Dude.column_types $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:237
                                                                                                    • ActiveRecord::Type::Integer#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:11
                                                                                                  • ActiveRecord::Associations::Preloader::BelongsTo#owner_key_type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:110
                                                                                                    • ActiveRecord::Associations::Preloader::BelongsTo#owner_key_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/belongs_to.rb:10
                                                                                                      • ActiveRecord::Reflection::BelongsToReflection#foreign_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:329
                                                                                                    • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:111
                                                                                                    • Book.type_for_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:243
                                                                                                      • Book.column_types $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:237
                                                                                                    • ActiveRecord::Type::Integer#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:11
                                                                                              • ActiveRecord::Associations::Preloader::BelongsTo#block in load_slices $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:119
                                                                                                • ActiveRecord::Associations::Preloader::BelongsTo#association_key_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/belongs_to.rb:6
                                                                                                  • Dude.primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/primary_key.rb:72
                                                                                                • Dude#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:354
                                                                                                  • Dude#read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:84
                                                                                                    • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:85
                                                                                                    • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:86
                                                                                                    • Dude.primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/primary_key.rb:72
                                                                                                    • Dude#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                      • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                            • ActiveRecord::LazyAttributeHash#assign_default_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:94
                                                                                                              • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:95
                                                                                                              • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:97
                                                                                                              • ActiveRecord::Attribute.from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:4
                                                                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:5
                                                                                                                  • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:29
                                                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                          • ActiveRecord::Attribute::FromDatabase#original_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:41
                                                                                                            • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:103
                                                                                                              • ActiveRecord::Type::Integer#type_cast_from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:15
                                                                                                                • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:16
                                                                                                                • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:17
                                                                                                • ActiveRecord::Associations::Preloader::BelongsTo#key_conversion_required? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:102
                                                                                                  • ActiveRecord::Associations::Preloader::BelongsTo#association_key_type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:106
                                                                                                    • ActiveRecord::Associations::Preloader::BelongsTo#association_key_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/belongs_to.rb:6
                                                                                                      • Dude.primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/primary_key.rb:72
                                                                                                    • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:107
                                                                                                    • Dude.type_for_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:243
                                                                                                      • Dude.column_types $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:237
                                                                                                    • ActiveRecord::Type::Integer#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:11
                                                                                                  • ActiveRecord::Associations::Preloader::BelongsTo#owner_key_type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:110
                                                                                                    • ActiveRecord::Associations::Preloader::BelongsTo#owner_key_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/belongs_to.rb:10
                                                                                                      • ActiveRecord::Reflection::BelongsToReflection#foreign_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:329
                                                                                                    • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:111
                                                                                                    • Book.type_for_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:243
                                                                                                      • Book.column_types $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:237
                                                                                                    • ActiveRecord::Type::Integer#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:11
                                                                                          • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:92
                                                                                            • ActiveRecord::Associations::Preloader::BelongsTo#block in associated_records_by_owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:92
                                                                                              • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:93
                                                                                                • ActiveRecord::Associations::Preloader::BelongsTo#block (2 levels) in associated_records_by_owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:93
                                                                                                  • Book#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:398
                                                                                                    • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                      • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                    • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                      • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                    • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:400
                                                                                            • ActiveRecord::Associations::Preloader::BelongsTo#block in associated_records_by_owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:92
                                                                                              • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:93
                                                                                                • ActiveRecord::Associations::Preloader::BelongsTo#block (2 levels) in associated_records_by_owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:93
                                                                                                  • Book#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:398
                                                                                                    • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                      • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                    • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                      • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                    • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:400
                                                                                        • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/singular_association.rb:9
                                                                                          • ActiveRecord::Associations::Preloader::BelongsTo#block in preload $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/singular_association.rb:9
                                                                                            • Array#first $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/singular_association.rb:10
                                                                                            • Book#association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:157
                                                                                              • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                                              • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:160
                                                                                            • ActiveRecord::Associations::BelongsToAssociation#target= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:80
                                                                                              • ActiveRecord::Associations::BelongsToAssociation#loaded! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:63
                                                                                                • ActiveRecord::Associations::BelongsToAssociation#stale_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/belongs_to_association.rb:109
                                                                                                  • ActiveRecord::Reflection::BelongsToReflection#foreign_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:329
                                                                                                  • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                    • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                    • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                      • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                        • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                      • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                  • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                    • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                      • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                      • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                            • ActiveRecord::Associations::BelongsToAssociation#set_inverse_instance $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:106
                                                                                              • ActiveRecord::Associations::BelongsToAssociation#invertible_for? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/belongs_to_association.rb:96
                                                                                                • ActiveRecord::Associations::BelongsToAssociation#inverse_reflection_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:226
                                                                                                  • ActiveRecord::Reflection::BelongsToReflection#inverse_of $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:175
                                                                                                    • ActiveRecord::Reflection::BelongsToReflection#inverse_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:499
                                                                                                      • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:500
                                                                                                        • ActiveRecord::Reflection::BelongsToReflection#block in inverse_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:500
                                                                                          • ActiveRecord::Associations::Preloader::BelongsTo#block in preload $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/singular_association.rb:9
                                                                                            • Array#first $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/singular_association.rb:10
                                                                                            • Book#association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:157
                                                                                              • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                                              • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:160
                                                                                            • ActiveRecord::Associations::BelongsToAssociation#target= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:80
                                                                                              • ActiveRecord::Associations::BelongsToAssociation#loaded! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:63
                                                                                                • ActiveRecord::Associations::BelongsToAssociation#stale_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/belongs_to_association.rb:109
                                                                                                  • ActiveRecord::Reflection::BelongsToReflection#foreign_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:329
                                                                                                  • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                    • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                    • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                      • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                        • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                      • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                  • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                    • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                      • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                      • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                            • ActiveRecord::Associations::BelongsToAssociation#set_inverse_instance $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:106
                                                                                              • ActiveRecord::Associations::BelongsToAssociation#invertible_for? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/belongs_to_association.rb:96
                                                                                                • ActiveRecord::Associations::BelongsToAssociation#inverse_reflection_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:226
                                                                                                  • ActiveRecord::Reflection::BelongsToReflection#inverse_of $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:175
                                                                                                    • ActiveRecord::Reflection::BelongsToReflection#inverse_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:499
                                                                                                      • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:500
                                                                                                        • ActiveRecord::Reflection::BelongsToReflection#block in inverse_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:500
                                                          • Book::ActiveRecord_Relation#block in exec_queries $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:644
                                                            • ActiveRecord::Associations::Preloader#preload $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:94
                                                              • Array.wrap $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:36
                                                                • Kernel#nil? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:37
                                                                • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:39
                                                                • Array#to_ary $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:40
                                                              • Array#compact $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:95
                                                              • Array#uniq $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:95
                                                                • Book#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:398
                                                                  • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                    • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                      • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                  • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                    • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                      • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                  • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:400
                                                                • Book#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:398
                                                                  • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                    • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                      • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                  • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                    • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                      • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                  • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:400
                                                              • Array.wrap $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:36
                                                                • Kernel#nil? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:37
                                                                • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:39
                                                              • Enumerable#flat_map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:102
                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:102
                                                                  • ActiveRecord::Associations::Preloader#block in preload $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:102
                                                                    • ActiveRecord::Associations::Preloader#preloaders_on $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:110
                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:112
                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:114
                                                                      • ActiveRecord::Associations::Preloader#preloaders_for_one $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:142
                                                                        • ActiveRecord::Associations::Preloader#grouped_records $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:152
                                                                          • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:154
                                                                            • ActiveRecord::Associations::Preloader#block in grouped_records $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:154
                                                                              • Book#association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:157
                                                                                • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:160
                                                                                • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:161
                                                                                • Book._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                  • Book._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                    • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                  • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                • ActiveRecord::Reflection::ThroughReflection#association_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                  • ActiveRecord::Reflection::HasManyReflection#association_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:447
                                                                                    • ActiveRecord::Reflection::HasManyReflection#macro $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:590
                                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:162
                                                                                  • ActiveRecord::Associations::HasManyThroughAssociation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/has_many_through_association.rb:9
                                                                                    • ActiveRecord::Associations::HasManyThroughAssociation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:24
                                                                                      • ActiveRecord::Reflection::ThroughReflection#check_validity! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:836
                                                                                        • ActiveRecord::Reflection::ThroughReflection#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:686
                                                                                          • ActiveRecord::Reflection::ThroughReflection#active_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                          • ActiveRecord::Reflection::ThroughReflection#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                          • Book._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                            • Book._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                              • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                            • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                        • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:837
                                                                                        • ActiveRecord::Reflection::ThroughReflection#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:686
                                                                                          • ActiveRecord::Reflection::ThroughReflection#active_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                          • ActiveRecord::Reflection::ThroughReflection#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                          • Book._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                            • Book._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                              • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                            • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                        • ActiveRecord::Reflection::HasManyReflection#polymorphic? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:470
                                                                                        • ActiveRecord::Reflection::ThroughReflection#source_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:670
                                                                                          • ActiveRecord::Reflection::ThroughReflection#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:686
                                                                                            • ActiveRecord::Reflection::ThroughReflection#active_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                            • ActiveRecord::Reflection::ThroughReflection#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                            • Book._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                              • Book._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                              • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                          • ActiveRecord::Reflection::HasManyReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                          • ActiveRecord::Reflection::ThroughReflection#source_reflection_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:801
                                                                                          • ActsAsTaggableOn::Tagging._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                            • ActsAsTaggableOn::Tagging._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                              • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                            • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                        • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:849
                                                                                        • ActiveRecord::Reflection::ThroughReflection#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                        • ActiveRecord::Reflection::ThroughReflection#source_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:670
                                                                                          • ActiveRecord::Reflection::ThroughReflection#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:686
                                                                                            • ActiveRecord::Reflection::ThroughReflection#active_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                            • ActiveRecord::Reflection::ThroughReflection#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                            • Book._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                              • Book._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                              • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                          • ActiveRecord::Reflection::HasManyReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                          • ActiveRecord::Reflection::ThroughReflection#source_reflection_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:801
                                                                                          • ActsAsTaggableOn::Tagging._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                            • ActsAsTaggableOn::Tagging._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                              • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                            • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                        • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:470
                                                                                        • ActiveRecord::Reflection::ThroughReflection#has_one? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                          • ActiveRecord::Reflection::HasManyReflection#has_one? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:445
                                                                                        • ActiveRecord::Reflection::ThroughReflection#check_validity_of_inverse! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:181
                                                                                          • ActiveRecord::Reflection::ThroughReflection#polymorphic? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                            • ActiveRecord::Reflection::HasManyReflection#polymorphic? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:470
                                                                                          • ActiveRecord::Reflection::ThroughReflection#has_inverse? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                            • ActiveRecord::Reflection::HasManyReflection#has_inverse? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:402
                                                                                              • ActiveRecord::Reflection::HasManyReflection#inverse_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:499
                                                                                                • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:500
                                                                                                  • ActiveRecord::Reflection::HasManyReflection#block in inverse_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:500
                                                                                      • ActiveRecord::Associations::HasManyThroughAssociation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_association.rb:81
                                                                                        • ActiveRecord::Associations::HasManyThroughAssociation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:42
                                                                                      • ActiveRecord::Associations::HasManyThroughAssociation#reset_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:101
                                                                                • Book#association_instance_set $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:176
                                                                              • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:157
                                                                              • ActiveRecord::Associations::HasManyThroughAssociation#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:117
                                                                                • ActiveRecord::Reflection::ThroughReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:649
                                                                              • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:158
                                                                            • ActiveRecord::Associations::Preloader#block in grouped_records $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:154
                                                                              • Book#association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:157
                                                                                • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:160
                                                                                • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:161
                                                                                • Book._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                  • Book._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                    • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                  • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                • ActiveRecord::Reflection::ThroughReflection#association_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                  • ActiveRecord::Reflection::HasManyReflection#association_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:447
                                                                                    • ActiveRecord::Reflection::HasManyReflection#macro $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:590
                                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:162
                                                                                  • ActiveRecord::Associations::HasManyThroughAssociation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/has_many_through_association.rb:9
                                                                                    • ActiveRecord::Associations::HasManyThroughAssociation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:24
                                                                                      • ActiveRecord::Reflection::ThroughReflection#check_validity! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:836
                                                                                        • ActiveRecord::Reflection::ThroughReflection#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:686
                                                                                          • ActiveRecord::Reflection::ThroughReflection#active_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                          • ActiveRecord::Reflection::ThroughReflection#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                          • Book._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                            • Book._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                              • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                            • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                        • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:837
                                                                                        • ActiveRecord::Reflection::ThroughReflection#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:686
                                                                                          • ActiveRecord::Reflection::ThroughReflection#active_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                          • ActiveRecord::Reflection::ThroughReflection#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                          • Book._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                            • Book._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                              • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                            • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                        • ActiveRecord::Reflection::HasManyReflection#polymorphic? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:470
                                                                                        • ActiveRecord::Reflection::ThroughReflection#source_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:670
                                                                                          • ActiveRecord::Reflection::ThroughReflection#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:686
                                                                                            • ActiveRecord::Reflection::ThroughReflection#active_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                            • ActiveRecord::Reflection::ThroughReflection#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                            • Book._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                              • Book._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                              • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                          • ActiveRecord::Reflection::HasManyReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                          • ActiveRecord::Reflection::ThroughReflection#source_reflection_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:801
                                                                                          • ActsAsTaggableOn::Tagging._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                            • ActsAsTaggableOn::Tagging._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                              • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                            • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                        • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:849
                                                                                        • ActiveRecord::Reflection::ThroughReflection#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                        • ActiveRecord::Reflection::ThroughReflection#source_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:670
                                                                                          • ActiveRecord::Reflection::ThroughReflection#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:686
                                                                                            • ActiveRecord::Reflection::ThroughReflection#active_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                            • ActiveRecord::Reflection::ThroughReflection#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                            • Book._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                              • Book._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                              • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                          • ActiveRecord::Reflection::HasManyReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                          • ActiveRecord::Reflection::ThroughReflection#source_reflection_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:801
                                                                                          • ActsAsTaggableOn::Tagging._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                            • ActsAsTaggableOn::Tagging._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                              • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                            • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                        • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:470
                                                                                        • ActiveRecord::Reflection::ThroughReflection#has_one? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                          • ActiveRecord::Reflection::HasManyReflection#has_one? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:445
                                                                                        • ActiveRecord::Reflection::ThroughReflection#check_validity_of_inverse! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:181
                                                                                          • ActiveRecord::Reflection::ThroughReflection#polymorphic? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                            • ActiveRecord::Reflection::HasManyReflection#polymorphic? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:470
                                                                                          • ActiveRecord::Reflection::ThroughReflection#has_inverse? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                            • ActiveRecord::Reflection::HasManyReflection#has_inverse? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:402
                                                                                              • ActiveRecord::Reflection::HasManyReflection#inverse_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:499
                                                                                                • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:500
                                                                                                  • ActiveRecord::Reflection::HasManyReflection#block in inverse_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:500
                                                                                      • ActiveRecord::Associations::HasManyThroughAssociation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_association.rb:81
                                                                                        • ActiveRecord::Associations::HasManyThroughAssociation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:42
                                                                                      • ActiveRecord::Associations::HasManyThroughAssociation#reset_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:101
                                                                                • Book#association_instance_set $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:176
                                                                              • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:157
                                                                              • ActiveRecord::Associations::HasManyThroughAssociation#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:117
                                                                                • ActiveRecord::Reflection::ThroughReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:649
                                                                              • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:158
                                                                        • Enumerable#flat_map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:143
                                                                          • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:143
                                                                            • ActiveRecord::Associations::Preloader#block in preloaders_for_one $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:143
                                                                              • Enumerable#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:144
                                                                                • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:144
                                                                                  • ActiveRecord::Associations::Preloader#block (2 levels) in preloaders_for_one $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:144
                                                                                    • ActiveRecord::Associations::Preloader#preloader_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:184
                                                                                      • Array#first $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:187
                                                                                      • ActiveRecord::Reflection::ThroughReflection#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                      • Book#association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:157
                                                                                        • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                                        • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:160
                                                                                      • ActiveRecord::Associations::HasManyThroughAssociation#loaded? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:58
                                                                                      • ActiveRecord::Reflection::ThroughReflection#check_preloadable! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                        • ActiveRecord::Reflection::HasManyReflection#check_preloadable! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:358
                                                                                          • Proc#arity $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:361
                                                                                      • ActiveRecord::Reflection::ThroughReflection#macro $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                        • ActiveRecord::Reflection::HasManyReflection#macro $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:590
                                                                                      • ActiveRecord::Reflection::ThroughReflection#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:145
                                                                                      • ActiveRecord::Associations::Preloader::HasManyThrough#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:8
                                                                                        • Array#first $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:13
                                                                                        • Array#first $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:13
                                                                                        • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:13
                                                                                    • ActiveRecord::Associations::Preloader::HasManyThrough#run $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:19
                                                                                      • ActiveRecord::Associations::Preloader::HasManyThrough#preload $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/collection_association.rb:12
                                                                                        • ActiveRecord::Associations::Preloader::HasManyThrough#associated_records_by_owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/has_many_through.rb:7
                                                                                          • ActiveRecord::Associations::Preloader::HasManyThrough#associated_records_by_owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:13
                                                                                            • ActiveRecord::Associations::Preloader::HasManyThrough#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:5
                                                                                              • ActiveRecord::Reflection::ThroughReflection#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:686
                                                                                                • ActiveRecord::Reflection::ThroughReflection#active_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                • ActiveRecord::Reflection::ThroughReflection#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                • Book._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                  • Book._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                    • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                  • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                            • ActiveRecord::Associations::Preloader::HasManyThrough#through_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:75
                                                                                              • ActiveRecord::Associations::Preloader::HasManyThrough#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:5
                                                                                                • ActiveRecord::Reflection::ThroughReflection#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:686
                                                                                                  • ActiveRecord::Reflection::ThroughReflection#active_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                  • ActiveRecord::Reflection::ThroughReflection#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                  • Book._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                    • Book._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                      • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                    • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                              • ActiveRecord::Reflection::HasManyReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                              • ActsAsTaggableOn::Tagging.unscoped $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:32
                                                                                                • Kernel#block_given? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:33
                                                                                                • ActsAsTaggableOn::Tagging.relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:253
                                                                                                  • ActsAsTaggableOn::Tagging.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                  • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                    • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                      • ActsAsTaggableOn::Tagging.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                        • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                  • ActsAsTaggableOn::Tagging.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                              • ActiveRecord::Associations::Preloader::HasManyThrough#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:71
                                                                                                • ActiveRecord::Reflection::ThroughReflection#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                              • ActiveRecord::Associations::Preloader::HasManyThrough#reflection_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:127
                                                                                                • ActiveRecord::Reflection::ThroughReflection#scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                • ActsAsTaggableOn::Tag.unscoped $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:32
                                                                                                  • Kernel#block_given? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:33
                                                                                                  • ActsAsTaggableOn::Tag.relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:253
                                                                                                    • ActsAsTaggableOn::Tag.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                    • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                      • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                        • ActsAsTaggableOn::Tag.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                          • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                      • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                    • ActsAsTaggableOn::Tag.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                                • ActiveRecord::Reflection::ThroughReflection#scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                • BasicObject#instance_exec $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:128
                                                                                                  • ActsAsTaggableOn::Tag::ActiveRecord_Relation#block in initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/builder/association.rb:65
                                                                                                    • BasicObject#instance_exec $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/builder/association.rb:65
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#block (3 levels) in initialize_acts_as_taggable_on_core $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:33
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:317
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_if_method_has_arguments! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1160
                                                                                                            • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1161
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                            • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                              • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                                  • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                                  • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                  • ActsAsTaggableOn::Tag::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:322
                                                                                                            • ActsAsTaggableOn::Tag::ActiveRecord_Relation#preprocess_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1119
                                                                                                              • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1120
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#validate_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1109
                                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1110
                                                                                                              • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                              • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                              • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                              • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1125
                                                                                                              • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1128
                                                                                                              • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1141
                                                                                                            • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                            • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                              • ActiveRecord::Associations::Preloader::HasManyThrough#reflection_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:127
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:625
                                                                                                • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:626
                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#references! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:202
                                                                                                • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:203
                                                                                                • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:204
                                                                                                  • NilClass#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:204
                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#references_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                • Array#| $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:206
                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#references_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#eager_loading? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:584
                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#eager_load_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:586
                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:587
                                                                                            • ActiveRecord::Associations::Preloader#preload $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:94
                                                                                              • Array.wrap $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:36
                                                                                                • Kernel#nil? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:37
                                                                                                • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:39
                                                                                                • Array#to_ary $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:40
                                                                                              • Array#compact $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:95
                                                                                              • Array#uniq $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:95
                                                                                                • Book#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:398
                                                                                                  • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                    • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                      • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                  • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                    • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                      • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                  • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:400
                                                                                                • Book#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:398
                                                                                                  • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                    • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                      • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                  • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                    • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                      • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                  • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:400
                                                                                              • Array.wrap $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:36
                                                                                                • Kernel#nil? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:37
                                                                                                • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:39
                                                                                              • Enumerable#flat_map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:102
                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:102
                                                                                                  • ActiveRecord::Associations::Preloader#block in preload $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:102
                                                                                                    • ActiveRecord::Associations::Preloader#preloaders_on $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:110
                                                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:112
                                                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:114
                                                                                                      • ActiveRecord::Associations::Preloader#preloaders_for_one $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:142
                                                                                                        • ActiveRecord::Associations::Preloader#grouped_records $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:152
                                                                                                          • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:154
                                                                                                            • ActiveRecord::Associations::Preloader#block in grouped_records $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:154
                                                                                                              • Book#association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:157
                                                                                                                • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:160
                                                                                                                • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:161
                                                                                                                • Book._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                                  • Book._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                    • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                  • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                                                • ActiveRecord::Reflection::HasManyReflection#association_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:447
                                                                                                                  • ActiveRecord::Reflection::HasManyReflection#macro $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:590
                                                                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:162
                                                                                                                  • ActiveRecord::Associations::HasManyAssociation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:24
                                                                                                                    • ActiveRecord::Reflection::HasManyReflection#check_validity! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:354
                                                                                                                      • ActiveRecord::Reflection::HasManyReflection#check_validity_of_inverse! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:181
                                                                                                                        • ActiveRecord::Reflection::HasManyReflection#polymorphic? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:470
                                                                                                                        • ActiveRecord::Reflection::HasManyReflection#has_inverse? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:402
                                                                                                                          • ActiveRecord::Reflection::HasManyReflection#inverse_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:499
                                                                                                                            • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:500
                                                                                                                              • ActiveRecord::Reflection::HasManyReflection#block in inverse_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:500
                                                                                                                    • ActiveRecord::Associations::HasManyAssociation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_association.rb:81
                                                                                                                      • ActiveRecord::Associations::HasManyAssociation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:42
                                                                                                                    • ActiveRecord::Associations::HasManyAssociation#reset_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:101
                                                                                                                • Book#association_instance_set $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:176
                                                                                                              • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:157
                                                                                                              • ActiveRecord::Associations::HasManyAssociation#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:117
                                                                                                                • ActiveRecord::Reflection::HasManyReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                              • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:158
                                                                                                            • ActiveRecord::Associations::Preloader#block in grouped_records $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:154
                                                                                                              • Book#association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:157
                                                                                                                • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:160
                                                                                                                • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:161
                                                                                                                • Book._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                                  • Book._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                    • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                  • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                                                • ActiveRecord::Reflection::HasManyReflection#association_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:447
                                                                                                                  • ActiveRecord::Reflection::HasManyReflection#macro $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:590
                                                                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:162
                                                                                                                  • ActiveRecord::Associations::HasManyAssociation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:24
                                                                                                                    • ActiveRecord::Reflection::HasManyReflection#check_validity! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:354
                                                                                                                      • ActiveRecord::Reflection::HasManyReflection#check_validity_of_inverse! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:181
                                                                                                                        • ActiveRecord::Reflection::HasManyReflection#polymorphic? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:470
                                                                                                                        • ActiveRecord::Reflection::HasManyReflection#has_inverse? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:402
                                                                                                                          • ActiveRecord::Reflection::HasManyReflection#inverse_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:499
                                                                                                                            • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:500
                                                                                                                              • ActiveRecord::Reflection::HasManyReflection#block in inverse_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:500
                                                                                                                    • ActiveRecord::Associations::HasManyAssociation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_association.rb:81
                                                                                                                      • ActiveRecord::Associations::HasManyAssociation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:42
                                                                                                                    • ActiveRecord::Associations::HasManyAssociation#reset_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:101
                                                                                                                • Book#association_instance_set $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:176
                                                                                                              • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:157
                                                                                                              • ActiveRecord::Associations::HasManyAssociation#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:117
                                                                                                                • ActiveRecord::Reflection::HasManyReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                              • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:158
                                                                                                        • Enumerable#flat_map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:143
                                                                                                          • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:143
                                                                                                            • ActiveRecord::Associations::Preloader#block in preloaders_for_one $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:143
                                                                                                              • Enumerable#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:144
                                                                                                                • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:144
                                                                                                                  • ActiveRecord::Associations::Preloader#block (2 levels) in preloaders_for_one $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:144
                                                                                                                    • ActiveRecord::Associations::Preloader#preloader_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:184
                                                                                                                      • Array#first $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:187
                                                                                                                      • Book#association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:157
                                                                                                                        • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                                                                        • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:160
                                                                                                                      • ActiveRecord::Associations::HasManyAssociation#loaded? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:58
                                                                                                                      • ActiveRecord::Reflection::HasManyReflection#check_preloadable! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:358
                                                                                                                        • Proc#arity $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:361
                                                                                                                      • ActiveRecord::Reflection::HasManyReflection#macro $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:590
                                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:145
                                                                                                                      • ActiveRecord::Associations::Preloader::HasMany#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:8
                                                                                                                        • Array#first $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:13
                                                                                                                        • Array#first $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:13
                                                                                                                        • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:13
                                                                                                                    • ActiveRecord::Associations::Preloader::HasMany#run $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:19
                                                                                                                      • ActiveRecord::Associations::Preloader::HasMany#preload $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/collection_association.rb:12
                                                                                                                        • ActiveRecord::Associations::Preloader::HasMany#associated_records_by_owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:77
                                                                                                                          • ActiveRecord::Associations::Preloader::HasMany#owners_by_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:59
                                                                                                                            • ActiveRecord::Associations::Preloader::HasMany#key_conversion_required? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:102
                                                                                                                              • ActiveRecord::Associations::Preloader::HasMany#association_key_type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:106
                                                                                                                                • ActiveRecord::Associations::Preloader::HasMany#association_key_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/has_many.rb:6
                                                                                                                                  • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:329
                                                                                                                                • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:107
                                                                                                                                • ActsAsTaggableOn::Tagging.type_for_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:243
                                                                                                                                  • ActsAsTaggableOn::Tagging.column_types $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:237
                                                                                                                                • ActiveRecord::Type::Integer#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:11
                                                                                                                              • ActiveRecord::Associations::Preloader::HasMany#owner_key_type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:110
                                                                                                                                • ActiveRecord::Associations::Preloader::HasMany#owner_key_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/has_many.rb:10
                                                                                                                                  • ActiveRecord::Reflection::HasManyReflection#active_record_primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:342
                                                                                                                                • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:111
                                                                                                                                • Book.type_for_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:243
                                                                                                                                  • Book.column_types $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:237
                                                                                                                                • ActiveRecord::Type::Integer#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:11
                                                                                                                            • Enumerable#group_by $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:65
                                                                                                                              • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:65
                                                                                                                                • ActiveRecord::Associations::Preloader::HasMany#block in owners_by_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:65
                                                                                                                                  • ActiveRecord::Associations::Preloader::HasMany#owner_key_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/has_many.rb:10
                                                                                                                                    • ActiveRecord::Reflection::HasManyReflection#active_record_primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:342
                                                                                                                                  • Book#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:354
                                                                                                                                    • Book#read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:84
                                                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:85
                                                                                                                                      • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:86
                                                                                                                                      • Book.primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/primary_key.rb:72
                                                                                                                                      • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                                                • ActiveRecord::Associations::Preloader::HasMany#block in owners_by_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:65
                                                                                                                                  • ActiveRecord::Associations::Preloader::HasMany#owner_key_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/has_many.rb:10
                                                                                                                                    • ActiveRecord::Reflection::HasManyReflection#active_record_primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:342
                                                                                                                                  • Book#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:354
                                                                                                                                    • Book#read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:84
                                                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:85
                                                                                                                                      • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:86
                                                                                                                                      • Book.primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/primary_key.rb:72
                                                                                                                                      • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                                          • Hash#keys $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:79
                                                                                                                          • Array#compact $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:79
                                                                                                                          • Enumerable#each_with_object $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:82
                                                                                                                            • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:82
                                                                                                                              • ActiveRecord::Associations::Preloader::HasMany#block in associated_records_by_owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:82
                                                                                                                                • Book#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:398
                                                                                                                                  • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                                                    • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                                                      • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                                                  • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                                                    • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                                                      • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                                                  • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:400
                                                                                                                              • ActiveRecord::Associations::Preloader::HasMany#block in associated_records_by_owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:82
                                                                                                                                • Book#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:398
                                                                                                                                  • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                                                    • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                                                      • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                                                  • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                                                    • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                                                      • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                                                  • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:400
                                                                                                                          • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:86
                                                                                                                          • ActsAsTaggableOn::Tagging.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                                                                                                            • ActsAsTaggableOn::Tagging.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                                                                                                              • ActsAsTaggableOn::Tagging.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                                                                                                • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                                  • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                    • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                    • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                • ActsAsTaggableOn::Tagging.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                  • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                              • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                                                                                                                • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                                                                                                  • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                                                                                                    • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                                                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                  • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                                                                                                                  • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                                                                                                                    • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                                                                                                                      • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                                        • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                          • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#in_clause_length $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_limits.rb:51
                                                                                                                          • Enumerable#each_slice $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:89
                                                                                                                          • ActiveRecord::Associations::Preloader::HasMany#load_slices $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:114
                                                                                                                            • Enumerable#flat_map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:115
                                                                                                                              • Enumerator#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:115
                                                                                                                                • Enumerable#each_slice $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:115
                                                                                                                                  • Array#length $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:115
                                                                                                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:115
                                                                                                                                    • ActiveRecord::Associations::Preloader::HasMany#block in load_slices $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:115
                                                                                                                                      • ActiveRecord::Associations::Preloader::HasMany#records_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:31
                                                                                                                                        • ActiveRecord::Associations::Preloader::HasMany#query_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:35
                                                                                                                                          • ActiveRecord::Associations::Preloader::HasMany#scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:27
                                                                                                                                            • ActiveRecord::Associations::Preloader::HasMany#build_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/collection_association.rb:8
                                                                                                                                              • ActiveRecord::Associations::Preloader::HasMany#build_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:131
                                                                                                                                                • ActsAsTaggableOn::Tagging.unscoped $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:32
                                                                                                                                                  • Kernel#block_given? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:33
                                                                                                                                                  • ActsAsTaggableOn::Tagging.relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:253
                                                                                                                                                    • ActsAsTaggableOn::Tagging.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                                                                    • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                                                                      • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                                                                        • ActsAsTaggableOn::Tagging.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                                                                          • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                                                                      • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                                                                    • ActsAsTaggableOn::Tagging.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                                                                                • ActiveRecord::Associations::Preloader::HasMany#reflection_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:127
                                                                                                                                                  • ActsAsTaggableOn::Tagging.unscoped $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:32
                                                                                                                                                    • Kernel#block_given? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:33
                                                                                                                                                    • ActsAsTaggableOn::Tagging.relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:253
                                                                                                                                                      • ActsAsTaggableOn::Tagging.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                                                                      • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                                                                        • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                                                                          • ActsAsTaggableOn::Tagging.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                                                                            • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                                                                        • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                                                                      • ActsAsTaggableOn::Tagging.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                                                                                  • BasicObject#instance_exec $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:128
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/builder/association.rb:65
                                                                                                                                                      • BasicObject#instance_exec $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/builder/association.rb:65
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block (3 levels) in initialize_acts_as_taggable_on_core $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:28
                                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:144
                                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_if_method_has_arguments! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1160
                                                                                                                                                              • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1161
                                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                                                                              • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                                                                • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                                                                                    • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                                                                                    • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:149
                                                                                                                                                              • Array#reject! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:150
                                                                                                                                                                • Symbol#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:16
                                                                                                                                                                  • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:17
                                                                                                                                                                  • Symbol#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:17
                                                                                                                                                              • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:151
                                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                              • Array#| $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:153
                                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:317
                                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_if_method_has_arguments! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1160
                                                                                                                                                              • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1161
                                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                                                                              • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                                                                • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                                                                                    • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                                                                                    • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:322
                                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#preprocess_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1119
                                                                                                                                                                • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1120
                                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#validate_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1109
                                                                                                                                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1110
                                                                                                                                                                • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                                                                • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                                                                • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                                                                • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1125
                                                                                                                                                                • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1128
                                                                                                                                                                • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1141
                                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:568
                                                                                                                                                            • Hash#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:569
                                                                                                                                                            • Hash#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:571
                                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                                                                              • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                                                                • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                                                                                    • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                                                                                    • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:578
                                                                                                                                                              • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:579
                                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#sanitize_for_mass_assignment $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/forbidden_attributes_protection.rb:19
                                                                                                                                                                • Kernel#respond_to? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/forbidden_attributes_protection.rb:20
                                                                                                                                                              • ActiveRecord::PredicateBuilder.references $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:91
                                                                                                                                                                • Enumerable#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:92
                                                                                                                                                                  • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:92
                                                                                                                                                                    • ActiveRecord::PredicateBuilder.block in references $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:92
                                                                                                                                                                      • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:93
                                                                                                                                                                      • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:96
                                                                                                                                                                      • String#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:97
                                                                                                                                                                • Array#compact $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:99
                                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#references! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:202
                                                                                                                                                                • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:203
                                                                                                                                                                • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:204
                                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#references_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                                • Array#| $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:206
                                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#references_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#build_where $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:947
                                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:949
                                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:949
                                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:951
                                                                                                                                                                • ActiveRecord::PredicateBuilder.resolve_column_aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:8
                                                                                                                                                                  • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:11
                                                                                                                                                                  • Hash#keys $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:12
                                                                                                                                                                  • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:12
                                                                                                                                                                    • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:12
                                                                                                                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:12
                                                                                                                                                                      • ActiveRecord::PredicateBuilder.block in resolve_column_aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:12
                                                                                                                                                                        • ActsAsTaggableOn::Tagging.attribute_alias? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:218
                                                                                                                                                                          • ActsAsTaggableOn::Tagging.attribute_aliases -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                            • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                          • Symbol#to_s $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                                          • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#create_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:966
                                                                                                                                                                  • Enumerable#partition $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:967
                                                                                                                                                                    • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:967
                                                                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in create_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:967
                                                                                                                                                                        • ActiveRecord::PredicateBuilder.can_be_bound? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:149
                                                                                                                                                                          • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:150
                                                                                                                                                                          • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:151
                                                                                                                                                                          • ActiveRecord::PredicateBuilder.handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:131
                                                                                                                                                                            • Enumerable#detect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                              • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                                • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                                  • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                                • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                                  • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                                • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                                  • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                                • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                                  • ActiveRecord::Base.=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:228
                                                                                                                                                                                    • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:229
                                                                                                                                                                                • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                                  • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                                • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                                  • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                            • Array#last $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                        • ActsAsTaggableOn::Tagging.columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attributes.rb:97
                                                                                                                                                                        • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:969
                                                                                                                                                                        • Hash#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:969
                                                                                                                                                                        • ActsAsTaggableOn::Tagging.reflect_on_aggregation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:61
                                                                                                                                                                          • ActsAsTaggableOn::Tagging.aggregate_reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                            • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                          • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:62
                                                                                                                                                                  • Enumerable#partition $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:973
                                                                                                                                                                    • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:973
                                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:48
                                                                                                                                                                    • ActsAsTaggableOn::Tagging.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                                                                                                                                                      • ActsAsTaggableOn::Tagging.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                                                                                                                                                        • ActsAsTaggableOn::Tagging.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                                                                                                                                          • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                                                                            • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                                                              • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                              • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                          • ActsAsTaggableOn::Tagging.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                            • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                        • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                                                                                                                                                          • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                                                                                                                                            • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                                                                                                                                              • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                                                                                                                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                                            • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                                                                                                                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                                          • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                                                                                                                                                            • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                                                                                                                                                              • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                                                                                                                                                                • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                                                                                  • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                                                                    • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                                    • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:982
                                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in create_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:982
                                                                                                                                                                      • ActsAsTaggableOn::Tagging.columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attributes.rb:97
                                                                                                                                                                      • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:983
                                                                                                                                                                      • Array#push $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:983
                                                                                                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#substitute_at $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:280
                                                                                                                                                                        • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:281
                                                                                                                                                                          • BasicObject#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:281
                                                                                                                                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:987
                                                                                                                                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:994
                                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                                                • ActsAsTaggableOn::Tagging.expand_hash_conditions_for_aggregates $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/sanitization.rb:56
                                                                                                                                                                  • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/sanitization.rb:58
                                                                                                                                                                    • ActsAsTaggableOn::Tagging.block in expand_hash_conditions_for_aggregates $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/sanitization.rb:58
                                                                                                                                                                      • Symbol#to_sym $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/sanitization.rb:59
                                                                                                                                                                      • ActsAsTaggableOn::Tagging.reflect_on_aggregation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:61
                                                                                                                                                                        • ActsAsTaggableOn::Tagging.aggregate_reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                          • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                        • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:62
                                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#add_relations_to_bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1166
                                                                                                                                                                  • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1167
                                                                                                                                                                  • Hash#each_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1168
                                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in add_relations_to_bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1168
                                                                                                                                                                      • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1169
                                                                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#add_relations_to_bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1166
                                                                                                                                                                        • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1167
                                                                                                                                                                • ActiveRecord::PredicateBuilder.build_from_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:20
                                                                                                                                                                  • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:23
                                                                                                                                                                    • ActiveRecord::PredicateBuilder.block in build_from_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:23
                                                                                                                                                                      • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:26
                                                                                                                                                                      • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:38
                                                                                                                                                                      • String#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:40
                                                                                                                                                                      • ActiveRecord::PredicateBuilder.expand $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:52
                                                                                                                                                                        • ActsAsTaggableOn::Tagging._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                                                                                          • ActsAsTaggableOn::Tagging._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                            • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                          • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                                                                                                        • Arel::Table#[] $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:99
                                                                                                                                                                          • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                                                                                            • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                                                                                        • ActiveRecord::PredicateBuilder.build $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:126
                                                                                                                                                                          • ActiveRecord::PredicateBuilder.handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:131
                                                                                                                                                                            • Enumerable#detect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                              • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                                • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                                  • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                                • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                                  • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                                • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                                  • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                                • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                                  • ActiveRecord::Base.=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:228
                                                                                                                                                                                    • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:229
                                                                                                                                                                                • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                                  • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                                • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                                  • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                            • Array#last $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                          • ActiveRecord::PredicateBuilder.block in <class:PredicateBuilder> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:117
                                                                                                                                                                            • Arel::Attributes::Attribute#eq $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:15
                                                                                                                                                                              • Arel::Attributes::Attribute#quoted_node $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:207
                                                                                                                                                                                • Arel::Nodes.build_quoted $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:81
                                                                                                                                                                                  • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:16
                                                                                                                                                                                • Arel::Nodes::Equality#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                                                                                  • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                                                                                      • Array#concat $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:45
                                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:625
                                                                                                                                                  • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:626
                                                                                                                                                • ActiveRecord::Associations::Preloader::HasMany#reflection_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:127
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:625
                                                                                                                                                  • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:626
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                • Kernel#Array $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:139
                                                                                                                                                • Kernel#Array $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:139
                                                                                                                                                  • NilClass#to_a $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:139
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                                • Kernel#Array $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:140
                                                                                                                                                • Kernel#Array $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:140
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#references_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                                • ActiveRecord::Associations::Preloader::HasMany#table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:39
                                                                                                                                                  • ActsAsTaggableOn::Tagging.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                                                                • Arel.star $GemPath0/gems/arel-6.0.4/lib/arel.rb:30
                                                                                                                                                  • Arel.sql $GemPath0/gems/arel-6.0.4/lib/arel.rb:26
                                                                                                                                                    • Class#new $GemPath0/gems/arel-6.0.4/lib/arel.rb:27
                                                                                                                                                      • String#initialize $GemPath0/gems/arel-6.0.4/lib/arel.rb:27
                                                                                                                                                • Arel::Table#[] $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:99
                                                                                                                                                  • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                                                                    • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#_select! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:258
                                                                                                                                                  • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:259
                                                                                                                                                  • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:260
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in _select! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:260
                                                                                                                                                      • ActsAsTaggableOn::Tagging.attribute_alias? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:218
                                                                                                                                                        • ActsAsTaggableOn::Tagging.attribute_aliases -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                          • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                        • Struct#inspect $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                          • Kernel#inspect $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                            • String#inspect $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                            • ActsAsTaggableOn::Tagging.inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:212
                                                                                                                                                              • ActsAsTaggableOn::Tagging.abstract_class? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:130
                                                                                                                                                              • ActsAsTaggableOn::Tagging.connected? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:117
                                                                                                                                                                • ActsAsTaggableOn::Tagging.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                                                                                                                                  • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                                                                    • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                                                      • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                      • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                  • ActsAsTaggableOn::Tagging.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                    • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                • ActiveRecord::ConnectionAdapters::ConnectionHandler#connected? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:578
                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                                                                                                                                      • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                                                                                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                                    • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                                                                                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::ConnectionPool#connected? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:298
                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::ConnectionPool#mon_synchronize /usr/local/lib/ruby/2.5.0/monitor.rb:223
                                                                                                                                                                      • ActiveRecord::ConnectionAdapters::ConnectionPool#mon_enter /usr/local/lib/ruby/2.5.0/monitor.rb:183
                                                                                                                                                                        • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:184
                                                                                                                                                                        • Thread::Mutex#lock /usr/local/lib/ruby/2.5.0/monitor.rb:185
                                                                                                                                                                        • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:186
                                                                                                                                                                      • ActiveRecord::ConnectionAdapters::ConnectionPool#block in connected? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:299
                                                                                                                                                                        • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:299
                                                                                                                                                                      • ActiveRecord::ConnectionAdapters::ConnectionPool#mon_exit /usr/local/lib/ruby/2.5.0/monitor.rb:195
                                                                                                                                                                        • ActiveRecord::ConnectionAdapters::ConnectionPool#mon_check_owner /usr/local/lib/ruby/2.5.0/monitor.rb:259
                                                                                                                                                                          • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:260
                                                                                                                                                                        • Thread::Mutex#unlock /usr/local/lib/ruby/2.5.0/monitor.rb:200
                                                                                                                                                              • ActsAsTaggableOn::Tagging.table_exists? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:229
                                                                                                                                                                • ActsAsTaggableOn::Tagging.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                                                                                                                                                  • ActsAsTaggableOn::Tagging.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                                                                                                                                                    • ActsAsTaggableOn::Tagging.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                                                                                                                                      • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                                                                        • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                          • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                      • ActsAsTaggableOn::Tagging.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                        • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                                                                                                                                                      • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                                                                                                                                        • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                                                                                                                                          • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                                                                                                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                                        • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                                                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                                      • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                                                                                                                                                        • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                                                                                                                                                          • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                                                                                                                                                            • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                                                                              • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                                                                • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                                • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                                • ActsAsTaggableOn::Tagging.table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:125
                                                                                                                                                                • ActiveRecord::ConnectionAdapters::SchemaCache#table_exists? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:21
                                                                                                                                                                  • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:23
                                                                                                                                                              • ActsAsTaggableOn::Tagging.columns $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attributes.rb:92
                                                                                                                                                              • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                                                • ActsAsTaggableOn::Tagging.block in inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::Column#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/column.rb:18
                                                                                                                                                                    • ActiveRecord::Type::Integer#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:11
                                                                                                                                                                  • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                                                • ActsAsTaggableOn::Tagging.block in inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::Column#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/column.rb:18
                                                                                                                                                                    • ActiveRecord::Type::Integer#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:11
                                                                                                                                                                  • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                                                • ActsAsTaggableOn::Tagging.block in inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::Column#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/column.rb:18
                                                                                                                                                                    • ActiveRecord::Type::Integer#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:11
                                                                                                                                                                  • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                                                • ActsAsTaggableOn::Tagging.block in inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::Column#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/column.rb:18
                                                                                                                                                                    • ActiveRecord::Type::String#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:4
                                                                                                                                                                  • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                                                • ActsAsTaggableOn::Tagging.block in inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::Column#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/column.rb:18
                                                                                                                                                                    • ActiveRecord::Type::Integer#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:11
                                                                                                                                                                  • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                                                • ActsAsTaggableOn::Tagging.block in inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::Column#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/column.rb:18
                                                                                                                                                                    • ActiveRecord::Type::String#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:4
                                                                                                                                                                  • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                                                • ActsAsTaggableOn::Tagging.block in inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::Column#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/column.rb:18
                                                                                                                                                                    • ActiveRecord::Type::String#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:4
                                                                                                                                                                  • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                                                • ActsAsTaggableOn::Tagging.block in inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::Column#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/column.rb:18
                                                                                                                                                                    • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#type -> block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                                                                                                      • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                                                                                                        • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /usr/local/lib/ruby/2.5.0/delegate.rb:392
                                                                                                                                                                        • ActiveRecord::Type::DateTime#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/date_time.rb:6
                                                                                                                                                                  • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                                              • Array#* $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                                              • Module#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:221
                                                                                                                                                            • NilClass#inspect $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                            • Array#inspect $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                            • NilClass#inspect $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                            • NilClass#inspect $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                          • String#inspect $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                        • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#select_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#select_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:149
                                                                                                                                                  • Array#reject! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:150
                                                                                                                                                    • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:150
                                                                                                                                                  • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:151
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                  • Array#| $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:153
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#joins! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:433
                                                                                                                                                  • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:434
                                                                                                                                                  • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:435
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#joins_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:322
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#preprocess_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1119
                                                                                                                                                    • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1120
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#validate_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1109
                                                                                                                                                      • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1110
                                                                                                                                                    • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                                                      • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                                                    • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                                                    • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                                                    • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1125
                                                                                                                                                    • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1128
                                                                                                                                                    • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1141
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                                • ActiveRecord::Associations::Preloader::HasMany#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:71
                                                                                                                                                • ActsAsTaggableOn::Tagging.table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:125
                                                                                                                                                • Book.base_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:100
                                                                                                                                                  • Module#< $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:101
                                                                                                                                                  • Class#superclass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:105
                                                                                                                                                • Book.sti_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:134
                                                                                                                                                  • Book.store_full_sti_class -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                    • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                  • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:135
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:578
                                                                                                                                                  • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:579
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#sanitize_for_mass_assignment $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/forbidden_attributes_protection.rb:19
                                                                                                                                                    • Kernel#respond_to? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/forbidden_attributes_protection.rb:20
                                                                                                                                                  • ActiveRecord::PredicateBuilder.references $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:91
                                                                                                                                                    • Enumerable#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:92
                                                                                                                                                      • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:92
                                                                                                                                                        • ActiveRecord::PredicateBuilder.block in references $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:92
                                                                                                                                                          • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:93
                                                                                                                                                    • Array#compact $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:99
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#references! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:202
                                                                                                                                                    • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:203
                                                                                                                                                    • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:204
                                                                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:204
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#references_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                    • Array#| $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:206
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#references_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#build_where $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:947
                                                                                                                                                    • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:949
                                                                                                                                                    • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:949
                                                                                                                                                    • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:951
                                                                                                                                                    • ActiveRecord::PredicateBuilder.resolve_column_aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:8
                                                                                                                                                      • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:11
                                                                                                                                                      • Hash#keys $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:12
                                                                                                                                                      • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:12
                                                                                                                                                        • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:12
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:12
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#create_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:966
                                                                                                                                                      • Enumerable#partition $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:967
                                                                                                                                                        • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:967
                                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in create_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:967
                                                                                                                                                            • ActiveRecord::PredicateBuilder.can_be_bound? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:149
                                                                                                                                                              • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:150
                                                                                                                                                              • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:151
                                                                                                                                                      • Enumerable#partition $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:973
                                                                                                                                                        • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:973
                                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in create_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:973
                                                                                                                                                            • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:974
                                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#association_for_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:999
                                                                                                                                                              • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1000
                                                                                                                                                              • ActsAsTaggableOn::Tagging._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                                                                                • ActsAsTaggableOn::Tagging._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                  • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                                                                                              • String#singularize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/string/inflections.rb:54
                                                                                                                                                                • ActiveSupport::Inflector.singularize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:48
                                                                                                                                                                  • ActiveSupport::Inflector.inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:203
                                                                                                                                                                    • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:204
                                                                                                                                                                    • ActiveSupport::Inflector::Inflections.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:30
                                                                                                                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                                  • ActiveSupport::Inflector.apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:372
                                                                                                                                                                    • String#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:373
                                                                                                                                                                    • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:373
                                                                                                                                                                      • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:373
                                                                                                                                                                        • String#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:373
                                                                                                                                                                    • ActiveSupport::Inflector.inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:203
                                                                                                                                                                      • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:204
                                                                                                                                                                      • ActiveSupport::Inflector::Inflections.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:30
                                                                                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                                    • String#downcase $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:375
                                                                                                                                                                    • String#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:375
                                                                                                                                                                    • Array#include? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:375
                                                                                                                                                                    • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                      • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                                        • String#sub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:378
                                                                                                                                                              • ActsAsTaggableOn::Tagging._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                                                                                • ActsAsTaggableOn::Tagging._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                  • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:48
                                                                                                                                                        • ActsAsTaggableOn::Tagging.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                                                                                                                                          • ActsAsTaggableOn::Tagging.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                                                                                                                                            • ActsAsTaggableOn::Tagging.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                                                                                                                              • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                                                                • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                                                  • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                  • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                              • ActsAsTaggableOn::Tagging.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                            • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                                                                                                                                              • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                                                                                                                                • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                                                                                                                                  • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                                • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                                                                                                                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                              • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                                                                                                                                                • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                                                                                                                                                  • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                                                                                                                                                    • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                                                                      • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                                                        • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                        • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                      • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:982
                                                                                                                                                      • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:987
                                                                                                                                                      • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:994
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in create_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:994
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                                    • ActsAsTaggableOn::Tagging.expand_hash_conditions_for_aggregates $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/sanitization.rb:56
                                                                                                                                                      • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/sanitization.rb:58
                                                                                                                                                        • ActsAsTaggableOn::Tagging.block in expand_hash_conditions_for_aggregates $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/sanitization.rb:58
                                                                                                                                                          • String#to_sym $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/sanitization.rb:59
                                                                                                                                                          • ActsAsTaggableOn::Tagging.reflect_on_aggregation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:61
                                                                                                                                                            • ActsAsTaggableOn::Tagging.aggregate_reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                              • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                            • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:62
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#add_relations_to_bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1166
                                                                                                                                                      • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1167
                                                                                                                                                      • Hash#each_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1168
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in add_relations_to_bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1168
                                                                                                                                                          • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1169
                                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#add_relations_to_bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1166
                                                                                                                                                            • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1167
                                                                                                                                                            • Hash#each_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1168
                                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in add_relations_to_bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1168
                                                                                                                                                                • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1169
                                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#add_relations_to_bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1166
                                                                                                                                                                  • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1167
                                                                                                                                                    • ActiveRecord::PredicateBuilder.build_from_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:20
                                                                                                                                                      • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:23
                                                                                                                                                        • ActiveRecord::PredicateBuilder.block in build_from_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:23
                                                                                                                                                          • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:26
                                                                                                                                                          • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:30
                                                                                                                                                            • Arel::Table#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:14
                                                                                                                                                              • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:15
                                                                                                                                                              • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:22
                                                                                                                                                          • ActsAsTaggableOn::Tagging._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                                                                            • ActsAsTaggableOn::Tagging._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                              • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                            • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                                                                                          • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:33
                                                                                                                                                            • ActiveRecord::PredicateBuilder.block (2 levels) in build_from_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:33
                                                                                                                                                              • ActiveRecord::PredicateBuilder.expand $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:52
                                                                                                                                                                • Arel::Table#[] $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:99
                                                                                                                                                                  • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                                                                                    • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                                                                                • ActiveRecord::PredicateBuilder.build $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:126
                                                                                                                                                                  • ActiveRecord::PredicateBuilder.handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:131
                                                                                                                                                                    • Enumerable#detect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                      • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                        • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                        • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                        • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                        • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                          • ActiveRecord::Base.=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:228
                                                                                                                                                                            • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:229
                                                                                                                                                                        • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                        • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                    • Array#last $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                  • ActiveRecord::PredicateBuilder.block in <class:PredicateBuilder> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:117
                                                                                                                                                                    • Arel::Attributes::Attribute#eq $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:15
                                                                                                                                                                      • Arel::Attributes::Attribute#quoted_node $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:207
                                                                                                                                                                        • Arel::Nodes.build_quoted $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:81
                                                                                                                                                                          • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                                                                          • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                                                                          • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                                                                          • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                                                                          • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                                                                          • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:87
                                                                                                                                                                          • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:88
                                                                                                                                                                            • Arel::Nodes::Casted#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:62
                                                                                                                                                                              • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:65
                                                                                                                                                                      • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:16
                                                                                                                                                                        • Arel::Nodes::Equality#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                                                                          • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                                                                              • Array#concat $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:34
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                                • Kernel#Array $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:160
                                                                                                                                                  • NilClass#to_a $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:160
                                                                                                                                                • Kernel#Array $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:160
                                                                                                                                                  • NilClass#to_a $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:160
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#unscope_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                                • ActsAsTaggableOn::Tagging.default_scoped $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/named.rb:32
                                                                                                                                                  • ActsAsTaggableOn::Tagging.relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:253
                                                                                                                                                    • ActsAsTaggableOn::Tagging.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                                                                    • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                                                                      • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                                                                        • ActsAsTaggableOn::Tagging.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                                                                          • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                                                                      • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                                                                    • ActsAsTaggableOn::Tagging.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                                                                                  • ActsAsTaggableOn::Tagging.relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:253
                                                                                                                                                    • ActsAsTaggableOn::Tagging.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                                                                    • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                                                                      • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                                                                        • ActsAsTaggableOn::Tagging.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                                                                          • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                                                                      • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                                                                    • ActsAsTaggableOn::Tagging.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                                                                                  • ActsAsTaggableOn::Tagging.build_default_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:97
                                                                                                                                                    • ActsAsTaggableOn::Tagging.abstract_class? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:130
                                                                                                                                                    • Kernel#method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:99
                                                                                                                                                    • Method#owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:99
                                                                                                                                                    • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:99
                                                                                                                                                    • ActsAsTaggableOn::Tagging.default_scopes -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                      • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                    • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:102
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:30
                                                                                                                                                    • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:31
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:30
                                                                                                                                                  • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:31
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                                                                    • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                                                      • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                                                                          • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                                                                          • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#merge! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:40
                                                                                                                                                    • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:41
                                                                                                                                                    • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:43
                                                                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:44
                                                                                                                                                      • ActiveRecord::Relation::Merger#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:46
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:625
                                                                                                                                                          • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:626
                                                                                                                                                    • ActiveRecord::Relation::Merger#merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:61
                                                                                                                                                      • ActiveRecord::Relation::Merger#normal_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:57
                                                                                                                                                      • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                                          • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                                          • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                                          • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                                          • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                                          • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                                          • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                                          • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                                          • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#_select! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:258
                                                                                                                                                            • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:259
                                                                                                                                                            • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:260
                                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in _select! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:260
                                                                                                                                                                • ActsAsTaggableOn::Tagging.attribute_alias? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:218
                                                                                                                                                                  • ActsAsTaggableOn::Tagging.attribute_aliases -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                    • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                  • Struct#inspect $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                                    • Kernel#inspect $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                                      • String#inspect $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                                      • ActsAsTaggableOn::Tagging.inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:212
                                                                                                                                                                        • ActsAsTaggableOn::Tagging.abstract_class? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:130
                                                                                                                                                                        • ActsAsTaggableOn::Tagging.connected? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:117
                                                                                                                                                                          • ActsAsTaggableOn::Tagging.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                                                                                                                                            • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                                                                              • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                                                                • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                                • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                            • ActsAsTaggableOn::Tagging.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                              • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                          • ActiveRecord::ConnectionAdapters::ConnectionHandler#connected? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:578
                                                                                                                                                                            • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                                                                                                                                              • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                                                                                                                                                • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                                                                                                                                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                                              • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                                                                                                                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                                            • ActiveRecord::ConnectionAdapters::ConnectionPool#connected? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:298
                                                                                                                                                                              • ActiveRecord::ConnectionAdapters::ConnectionPool#mon_synchronize /usr/local/lib/ruby/2.5.0/monitor.rb:223
                                                                                                                                                                                • ActiveRecord::ConnectionAdapters::ConnectionPool#mon_enter /usr/local/lib/ruby/2.5.0/monitor.rb:183
                                                                                                                                                                                  • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:184
                                                                                                                                                                                  • Thread::Mutex#lock /usr/local/lib/ruby/2.5.0/monitor.rb:185
                                                                                                                                                                                  • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:186
                                                                                                                                                                                • ActiveRecord::ConnectionAdapters::ConnectionPool#block in connected? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:299
                                                                                                                                                                                  • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:299
                                                                                                                                                                                • ActiveRecord::ConnectionAdapters::ConnectionPool#mon_exit /usr/local/lib/ruby/2.5.0/monitor.rb:195
                                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::ConnectionPool#mon_check_owner /usr/local/lib/ruby/2.5.0/monitor.rb:259
                                                                                                                                                                                    • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:260
                                                                                                                                                                                  • Thread::Mutex#unlock /usr/local/lib/ruby/2.5.0/monitor.rb:200
                                                                                                                                                                        • ActsAsTaggableOn::Tagging.table_exists? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:229
                                                                                                                                                                          • ActsAsTaggableOn::Tagging.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                                                                                                                                                            • ActsAsTaggableOn::Tagging.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                                                                                                                                                              • ActsAsTaggableOn::Tagging.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                                                                                                                                                • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                                                                                  • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                                                                    • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                                    • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                                • ActsAsTaggableOn::Tagging.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                                  • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                              • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                                                                                                                                                                • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                                                                                                                                                    • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                                                                                                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                                                  • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                                                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                                                • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                                                                                                                                                                    • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                                                                                                                                                                      • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                                                                                        • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                                          • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                                          • ActsAsTaggableOn::Tagging.table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:125
                                                                                                                                                                          • ActiveRecord::ConnectionAdapters::SchemaCache#table_exists? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:21
                                                                                                                                                                            • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:23
                                                                                                                                                                        • ActsAsTaggableOn::Tagging.columns $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attributes.rb:92
                                                                                                                                                                        • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                                                          • ActsAsTaggableOn::Tagging.block in inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                                                            • ActiveRecord::ConnectionAdapters::Column#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/column.rb:18
                                                                                                                                                                              • ActiveRecord::Type::Integer#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:11
                                                                                                                                                                            • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                                                          • ActsAsTaggableOn::Tagging.block in inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                                                            • ActiveRecord::ConnectionAdapters::Column#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/column.rb:18
                                                                                                                                                                              • ActiveRecord::Type::Integer#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:11
                                                                                                                                                                            • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                                                          • ActsAsTaggableOn::Tagging.block in inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                                                            • ActiveRecord::ConnectionAdapters::Column#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/column.rb:18
                                                                                                                                                                              • ActiveRecord::Type::Integer#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:11
                                                                                                                                                                            • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                                                          • ActsAsTaggableOn::Tagging.block in inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                                                            • ActiveRecord::ConnectionAdapters::Column#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/column.rb:18
                                                                                                                                                                              • ActiveRecord::Type::String#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:4
                                                                                                                                                                            • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                                                          • ActsAsTaggableOn::Tagging.block in inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                                                            • ActiveRecord::ConnectionAdapters::Column#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/column.rb:18
                                                                                                                                                                              • ActiveRecord::Type::Integer#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:11
                                                                                                                                                                            • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                                                          • ActsAsTaggableOn::Tagging.block in inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                                                            • ActiveRecord::ConnectionAdapters::Column#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/column.rb:18
                                                                                                                                                                              • ActiveRecord::Type::String#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:4
                                                                                                                                                                            • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                                                          • ActsAsTaggableOn::Tagging.block in inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                                                            • ActiveRecord::ConnectionAdapters::Column#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/column.rb:18
                                                                                                                                                                              • ActiveRecord::Type::String#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:4
                                                                                                                                                                            • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                                                          • ActsAsTaggableOn::Tagging.block in inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                                                            • ActiveRecord::ConnectionAdapters::Column#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/column.rb:18
                                                                                                                                                                              • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#type -> block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                                                                                                                • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#block in delegating_block /usr/local/lib/ruby/2.5.0/delegate.rb:347
                                                                                                                                                                                  • ActiveRecord::AttributeMethods::TimeZoneConversion::TimeZoneConverter#__getobj__ /usr/local/lib/ruby/2.5.0/delegate.rb:392
                                                                                                                                                                                  • ActiveRecord::Type::DateTime#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/date_time.rb:6
                                                                                                                                                                            • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                                                        • Array#* $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:220
                                                                                                                                                                        • Module#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:221
                                                                                                                                                                      • NilClass#inspect $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                                      • Array#inspect $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                                      • NilClass#inspect $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                                      • NilClass#inspect $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                                    • String#inspect $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                                  • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#select_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#select_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                                          • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                                          • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                                          • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                                          • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                                          • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:72
                                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#references! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:202
                                                                                                                                                            • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:203
                                                                                                                                                            • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:204
                                                                                                                                                              • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:204
                                                                                                                                                              • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:204
                                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#references_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                            • Array#| $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:206
                                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#references_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                                          • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                                          • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                                          • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                                      • ActiveRecord::Relation::Merger#merge_multi_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:132
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                        • ActiveRecord::Relation::Merger#partition_overwrites $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:177
                                                                                                                                                        • ActiveRecord::Relation::Merger#filter_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:167
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#reordering_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:322
                                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#preprocess_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1119
                                                                                                                                                            • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1120
                                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#validate_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1109
                                                                                                                                                              • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1110
                                                                                                                                                            • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                                                              • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                                                            • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                                                            • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                                                            • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1125
                                                                                                                                                            • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1128
                                                                                                                                                            • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1141
                                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#extending_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                        • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:155
                                                                                                                                                      • ActiveRecord::Relation::Merger#merge_single_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:158
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#from_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#lock_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#create_with_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:105
                                                                                                                                                        • Hash#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:162
                                                                                                                                                      • ActiveRecord::Relation::Merger#merge_preloads $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:87
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#preload_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#preload_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:149
                                                                                                                                                          • Array#reject! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:150
                                                                                                                                                            • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:150
                                                                                                                                                          • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:151
                                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                          • Array#| $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:153
                                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                                      • ActiveRecord::Relation::Merger#merge_joins $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:108
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                        • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:109
                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:625
                                                                                                                                                • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:626
                                                                                                                                              • ActiveRecord::Associations::Preloader::HasMany#reflection_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:127
                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:625
                                                                                                                                                • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:626
                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:317
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_if_method_has_arguments! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1160
                                                                                                                                                  • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1161
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                                                                  • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                                                    • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                                                                        • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                                                                        • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                                        • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                                          • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                                            • Array#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:322
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#preprocess_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1119
                                                                                                                                                    • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1120
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#validate_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1109
                                                                                                                                                      • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1110
                                                                                                                                                    • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                                                      • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                                                    • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                                                    • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                                                    • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1125
                                                                                                                                                    • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1128
                                                                                                                                                    • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1141
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                          • ActiveRecord::Associations::Preloader::HasMany#association_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:50
                                                                                                                                            • ActiveRecord::Associations::Preloader::HasMany#table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:39
                                                                                                                                              • ActsAsTaggableOn::Tagging.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                                                            • ActiveRecord::Associations::Preloader::HasMany#association_key_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/has_many.rb:6
                                                                                                                                              • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:329
                                                                                                                                            • Arel::Table#[] $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:99
                                                                                                                                              • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                                                                • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                                                          • Arel::Attributes::Attribute#in $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:47
                                                                                                                                            • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:49
                                                                                                                                            • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:51
                                                                                                                                            • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:58
                                                                                                                                            • Arel::Attributes::Attribute#quoted_array $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:211
                                                                                                                                              • Array#map $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:212
                                                                                                                                                • Arel::Attributes::Attribute#block in quoted_array $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:212
                                                                                                                                                  • Arel::Attributes::Attribute#quoted_node $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:207
                                                                                                                                                    • Arel::Nodes.build_quoted $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:81
                                                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:87
                                                                                                                                                      • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:88
                                                                                                                                                        • Arel::Nodes::Casted#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:62
                                                                                                                                                          • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:65
                                                                                                                                                • Arel::Attributes::Attribute#block in quoted_array $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:212
                                                                                                                                                  • Arel::Attributes::Attribute#quoted_node $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:207
                                                                                                                                                    • Arel::Nodes.build_quoted $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:81
                                                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:87
                                                                                                                                                      • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:88
                                                                                                                                                        • Arel::Nodes::Casted#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:62
                                                                                                                                                          • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:65
                                                                                                                                            • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:59
                                                                                                                                              • Arel::Nodes::In#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                                                • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:568
                                                                                                                                            • Arel::Nodes::In#eql? $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:22
                                                                                                                                              • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                                                                                              • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                                                                                            • Arel::Nodes::In#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:16
                                                                                                                                              • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:17
                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                                                              • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                                                • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                                                                    • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                                                                    • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                                    • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                                      • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                                        • Array#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:578
                                                                                                                                              • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:579
                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#build_where $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:947
                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:949
                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:949
                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:951
                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:116
                                                                                                                                      • Kernel#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:117
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#to_ary $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:46
                                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#to_a $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:242
                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#load $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:514
                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#exec_queries $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:638
                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#eager_loading? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:584
                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#eager_load_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                              • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:586
                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                              • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:587
                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#joined_includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:594
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                • Array#& $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:595
                                                                                                                                              • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:587
                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#references_eager_loaded_tables? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:658
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#arel $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:857
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#build_arel $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:863
                                                                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:864
                                                                                                                                                      • Arel::SelectManager#initialize $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:9
                                                                                                                                                        • Arel::SelectManager#initialize $GemPath0/gems/arel-6.0.4/lib/arel/tree_manager.rb:11
                                                                                                                                                        • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:11
                                                                                                                                                          • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_statement.rb:7
                                                                                                                                                            • Arel::Nodes::SelectCore#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_core.rb:7
                                                                                                                                                              • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_core.rb:8
                                                                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_core.rb:9
                                                                                                                                                                • Arel::Nodes::JoinSource#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/join_source.rb:9
                                                                                                                                                                  • Arel::Nodes::JoinSource#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                                                                    • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                                                                          • Arel::Nodes::SelectStatement#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_statement.rb:7
                                                                                                                                                            • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_statement.rb:8
                                                                                                                                                        • Array#last $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:12
                                                                                                                                                        • Arel::SelectManager#from $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:87
                                                                                                                                                          • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:88
                                                                                                                                                          • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:91
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                    • Array#- $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:868
                                                                                                                                                      • Arel::Nodes::Equality#eql? $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:22
                                                                                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                                                                                                      • Arel::Nodes::Equality#eql? $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:22
                                                                                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                                                                                                      • Arel::Nodes::In#eql? $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:22
                                                                                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#collapse_wheres $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:937
                                                                                                                                                      • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:938
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in collapse_wheres $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:938
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:939
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in collapse_wheres $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:938
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:939
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in collapse_wheres $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:938
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:939
                                                                                                                                                      • Array#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                                                                                                                        • Array#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:24
                                                                                                                                                      • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:944
                                                                                                                                                        • Arel::Nodes::And#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/and.rb:6
                                                                                                                                                          • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/and.rb:7
                                                                                                                                                      • Arel::SelectManager#where $GemPath0/gems/arel-6.0.4/lib/arel/tree_manager.rb:38
                                                                                                                                                        • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/tree_manager.rb:39
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#having_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#limit_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#offset_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#group_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#build_order $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1099
                                                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                      • Array#uniq $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1100
                                                                                                                                                      • Array#reject! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1101
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#build_select $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1057
                                                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#select_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                      • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1058
                                                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#select_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                      • Array#uniq $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1059
                                                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#arel_columns $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1065
                                                                                                                                                        • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1066
                                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in arel_columns $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1066
                                                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1067
                                                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1067
                                                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1069
                                                                                                                                                      • Arel::SelectManager#project $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:132
                                                                                                                                                        • Array#map $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:135
                                                                                                                                                          • Arel::SelectManager#block in project $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:135
                                                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                                                                                                            • Array#include? $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                                                                                                        • Array#concat $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:135
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#distinct_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                                                    • Arel::SelectManager#distinct $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:149
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                                                • Arel::SelectManager#join_sources $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:229
                                                                                                                                                • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:659
                                                                                                                                                • Array#flatten $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:670
                                                                                                                                                • Array#compact $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:670
                                                                                                                                                • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:670
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in references_eager_loaded_tables? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:670
                                                                                                                                                    • String#downcase $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:670
                                                                                                                                                • Array#uniq $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:670
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#references_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                • Array#- $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:672
                                                                                                                                                • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:672
                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#find_with_associations $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/finder_methods.rb:333
                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#construct_join_dependency $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/finder_methods.rb:362
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#eager_load_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/finder_methods.rb:364
                                                                                                                                                  • ActiveRecord::Associations::JoinDependency#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:95
                                                                                                                                                    • ActsAsTaggableOn::Tagging.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                                                                                                                                      • ActsAsTaggableOn::Tagging.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                                                                                                                                        • ActsAsTaggableOn::Tagging.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                                                                                                                          • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                                                            • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                                              • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                              • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                          • ActsAsTaggableOn::Tagging.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                            • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                        • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                                                                                                                                          • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                                                                                                                            • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                                                                                                                              • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                                                                                                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                            • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                                                                                                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                          • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                                                                                                                                            • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                                                                                                                                              • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                                                                                                                                                • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                                                                  • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                                                    • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                    • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                    • ActiveRecord::Associations::AliasTracker.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:14
                                                                                                                                                      • ActiveRecord::Associations::AliasTracker.empty $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:10
                                                                                                                                                        • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:11
                                                                                                                                                          • Hash#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:11
                                                                                                                                                        • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:11
                                                                                                                                                          • ActiveRecord::Associations::AliasTracker#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:54
                                                                                                                                                    • ActsAsTaggableOn::Tagging.table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:125
                                                                                                                                                    • ActsAsTaggableOn::Tagging.table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:125
                                                                                                                                                    • ActiveRecord::Associations::AliasTracker#aliased_table_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:59
                                                                                                                                                      • Numeric#zero? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:60
                                                                                                                                                      • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:63
                                                                                                                                                        • Arel::Table#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:14
                                                                                                                                                          • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:15
                                                                                                                                                          • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:22
                                                                                                                                                    • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:98
                                                                                                                                                    • ActiveRecord::Associations::JoinDependency.make_tree $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:50
                                                                                                                                                      • ActiveRecord::Associations::JoinDependency.walk_tree $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:56
                                                                                                                                                        • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:58
                                                                                                                                                        • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:58
                                                                                                                                                        • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:60
                                                                                                                                                        • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:61
                                                                                                                                                          • ActiveRecord::Associations::JoinDependency.block in walk_tree $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:61
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency.walk_tree $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:56
                                                                                                                                                              • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:58
                                                                                                                                                              • Symbol#to_sym $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:59
                                                                                                                                                    • ActiveRecord::Associations::JoinDependency#build $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:222
                                                                                                                                                      • Enumerable#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:223
                                                                                                                                                        • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:223
                                                                                                                                                          • ActiveRecord::Associations::JoinDependency#block in build $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:223
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency#find_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:217
                                                                                                                                                              • ActsAsTaggableOn::Tagging._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                                                                                • ActsAsTaggableOn::Tagging._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                  • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                                                                                            • ActiveRecord::Reflection::BelongsToReflection#check_validity! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:354
                                                                                                                                                              • ActiveRecord::Reflection::BelongsToReflection#check_validity_of_inverse! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:181
                                                                                                                                                                • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:470
                                                                                                                                                                • ActiveRecord::Reflection::BelongsToReflection#has_inverse? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:402
                                                                                                                                                                  • ActiveRecord::Reflection::BelongsToReflection#inverse_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:499
                                                                                                                                                                    • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:500
                                                                                                                                                                      • ActiveRecord::Reflection::BelongsToReflection#block in inverse_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:500
                                                                                                                                                            • ActiveRecord::Reflection::BelongsToReflection#check_preloadable! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:358
                                                                                                                                                            • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:470
                                                                                                                                                            • ActiveRecord::Reflection::BelongsToReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency#build $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:222
                                                                                                                                                              • Enumerable#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:223
                                                                                                                                                                • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:223
                                                                                                                                                            • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:232
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::JoinAssociation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_association.rb:12
                                                                                                                                                                • ActiveRecord::Reflection::BelongsToReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                                                                                • ActiveRecord::Associations::JoinDependency::JoinAssociation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_part.rb:20
                                                                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:99
                                                                                                                                                      • ActiveRecord::Associations::JoinDependency::JoinBase#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_part.rb:20
                                                                                                                                                    • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:100
                                                                                                                                                      • ActiveRecord::Associations::JoinDependency#block in initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:100
                                                                                                                                                        • ActiveRecord::Associations::JoinDependency#construct_tables! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:197
                                                                                                                                                          • ActiveRecord::Associations::JoinDependency#table_aliases_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:188
                                                                                                                                                            • ActiveRecord::Reflection::BelongsToReflection#chain $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:388
                                                                                                                                                            • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:189
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency#block in table_aliases_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:189
                                                                                                                                                                • ActiveRecord::Reflection::BelongsToReflection#table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:134
                                                                                                                                                                  • ActiveRecord::Reflection::BelongsToReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                                                                                  • ActsAsTaggableOn::Tag.table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:125
                                                                                                                                                                • BasicObject#!= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:192
                                                                                                                                                                  • ActiveRecord::Reflection::BelongsToReflection#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:251
                                                                                                                                                                    • BasicObject#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:252
                                                                                                                                                                • ActiveRecord::Associations::JoinDependency#table_alias_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:202
                                                                                                                                                                  • ActiveRecord::Associations::JoinDependency::JoinBase#table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_part.rb:18
                                                                                                                                                                    • ActsAsTaggableOn::Tagging.table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:125
                                                                                                                                                                • ActiveRecord::Associations::AliasTracker#aliased_table_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:59
                                                                                                                                                                  • Numeric#zero? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:60
                                                                                                                                                                  • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:63
                                                                                                                                                                    • Arel::Table#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:14
                                                                                                                                                                      • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:15
                                                                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:22
                                                                                                                                                          • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:199
                                                                                                                                              • ActiveRecord::Associations::JoinDependency#aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:123
                                                                                                                                                • Enumerable#each_with_index $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:124
                                                                                                                                                • Enumerable#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:124
                                                                                                                                                  • Enumerator#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:124
                                                                                                                                                    • Enumerable#each_with_index $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:124
                                                                                                                                                      • ActiveRecord::Associations::JoinDependency::JoinBase#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_part.rb:33
                                                                                                                                                        • ActiveRecord::Associations::JoinDependency#block in aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:124
                                                                                                                                                          • ActiveRecord::Associations::JoinDependency::JoinBase#column_names $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_part.rb:18
                                                                                                                                                            • ActsAsTaggableOn::Tagging.column_names $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:259
                                                                                                                                                          • Enumerable#each_with_index $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:125
                                                                                                                                                          • Enumerable#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:125
                                                                                                                                                            • Enumerator#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:125
                                                                                                                                                              • Enumerable#each_with_index $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:125
                                                                                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:125
                                                                                                                                                                  • ActiveRecord::Associations::JoinDependency#block (2 levels) in aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:125
                                                                                                                                                                    • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                      • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                                                                                        • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                                                                                                    • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                      • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                                                                                        • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                                                                                                    • #<Class:ActiveRecord::Associations::JoinDependency::Aliases::Column>#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:126
                                                                                                                                                                      • Struct#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:126
                                                                                                                                                                  • ActiveRecord::Associations::JoinDependency#block (2 levels) in aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:125
                                                                                                                                                                    • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                      • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                                                                                        • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                                                                                                    • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                      • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                                                                                        • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                                                                                                    • #<Class:ActiveRecord::Associations::JoinDependency::Aliases::Column>#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:126
                                                                                                                                                                      • Struct#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:126
                                                                                                                                                                  • ActiveRecord::Associations::JoinDependency#block (2 levels) in aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:125
                                                                                                                                                                    • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                      • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                                                                                        • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                                                                                                    • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                      • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                                                                                        • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                                                                                                    • #<Class:ActiveRecord::Associations::JoinDependency::Aliases::Column>#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:126
                                                                                                                                                                      • Struct#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:126
                                                                                                                                                                  • ActiveRecord::Associations::JoinDependency#block (2 levels) in aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:125
                                                                                                                                                                    • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                      • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                                                                                        • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                                                                                                    • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                      • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                                                                                        • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                                                                                                    • #<Class:ActiveRecord::Associations::JoinDependency::Aliases::Column>#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:126
                                                                                                                                                                      • Struct#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:126
                                                                                                                                                                  • ActiveRecord::Associations::JoinDependency#block (2 levels) in aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:125
                                                                                                                                                                    • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                      • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                                                                                        • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                                                                                                    • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                      • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                                                                                        • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                                                                                                    • #<Class:ActiveRecord::Associations::JoinDependency::Aliases::Column>#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:126
                                                                                                                                                                      • Struct#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:126
                                                                                                                                                                  • ActiveRecord::Associations::JoinDependency#block (2 levels) in aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:125
                                                                                                                                                                    • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                      • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                                                                                        • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                                                                                                    • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                      • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                                                                                        • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                                                                                                    • #<Class:ActiveRecord::Associations::JoinDependency::Aliases::Column>#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:126
                                                                                                                                                                      • Struct#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:126
                                                                                                                                                                  • ActiveRecord::Associations::JoinDependency#block (2 levels) in aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:125
                                                                                                                                                                    • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                      • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                                                                                        • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                                                                                                    • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                      • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                                                                                        • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                                                                                                    • #<Class:ActiveRecord::Associations::JoinDependency::Aliases::Column>#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:126
                                                                                                                                                                      • Struct#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:126
                                                                                                                                                                  • ActiveRecord::Associations::JoinDependency#block (2 levels) in aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:125
                                                                                                                                                                    • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                      • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                                                                                        • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                                                                                                    • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                      • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                                                                                        • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                                                                                                    • #<Class:ActiveRecord::Associations::JoinDependency::Aliases::Column>#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:126
                                                                                                                                                                      • Struct#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:126
                                                                                                                                                          • #<Class:#<Class:0x0000555930a62988>>#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:128
                                                                                                                                                            • Struct#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:128
                                                                                                                                                        • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_part.rb:35
                                                                                                                                                          • ActiveRecord::Associations::JoinDependency::JoinBase#block in each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_part.rb:35
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::JoinAssociation#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_part.rb:33
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency#block in aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:124
                                                                                                                                                                • ActiveRecord::Associations::JoinDependency::JoinAssociation#column_names $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_part.rb:18
                                                                                                                                                                  • ActsAsTaggableOn::Tag.column_names $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:259
                                                                                                                                                                • Enumerable#each_with_index $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:125
                                                                                                                                                                • Enumerable#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:125
                                                                                                                                                                  • Enumerator#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:125
                                                                                                                                                                    • Enumerable#each_with_index $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:125
                                                                                                                                                                      • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:125
                                                                                                                                                                        • ActiveRecord::Associations::JoinDependency#block (2 levels) in aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:125
                                                                                                                                                                          • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                            • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                                                                                              • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                                                                                                          • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                            • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                                                                                              • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                                                                                                          • #<Class:ActiveRecord::Associations::JoinDependency::Aliases::Column>#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:126
                                                                                                                                                                            • Struct#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:126
                                                                                                                                                                        • ActiveRecord::Associations::JoinDependency#block (2 levels) in aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:125
                                                                                                                                                                          • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                            • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                                                                                              • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                                                                                                          • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                            • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                                                                                              • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                                                                                                          • #<Class:ActiveRecord::Associations::JoinDependency::Aliases::Column>#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:126
                                                                                                                                                                            • Struct#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:126
                                                                                                                                                                        • ActiveRecord::Associations::JoinDependency#block (2 levels) in aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:125
                                                                                                                                                                          • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                            • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                                                                                              • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                                                                                                          • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                            • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                                                                                              • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                                                                                                          • #<Class:ActiveRecord::Associations::JoinDependency::Aliases::Column>#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:126
                                                                                                                                                                            • Struct#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:126
                                                                                                                                                                • #<Class:#<Class:0x0000555930a62988>>#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:128
                                                                                                                                                                  • Struct#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:128
                                                                                                                                                              • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_part.rb:35
                                                                                                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:124
                                                                                                                                                  • ActiveRecord::Associations::JoinDependency::Aliases#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:8
                                                                                                                                                    • Enumerable#each_with_object $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:10
                                                                                                                                                      • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:10
                                                                                                                                                        • ActiveRecord::Associations::JoinDependency::Aliases#block in initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:10
                                                                                                                                                          • #<Class:0x0000555930a62988>#node $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:11
                                                                                                                                                          • #<Class:0x0000555930a62988>#columns $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:11
                                                                                                                                                          • Enumerable#each_with_object $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:11
                                                                                                                                                            • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:11
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::Aliases#block (2 levels) in initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:11
                                                                                                                                                                • ActiveRecord::Associations::JoinDependency::Aliases::Column#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:12
                                                                                                                                                                • ActiveRecord::Associations::JoinDependency::Aliases::Column#alias $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:12
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::Aliases#block (2 levels) in initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:11
                                                                                                                                                                • ActiveRecord::Associations::JoinDependency::Aliases::Column#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:12
                                                                                                                                                                • ActiveRecord::Associations::JoinDependency::Aliases::Column#alias $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:12
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::Aliases#block (2 levels) in initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:11
                                                                                                                                                                • ActiveRecord::Associations::JoinDependency::Aliases::Column#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:12
                                                                                                                                                                • ActiveRecord::Associations::JoinDependency::Aliases::Column#alias $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:12
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::Aliases#block (2 levels) in initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:11
                                                                                                                                                                • ActiveRecord::Associations::JoinDependency::Aliases::Column#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:12
                                                                                                                                                                • ActiveRecord::Associations::JoinDependency::Aliases::Column#alias $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:12
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::Aliases#block (2 levels) in initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:11
                                                                                                                                                                • ActiveRecord::Associations::JoinDependency::Aliases::Column#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:12
                                                                                                                                                                • ActiveRecord::Associations::JoinDependency::Aliases::Column#alias $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:12
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::Aliases#block (2 levels) in initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:11
                                                                                                                                                                • ActiveRecord::Associations::JoinDependency::Aliases::Column#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:12
                                                                                                                                                                • ActiveRecord::Associations::JoinDependency::Aliases::Column#alias $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:12
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::Aliases#block (2 levels) in initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:11
                                                                                                                                                                • ActiveRecord::Associations::JoinDependency::Aliases::Column#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:12
                                                                                                                                                                • ActiveRecord::Associations::JoinDependency::Aliases::Column#alias $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:12
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::Aliases#block (2 levels) in initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:11
                                                                                                                                                                • ActiveRecord::Associations::JoinDependency::Aliases::Column#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:12
                                                                                                                                                                • ActiveRecord::Associations::JoinDependency::Aliases::Column#alias $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:12
                                                                                                                                                          • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:11
                                                                                                                                                        • ActiveRecord::Associations::JoinDependency::Aliases#block in initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:10
                                                                                                                                                          • #<Class:0x0000555930a62988>#node $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:11
                                                                                                                                                          • #<Class:0x0000555930a62988>#columns $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:11
                                                                                                                                                          • Enumerable#each_with_object $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:11
                                                                                                                                                            • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:11
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::Aliases#block (2 levels) in initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:11
                                                                                                                                                                • ActiveRecord::Associations::JoinDependency::Aliases::Column#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:12
                                                                                                                                                                • ActiveRecord::Associations::JoinDependency::Aliases::Column#alias $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:12
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::Aliases#block (2 levels) in initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:11
                                                                                                                                                                • ActiveRecord::Associations::JoinDependency::Aliases::Column#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:12
                                                                                                                                                                • ActiveRecord::Associations::JoinDependency::Aliases::Column#alias $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:12
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::Aliases#block (2 levels) in initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:11
                                                                                                                                                                • ActiveRecord::Associations::JoinDependency::Aliases::Column#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:12
                                                                                                                                                                • ActiveRecord::Associations::JoinDependency::Aliases::Column#alias $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:12
                                                                                                                                                          • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:11
                                                                                                                                                    • Enumerable#each_with_object $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:15
                                                                                                                                                      • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:15
                                                                                                                                                        • ActiveRecord::Associations::JoinDependency::Aliases#block in initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:15
                                                                                                                                                          • #<Class:0x0000555930a62988>#node $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:16
                                                                                                                                                          • #<Class:0x0000555930a62988>#columns $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:16
                                                                                                                                                          • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:16
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::Aliases#block (2 levels) in initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:16
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::Aliases::Column#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:17
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::Aliases::Column#alias $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:17
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::Aliases#block (2 levels) in initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:16
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::Aliases::Column#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:17
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::Aliases::Column#alias $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:17
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::Aliases#block (2 levels) in initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:16
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::Aliases::Column#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:17
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::Aliases::Column#alias $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:17
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::Aliases#block (2 levels) in initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:16
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::Aliases::Column#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:17
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::Aliases::Column#alias $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:17
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::Aliases#block (2 levels) in initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:16
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::Aliases::Column#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:17
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::Aliases::Column#alias $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:17
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::Aliases#block (2 levels) in initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:16
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::Aliases::Column#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:17
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::Aliases::Column#alias $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:17
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::Aliases#block (2 levels) in initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:16
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::Aliases::Column#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:17
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::Aliases::Column#alias $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:17
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::Aliases#block (2 levels) in initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:16
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::Aliases::Column#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:17
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::Aliases::Column#alias $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:17
                                                                                                                                                          • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:16
                                                                                                                                                        • ActiveRecord::Associations::JoinDependency::Aliases#block in initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:15
                                                                                                                                                          • #<Class:0x0000555930a62988>#node $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:16
                                                                                                                                                          • #<Class:0x0000555930a62988>#columns $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:16
                                                                                                                                                          • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:16
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::Aliases#block (2 levels) in initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:16
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::Aliases::Column#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:17
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::Aliases::Column#alias $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:17
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::Aliases#block (2 levels) in initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:16
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::Aliases::Column#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:17
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::Aliases::Column#alias $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:17
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::Aliases#block (2 levels) in initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:16
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::Aliases::Column#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:17
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::Aliases::Column#alias $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:17
                                                                                                                                                          • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:16
                                                                                                                                              • ActiveRecord::Associations::JoinDependency::Aliases#columns $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:22
                                                                                                                                                • Enumerable#flat_map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:23
                                                                                                                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:23
                                                                                                                                                    • ActiveRecord::Associations::JoinDependency::Aliases#block in columns $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:23
                                                                                                                                                      • ActiveRecord::Associations::JoinDependency::Aliases::Table#column_aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:40
                                                                                                                                                        • ActiveRecord::Associations::JoinDependency::Aliases::Table#table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:36
                                                                                                                                                          • #<Class:0x0000555930a62988>#node $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:37
                                                                                                                                                          • ActiveRecord::Associations::JoinDependency::JoinBase#table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_base.rb:12
                                                                                                                                                            • ActsAsTaggableOn::Tagging.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                                                                          • #<Class:0x0000555930a62988>#node $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:37
                                                                                                                                                          • ActiveRecord::Associations::JoinDependency::JoinBase#aliased_table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_base.rb:16
                                                                                                                                                            • ActsAsTaggableOn::Tagging.table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:125
                                                                                                                                                          • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:37
                                                                                                                                                            • Arel::Nodes::TableAlias#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                                                              • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                                                                        • #<Class:0x0000555930a62988>#columns $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:42
                                                                                                                                                        • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:42
                                                                                                                                                          • ActiveRecord::Associations::JoinDependency::Aliases::Table#block in column_aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:42
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::Aliases::Column#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:42
                                                                                                                                                            • Arel::Nodes::TableAlias#[] $GemPath0/gems/arel-6.0.4/lib/arel/nodes/table_alias.rb:8
                                                                                                                                                              • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes/table_alias.rb:9
                                                                                                                                                                • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/table_alias.rb:9
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::Aliases::Column#alias $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:42
                                                                                                                                                            • Arel.sql $GemPath0/gems/arel-6.0.4/lib/arel.rb:26
                                                                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel.rb:27
                                                                                                                                                                • String#initialize $GemPath0/gems/arel-6.0.4/lib/arel.rb:27
                                                                                                                                                            • Arel::Attributes::Attribute#as $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:3
                                                                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:4
                                                                                                                                                                • String#initialize $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:4
                                                                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:4
                                                                                                                                                                • Arel::Nodes::As#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                                                                  • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                                                                          • ActiveRecord::Associations::JoinDependency::Aliases::Table#block in column_aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:42
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::Aliases::Column#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:42
                                                                                                                                                            • Arel::Nodes::TableAlias#[] $GemPath0/gems/arel-6.0.4/lib/arel/nodes/table_alias.rb:8
                                                                                                                                                              • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes/table_alias.rb:9
                                                                                                                                                                • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/table_alias.rb:9
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::Aliases::Column#alias $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:42
                                                                                                                                                            • Arel.sql $GemPath0/gems/arel-6.0.4/lib/arel.rb:26
                                                                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel.rb:27
                                                                                                                                                                • String#initialize $GemPath0/gems/arel-6.0.4/lib/arel.rb:27
                                                                                                                                                            • Arel::Attributes::Attribute#as $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:3
                                                                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:4
                                                                                                                                                                • String#initialize $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:4
                                                                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:4
                                                                                                                                                                • Arel::Nodes::As#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                                                                  • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                                                                          • ActiveRecord::Associations::JoinDependency::Aliases::Table#block in column_aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:42
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::Aliases::Column#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:42
                                                                                                                                                            • Arel::Nodes::TableAlias#[] $GemPath0/gems/arel-6.0.4/lib/arel/nodes/table_alias.rb:8
                                                                                                                                                              • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes/table_alias.rb:9
                                                                                                                                                                • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/table_alias.rb:9
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::Aliases::Column#alias $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:42
                                                                                                                                                            • Arel.sql $GemPath0/gems/arel-6.0.4/lib/arel.rb:26
                                                                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel.rb:27
                                                                                                                                                                • String#initialize $GemPath0/gems/arel-6.0.4/lib/arel.rb:27
                                                                                                                                                            • Arel::Attributes::Attribute#as $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:3
                                                                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:4
                                                                                                                                                                • String#initialize $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:4
                                                                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:4
                                                                                                                                                                • Arel::Nodes::As#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                                                                  • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                                                                          • ActiveRecord::Associations::JoinDependency::Aliases::Table#block in column_aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:42
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::Aliases::Column#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:42
                                                                                                                                                            • Arel::Nodes::TableAlias#[] $GemPath0/gems/arel-6.0.4/lib/arel/nodes/table_alias.rb:8
                                                                                                                                                              • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes/table_alias.rb:9
                                                                                                                                                                • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/table_alias.rb:9
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::Aliases::Column#alias $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:42
                                                                                                                                                            • Arel.sql $GemPath0/gems/arel-6.0.4/lib/arel.rb:26
                                                                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel.rb:27
                                                                                                                                                                • String#initialize $GemPath0/gems/arel-6.0.4/lib/arel.rb:27
                                                                                                                                                            • Arel::Attributes::Attribute#as $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:3
                                                                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:4
                                                                                                                                                                • String#initialize $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:4
                                                                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:4
                                                                                                                                                                • Arel::Nodes::As#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                                                                  • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                                                                          • ActiveRecord::Associations::JoinDependency::Aliases::Table#block in column_aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:42
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::Aliases::Column#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:42
                                                                                                                                                            • Arel::Nodes::TableAlias#[] $GemPath0/gems/arel-6.0.4/lib/arel/nodes/table_alias.rb:8
                                                                                                                                                              • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes/table_alias.rb:9
                                                                                                                                                                • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/table_alias.rb:9
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::Aliases::Column#alias $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:42
                                                                                                                                                            • Arel.sql $GemPath0/gems/arel-6.0.4/lib/arel.rb:26
                                                                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel.rb:27
                                                                                                                                                                • String#initialize $GemPath0/gems/arel-6.0.4/lib/arel.rb:27
                                                                                                                                                            • Arel::Attributes::Attribute#as $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:3
                                                                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:4
                                                                                                                                                                • String#initialize $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:4
                                                                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:4
                                                                                                                                                                • Arel::Nodes::As#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                                                                  • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                                                                          • ActiveRecord::Associations::JoinDependency::Aliases::Table#block in column_aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:42
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::Aliases::Column#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:42
                                                                                                                                                            • Arel::Nodes::TableAlias#[] $GemPath0/gems/arel-6.0.4/lib/arel/nodes/table_alias.rb:8
                                                                                                                                                              • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes/table_alias.rb:9
                                                                                                                                                                • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/table_alias.rb:9
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::Aliases::Column#alias $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:42
                                                                                                                                                            • Arel.sql $GemPath0/gems/arel-6.0.4/lib/arel.rb:26
                                                                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel.rb:27
                                                                                                                                                                • String#initialize $GemPath0/gems/arel-6.0.4/lib/arel.rb:27
                                                                                                                                                            • Arel::Attributes::Attribute#as $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:3
                                                                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:4
                                                                                                                                                                • String#initialize $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:4
                                                                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:4
                                                                                                                                                                • Arel::Nodes::As#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                                                                  • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                                                                          • ActiveRecord::Associations::JoinDependency::Aliases::Table#block in column_aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:42
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::Aliases::Column#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:42
                                                                                                                                                            • Arel::Nodes::TableAlias#[] $GemPath0/gems/arel-6.0.4/lib/arel/nodes/table_alias.rb:8
                                                                                                                                                              • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes/table_alias.rb:9
                                                                                                                                                                • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/table_alias.rb:9
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::Aliases::Column#alias $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:42
                                                                                                                                                            • Arel.sql $GemPath0/gems/arel-6.0.4/lib/arel.rb:26
                                                                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel.rb:27
                                                                                                                                                                • String#initialize $GemPath0/gems/arel-6.0.4/lib/arel.rb:27
                                                                                                                                                            • Arel::Attributes::Attribute#as $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:3
                                                                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:4
                                                                                                                                                                • String#initialize $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:4
                                                                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:4
                                                                                                                                                                • Arel::Nodes::As#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                                                                  • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                                                                          • ActiveRecord::Associations::JoinDependency::Aliases::Table#block in column_aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:42
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::Aliases::Column#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:42
                                                                                                                                                            • Arel::Nodes::TableAlias#[] $GemPath0/gems/arel-6.0.4/lib/arel/nodes/table_alias.rb:8
                                                                                                                                                              • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes/table_alias.rb:9
                                                                                                                                                                • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/table_alias.rb:9
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::Aliases::Column#alias $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:42
                                                                                                                                                            • Arel.sql $GemPath0/gems/arel-6.0.4/lib/arel.rb:26
                                                                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel.rb:27
                                                                                                                                                                • String#initialize $GemPath0/gems/arel-6.0.4/lib/arel.rb:27
                                                                                                                                                            • Arel::Attributes::Attribute#as $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:3
                                                                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:4
                                                                                                                                                                • String#initialize $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:4
                                                                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:4
                                                                                                                                                                • Arel::Nodes::As#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                                                                  • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                                                                    • ActiveRecord::Associations::JoinDependency::Aliases#block in columns $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:23
                                                                                                                                                      • ActiveRecord::Associations::JoinDependency::Aliases::Table#column_aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:40
                                                                                                                                                        • ActiveRecord::Associations::JoinDependency::Aliases::Table#table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:36
                                                                                                                                                          • #<Class:0x0000555930a62988>#node $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:37
                                                                                                                                                          • ActiveRecord::Associations::JoinDependency::JoinAssociation#table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_association.rb:118
                                                                                                                                                            • Array#first $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_association.rb:119
                                                                                                                                                          • #<Class:0x0000555930a62988>#node $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:37
                                                                                                                                                          • ActiveRecord::Associations::JoinDependency::JoinAssociation#aliased_table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_association.rb:122
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::JoinAssociation#table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_association.rb:118
                                                                                                                                                              • Array#first $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_association.rb:119
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::JoinAssociation#table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_association.rb:118
                                                                                                                                                              • Array#first $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_association.rb:119
                                                                                                                                                          • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:37
                                                                                                                                                            • Arel::Nodes::TableAlias#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                                                              • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                                                                        • #<Class:0x0000555930a62988>#columns $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:42
                                                                                                                                                        • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:42
                                                                                                                                                          • ActiveRecord::Associations::JoinDependency::Aliases::Table#block in column_aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:42
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::Aliases::Column#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:42
                                                                                                                                                            • Arel::Nodes::TableAlias#[] $GemPath0/gems/arel-6.0.4/lib/arel/nodes/table_alias.rb:8
                                                                                                                                                              • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes/table_alias.rb:9
                                                                                                                                                                • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/table_alias.rb:9
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::Aliases::Column#alias $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:42
                                                                                                                                                            • Arel.sql $GemPath0/gems/arel-6.0.4/lib/arel.rb:26
                                                                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel.rb:27
                                                                                                                                                                • String#initialize $GemPath0/gems/arel-6.0.4/lib/arel.rb:27
                                                                                                                                                            • Arel::Attributes::Attribute#as $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:3
                                                                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:4
                                                                                                                                                                • String#initialize $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:4
                                                                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:4
                                                                                                                                                                • Arel::Nodes::As#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                                                                  • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                                                                          • ActiveRecord::Associations::JoinDependency::Aliases::Table#block in column_aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:42
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::Aliases::Column#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:42
                                                                                                                                                            • Arel::Nodes::TableAlias#[] $GemPath0/gems/arel-6.0.4/lib/arel/nodes/table_alias.rb:8
                                                                                                                                                              • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes/table_alias.rb:9
                                                                                                                                                                • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/table_alias.rb:9
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::Aliases::Column#alias $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:42
                                                                                                                                                            • Arel.sql $GemPath0/gems/arel-6.0.4/lib/arel.rb:26
                                                                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel.rb:27
                                                                                                                                                                • String#initialize $GemPath0/gems/arel-6.0.4/lib/arel.rb:27
                                                                                                                                                            • Arel::Attributes::Attribute#as $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:3
                                                                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:4
                                                                                                                                                                • String#initialize $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:4
                                                                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:4
                                                                                                                                                                • Arel::Nodes::As#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                                                                  • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                                                                          • ActiveRecord::Associations::JoinDependency::Aliases::Table#block in column_aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:42
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::Aliases::Column#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:42
                                                                                                                                                            • Arel::Nodes::TableAlias#[] $GemPath0/gems/arel-6.0.4/lib/arel/nodes/table_alias.rb:8
                                                                                                                                                              • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes/table_alias.rb:9
                                                                                                                                                                • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/table_alias.rb:9
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::Aliases::Column#alias $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:42
                                                                                                                                                            • Arel.sql $GemPath0/gems/arel-6.0.4/lib/arel.rb:26
                                                                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel.rb:27
                                                                                                                                                                • String#initialize $GemPath0/gems/arel-6.0.4/lib/arel.rb:27
                                                                                                                                                            • Arel::Attributes::Attribute#as $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:3
                                                                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:4
                                                                                                                                                                • String#initialize $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:4
                                                                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/alias_predication.rb:4
                                                                                                                                                                • Arel::Nodes::As#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                                                                  • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#select $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:249
                                                                                                                                                • Kernel#block_given? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:250
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                                                                  • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                                                    • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                                                                        • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                                                                        • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                                        • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                                          • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                                            • Array#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#_select! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:258
                                                                                                                                                  • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:259
                                                                                                                                                  • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:260
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in _select! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:260
                                                                                                                                                      • ActsAsTaggableOn::Tagging.attribute_alias? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:218
                                                                                                                                                        • ActsAsTaggableOn::Tagging.attribute_aliases -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                          • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                        • Kernel#to_s $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                        • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in _select! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:260
                                                                                                                                                      • ActsAsTaggableOn::Tagging.attribute_alias? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:218
                                                                                                                                                        • ActsAsTaggableOn::Tagging.attribute_aliases -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                          • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                        • Kernel#to_s $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                        • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in _select! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:260
                                                                                                                                                      • ActsAsTaggableOn::Tagging.attribute_alias? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:218
                                                                                                                                                        • ActsAsTaggableOn::Tagging.attribute_aliases -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                          • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                        • Kernel#to_s $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                        • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in _select! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:260
                                                                                                                                                      • ActsAsTaggableOn::Tagging.attribute_alias? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:218
                                                                                                                                                        • ActsAsTaggableOn::Tagging.attribute_aliases -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                          • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                        • Kernel#to_s $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                        • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in _select! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:260
                                                                                                                                                      • ActsAsTaggableOn::Tagging.attribute_alias? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:218
                                                                                                                                                        • ActsAsTaggableOn::Tagging.attribute_aliases -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                          • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                        • Kernel#to_s $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                        • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in _select! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:260
                                                                                                                                                      • ActsAsTaggableOn::Tagging.attribute_alias? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:218
                                                                                                                                                        • ActsAsTaggableOn::Tagging.attribute_aliases -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                          • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                        • Kernel#to_s $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                        • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in _select! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:260
                                                                                                                                                      • ActsAsTaggableOn::Tagging.attribute_alias? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:218
                                                                                                                                                        • ActsAsTaggableOn::Tagging.attribute_aliases -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                          • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                        • Kernel#to_s $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                        • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in _select! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:260
                                                                                                                                                      • ActsAsTaggableOn::Tagging.attribute_alias? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:218
                                                                                                                                                        • ActsAsTaggableOn::Tagging.attribute_aliases -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                          • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                        • Kernel#to_s $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                        • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in _select! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:260
                                                                                                                                                      • ActsAsTaggableOn::Tagging.attribute_alias? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:218
                                                                                                                                                        • ActsAsTaggableOn::Tagging.attribute_aliases -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                          • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                        • Kernel#to_s $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                        • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in _select! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:260
                                                                                                                                                      • ActsAsTaggableOn::Tagging.attribute_alias? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:218
                                                                                                                                                        • ActsAsTaggableOn::Tagging.attribute_aliases -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                          • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                        • Kernel#to_s $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                        • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in _select! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:260
                                                                                                                                                      • ActsAsTaggableOn::Tagging.attribute_alias? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:218
                                                                                                                                                        • ActsAsTaggableOn::Tagging.attribute_aliases -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                          • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                        • Kernel#to_s $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                        • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#select_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#select_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#apply_join_dependency $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/finder_methods.rb:379
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#except $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:56
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:625
                                                                                                                                                    • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:626
                                                                                                                                                  • Hash#except $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:9
                                                                                                                                                    • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:10
                                                                                                                                                      • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:10
                                                                                                                                                        • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:10
                                                                                                                                                    • Hash#except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:17
                                                                                                                                                      • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                                                                        • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                                                                          • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                                                                        • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                                                                          • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                                                                        • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                                                                          • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#relation_with $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:73
                                                                                                                                                    • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                                                                      • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                                                                        • ActsAsTaggableOn::Tagging.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                                                                          • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                                                                      • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#extending_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                    • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:75
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#joins $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:428
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_if_method_has_arguments! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1160
                                                                                                                                                    • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1161
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                                                                    • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                                                      • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                                                                          • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                                                                          • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                                          • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                                            • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                                              • Array#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#joins! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:433
                                                                                                                                                    • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:434
                                                                                                                                                    • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:435
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#joins_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                                • ActiveRecord::Associations::JoinDependency#reflections $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:103
                                                                                                                                                  • Enumerable#drop $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:104
                                                                                                                                                    • ActiveRecord::Associations::JoinDependency::JoinBase#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_part.rb:33
                                                                                                                                                      • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_part.rb:35
                                                                                                                                                        • ActiveRecord::Associations::JoinDependency::JoinBase#block in each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_part.rb:35
                                                                                                                                                          • ActiveRecord::Associations::JoinDependency::JoinAssociation#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_part.rb:33
                                                                                                                                                            • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_part.rb:35
                                                                                                                                                  • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:104
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#using_limitable_reflections? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/finder_methods.rb:405
                                                                                                                                                  • Enumerable#none? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/finder_methods.rb:406
                                                                                                                                                    • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/finder_methods.rb:406
                                                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in using_limitable_reflections? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/finder_methods.rb:406
                                                                                                                                                        • ActiveRecord::Reflection::BelongsToReflection#collection? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:424
                                                                                                                                              • Kernel#block_given? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/finder_methods.rb:349
                                                                                                                                              • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/finder_methods.rb:352
                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#arel $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:857
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#build_arel $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:863
                                                                                                                                                  • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:864
                                                                                                                                                    • Arel::SelectManager#initialize $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:9
                                                                                                                                                      • Arel::SelectManager#initialize $GemPath0/gems/arel-6.0.4/lib/arel/tree_manager.rb:11
                                                                                                                                                      • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:11
                                                                                                                                                        • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_statement.rb:7
                                                                                                                                                          • Arel::Nodes::SelectCore#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_core.rb:7
                                                                                                                                                            • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_core.rb:8
                                                                                                                                                            • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_core.rb:9
                                                                                                                                                              • Arel::Nodes::JoinSource#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/join_source.rb:9
                                                                                                                                                                • Arel::Nodes::JoinSource#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                                                                  • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                                                                        • Arel::Nodes::SelectStatement#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_statement.rb:7
                                                                                                                                                          • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_statement.rb:8
                                                                                                                                                      • Array#last $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:12
                                                                                                                                                      • Arel::SelectManager#from $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:87
                                                                                                                                                        • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:88
                                                                                                                                                        • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:91
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                  • Array#flatten $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:866
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#build_joins $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1016
                                                                                                                                                    • Enumerable#group_by $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1017
                                                                                                                                                      • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1017
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in build_joins $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1017
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1019
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1021
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1021
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1021
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1023
                                                                                                                                                    • Array#uniq $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1034
                                                                                                                                                    • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1035
                                                                                                                                                    • Array#uniq $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1035
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#custom_join_ast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:921
                                                                                                                                                      • Array#reject $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:922
                                                                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1039
                                                                                                                                                      • ActiveRecord::Associations::JoinDependency#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:95
                                                                                                                                                        • ActsAsTaggableOn::Tagging.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                                                                                                                                          • ActsAsTaggableOn::Tagging.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                                                                                                                                            • ActsAsTaggableOn::Tagging.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                                                                                                                              • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                                                                • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                                                  • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                  • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                              • ActsAsTaggableOn::Tagging.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                            • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                                                                                                                                              • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                                                                                                                                • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                                                                                                                                  • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                                • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                                                                                                                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                              • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                                                                                                                                                • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                                                                                                                                                  • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                                                                                                                                                    • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                                                                      • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                                                        • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                        • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                        • ActiveRecord::Associations::AliasTracker.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:14
                                                                                                                                                          • ActiveRecord::Associations::AliasTracker.empty $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:10
                                                                                                                                                            • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:11
                                                                                                                                                              • Hash#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:11
                                                                                                                                                            • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:11
                                                                                                                                                              • ActiveRecord::Associations::AliasTracker#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:54
                                                                                                                                                        • ActsAsTaggableOn::Tagging.table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:125
                                                                                                                                                        • ActsAsTaggableOn::Tagging.table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:125
                                                                                                                                                        • ActiveRecord::Associations::AliasTracker#aliased_table_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:59
                                                                                                                                                          • Numeric#zero? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:60
                                                                                                                                                          • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:63
                                                                                                                                                            • Arel::Table#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:14
                                                                                                                                                              • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:15
                                                                                                                                                              • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:22
                                                                                                                                                        • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:98
                                                                                                                                                        • ActiveRecord::Associations::JoinDependency.make_tree $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:50
                                                                                                                                                          • ActiveRecord::Associations::JoinDependency.walk_tree $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:56
                                                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:58
                                                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:58
                                                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:60
                                                                                                                                                            • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:61
                                                                                                                                                        • ActiveRecord::Associations::JoinDependency#build $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:222
                                                                                                                                                          • Enumerable#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:223
                                                                                                                                                            • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:223
                                                                                                                                                        • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:99
                                                                                                                                                          • ActiveRecord::Associations::JoinDependency::JoinBase#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_part.rb:20
                                                                                                                                                        • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:100
                                                                                                                                                    • ActiveRecord::Associations::JoinDependency#join_constraints $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:107
                                                                                                                                                      • Enumerable#flat_map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:108
                                                                                                                                                        • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:108
                                                                                                                                                      • Enumerable#flat_map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:112
                                                                                                                                                        • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:112
                                                                                                                                                          • ActiveRecord::Associations::JoinDependency#block in join_constraints $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:112
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::JoinBase#match? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_base.rb:7
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::JoinBase#match? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_part.rb:29
                                                                                                                                                                • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_part.rb:30
                                                                                                                                                                • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_part.rb:30
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency#walk $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:208
                                                                                                                                                              • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:209
                                                                                                                                                                • ActiveRecord::Associations::JoinDependency#block in walk $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:209
                                                                                                                                                                  • Enumerable#find $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:210
                                                                                                                                                                    • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:210
                                                                                                                                                              • Enumerable#partition $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:211
                                                                                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:211
                                                                                                                                                                  • Array#first $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:211
                                                                                                                                                              • Enumerable#flat_map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:213
                                                                                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:213
                                                                                                                                                                  • ActiveRecord::Associations::JoinDependency#block in walk $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:213
                                                                                                                                                                    • ActiveRecord::Associations::JoinDependency#make_outer_joins $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:172
                                                                                                                                                                      • ActiveRecord::Associations::JoinDependency#table_aliases_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:188
                                                                                                                                                                        • ActiveRecord::Reflection::BelongsToReflection#chain $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:388
                                                                                                                                                                        • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:189
                                                                                                                                                                          • ActiveRecord::Associations::JoinDependency#block in table_aliases_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:189
                                                                                                                                                                            • ActiveRecord::Reflection::BelongsToReflection#table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:134
                                                                                                                                                                              • ActiveRecord::Reflection::BelongsToReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                                                                                              • ActsAsTaggableOn::Tag.table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:125
                                                                                                                                                                            • BasicObject#!= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:192
                                                                                                                                                                              • ActiveRecord::Reflection::BelongsToReflection#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:251
                                                                                                                                                                                • BasicObject#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:252
                                                                                                                                                                            • ActiveRecord::Associations::JoinDependency#table_alias_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:202
                                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::JoinBase#table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_part.rb:18
                                                                                                                                                                                • ActsAsTaggableOn::Tagging.table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:125
                                                                                                                                                                            • ActiveRecord::Associations::AliasTracker#aliased_table_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:59
                                                                                                                                                                              • Numeric#zero? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:60
                                                                                                                                                                              • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:63
                                                                                                                                                                                • Arel::Table#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:14
                                                                                                                                                                                  • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:15
                                                                                                                                                                                  • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:22
                                                                                                                                                                      • ActiveRecord::Associations::JoinDependency#make_constraints $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:165
                                                                                                                                                                        • ActiveRecord::Reflection::BelongsToReflection#chain $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:388
                                                                                                                                                                        • ActiveRecord::Associations::JoinDependency::JoinBase#table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_base.rb:12
                                                                                                                                                                          • ActsAsTaggableOn::Tagging.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                                                                                        • ActiveRecord::Reflection::BelongsToReflection#scope_chain $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:398
                                                                                                                                                                        • ActiveRecord::Associations::JoinDependency::JoinAssociation#join_constraints $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_association.rb:26
                                                                                                                                                                          • Array#reverse $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_association.rb:29
                                                                                                                                                                          • Array#reverse $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_association.rb:32
                                                                                                                                                                          • Array#reverse_each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_association.rb:36
                                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::JoinAssociation#block in join_constraints $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_association.rb:36
                                                                                                                                                                              • Array#shift $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_association.rb:37
                                                                                                                                                                              • ActiveRecord::Reflection::BelongsToReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                                                                                              • ActiveRecord::Reflection::BelongsToReflection#join_keys $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:614
                                                                                                                                                                                • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:470
                                                                                                                                                                                • ActiveRecord::Reflection::BelongsToReflection#association_primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:338
                                                                                                                                                                                  • ActiveRecord::Reflection::BelongsToReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                                                                                                  • ActiveRecord::Reflection::BelongsToReflection#primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:580
                                                                                                                                                                                    • ActsAsTaggableOn::Tag.primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/primary_key.rb:72
                                                                                                                                                                                • ActiveRecord::Reflection::BelongsToReflection#foreign_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:329
                                                                                                                                                                                • #<Class:ActiveRecord::Reflection::AbstractReflection::JoinKeys>#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:616
                                                                                                                                                                                  • Struct#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:616
                                                                                                                                                                              • ActiveRecord::Reflection::AbstractReflection::JoinKeys#key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_association.rb:41
                                                                                                                                                                              • ActiveRecord::Reflection::AbstractReflection::JoinKeys#foreign_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_association.rb:42
                                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::JoinAssociation#build_constraint $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_association.rb:105
                                                                                                                                                                                • Arel::Table#[] $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:99
                                                                                                                                                                                  • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                                                                                                    • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                                                                                                • Arel::Table#[] $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:99
                                                                                                                                                                                  • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                                                                                                    • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                                                                                                • Arel::Attributes::Attribute#eq $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:15
                                                                                                                                                                                  • Arel::Attributes::Attribute#quoted_node $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:207
                                                                                                                                                                                    • Arel::Nodes.build_quoted $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:81
                                                                                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                                                                                  • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:16
                                                                                                                                                                                    • Arel::Nodes::Equality#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                                                                                      • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                                                                                                • ActsAsTaggableOn::Tag.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                                                                                                              • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_association.rb:46
                                                                                                                                                                              • ActsAsTaggableOn::Tag.current_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:13
                                                                                                                                                                                • ActsAsTaggableOn::Tag.base_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:100
                                                                                                                                                                                  • Module#< $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:101
                                                                                                                                                                                  • Class#superclass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:105
                                                                                                                                                                                • Module#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:14
                                                                                                                                                                                • ActiveRecord::Scoping::ScopeRegistry.value_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:50
                                                                                                                                                                                  • ActiveRecord::Scoping::ScopeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                                                                    • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                                    • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                                  • ActiveRecord::Scoping::ScopeRegistry#value_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:67
                                                                                                                                                                                    • ActiveRecord::Scoping::ScopeRegistry#raise_invalid_scope_type! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:80
                                                                                                                                                                                      • Array#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:81
                                                                                                                                                                              • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                                                                                                • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                                                                                                  • ActsAsTaggableOn::Tag.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                                                                                                    • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                                                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                                                                                                  • ActsAsTaggableOn::Tag::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                                                                                              • ActsAsTaggableOn::Tag.build_default_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:97
                                                                                                                                                                                • ActsAsTaggableOn::Tag.abstract_class? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:130
                                                                                                                                                                                • Kernel#method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:99
                                                                                                                                                                                • Method#owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:99
                                                                                                                                                                                • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:99
                                                                                                                                                                                • ActsAsTaggableOn::Tag.default_scopes -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                                  • ActsAsTaggableOn::Tag.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                                • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:102
                                                                                                                                                                              • Array#compact $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_association.rb:61
                                                                                                                                                                              • Array#concat $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_association.rb:61
                                                                                                                                                                              • Array#shift $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_association.rb:63
                                                                                                                                                                              • Enumerable#inject $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_association.rb:63
                                                                                                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_association.rb:63
                                                                                                                                                                              • Arel::Table#create_on $GemPath0/gems/arel-6.0.4/lib/arel/factory_methods.rb:29
                                                                                                                                                                                • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/factory_methods.rb:30
                                                                                                                                                                                  • Arel::Nodes::On#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/unary.rb:7
                                                                                                                                                                                    • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/unary.rb:8
                                                                                                                                                                              • Arel::Table#create_join $GemPath0/gems/arel-6.0.4/lib/arel/factory_methods.rb:17
                                                                                                                                                                                • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/factory_methods.rb:18
                                                                                                                                                                                  • Arel::Nodes::OuterJoin#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                                                                                    • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                                                                                          • #<Class:ActiveRecord::Associations::JoinDependency::JoinAssociation::JoinInformation>#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_association.rb:87
                                                                                                                                                                            • Struct#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_association.rb:87
                                                                                                                                                                      • Enumerable#flat_map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:177
                                                                                                                                                                        • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:177
                                                                                                                                                              • Enumerable#flat_map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:214
                                                                                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:214
                                                                                                                                                              • Array#concat $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:214
                                                                                                                                                      • Array#concat $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:112
                                                                                                                                                    • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1047
                                                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in build_joins $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1047
                                                                                                                                                        • ActiveRecord::Associations::JoinDependency::JoinAssociation::JoinInformation#joins $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1048
                                                                                                                                                        • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1048
                                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block (2 levels) in build_joins $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1048
                                                                                                                                                            • Arel::SelectManager#from $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:87
                                                                                                                                                              • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:88
                                                                                                                                                              • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:91
                                                                                                                                                        • ActiveRecord::Associations::JoinDependency::JoinAssociation::JoinInformation#binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1049
                                                                                                                                                        • Array#concat $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1049
                                                                                                                                                    • Arel::SelectManager#join_sources $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:229
                                                                                                                                                    • Array#concat $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1052
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                  • Array#- $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:868
                                                                                                                                                    • Arel::Nodes::Equality#eql? $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:22
                                                                                                                                                      • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                                                                                                      • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                                                                                                    • Arel::Nodes::Equality#eql? $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:22
                                                                                                                                                      • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                                                                                                      • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                                                                                                    • Arel::Nodes::In#eql? $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:22
                                                                                                                                                      • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                                                                                                      • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#collapse_wheres $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:937
                                                                                                                                                    • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:938
                                                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in collapse_wheres $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:938
                                                                                                                                                        • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:939
                                                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in collapse_wheres $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:938
                                                                                                                                                        • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:939
                                                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in collapse_wheres $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:938
                                                                                                                                                        • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:939
                                                                                                                                                    • Array#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                                                                                                                      • Array#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:24
                                                                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:944
                                                                                                                                                      • Arel::Nodes::And#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/and.rb:6
                                                                                                                                                        • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/and.rb:7
                                                                                                                                                    • Arel::SelectManager#where $GemPath0/gems/arel-6.0.4/lib/arel/tree_manager.rb:38
                                                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/tree_manager.rb:39
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#having_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#limit_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#offset_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#group_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#build_order $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1099
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                                    • Array#uniq $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1100
                                                                                                                                                    • Array#reject! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1101
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#build_select $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1057
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#select_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
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                                                                                                                                                          • Struct#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
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                                                                                                                                                          • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                          • Struct#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
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                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
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                                                                                                                                                          • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                          • Struct#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                            • Arel::Nodes::TableAlias#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:18
                                                                                                                                                              • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                              • Array#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                                • Arel::Table#hash $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:119
                                                                                                                                                                  • String#hash $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:123
                                                                                                                                                                • String#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                            • String#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                          • String#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                      • Arel::Nodes::As#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:18
                                                                                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                        • Array#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                          • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                          • Struct#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                            • Arel::Nodes::TableAlias#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:18
                                                                                                                                                              • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                              • Array#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                                • Arel::Table#hash $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:119
                                                                                                                                                                  • String#hash $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:123
                                                                                                                                                                • String#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                            • String#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                          • String#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                      • Arel::Nodes::As#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:18
                                                                                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                        • Array#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                          • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                          • Struct#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                            • Arel::Nodes::TableAlias#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:18
                                                                                                                                                              • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                              • Array#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                                • Arel::Table#hash $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:119
                                                                                                                                                                  • String#hash $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:123
                                                                                                                                                                • String#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                            • String#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                          • String#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                      • Arel::Nodes::As#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:18
                                                                                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                        • Array#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                          • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                          • Struct#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                            • Arel::Nodes::TableAlias#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:18
                                                                                                                                                              • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                              • Array#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                                • Arel::Table#hash $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:119
                                                                                                                                                                  • String#hash $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:123
                                                                                                                                                                • String#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                            • String#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
                                                                                                                                                          • String#hash $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:19
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                                                                                                                                                      • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1066
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in arel_columns $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1066
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                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1067
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1069
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in arel_columns $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1066
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1067
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1067
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1069
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in arel_columns $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1066
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1067
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1067
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1069
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in arel_columns $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1066
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1067
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1067
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1069
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in arel_columns $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1066
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1067
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1067
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1069
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in arel_columns $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1066
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1067
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1067
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1069
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in arel_columns $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1066
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1067
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1067
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1069
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in arel_columns $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1066
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1067
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1067
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1069
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in arel_columns $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1066
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1067
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1067
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1069
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in arel_columns $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1066
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1067
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1067
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1069
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in arel_columns $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1066
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1067
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1067
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1069
                                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in arel_columns $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1066
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1067
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1067
                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1069
                                                                                                                                                    • Arel::SelectManager#project $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:132
                                                                                                                                                      • Array#map $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:135
                                                                                                                                                        • Arel::SelectManager#block in project $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:135
                                                                                                                                                          • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                                                                                                          • Array#include? $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                                                                                                        • Arel::SelectManager#block in project $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:135
                                                                                                                                                          • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                                                                                                          • Array#include? $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                                                                                                        • Arel::SelectManager#block in project $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:135
                                                                                                                                                          • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                                                                                                          • Array#include? $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                                                                                                        • Arel::SelectManager#block in project $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:135
                                                                                                                                                          • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                                                                                                          • Array#include? $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                                                                                                        • Arel::SelectManager#block in project $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:135
                                                                                                                                                          • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                                                                                                          • Array#include? $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                                                                                                        • Arel::SelectManager#block in project $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:135
                                                                                                                                                          • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                                                                                                          • Array#include? $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                                                                                                        • Arel::SelectManager#block in project $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:135
                                                                                                                                                          • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                                                                                                          • Array#include? $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                                                                                                        • Arel::SelectManager#block in project $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:135
                                                                                                                                                          • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                                                                                                          • Array#include? $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                                                                                                        • Arel::SelectManager#block in project $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:135
                                                                                                                                                          • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                                                                                                          • Array#include? $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                                                                                                        • Arel::SelectManager#block in project $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:135
                                                                                                                                                          • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                                                                                                          • Array#include? $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                                                                                                        • Arel::SelectManager#block in project $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:135
                                                                                                                                                          • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                                                                                                          • Array#include? $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                                                                                                        • Arel::SelectManager#block in project $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:135
                                                                                                                                                          • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                                                                                                          • Array#include? $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                                                                                                      • Array#concat $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:135
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#distinct_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                                                  • Arel::SelectManager#distinct $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:149
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:48
                                                                                                                                                • ActsAsTaggableOn::Tagging.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                                                                                                                                  • ActsAsTaggableOn::Tagging.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                                                                                                                                    • ActsAsTaggableOn::Tagging.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                                                                                                                      • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                                                        • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                          • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                      • ActsAsTaggableOn::Tagging.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                        • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                    • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                                                                                                                                      • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                                                                                                                        • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                                                                                                                          • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                                                                                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                        • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                      • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                                                                                                                                        • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                                                                                                                                          • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                                                                                                                                            • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                                                              • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                                                • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#select_all $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/query_cache.rb:64
                                                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#select_all $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:30
                                                                                                                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#binds_from_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:385
                                                                                                                                                    • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:386
                                                                                                                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#to_sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:10
                                                                                                                                                    • Kernel#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:11
                                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#collector $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:138
                                                                                                                                                      • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:140
                                                                                                                                                        • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#initialize $GemPath0/gems/arel-6.0.4/lib/arel/collectors/sql_string.rb:8
                                                                                                                                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#initialize $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:4
                                                                                                                                                    • Arel::Visitors::SQLite#accept $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:6
                                                                                                                                                      • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                        • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                        • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                        • Arel::Visitors::SQLite#visit_Arel_Nodes_SelectStatement $GemPath0/gems/arel-6.0.4/lib/arel/visitors/sqlite.rb:11
                                                                                                                                                          • Arel::Visitors::SQLite#visit_Arel_Nodes_SelectStatement $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:203
                                                                                                                                                            • Enumerable#inject $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:209
                                                                                                                                                              • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:209
                                                                                                                                                                • Arel::Visitors::SQLite#block in visit_Arel_Nodes_SelectStatement $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:209
                                                                                                                                                                  • Arel::Visitors::SQLite#visit_Arel_Nodes_SelectCore $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:230
                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                    • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:785
                                                                                                                                                                    • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:785
                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                    • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:240
                                                                                                                                                                      • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:240
                                                                                                                                                                        • Arel::Visitors::SQLite#block in visit_Arel_Nodes_SelectCore $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:240
                                                                                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Attributes_Attribute $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:709
                                                                                                                                                                              • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                                                                                              • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                                                                                              • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:775
                                                                                                                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:776
                                                                                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:50
                                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                                                    • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                    • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                              • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:711
                                                                                                                                                                              • Arel::Visitors::SQLite#quote_column_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:780
                                                                                                                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:781
                                                                                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                        • Arel::Visitors::SQLite#block in visit_Arel_Nodes_SelectCore $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:240
                                                                                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Nodes_As $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:698
                                                                                                                                                                              • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Arel::Visitors::SQLite#visit_Arel_Attributes_Attribute $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:709
                                                                                                                                                                                  • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                                                                                                  • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:775
                                                                                                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:776
                                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:50
                                                                                                                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                        • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                  • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:711
                                                                                                                                                                                  • Arel::Visitors::SQLite#quote_column_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:780
                                                                                                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:781
                                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                      • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                              • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Arel::Visitors::SQLite#literal $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:720
                                                                                                                                                                                  • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:720
                                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                        • Arel::Visitors::SQLite#block in visit_Arel_Nodes_SelectCore $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:240
                                                                                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Nodes_As $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:698
                                                                                                                                                                              • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Arel::Visitors::SQLite#visit_Arel_Attributes_Attribute $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:709
                                                                                                                                                                                  • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                                                                                                  • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:775
                                                                                                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:776
                                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:50
                                                                                                                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                        • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                  • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:711
                                                                                                                                                                                  • Arel::Visitors::SQLite#quote_column_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:780
                                                                                                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:781
                                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                      • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                              • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Arel::Visitors::SQLite#literal $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:720
                                                                                                                                                                                  • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:720
                                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                        • Arel::Visitors::SQLite#block in visit_Arel_Nodes_SelectCore $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:240
                                                                                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Nodes_As $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:698
                                                                                                                                                                              • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Arel::Visitors::SQLite#visit_Arel_Attributes_Attribute $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:709
                                                                                                                                                                                  • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                                                                                                  • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:775
                                                                                                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:776
                                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:50
                                                                                                                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                        • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                  • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:711
                                                                                                                                                                                  • Arel::Visitors::SQLite#quote_column_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:780
                                                                                                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:781
                                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                      • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                              • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Arel::Visitors::SQLite#literal $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:720
                                                                                                                                                                                  • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:720
                                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                        • Arel::Visitors::SQLite#block in visit_Arel_Nodes_SelectCore $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:240
                                                                                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Nodes_As $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:698
                                                                                                                                                                              • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Arel::Visitors::SQLite#visit_Arel_Attributes_Attribute $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:709
                                                                                                                                                                                  • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                                                                                                  • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:775
                                                                                                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:776
                                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:50
                                                                                                                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                        • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                  • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:711
                                                                                                                                                                                  • Arel::Visitors::SQLite#quote_column_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:780
                                                                                                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:781
                                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                      • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                              • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Arel::Visitors::SQLite#literal $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:720
                                                                                                                                                                                  • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:720
                                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                        • Arel::Visitors::SQLite#block in visit_Arel_Nodes_SelectCore $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:240
                                                                                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Nodes_As $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:698
                                                                                                                                                                              • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Arel::Visitors::SQLite#visit_Arel_Attributes_Attribute $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:709
                                                                                                                                                                                  • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                                                                                                  • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:775
                                                                                                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:776
                                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:50
                                                                                                                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                        • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                  • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:711
                                                                                                                                                                                  • Arel::Visitors::SQLite#quote_column_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:780
                                                                                                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:781
                                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                      • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                              • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Arel::Visitors::SQLite#literal $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:720
                                                                                                                                                                                  • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:720
                                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                        • Arel::Visitors::SQLite#block in visit_Arel_Nodes_SelectCore $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:240
                                                                                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Nodes_As $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:698
                                                                                                                                                                              • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Arel::Visitors::SQLite#visit_Arel_Attributes_Attribute $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:709
                                                                                                                                                                                  • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                                                                                                  • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:775
                                                                                                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:776
                                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:50
                                                                                                                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                        • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                  • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:711
                                                                                                                                                                                  • Arel::Visitors::SQLite#quote_column_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:780
                                                                                                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:781
                                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                      • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                              • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Arel::Visitors::SQLite#literal $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:720
                                                                                                                                                                                  • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:720
                                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                        • Arel::Visitors::SQLite#block in visit_Arel_Nodes_SelectCore $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:240
                                                                                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Nodes_As $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:698
                                                                                                                                                                              • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Arel::Visitors::SQLite#visit_Arel_Attributes_Attribute $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:709
                                                                                                                                                                                  • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                                                                                                  • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:775
                                                                                                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:776
                                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:50
                                                                                                                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                        • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                  • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:711
                                                                                                                                                                                  • Arel::Visitors::SQLite#quote_column_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:780
                                                                                                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:781
                                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                      • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                              • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Arel::Visitors::SQLite#literal $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:720
                                                                                                                                                                                  • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:720
                                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                        • Arel::Visitors::SQLite#block in visit_Arel_Nodes_SelectCore $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:240
                                                                                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Nodes_As $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:698
                                                                                                                                                                              • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Arel::Visitors::SQLite#visit_Arel_Attributes_Attribute $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:709
                                                                                                                                                                                  • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                                                                                                  • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:775
                                                                                                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:776
                                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:50
                                                                                                                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                        • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                  • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:711
                                                                                                                                                                                  • Arel::Visitors::SQLite#quote_column_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:780
                                                                                                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:781
                                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                      • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                              • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Arel::Visitors::SQLite#literal $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:720
                                                                                                                                                                                  • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:720
                                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                        • Arel::Visitors::SQLite#block in visit_Arel_Nodes_SelectCore $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:240
                                                                                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Nodes_As $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:698
                                                                                                                                                                              • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Arel::Visitors::SQLite#visit_Arel_Attributes_Attribute $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:709
                                                                                                                                                                                  • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                                                                                                  • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:775
                                                                                                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:776
                                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:50
                                                                                                                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                        • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                  • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:711
                                                                                                                                                                                  • Arel::Visitors::SQLite#quote_column_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:780
                                                                                                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:781
                                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                      • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                              • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Arel::Visitors::SQLite#literal $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:720
                                                                                                                                                                                  • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:720
                                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                        • Arel::Visitors::SQLite#block in visit_Arel_Nodes_SelectCore $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:240
                                                                                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Nodes_As $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:698
                                                                                                                                                                              • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Arel::Visitors::SQLite#visit_Arel_Attributes_Attribute $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:709
                                                                                                                                                                                  • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                                                                                                  • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:775
                                                                                                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:776
                                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:50
                                                                                                                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                        • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                  • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:711
                                                                                                                                                                                  • Arel::Visitors::SQLite#quote_column_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:780
                                                                                                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:781
                                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                      • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                              • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Arel::Visitors::SQLite#literal $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:720
                                                                                                                                                                                  • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:720
                                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                        • Arel::Visitors::SQLite#block in visit_Arel_Nodes_SelectCore $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:240
                                                                                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Nodes_As $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:698
                                                                                                                                                                              • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Arel::Visitors::SQLite#visit_Arel_Attributes_Attribute $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:709
                                                                                                                                                                                  • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                                                                                                  • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:775
                                                                                                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:776
                                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:50
                                                                                                                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                        • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                  • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:711
                                                                                                                                                                                  • Arel::Visitors::SQLite#quote_column_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:780
                                                                                                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:781
                                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                      • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                              • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                • Arel::Visitors::SQLite#literal $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:720
                                                                                                                                                                                  • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:720
                                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                    • Arel::Nodes::JoinSource#empty? $GemPath0/gems/arel-6.0.4/lib/arel/nodes/join_source.rb:13
                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                    • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                      • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                      • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                      • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                      • Arel::Visitors::SQLite#visit_Arel_Nodes_JoinSource $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:555
                                                                                                                                                                        • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                          • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                          • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                          • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                          • Arel::Visitors::SQLite#visit_Arel_Table $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:620
                                                                                                                                                                            • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:775
                                                                                                                                                                              • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:776
                                                                                                                                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:50
                                                                                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                                                  • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                  • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                            • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                        • Array#any? $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:559
                                                                                                                                                                        • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                        • Arel::Visitors::SQLite#inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:791
                                                                                                                                                                          • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                                                          • Enumerable#inject $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                                                            • Enumerator#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                                                              • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                                                                • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                                                                  • Arel::Visitors::SQLite#block in inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                                                                    • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                      • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                      • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                      • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                      • Arel::Visitors::SQLite#visit_Arel_Nodes_OuterJoin $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:585
                                                                                                                                                                                        • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                                        • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                          • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                          • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                          • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                          • Arel::Visitors::SQLite#visit_Arel_Table $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:620
                                                                                                                                                                                            • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:775
                                                                                                                                                                                              • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:776
                                                                                                                                                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:50
                                                                                                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                                                                  • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                                  • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                            • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                                        • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                                        • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                          • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                          • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                          • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                          • Arel::Visitors::SQLite#visit_Arel_Nodes_On $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:610
                                                                                                                                                                                            • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                                            • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                              • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                              • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                              • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                              • Arel::Visitors::SQLite#visit_Arel_Nodes_Equality $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:672
                                                                                                                                                                                                • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                                  • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                                  • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                                  • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                                  • Arel::Visitors::SQLite#visit_Arel_Attributes_Attribute $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:709
                                                                                                                                                                                                    • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                                                                                                                    • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                                                                                                                    • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:775
                                                                                                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:776
                                                                                                                                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:50
                                                                                                                                                                                                        • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                                                                          • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                                          • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                                    • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:711
                                                                                                                                                                                                    • Arel::Visitors::SQLite#quote_column_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:780
                                                                                                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:781
                                                                                                                                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                                        • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                                                • Kernel#nil? $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:677
                                                                                                                                                                                                • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                                                • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                                  • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                                  • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                                  • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                                  • Arel::Visitors::SQLite#visit_Arel_Attributes_Attribute $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:709
                                                                                                                                                                                                    • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                                                                                                                    • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                                                                                                                    • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:775
                                                                                                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:776
                                                                                                                                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:50
                                                                                                                                                                                                        • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                                                                          • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                                          • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                                    • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:711
                                                                                                                                                                                                    • Arel::Visitors::SQLite#quote_column_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:780
                                                                                                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:781
                                                                                                                                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                                        • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                    • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:254
                                                                                                                                                                      • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:254
                                                                                                                                                                        • Arel::Visitors::SQLite#block in visit_Arel_Nodes_SelectCore $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:254
                                                                                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Nodes_And $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:649
                                                                                                                                                                              • Arel::Visitors::SQLite#inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:791
                                                                                                                                                                                • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                                                                • Enumerable#inject $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                                                                  • Enumerator#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                                                                    • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                                                                      • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                                                                        • Arel::Visitors::SQLite#block in inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Nodes_Equality $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:672
                                                                                                                                                                                              • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                                • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                                • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                                • Arel::Visitors::SQLite#visit_Arel_Attributes_Attribute $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:709
                                                                                                                                                                                                  • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                                                                                                                  • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                                                                                                                  • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:775
                                                                                                                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:776
                                                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:50
                                                                                                                                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                                        • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                                  • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:711
                                                                                                                                                                                                  • Arel::Visitors::SQLite#quote_column_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:780
                                                                                                                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:781
                                                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                                      • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                                              • Kernel#nil? $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:677
                                                                                                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                                              • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                                • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                                • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                                • Arel::Visitors::SQLite#visit_Arel_Nodes_BindParam $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:722
                                                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#add_bind $GemPath0/gems/arel-6.0.4/lib/arel/collectors/sql_string.rb:13
                                                                                                                                                                                                    • Arel::Visitors::SQLite#block in visit_Arel_Nodes_BindParam $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:723
                                                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                                        • Arel::Visitors::SQLite#block in inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Nodes_Equality $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:672
                                                                                                                                                                                              • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                                • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                                • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                                • Arel::Visitors::SQLite#visit_Arel_Attributes_Attribute $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:709
                                                                                                                                                                                                  • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                                                                                                                  • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                                                                                                                  • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:775
                                                                                                                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:776
                                                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:50
                                                                                                                                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                                        • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                                  • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:711
                                                                                                                                                                                                  • Arel::Visitors::SQLite#quote_column_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:780
                                                                                                                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:781
                                                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                                      • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                                              • Arel::Nodes::Casted#nil? $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:68
                                                                                                                                                                                                • Kernel#nil? $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:68
                                                                                                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                                              • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                                • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                                • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                                • Arel::Visitors::SQLite#visit_Arel_Nodes_Casted $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:150
                                                                                                                                                                                                  • Arel::Visitors::SQLite#quoted $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:731
                                                                                                                                                                                                    • Arel::Visitors::SQLite#column_for $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:170
                                                                                                                                                                                                      • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:172
                                                                                                                                                                                                      • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:172
                                                                                                                                                                                                      • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:173
                                                                                                                                                                                                      • Arel::Visitors::SQLite#table_exists? $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:166
                                                                                                                                                                                                        • Arel::Visitors::SQLite#schema_cache $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:72
                                                                                                                                                                                                        • ActiveRecord::ConnectionAdapters::SchemaCache#table_exists? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:21
                                                                                                                                                                                                          • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:23
                                                                                                                                                                                                      • Arel::Visitors::SQLite#column_cache $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:180
                                                                                                                                                                                                        • Arel::Visitors::SQLite#schema_cache $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:72
                                                                                                                                                                                                        • ActiveRecord::ConnectionAdapters::SchemaCache#columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:48
                                                                                                                                                                                                    • Arel::Visitors::SQLite#quote $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:770
                                                                                                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:771
                                                                                                                                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:9
                                                                                                                                                                                                        • Kernel#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:11
                                                                                                                                                                                                        • ActiveRecord::Type::String#type_cast_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:14
                                                                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:16
                                                                                                                                                                                                          • ActiveSupport::Duration.=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/duration.rb:93
                                                                                                                                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/duration.rb:94
                                                                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:17
                                                                                                                                                                                                          • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:17
                                                                                                                                                                                                            • String#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:17
                                                                                                                                                                                                        • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_quote $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:207
                                                                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:209
                                                                                                                                                                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_quote $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:100
                                                                                                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:102
                                                                                                                                                                                                            • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:103
                                                                                                                                                                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_string $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:231
                                                                                                                                                                                                              • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:232
                                                                                                                                                                                                              • SQLite3::Database.quote $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:47
                                                                                                                                                                                                                • String#gsub $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:48
                                                                                                                                                                                                  • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:151
                                                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                                        • Arel::Visitors::SQLite#block in inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Nodes_In $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:628
                                                                                                                                                                                              • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:629
                                                                                                                                                                                              • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                                • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                                • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                                • Arel::Visitors::SQLite#visit_Arel_Attributes_Attribute $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:709
                                                                                                                                                                                                  • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                                                                                                                  • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                                                                                                                  • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:775
                                                                                                                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:776
                                                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:50
                                                                                                                                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                                        • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                                  • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:711
                                                                                                                                                                                                  • Arel::Visitors::SQLite#quote_column_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:780
                                                                                                                                                                                                    • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:781
                                                                                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                                      • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                                              • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                                • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                                • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                                • Arel::Visitors::SQLite#visit_Array $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:765
                                                                                                                                                                                                  • Arel::Visitors::SQLite#inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:791
                                                                                                                                                                                                    • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                                                                                    • Enumerable#inject $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                                                                                      • Enumerator#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                                                                                        • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                                                                                          • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                                                                                            • Arel::Visitors::SQLite#block in inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                                                                                              • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                                                • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                                                • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                                                • Arel::Visitors::SQLite#visit_Arel_Nodes_Casted $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:150
                                                                                                                                                                                                                  • Arel::Visitors::SQLite#quoted $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:731
                                                                                                                                                                                                                    • Arel::Visitors::SQLite#column_for $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:170
                                                                                                                                                                                                                      • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:172
                                                                                                                                                                                                                      • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:172
                                                                                                                                                                                                                      • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:173
                                                                                                                                                                                                                      • Arel::Visitors::SQLite#table_exists? $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:166
                                                                                                                                                                                                                        • Arel::Visitors::SQLite#schema_cache $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:72
                                                                                                                                                                                                                        • ActiveRecord::ConnectionAdapters::SchemaCache#table_exists? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:21
                                                                                                                                                                                                                          • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:23
                                                                                                                                                                                                                      • Arel::Visitors::SQLite#column_cache $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:180
                                                                                                                                                                                                                        • Arel::Visitors::SQLite#schema_cache $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:72
                                                                                                                                                                                                                        • ActiveRecord::ConnectionAdapters::SchemaCache#columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:48
                                                                                                                                                                                                                    • Arel::Visitors::SQLite#quote $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:770
                                                                                                                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:771
                                                                                                                                                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:9
                                                                                                                                                                                                                        • Kernel#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:11
                                                                                                                                                                                                                        • ActiveRecord::Type::Integer#type_cast_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:20
                                                                                                                                                                                                                          • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:8
                                                                                                                                                                                                                            • TrueClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:10
                                                                                                                                                                                                                            • FalseClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:11
                                                                                                                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:12
                                                                                                                                                                                                                            • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:97
                                                                                                                                                                                                                              • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:98
                                                                                                                                                                                                                              • ActiveRecord::Type::Integer#cast_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:34
                                                                                                                                                                                                                                • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:39
                                                                                                                                                                                                                          • ActiveRecord::Type::Integer#ensure_in_range $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:43
                                                                                                                                                                                                                            • Range#cover? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                                                                                                                                                                              • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                                                                                                                                                                              • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                                                                                                                                                                        • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_quote $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:207
                                                                                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:209
                                                                                                                                                                                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_quote $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:100
                                                                                                                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:102
                                                                                                                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:102
                                                                                                                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:102
                                                                                                                                                                                                                            • TrueClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:104
                                                                                                                                                                                                                            • FalseClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:105
                                                                                                                                                                                                                            • NilClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:106
                                                                                                                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:108
                                                                                                                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:109
                                                                                                                                                                                                                            • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                                                                              • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                                                                                • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                                                                                                                                                • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                                                                                                                                                  • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:151
                                                                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                                                            • Arel::Visitors::SQLite#block in inject_join $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:793
                                                                                                                                                                                                              • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                                                                                                • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                                                                                                • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                                                • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                                                                                                • Arel::Visitors::SQLite#visit_Arel_Nodes_Casted $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:150
                                                                                                                                                                                                                  • Arel::Visitors::SQLite#quoted $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:731
                                                                                                                                                                                                                    • Arel::Visitors::SQLite#column_for $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:170
                                                                                                                                                                                                                      • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:172
                                                                                                                                                                                                                      • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:172
                                                                                                                                                                                                                      • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:173
                                                                                                                                                                                                                      • Arel::Visitors::SQLite#table_exists? $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:166
                                                                                                                                                                                                                        • Arel::Visitors::SQLite#schema_cache $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:72
                                                                                                                                                                                                                        • ActiveRecord::ConnectionAdapters::SchemaCache#table_exists? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:21
                                                                                                                                                                                                                          • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:23
                                                                                                                                                                                                                      • Arel::Visitors::SQLite#column_cache $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:180
                                                                                                                                                                                                                        • Arel::Visitors::SQLite#schema_cache $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:72
                                                                                                                                                                                                                        • ActiveRecord::ConnectionAdapters::SchemaCache#columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:48
                                                                                                                                                                                                                    • Arel::Visitors::SQLite#quote $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:770
                                                                                                                                                                                                                      • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:771
                                                                                                                                                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:9
                                                                                                                                                                                                                        • Kernel#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:11
                                                                                                                                                                                                                        • ActiveRecord::Type::Integer#type_cast_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:20
                                                                                                                                                                                                                          • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:8
                                                                                                                                                                                                                            • TrueClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:10
                                                                                                                                                                                                                            • FalseClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:11
                                                                                                                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/numeric.rb:12
                                                                                                                                                                                                                            • ActiveRecord::Type::Integer#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:97
                                                                                                                                                                                                                              • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:98
                                                                                                                                                                                                                              • ActiveRecord::Type::Integer#cast_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:34
                                                                                                                                                                                                                                • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:39
                                                                                                                                                                                                                          • ActiveRecord::Type::Integer#ensure_in_range $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:43
                                                                                                                                                                                                                            • Range#cover? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                                                                                                                                                                              • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                                                                                                                                                                              • Integer#<=> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:44
                                                                                                                                                                                                                        • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_quote $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:207
                                                                                                                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:209
                                                                                                                                                                                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_quote $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:100
                                                                                                                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:102
                                                                                                                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:102
                                                                                                                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:102
                                                                                                                                                                                                                            • TrueClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:104
                                                                                                                                                                                                                            • FalseClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:105
                                                                                                                                                                                                                            • NilClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:106
                                                                                                                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:108
                                                                                                                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:109
                                                                                                                                                                                                                            • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                                                                              • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                                                                                • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                                                                                                                                                • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                                                                                                                                                  • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:151
                                                                                                                                                                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                                                    • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:785
                                                                                                                                                            • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:785
                                                                                                                                                            • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:785
                                                                                                                                                            • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:785
                                                                                                                                                    • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:13
                                                                                                                                                      • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:13
                                                                                                                                                        • Array#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:13
                                                                                                                                                    • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#compile $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:133
                                                                                                                                                      • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#compile $GemPath0/gems/arel-6.0.4/lib/arel/collectors/sql_string.rb:19
                                                                                                                                                        • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#value $GemPath0/gems/arel-6.0.4/lib/arel/collectors/plain_string.rb:8
                                                                                                                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#select $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/database_statements.rb:355
                                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#exec_query $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:276
                                                                                                                                                      • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:277
                                                                                                                                                        • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in exec_query $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:277
                                                                                                                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:23
                                                                                                                                                            • Kernel#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:24
                                                                                                                                                            • ActiveRecord::Type::String#type_cast_for_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:14
                                                                                                                                                              • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:16
                                                                                                                                                              • ActiveSupport::Duration.=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/duration.rb:93
                                                                                                                                                                • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/duration.rb:94
                                                                                                                                                              • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:17
                                                                                                                                                              • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:17
                                                                                                                                                                • String#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:17
                                                                                                                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:216
                                                                                                                                                              • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:218
                                                                                                                                                              • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:220
                                                                                                                                                              • String#encoding $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:221
                                                                                                                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:118
                                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:120
                                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:120
                                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:120
                                                                                                                                                                • TrueClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:122
                                                                                                                                                                • FalseClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:123
                                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:125
                                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:126
                                                                                                                                                                • Time.=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:15
                                                                                                                                                                  • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:16
                                                                                                                                                                  • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:16
                                                                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#types_which_need_no_typecasting $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:96
                                                                                                                                                                • NilClass#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:127
                                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:127
                                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:127
                                                                                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#log $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:477
                                                                                                                                                        • Kernel#object_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:482
                                                                                                                                                        • ActiveSupport::Notifications::Instrumenter#instrument $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:17
                                                                                                                                                          • ActiveSupport::Notifications::Instrumenter#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:30
                                                                                                                                                            • ActiveSupport::Notifications::Fanout#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:41
                                                                                                                                                              • ActiveSupport::Notifications::Fanout#listeners_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:53
                                                                                                                                                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                              • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:42
                                                                                                                                                                • ActiveSupport::Notifications::Fanout#block in start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:42
                                                                                                                                                                  • ActiveSupport::Notifications::Fanout::Subscribers::Evented#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:97
                                                                                                                                                                    • ActiveRecord::LogSubscriber#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:78
                                                                                                                                                                      • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                                                                                                                                        • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                                                                                                      • ActiveRecord::LogSubscriber#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:85
                                                                                                                                                                        • #<Class:Time>#now $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:86
                                                                                                                                                                          • Time#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:86
                                                                                                                                                                        • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:86
                                                                                                                                                                          • ActiveSupport::Notifications::Event#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:50
                                                                                                                                                                            • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:52
                                                                                                                                                                              • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:52
                                                                                                                                                                                • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:52
                                                                                                                                                                        • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:105
                                                                                                                                                                          • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                                                            • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                            • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                          • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:121
                                                                                                                                                                        • Array#last $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:87
                                                                                                                                                                        • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:105
                                                                                                                                                                          • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                                                            • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                            • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                          • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:121
                                                                                                                                                                        • Array#push $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:90
                                                                                                                                                                • ActiveSupport::Notifications::Fanout#block in start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:42
                                                                                                                                                                  • ActiveSupport::Notifications::Fanout::Subscribers::Evented#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:97
                                                                                                                                                                    • ActiveRecord::ExplainSubscriber#start $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/explain_subscriber.rb:6
                                                                                                                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in log $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:484
                                                                                                                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in exec_query $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:281
                                                                                                                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#without_prepared_statement? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:494
                                                                                                                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter::StatementPool#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:85
                                                                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter::StatementPool#cache $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:103
                                                                                                                                                              • SQLite3::Database#prepare $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:90
                                                                                                                                                                • Class#new $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:91
                                                                                                                                                                  • SQLite3::Statement#initialize $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:91
                                                                                                                                                                • Kernel#block_given? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:92
                                                                                                                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter::StatementPool#[]= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:88
                                                                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter::StatementPool#cache $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:103
                                                                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter::StatementPool#cache $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:103
                                                                                                                                                              • SQLite3::Statement#columns $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:101
                                                                                                                                                                • SQLite3::Statement#get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:135
                                                                                                                                                                  • SQLite3::Statement#column_count $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                                                                                                  • Class#new $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                                                                                                    • Array#initialize $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                                                                                                        • SQLite3::Statement#column_name $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:137
                                                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                                                                                                        • SQLite3::Statement#column_name $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:137
                                                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                                                                                                        • SQLite3::Statement#column_name $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:137
                                                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                                                                                                        • SQLite3::Statement#column_name $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:137
                                                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                                                                                                        • SQLite3::Statement#column_name $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:137
                                                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                                                                                                        • SQLite3::Statement#column_name $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:137
                                                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                                                                                                        • SQLite3::Statement#column_name $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:137
                                                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                                                                                                        • SQLite3::Statement#column_name $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:137
                                                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                                                                                                        • SQLite3::Statement#column_name $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:137
                                                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                                                                                                        • SQLite3::Statement#column_name $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:137
                                                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                                                                                                        • SQLite3::Statement#column_name $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:137
                                                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                                                                                                        • SQLite3::Statement#column_name $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:137
                                                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                                                                                                        • SQLite3::Statement#column_name $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:137
                                                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                                                                                                        • SQLite3::Statement#column_name $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:137
                                                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                                                                                                        • SQLite3::Statement#column_name $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:137
                                                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                                                                                                        • SQLite3::Statement#column_name $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:137
                                                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                                                                                                        • SQLite3::Statement#column_name $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:137
                                                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                                                                                                        • SQLite3::Statement#column_name $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:137
                                                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                                                                                                        • SQLite3::Statement#column_name $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:137
                                                                                                                                                                  • SQLite3::Statement#column_count $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                                                                                                  • Class#new $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                                                                                                    • Array#initialize $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                                                                                                        • SQLite3::Statement#column_decltype $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:140
                                                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                                                                                                        • SQLite3::Statement#column_decltype $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:140
                                                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                                                                                                        • SQLite3::Statement#column_decltype $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:140
                                                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                                                                                                        • SQLite3::Statement#column_decltype $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:140
                                                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                                                                                                        • SQLite3::Statement#column_decltype $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:140
                                                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                                                                                                        • SQLite3::Statement#column_decltype $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:140
                                                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                                                                                                        • SQLite3::Statement#column_decltype $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:140
                                                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                                                                                                        • SQLite3::Statement#column_decltype $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:140
                                                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                                                                                                        • SQLite3::Statement#column_decltype $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:140
                                                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                                                                                                        • SQLite3::Statement#column_decltype $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:140
                                                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                                                                                                        • SQLite3::Statement#column_decltype $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:140
                                                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                                                                                                        • SQLite3::Statement#column_decltype $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:140
                                                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                                                                                                        • SQLite3::Statement#column_decltype $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:140
                                                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                                                                                                        • SQLite3::Statement#column_decltype $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:140
                                                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                                                                                                        • SQLite3::Statement#column_decltype $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:140
                                                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                                                                                                        • SQLite3::Statement#column_decltype $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:140
                                                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                                                                                                        • SQLite3::Statement#column_decltype $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:140
                                                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                                                                                                        • SQLite3::Statement#column_decltype $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:140
                                                                                                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                                                                                                        • SQLite3::Statement#column_decltype $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:140
                                                                                                                                                              • SQLite3::Statement#reset! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:298
                                                                                                                                                              • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:299
                                                                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block (2 levels) in exec_query $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:299
                                                                                                                                                              • SQLite3::Statement#bind_params $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:35
                                                                                                                                                                • Array#flatten $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:37
                                                                                                                                                                • Array#each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:37
                                                                                                                                                                  • SQLite3::Statement#block in bind_params $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:37
                                                                                                                                                                    • Module#=== $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:38
                                                                                                                                                                    • SQLite3::Statement#bind_param $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:41
                                                                                                                                                              • Enumerable#to_a $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:302
                                                                                                                                                                • SQLite3::Statement#each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:106
                                                                                                                                                                  • Kernel#loop $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                                                                                                                                    • SQLite3::Statement#block in each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                                                                                                                                      • SQLite3::Statement#step $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                                                                                                        • SQLite3::Database#encoding $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                                                                                                      • SQLite3::Statement#done? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:109
                                                                                                                                                                    • SQLite3::Statement#block in each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                                                                                                                                      • SQLite3::Statement#step $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                                                                                                        • SQLite3::Database#encoding $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                                                                                                      • SQLite3::Statement#done? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:109
                                                                                                                                                                    • SQLite3::Statement#block in each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                                                                                                                                      • SQLite3::Statement#step $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                                                                                                        • SQLite3::Database#encoding $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                                                                                                      • SQLite3::Statement#done? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:109
                                                                                                                                                              • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:302
                                                                                                                                                                • ActiveRecord::Result#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:38
                                                                                                                                                          • ActiveSupport::Notifications::Instrumenter#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:35
                                                                                                                                                            • ActiveSupport::Notifications::Fanout#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:45
                                                                                                                                                              • ActiveSupport::Notifications::Fanout#listeners_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:53
                                                                                                                                                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                              • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:46
                                                                                                                                                                • ActiveSupport::Notifications::Fanout#block in finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:46
                                                                                                                                                                  • ActiveSupport::Notifications::Fanout::Subscribers::Evented#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:101
                                                                                                                                                                    • ActiveRecord::LogSubscriber#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:82
                                                                                                                                                                      • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                                                                                                                                        • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                                                                                                      • ActiveRecord::LogSubscriber#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:93
                                                                                                                                                                        • #<Class:Time>#now $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:94
                                                                                                                                                                          • Time#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:94
                                                                                                                                                                        • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:105
                                                                                                                                                                          • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                                                            • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                            • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                          • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:121
                                                                                                                                                                        • Array#pop $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:95
                                                                                                                                                                        • Hash#merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:97
                                                                                                                                                                        • String#split $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:99
                                                                                                                                                                        • Array#first $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:99
                                                                                                                                                                        • ActiveRecord::LogSubscriber#sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:37
                                                                                                                                                                          • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:38
                                                                                                                                                                          • ActiveRecord::LogSubscriber.runtime $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:9
                                                                                                                                                                            • ActiveRecord::RuntimeRegistry.sql_runtime $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                                                                              • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                                                                • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                                • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                          • ActiveSupport::Notifications::Event#duration $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:60
                                                                                                                                                                            • Time#minus_with_coercion $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:249
                                                                                                                                                                              • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:250
                                                                                                                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:251
                                                                                                                                                                              • Time#minus_with_duration $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:236
                                                                                                                                                                                • ActiveSupport::Duration.=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/duration.rb:93
                                                                                                                                                                                  • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/duration.rb:94
                                                                                                                                                                                • Time#- $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:240
                                                                                                                                                                                  • Integer#fdiv $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:240
                                                                                                                                                                          • ActiveRecord::LogSubscriber.runtime= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:5
                                                                                                                                                                            • ActiveRecord::RuntimeRegistry.sql_runtime= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:19
                                                                                                                                                                              • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                                                                • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                                • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                          • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                                                                                                                                            • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                                                                                                          • ActiveSupport::Logger#debug? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:93
                                                                                                                                                                            • ActiveSupport::Logger#level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:28
                                                                                                                                                                              • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:16
                                                                                                                                                                                • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:12
                                                                                                                                                                                  • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                                                                                                                                  • BasicObject#__id__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                                                                                                                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                                                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                                          • Array#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:43
                                                                                                                                                                          • ActiveSupport::Notifications::Event#duration $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:60
                                                                                                                                                                          • Float#round $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:45
                                                                                                                                                                          • Float#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                            • Float#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                                                                                              • Float#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                                                                                                          • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:50
                                                                                                                                                                            • ActiveRecord::LogSubscriber#block in sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:50
                                                                                                                                                                              • ActiveRecord::LogSubscriber#render_bind $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:23
                                                                                                                                                                                • ActiveRecord::ConnectionAdapters::Column#binary? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/column.rb:18
                                                                                                                                                                                  • ActiveRecord::Type::String#binary? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:61
                                                                                                                                                                          • Array#inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:52
                                                                                                                                                                            • Array#inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:52
                                                                                                                                                                              • String#inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:52
                                                                                                                                                                              • String#inspect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:52
                                                                                                                                                                          • ActiveRecord::LogSubscriber#odd? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:65
                                                                                                                                                                          • ActiveRecord::LogSubscriber#color $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:102
                                                                                                                                                                            • ActiveRecord::LogSubscriber#colorize_logging $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:67
                                                                                                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:104
                                                                                                                                                                          • ActiveRecord::LogSubscriber#color $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:102
                                                                                                                                                                            • ActiveRecord::LogSubscriber#colorize_logging $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:67
                                                                                                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:104
                                                                                                                                                                            • NilClass#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:106
                                                                                                                                                                          • ActiveRecord::LogSubscriber#debug $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:92
                                                                                                                                                                            • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                                                                                                                                              • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                                                                                                            • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/log_subscriber.rb:69
                                                                                                                                                                              • ActiveRecord::Base.logger $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                                                                                                            • ActiveSupport::Logger#debug /usr/local/lib/ruby/2.5.0/logger.rb:492
                                                                                                                                                                              • ActiveSupport::Logger#add -> block (2 levels) in broadcast $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:25
                                                                                                                                                                                • ActiveSupport::Logger#block (2 levels) in broadcast $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:25
                                                                                                                                                                                  • ActiveSupport::Logger#add $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:86
                                                                                                                                                                                    • Kernel#nil? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:87
                                                                                                                                                                                    • ActiveSupport::Logger#level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:28
                                                                                                                                                                                      • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:16
                                                                                                                                                                                        • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:12
                                                                                                                                                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                                                                                                                                          • BasicObject#__id__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                                                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                                                    • ActiveSupport::Logger#add /usr/local/lib/ruby/2.5.0/logger.rb:455
                                                                                                                                                                                      • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:457
                                                                                                                                                                                      • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:460
                                                                                                                                                                                      • NilClass#nil? /usr/local/lib/ruby/2.5.0/logger.rb:463
                                                                                                                                                                                      • Kernel#block_given? /usr/local/lib/ruby/2.5.0/logger.rb:464
                                                                                                                                                                                      • ActiveSupport::Logger#format_severity /usr/local/lib/ruby/2.5.0/logger.rb:579
                                                                                                                                                                                      • #<Class:Time>#now /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                                                                                                                                        • Time#initialize /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                                                                                                                                      • ActiveSupport::Logger#format_message /usr/local/lib/ruby/2.5.0/logger.rb:583
                                                                                                                                                                                        • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:102
                                                                                                                                                                                          • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:103
                                                                                                                                                                                      • Logger::LogDevice#write /usr/local/lib/ruby/2.5.0/logger.rb:686
                                                                                                                                                                                        • Logger::LogDevice#mon_synchronize /usr/local/lib/ruby/2.5.0/monitor.rb:223
                                                                                                                                                                                          • Logger::LogDevice#mon_enter /usr/local/lib/ruby/2.5.0/monitor.rb:183
                                                                                                                                                                                            • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:184
                                                                                                                                                                                            • Thread::Mutex#lock /usr/local/lib/ruby/2.5.0/monitor.rb:185
                                                                                                                                                                                            • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:186
                                                                                                                                                                                          • Logger::LogDevice#block in write /usr/local/lib/ruby/2.5.0/logger.rb:688
                                                                                                                                                                                            • IO#write /usr/local/lib/ruby/2.5.0/logger.rb:697
                                                                                                                                                                                          • Logger::LogDevice#mon_exit /usr/local/lib/ruby/2.5.0/monitor.rb:195
                                                                                                                                                                                            • Logger::LogDevice#mon_check_owner /usr/local/lib/ruby/2.5.0/monitor.rb:259
                                                                                                                                                                                              • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:260
                                                                                                                                                                                            • Thread::Mutex#unlock /usr/local/lib/ruby/2.5.0/monitor.rb:200
                                                                                                                                                                                  • ActiveSupport::Logger#add $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:86
                                                                                                                                                                                    • Kernel#nil? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:87
                                                                                                                                                                                    • ActiveSupport::Logger#level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:28
                                                                                                                                                                                      • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:16
                                                                                                                                                                                        • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:12
                                                                                                                                                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                                                                                                                                          • BasicObject#__id__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                                                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                                                    • ActiveSupport::Logger#add /usr/local/lib/ruby/2.5.0/logger.rb:455
                                                                                                                                                                                      • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:457
                                                                                                                                                                                      • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:460
                                                                                                                                                                                      • NilClass#nil? /usr/local/lib/ruby/2.5.0/logger.rb:463
                                                                                                                                                                                      • Kernel#block_given? /usr/local/lib/ruby/2.5.0/logger.rb:464
                                                                                                                                                                                      • ActiveSupport::Logger#format_severity /usr/local/lib/ruby/2.5.0/logger.rb:579
                                                                                                                                                                                      • #<Class:Time>#now /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                                                                                                                                        • Time#initialize /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                                                                                                                                                      • ActiveSupport::Logger#format_message /usr/local/lib/ruby/2.5.0/logger.rb:583
                                                                                                                                                                                        • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:20
                                                                                                                                                                                          • ActiveSupport::Logger::SimpleFormatter#tags_text $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:50
                                                                                                                                                                                            • ActiveSupport::Logger::SimpleFormatter#current_tags $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:45
                                                                                                                                                                                              • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:46
                                                                                                                                                                                              • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:46
                                                                                                                                                                                            • Array#any? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:52
                                                                                                                                                                                          • NilClass#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:21
                                                                                                                                                                                          • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:102
                                                                                                                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:103
                                                                                                                                                                                      • Logger::LogDevice#write /usr/local/lib/ruby/2.5.0/logger.rb:686
                                                                                                                                                                                        • Logger::LogDevice#mon_synchronize /usr/local/lib/ruby/2.5.0/monitor.rb:223
                                                                                                                                                                                          • Logger::LogDevice#mon_enter /usr/local/lib/ruby/2.5.0/monitor.rb:183
                                                                                                                                                                                            • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:184
                                                                                                                                                                                            • Thread::Mutex#lock /usr/local/lib/ruby/2.5.0/monitor.rb:185
                                                                                                                                                                                            • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:186
                                                                                                                                                                                          • Logger::LogDevice#block in write /usr/local/lib/ruby/2.5.0/logger.rb:688
                                                                                                                                                                                            • IO#write /usr/local/lib/ruby/2.5.0/logger.rb:697
                                                                                                                                                                                          • Logger::LogDevice#mon_exit /usr/local/lib/ruby/2.5.0/monitor.rb:195
                                                                                                                                                                                            • Logger::LogDevice#mon_check_owner /usr/local/lib/ruby/2.5.0/monitor.rb:259
                                                                                                                                                                                              • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:260
                                                                                                                                                                                            • Thread::Mutex#unlock /usr/local/lib/ruby/2.5.0/monitor.rb:200
                                                                                                                                                                • ActiveSupport::Notifications::Fanout#block in finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:46
                                                                                                                                                                  • ActiveSupport::Notifications::Fanout::Subscribers::Evented#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:101
                                                                                                                                                                    • ActiveRecord::ExplainSubscriber#finish $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/explain_subscriber.rb:10
                                                                                                                                                                      • ActiveRecord::ExplainRegistry.collect? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:50
                                                                                                                                                                        • ActiveRecord::ExplainRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                          • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                        • ActiveRecord::ExplainRegistry#collect? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/explain_registry.rb:21
                                                                                                                                              • ActiveRecord::Associations::JoinDependency#instantiate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:132
                                                                                                                                                • ActiveRecord::Associations::JoinDependency::JoinBase#primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_part.rb:18
                                                                                                                                                  • ActsAsTaggableOn::Tagging.primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/primary_key.rb:72
                                                                                                                                                • ActiveRecord::Associations::JoinDependency::Aliases#column_alias $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:31
                                                                                                                                                  • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:32
                                                                                                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:135
                                                                                                                                                  • Hash#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:135
                                                                                                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:141
                                                                                                                                                  • Hash#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:141
                                                                                                                                                • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:142
                                                                                                                                                • ActiveRecord::Associations::JoinDependency#block in instantiate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:141
                                                                                                                                                  • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:141
                                                                                                                                                • ActiveRecord::Associations::JoinDependency::Aliases#column_aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:27
                                                                                                                                                  • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:28
                                                                                                                                                • ActiveSupport::Notifications.instrumenter $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications.rb:185
                                                                                                                                                  • ActiveSupport::Notifications::InstrumentationRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                                    • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                    • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                  • ActiveSupport::Notifications::InstrumentationRegistry#instrumenter_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications.rb:205
                                                                                                                                                    • Kernel#hash $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications.rb:206
                                                                                                                                                • ActiveRecord::Result#length $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:45
                                                                                                                                                • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:149
                                                                                                                                                • ActiveSupport::Notifications::Instrumenter#instrument $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:17
                                                                                                                                                  • ActiveSupport::Notifications::Instrumenter#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:30
                                                                                                                                                    • ActiveSupport::Notifications::Fanout#start $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:41
                                                                                                                                                      • ActiveSupport::Notifications::Fanout#listeners_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:53
                                                                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                      • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:42
                                                                                                                                                  • ActiveRecord::Associations::JoinDependency#block in instantiate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:152
                                                                                                                                                    • ActiveRecord::Result#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:49
                                                                                                                                                      • Kernel#block_given? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:50
                                                                                                                                                      • ActiveRecord::Result#hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:105
                                                                                                                                                        • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                            • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                              • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                                • String#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                            • String#freeze $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                            • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                              • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                                • String#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                            • String#freeze $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                            • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                              • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                                • String#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                            • String#freeze $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                            • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                              • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                                • String#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                            • String#freeze $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                            • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                              • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                                • String#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                            • String#freeze $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                            • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                              • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                                • String#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                            • String#freeze $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                            • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                              • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                                • String#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                            • String#freeze $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                            • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                              • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                                • String#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                            • String#freeze $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                            • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                              • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                                • String#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                            • String#freeze $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                            • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                              • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                                • String#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                            • String#freeze $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                            • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                              • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                                • String#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                            • String#freeze $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                            • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                              • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                                • String#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                            • String#freeze $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                            • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                              • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                                • String#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                            • String#freeze $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                            • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                              • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                                • String#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                            • String#freeze $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                            • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                              • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                                • String#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                            • String#freeze $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                            • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                              • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                                • String#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                            • String#freeze $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                            • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                              • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                                • String#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                            • String#freeze $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                            • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                              • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                                • String#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                            • String#freeze $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                            • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                              • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                                • String#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                            • String#freeze $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:110
                                                                                                                                                        • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:111
                                                                                                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:111
                                                                                                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:111
                                                                                                                                                      • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:51
                                                                                                                                                        • ActiveRecord::Result#block in each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:51
                                                                                                                                                          • ActiveRecord::Associations::JoinDependency#block (2 levels) in instantiate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:153
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::JoinBase#instantiate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_part.rb:65
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::JoinBase#extract_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_part.rb:48
                                                                                                                                                              • ActsAsTaggableOn::Tagging.instantiate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:66
                                                                                                                                                                • ActsAsTaggableOn::Tagging.discriminate_class_for_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:167
                                                                                                                                                                  • ActsAsTaggableOn::Tagging.using_single_table_inheritance? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:175
                                                                                                                                                                    • ActsAsTaggableOn::Tagging.inheritance_column $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:186
                                                                                                                                                                      • Class#superclass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:187
                                                                                                                                                                      • ActiveRecord::Base.inheritance_column $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:186
                                                                                                                                                                    • NilClass#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                                                                                                                                      • NilClass#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:54
                                                                                                                                                                  • ActsAsTaggableOn::Tagging.discriminate_class_for_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:78
                                                                                                                                                                • ActsAsTaggableOn::Tagging.attributes_builder $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:233
                                                                                                                                                                • ActiveRecord::AttributeSet::Builder#build_from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:13
                                                                                                                                                                  • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:14
                                                                                                                                                                  • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:18
                                                                                                                                                                    • ActiveRecord::LazyAttributeHash#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:27
                                                                                                                                                                  • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:19
                                                                                                                                                                    • ActiveRecord::AttributeSet#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:5
                                                                                                                                                                • ActsAsTaggableOn::Tagging.allocate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:112
                                                                                                                                                                  • ActsAsTaggableOn::Tagging.define_attribute_methods $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:79
                                                                                                                                                                  • Class#allocate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:114
                                                                                                                                                                • ActsAsTaggableOn::Tagging#init_with $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:301
                                                                                                                                                                  • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:302
                                                                                                                                                                  • ActiveRecord::LegacyYamlAdapter.convert $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/legacy_yaml_adapter.rb:3
                                                                                                                                                                    • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/legacy_yaml_adapter.rb:4
                                                                                                                                                                  • ActsAsTaggableOn::Tagging#init_internals $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:547
                                                                                                                                                                  • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:309
                                                                                                                                                                  • ActsAsTaggableOn::Tagging.define_attribute_methods $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:79
                                                                                                                                                                  • ActsAsTaggableOn::Tagging#_run_find_callbacks $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:777
                                                                                                                                                                    • ActsAsTaggableOn::Tagging#_find_callbacks -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                                                                                                      • ActsAsTaggableOn::Tagging#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                                                                                                        • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                                                                                                                                                        • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                                                                                                        • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                                                                                                          • ActsAsTaggableOn::Tagging._find_callbacks -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                            • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                    • ActsAsTaggableOn::Tagging#__run_callbacks__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:86
                                                                                                                                                                      • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:529
                                                                                                                                                                      • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:88
                                                                                                                                                                  • ActsAsTaggableOn::Tagging#_run_initialize_callbacks $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:777
                                                                                                                                                                    • ActsAsTaggableOn::Tagging#_initialize_callbacks -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                                                                                                      • ActsAsTaggableOn::Tagging#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                                                                                                        • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                                                                                                                                                        • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                                                                                                        • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                                                                                                          • ActsAsTaggableOn::Tagging._initialize_callbacks -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                            • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                    • ActsAsTaggableOn::Tagging#__run_callbacks__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:86
                                                                                                                                                                      • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:529
                                                                                                                                                                      • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:88
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency#construct $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:236
                                                                                                                                                              • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:237
                                                                                                                                                              • ActsAsTaggableOn::Tagging#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                                                                                • ActsAsTaggableOn::Tagging#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                                                                                  • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                                                                                  • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                                                                                    • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                                                                                      • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                                                                                        • ActiveRecord::LazyAttributeHash#assign_default_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:94
                                                                                                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:95
                                                                                                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:97
                                                                                                                                                                          • ActiveRecord::Attribute.from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:4
                                                                                                                                                                            • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:5
                                                                                                                                                                              • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:29
                                                                                                                                                                    • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                                                                                      • ActiveRecord::Attribute::FromDatabase#original_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:41
                                                                                                                                                                        • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:103
                                                                                                                                                                          • ActiveRecord::Type::Integer#type_cast_from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:15
                                                                                                                                                                            • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:16
                                                                                                                                                                            • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:17
                                                                                                                                                              • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:240
                                                                                                                                                                • ActiveRecord::Associations::JoinDependency#block in construct $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:240
                                                                                                                                                                  • ActiveRecord::Reflection::BelongsToReflection#collection? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:424
                                                                                                                                                                  • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:245
                                                                                                                                                                  • ActiveRecord::Associations::JoinDependency::JoinAssociation#primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_part.rb:18
                                                                                                                                                                    • ActsAsTaggableOn::Tag.primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/primary_key.rb:72
                                                                                                                                                                  • ActiveRecord::Associations::JoinDependency::Aliases#column_alias $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:31
                                                                                                                                                                    • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:32
                                                                                                                                                                  • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:254
                                                                                                                                                                  • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:260
                                                                                                                                                                  • ActiveRecord::Associations::JoinDependency#block in instantiate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:135
                                                                                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:136
                                                                                                                                                                      • Hash#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:136
                                                                                                                                                                    • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:136
                                                                                                                                                                  • ActiveRecord::Associations::JoinDependency#block (2 levels) in instantiate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:136
                                                                                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:137
                                                                                                                                                                      • Hash#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:137
                                                                                                                                                                  • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:260
                                                                                                                                                                  • ActiveRecord::Associations::JoinDependency#block (3 levels) in instantiate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:137
                                                                                                                                                                    • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:137
                                                                                                                                                                  • ActiveRecord::Associations::JoinDependency#construct_model $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:272
                                                                                                                                                                    • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:273
                                                                                                                                                                    • ActiveRecord::Associations::JoinDependency#block in instantiate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:141
                                                                                                                                                                      • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:141
                                                                                                                                                                    • ActiveRecord::Associations::JoinDependency::Aliases#column_aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:27
                                                                                                                                                                      • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:28
                                                                                                                                                                    • ActiveRecord::Associations::JoinDependency::JoinAssociation#instantiate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_part.rb:65
                                                                                                                                                                      • ActiveRecord::Associations::JoinDependency::JoinAssociation#extract_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_part.rb:48
                                                                                                                                                                      • ActsAsTaggableOn::Tag.instantiate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:66
                                                                                                                                                                        • ActsAsTaggableOn::Tag.discriminate_class_for_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:167
                                                                                                                                                                          • ActsAsTaggableOn::Tag.using_single_table_inheritance? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:175
                                                                                                                                                                            • ActsAsTaggableOn::Tag.inheritance_column $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:186
                                                                                                                                                                              • Class#superclass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:187
                                                                                                                                                                              • ActiveRecord::Base.inheritance_column $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:186
                                                                                                                                                                            • NilClass#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                                                                                                                                              • NilClass#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:54
                                                                                                                                                                          • ActsAsTaggableOn::Tag.discriminate_class_for_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:78
                                                                                                                                                                        • ActsAsTaggableOn::Tag.attributes_builder $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:233
                                                                                                                                                                        • ActiveRecord::AttributeSet::Builder#build_from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:13
                                                                                                                                                                          • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:14
                                                                                                                                                                          • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:18
                                                                                                                                                                            • ActiveRecord::LazyAttributeHash#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:27
                                                                                                                                                                          • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:19
                                                                                                                                                                            • ActiveRecord::AttributeSet#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:5
                                                                                                                                                                        • ActsAsTaggableOn::Tag.allocate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:112
                                                                                                                                                                          • ActsAsTaggableOn::Tag.define_attribute_methods $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:79
                                                                                                                                                                          • Class#allocate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:114
                                                                                                                                                                        • ActsAsTaggableOn::Tag#init_with $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:301
                                                                                                                                                                          • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:302
                                                                                                                                                                          • ActiveRecord::LegacyYamlAdapter.convert $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/legacy_yaml_adapter.rb:3
                                                                                                                                                                            • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/legacy_yaml_adapter.rb:4
                                                                                                                                                                          • ActsAsTaggableOn::Tag#init_internals $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:547
                                                                                                                                                                          • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:309
                                                                                                                                                                          • ActsAsTaggableOn::Tag.define_attribute_methods $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:79
                                                                                                                                                                          • ActsAsTaggableOn::Tag#_run_find_callbacks $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:777
                                                                                                                                                                            • ActsAsTaggableOn::Tag#_find_callbacks -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                                                                                                              • ActsAsTaggableOn::Tag#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                                                                                                                • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                                                                                                                                                                • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                                                                                                                • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                                                                                                                  • ActsAsTaggableOn::Tag._find_callbacks -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                                    • ActsAsTaggableOn::Tag.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                            • ActsAsTaggableOn::Tag#__run_callbacks__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:86
                                                                                                                                                                              • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:529
                                                                                                                                                                              • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:88
                                                                                                                                                                          • ActsAsTaggableOn::Tag#_run_initialize_callbacks $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:777
                                                                                                                                                                            • ActsAsTaggableOn::Tag#_initialize_callbacks -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                                                                                                              • ActsAsTaggableOn::Tag#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                                                                                                                • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                                                                                                                                                                • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                                                                                                                • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                                                                                                                  • ActsAsTaggableOn::Tag._initialize_callbacks -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                                    • ActsAsTaggableOn::Tag.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                            • ActsAsTaggableOn::Tag#__run_callbacks__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:86
                                                                                                                                                                              • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:529
                                                                                                                                                                              • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:88
                                                                                                                                                                    • ActsAsTaggableOn::Tagging#association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:157
                                                                                                                                                                      • ActsAsTaggableOn::Tagging#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:160
                                                                                                                                                                      • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:161
                                                                                                                                                                      • ActsAsTaggableOn::Tagging._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                                                                                        • ActsAsTaggableOn::Tagging._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                          • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                        • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                                                                                                      • ActiveRecord::Reflection::BelongsToReflection#association_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:447
                                                                                                                                                                        • ActiveRecord::Reflection::BelongsToReflection#macro $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:610
                                                                                                                                                                        • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:470
                                                                                                                                                                      • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:162
                                                                                                                                                                        • ActiveRecord::Associations::BelongsToAssociation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:24
                                                                                                                                                                          • ActiveRecord::Reflection::BelongsToReflection#check_validity! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:354
                                                                                                                                                                            • ActiveRecord::Reflection::BelongsToReflection#check_validity_of_inverse! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:181
                                                                                                                                                                              • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:470
                                                                                                                                                                              • ActiveRecord::Reflection::BelongsToReflection#has_inverse? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:402
                                                                                                                                                                                • ActiveRecord::Reflection::BelongsToReflection#inverse_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:499
                                                                                                                                                                                  • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:500
                                                                                                                                                                                    • ActiveRecord::Reflection::BelongsToReflection#block in inverse_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:500
                                                                                                                                                                          • ActiveRecord::Associations::BelongsToAssociation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/belongs_to_association.rb:25
                                                                                                                                                                            • ActiveRecord::Associations::BelongsToAssociation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:42
                                                                                                                                                                          • ActiveRecord::Associations::BelongsToAssociation#reset_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:101
                                                                                                                                                                      • ActsAsTaggableOn::Tagging#association_instance_set $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:176
                                                                                                                                                                    • ActiveRecord::Reflection::BelongsToReflection#collection? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:424
                                                                                                                                                                    • ActiveRecord::Associations::BelongsToAssociation#target= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:80
                                                                                                                                                                      • ActiveRecord::Associations::BelongsToAssociation#loaded! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:63
                                                                                                                                                                        • ActiveRecord::Associations::BelongsToAssociation#stale_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/belongs_to_association.rb:109
                                                                                                                                                                          • ActiveRecord::Reflection::BelongsToReflection#foreign_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:329
                                                                                                                                                                          • ActsAsTaggableOn::Tagging#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                                                                                            • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                                                                                            • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                                                                                              • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                                                                                                • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                                                                                                  • ActiveRecord::LazyAttributeHash#assign_default_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:94
                                                                                                                                                                                    • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:95
                                                                                                                                                                                    • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:97
                                                                                                                                                                                    • ActiveRecord::Attribute.from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:4
                                                                                                                                                                                      • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:5
                                                                                                                                                                                        • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:29
                                                                                                                                                                              • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                                                                                                • ActiveRecord::Attribute::FromDatabase#original_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:41
                                                                                                                                                                                  • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:103
                                                                                                                                                                                    • ActiveRecord::Type::Integer#type_cast_from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:15
                                                                                                                                                                                      • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:16
                                                                                                                                                                                      • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:17
                                                                                                                                                                          • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                            • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                                                                                              • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                                                                                                    • ActiveRecord::Associations::BelongsToAssociation#set_inverse_instance $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:106
                                                                                                                                                                      • ActiveRecord::Associations::BelongsToAssociation#invertible_for? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/belongs_to_association.rb:96
                                                                                                                                                                        • ActiveRecord::Associations::BelongsToAssociation#inverse_reflection_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:226
                                                                                                                                                                          • ActiveRecord::Reflection::BelongsToReflection#inverse_of $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:175
                                                                                                                                                                            • ActiveRecord::Reflection::BelongsToReflection#inverse_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:499
                                                                                                                                                                              • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:500
                                                                                                                                                                                • ActiveRecord::Reflection::BelongsToReflection#block in inverse_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:500
                                                                                                                                                                  • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:266
                                                                                                                                                                  • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:266
                                                                                                                                                                  • ActiveRecord::Associations::JoinDependency#construct $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:236
                                                                                                                                                                    • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:237
                                                                                                                                                                    • ActsAsTaggableOn::Tag#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                                                                                      • ActsAsTaggableOn::Tag#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                                                                                              • ActiveRecord::LazyAttributeHash#assign_default_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:94
                                                                                                                                                                                • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:95
                                                                                                                                                                                • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:97
                                                                                                                                                                                • ActiveRecord::Attribute.from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:4
                                                                                                                                                                                  • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:5
                                                                                                                                                                                    • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:29
                                                                                                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                                                                                            • ActiveRecord::Attribute::FromDatabase#original_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:41
                                                                                                                                                                              • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:103
                                                                                                                                                                                • ActiveRecord::Type::Integer#type_cast_from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:15
                                                                                                                                                                                  • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:16
                                                                                                                                                                                  • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:17
                                                                                                                                                                    • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:240
                                                                                                                                                        • ActiveRecord::Result#block in each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/result.rb:51
                                                                                                                                                          • ActiveRecord::Associations::JoinDependency#block (2 levels) in instantiate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:153
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency::JoinBase#instantiate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_part.rb:65
                                                                                                                                                              • ActiveRecord::Associations::JoinDependency::JoinBase#extract_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_part.rb:48
                                                                                                                                                              • ActsAsTaggableOn::Tagging.instantiate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:66
                                                                                                                                                                • ActsAsTaggableOn::Tagging.discriminate_class_for_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:167
                                                                                                                                                                  • ActsAsTaggableOn::Tagging.using_single_table_inheritance? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:175
                                                                                                                                                                    • ActsAsTaggableOn::Tagging.inheritance_column $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:186
                                                                                                                                                                      • Class#superclass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:187
                                                                                                                                                                      • ActiveRecord::Base.inheritance_column $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:186
                                                                                                                                                                    • NilClass#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                                                                                                                                      • NilClass#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:54
                                                                                                                                                                  • ActsAsTaggableOn::Tagging.discriminate_class_for_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:78
                                                                                                                                                                • ActsAsTaggableOn::Tagging.attributes_builder $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:233
                                                                                                                                                                • ActiveRecord::AttributeSet::Builder#build_from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:13
                                                                                                                                                                  • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:14
                                                                                                                                                                  • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:18
                                                                                                                                                                    • ActiveRecord::LazyAttributeHash#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:27
                                                                                                                                                                  • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:19
                                                                                                                                                                    • ActiveRecord::AttributeSet#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:5
                                                                                                                                                                • ActsAsTaggableOn::Tagging.allocate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:112
                                                                                                                                                                  • ActsAsTaggableOn::Tagging.define_attribute_methods $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:79
                                                                                                                                                                  • Class#allocate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:114
                                                                                                                                                                • ActsAsTaggableOn::Tagging#init_with $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:301
                                                                                                                                                                  • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:302
                                                                                                                                                                  • ActiveRecord::LegacyYamlAdapter.convert $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/legacy_yaml_adapter.rb:3
                                                                                                                                                                    • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/legacy_yaml_adapter.rb:4
                                                                                                                                                                  • ActsAsTaggableOn::Tagging#init_internals $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:547
                                                                                                                                                                  • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:309
                                                                                                                                                                  • ActsAsTaggableOn::Tagging.define_attribute_methods $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:79
                                                                                                                                                                  • ActsAsTaggableOn::Tagging#_run_find_callbacks $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:777
                                                                                                                                                                    • ActsAsTaggableOn::Tagging#_find_callbacks -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                                                                                                      • ActsAsTaggableOn::Tagging#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                                                                                                        • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                                                                                                                                                        • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                                                                                                        • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                                                                                                          • ActsAsTaggableOn::Tagging._find_callbacks -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                            • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                    • ActsAsTaggableOn::Tagging#__run_callbacks__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:86
                                                                                                                                                                      • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:529
                                                                                                                                                                      • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:88
                                                                                                                                                                  • ActsAsTaggableOn::Tagging#_run_initialize_callbacks $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:777
                                                                                                                                                                    • ActsAsTaggableOn::Tagging#_initialize_callbacks -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                                                                                                      • ActsAsTaggableOn::Tagging#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                                                                                                        • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                                                                                                                                                        • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                                                                                                        • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                                                                                                          • ActsAsTaggableOn::Tagging._initialize_callbacks -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                            • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                    • ActsAsTaggableOn::Tagging#__run_callbacks__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:86
                                                                                                                                                                      • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:529
                                                                                                                                                                      • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:88
                                                                                                                                                            • ActiveRecord::Associations::JoinDependency#construct $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:236
                                                                                                                                                              • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:237
                                                                                                                                                              • ActsAsTaggableOn::Tagging#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                                                                                • ActsAsTaggableOn::Tagging#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                                                                                  • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                                                                                  • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                                                                                    • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                                                                                      • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                                                                                        • ActiveRecord::LazyAttributeHash#assign_default_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:94
                                                                                                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:95
                                                                                                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:97
                                                                                                                                                                          • ActiveRecord::Attribute.from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:4
                                                                                                                                                                            • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:5
                                                                                                                                                                              • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:29
                                                                                                                                                                    • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                                                                                      • ActiveRecord::Attribute::FromDatabase#original_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:41
                                                                                                                                                                        • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:103
                                                                                                                                                                          • ActiveRecord::Type::Integer#type_cast_from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:15
                                                                                                                                                                            • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:16
                                                                                                                                                                            • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:17
                                                                                                                                                              • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:240
                                                                                                                                                                • ActiveRecord::Associations::JoinDependency#block in construct $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:240
                                                                                                                                                                  • ActiveRecord::Reflection::BelongsToReflection#collection? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:424
                                                                                                                                                                  • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:245
                                                                                                                                                                  • ActiveRecord::Associations::JoinDependency::JoinAssociation#primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_part.rb:18
                                                                                                                                                                    • ActsAsTaggableOn::Tag.primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/primary_key.rb:72
                                                                                                                                                                  • ActiveRecord::Associations::JoinDependency::Aliases#column_alias $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:31
                                                                                                                                                                    • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:32
                                                                                                                                                                  • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:254
                                                                                                                                                                  • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:260
                                                                                                                                                                  • ActiveRecord::Associations::JoinDependency#block (2 levels) in instantiate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:136
                                                                                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:137
                                                                                                                                                                      • Hash#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:137
                                                                                                                                                                  • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:260
                                                                                                                                                                  • ActiveRecord::Associations::JoinDependency#block (3 levels) in instantiate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:137
                                                                                                                                                                    • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:137
                                                                                                                                                                  • ActiveRecord::Associations::JoinDependency#construct_model $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:272
                                                                                                                                                                    • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:273
                                                                                                                                                                    • ActiveRecord::Associations::JoinDependency::Aliases#column_aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:27
                                                                                                                                                                      • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:28
                                                                                                                                                                    • ActiveRecord::Associations::JoinDependency::JoinAssociation#instantiate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_part.rb:65
                                                                                                                                                                      • ActiveRecord::Associations::JoinDependency::JoinAssociation#extract_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency/join_part.rb:48
                                                                                                                                                                      • ActsAsTaggableOn::Tag.instantiate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:66
                                                                                                                                                                        • ActsAsTaggableOn::Tag.discriminate_class_for_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:167
                                                                                                                                                                          • ActsAsTaggableOn::Tag.using_single_table_inheritance? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:175
                                                                                                                                                                            • ActsAsTaggableOn::Tag.inheritance_column $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:186
                                                                                                                                                                              • Class#superclass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:187
                                                                                                                                                                              • ActiveRecord::Base.inheritance_column $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:186
                                                                                                                                                                            • NilClass#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                                                                                                                                              • NilClass#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:54
                                                                                                                                                                          • ActsAsTaggableOn::Tag.discriminate_class_for_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:78
                                                                                                                                                                        • ActsAsTaggableOn::Tag.attributes_builder $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:233
                                                                                                                                                                        • ActiveRecord::AttributeSet::Builder#build_from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:13
                                                                                                                                                                          • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:14
                                                                                                                                                                          • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:18
                                                                                                                                                                            • ActiveRecord::LazyAttributeHash#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:27
                                                                                                                                                                          • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:19
                                                                                                                                                                            • ActiveRecord::AttributeSet#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:5
                                                                                                                                                                        • ActsAsTaggableOn::Tag.allocate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:112
                                                                                                                                                                          • ActsAsTaggableOn::Tag.define_attribute_methods $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:79
                                                                                                                                                                          • Class#allocate $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:114
                                                                                                                                                                        • ActsAsTaggableOn::Tag#init_with $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:301
                                                                                                                                                                          • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:302
                                                                                                                                                                          • ActiveRecord::LegacyYamlAdapter.convert $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/legacy_yaml_adapter.rb:3
                                                                                                                                                                            • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/legacy_yaml_adapter.rb:4
                                                                                                                                                                          • ActsAsTaggableOn::Tag#init_internals $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:547
                                                                                                                                                                          • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:309
                                                                                                                                                                          • ActsAsTaggableOn::Tag.define_attribute_methods $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:79
                                                                                                                                                                          • ActsAsTaggableOn::Tag#_run_find_callbacks $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:777
                                                                                                                                                                            • ActsAsTaggableOn::Tag#_find_callbacks -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                                                                                                              • ActsAsTaggableOn::Tag#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                                                                                                                • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                                                                                                                                                                • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                                                                                                                • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                                                                                                                  • ActsAsTaggableOn::Tag._find_callbacks -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                                    • ActsAsTaggableOn::Tag.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                            • ActsAsTaggableOn::Tag#__run_callbacks__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:86
                                                                                                                                                                              • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:529
                                                                                                                                                                              • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:88
                                                                                                                                                                          • ActsAsTaggableOn::Tag#_run_initialize_callbacks $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:777
                                                                                                                                                                            • ActsAsTaggableOn::Tag#_initialize_callbacks -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                                                                                                              • ActsAsTaggableOn::Tag#block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:106
                                                                                                                                                                                • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:107
                                                                                                                                                                                • Kernel#class $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                                                                                                                • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:110
                                                                                                                                                                                  • ActsAsTaggableOn::Tag._initialize_callbacks -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                                    • ActsAsTaggableOn::Tag.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                            • ActsAsTaggableOn::Tag#__run_callbacks__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:86
                                                                                                                                                                              • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:529
                                                                                                                                                                              • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/callbacks.rb:88
                                                                                                                                                                    • ActsAsTaggableOn::Tagging#association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:157
                                                                                                                                                                      • ActsAsTaggableOn::Tagging#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:160
                                                                                                                                                                      • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:161
                                                                                                                                                                      • ActsAsTaggableOn::Tagging._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                                                                                        • ActsAsTaggableOn::Tagging._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                          • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                                        • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                                                                                                      • ActiveRecord::Reflection::BelongsToReflection#association_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:447
                                                                                                                                                                        • ActiveRecord::Reflection::BelongsToReflection#macro $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:610
                                                                                                                                                                        • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:470
                                                                                                                                                                      • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:162
                                                                                                                                                                        • ActiveRecord::Associations::BelongsToAssociation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:24
                                                                                                                                                                          • ActiveRecord::Reflection::BelongsToReflection#check_validity! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:354
                                                                                                                                                                            • ActiveRecord::Reflection::BelongsToReflection#check_validity_of_inverse! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:181
                                                                                                                                                                              • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:470
                                                                                                                                                                              • ActiveRecord::Reflection::BelongsToReflection#has_inverse? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:402
                                                                                                                                                                                • ActiveRecord::Reflection::BelongsToReflection#inverse_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:499
                                                                                                                                                                                  • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:500
                                                                                                                                                                                    • ActiveRecord::Reflection::BelongsToReflection#block in inverse_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:500
                                                                                                                                                                          • ActiveRecord::Associations::BelongsToAssociation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/belongs_to_association.rb:25
                                                                                                                                                                            • ActiveRecord::Associations::BelongsToAssociation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:42
                                                                                                                                                                          • ActiveRecord::Associations::BelongsToAssociation#reset_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:101
                                                                                                                                                                      • ActsAsTaggableOn::Tagging#association_instance_set $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:176
                                                                                                                                                                    • ActiveRecord::Reflection::BelongsToReflection#collection? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:424
                                                                                                                                                                    • ActiveRecord::Associations::BelongsToAssociation#target= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:80
                                                                                                                                                                      • ActiveRecord::Associations::BelongsToAssociation#loaded! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:63
                                                                                                                                                                        • ActiveRecord::Associations::BelongsToAssociation#stale_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/belongs_to_association.rb:109
                                                                                                                                                                          • ActiveRecord::Reflection::BelongsToReflection#foreign_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:329
                                                                                                                                                                          • ActsAsTaggableOn::Tagging#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                                                                                            • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                                                                                            • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                                                                                              • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                                                                                                • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                                                                                                  • ActiveRecord::LazyAttributeHash#assign_default_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:94
                                                                                                                                                                                    • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:95
                                                                                                                                                                                    • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:97
                                                                                                                                                                                    • ActiveRecord::Attribute.from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:4
                                                                                                                                                                                      • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:5
                                                                                                                                                                                        • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:29
                                                                                                                                                                              • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                                                                                                • ActiveRecord::Attribute::FromDatabase#original_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:41
                                                                                                                                                                                  • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:103
                                                                                                                                                                                    • ActiveRecord::Type::Integer#type_cast_from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:15
                                                                                                                                                                                      • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:16
                                                                                                                                                                                      • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:17
                                                                                                                                                                          • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                            • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                                                                                              • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                                                                                                    • ActiveRecord::Associations::BelongsToAssociation#set_inverse_instance $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:106
                                                                                                                                                                      • ActiveRecord::Associations::BelongsToAssociation#invertible_for? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/belongs_to_association.rb:96
                                                                                                                                                                        • ActiveRecord::Associations::BelongsToAssociation#inverse_reflection_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:226
                                                                                                                                                                          • ActiveRecord::Reflection::BelongsToReflection#inverse_of $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:175
                                                                                                                                                                            • ActiveRecord::Reflection::BelongsToReflection#inverse_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:499
                                                                                                                                                                              • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:500
                                                                                                                                                                                • ActiveRecord::Reflection::BelongsToReflection#block in inverse_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:500
                                                                                                                                                                  • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:266
                                                                                                                                                                  • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:266
                                                                                                                                                                  • ActiveRecord::Associations::JoinDependency#construct $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:236
                                                                                                                                                                    • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:237
                                                                                                                                                                    • ActsAsTaggableOn::Tag#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                                                                                      • ActsAsTaggableOn::Tag#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                                                                                              • ActiveRecord::LazyAttributeHash#assign_default_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:94
                                                                                                                                                                                • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:95
                                                                                                                                                                                • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:97
                                                                                                                                                                                • ActiveRecord::Attribute.from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:4
                                                                                                                                                                                  • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:5
                                                                                                                                                                                    • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:29
                                                                                                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                                                                                            • ActiveRecord::Attribute::FromDatabase#original_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:41
                                                                                                                                                                              • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:103
                                                                                                                                                                                • ActiveRecord::Type::Integer#type_cast_from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:15
                                                                                                                                                                                  • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:16
                                                                                                                                                                                  • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:17
                                                                                                                                                                    • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:240
                                                                                                                                                  • ActiveSupport::Notifications::Instrumenter#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:35
                                                                                                                                                    • ActiveSupport::Notifications::Fanout#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:45
                                                                                                                                                      • ActiveSupport::Notifications::Fanout#listeners_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:53
                                                                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                      • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:46
                                                                                                                                                • Hash#values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/join_dependency.rb:160
                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#preload_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#eager_loading? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:584
                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#build_preloader $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:654
                                                                                                                                              • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:655
                                                                                                                                                • BasicObject#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:655
                                                                                                                                            • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:644
                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#readonly_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                                      • Array#to_ary $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:46
                                                                                                                            • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:119
                                                                                                                              • ActiveRecord::Associations::Preloader::HasMany#block in load_slices $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:119
                                                                                                                                • ActiveRecord::Associations::Preloader::HasMany#association_key_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/has_many.rb:6
                                                                                                                                  • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:329
                                                                                                                                • ActsAsTaggableOn::Tagging#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:354
                                                                                                                                  • ActsAsTaggableOn::Tagging#read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:84
                                                                                                                                    • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:85
                                                                                                                                    • ActsAsTaggableOn::Tagging#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                                                      • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                                                            • ActiveRecord::LazyAttributeHash#assign_default_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:94
                                                                                                                                              • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:95
                                                                                                                                              • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:97
                                                                                                                                              • ActiveRecord::Attribute.from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:4
                                                                                                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:5
                                                                                                                                                  • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:29
                                                                                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                                                          • ActiveRecord::Attribute::FromDatabase#original_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:41
                                                                                                                                            • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:103
                                                                                                                                              • ActiveRecord::Type::Integer#type_cast_from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:15
                                                                                                                                                • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:16
                                                                                                                                                • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:17
                                                                                                                                • ActiveRecord::Associations::Preloader::HasMany#key_conversion_required? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:102
                                                                                                                                  • ActiveRecord::Associations::Preloader::HasMany#association_key_type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:106
                                                                                                                                    • ActiveRecord::Associations::Preloader::HasMany#association_key_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/has_many.rb:6
                                                                                                                                      • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:329
                                                                                                                                    • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:107
                                                                                                                                    • ActsAsTaggableOn::Tagging.type_for_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:243
                                                                                                                                      • ActsAsTaggableOn::Tagging.column_types $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:237
                                                                                                                                    • ActiveRecord::Type::Integer#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:11
                                                                                                                                  • ActiveRecord::Associations::Preloader::HasMany#owner_key_type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:110
                                                                                                                                    • ActiveRecord::Associations::Preloader::HasMany#owner_key_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/has_many.rb:10
                                                                                                                                      • ActiveRecord::Reflection::HasManyReflection#active_record_primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:342
                                                                                                                                    • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:111
                                                                                                                                    • Book.type_for_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:243
                                                                                                                                      • Book.column_types $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:237
                                                                                                                                    • ActiveRecord::Type::Integer#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:11
                                                                                                                              • ActiveRecord::Associations::Preloader::HasMany#block in load_slices $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:119
                                                                                                                                • ActiveRecord::Associations::Preloader::HasMany#association_key_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/has_many.rb:6
                                                                                                                                  • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:329
                                                                                                                                • ActsAsTaggableOn::Tagging#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:354
                                                                                                                                  • ActsAsTaggableOn::Tagging#read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:84
                                                                                                                                    • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:85
                                                                                                                                    • ActsAsTaggableOn::Tagging#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                                                      • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                                                            • ActiveRecord::LazyAttributeHash#assign_default_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:94
                                                                                                                                              • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:95
                                                                                                                                              • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:97
                                                                                                                                              • ActiveRecord::Attribute.from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:4
                                                                                                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:5
                                                                                                                                                  • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:29
                                                                                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                                                          • ActiveRecord::Attribute::FromDatabase#original_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:41
                                                                                                                                            • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:103
                                                                                                                                              • ActiveRecord::Type::Integer#type_cast_from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:15
                                                                                                                                                • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:16
                                                                                                                                                • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:17
                                                                                                                                • ActiveRecord::Associations::Preloader::HasMany#key_conversion_required? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:102
                                                                                                                                  • ActiveRecord::Associations::Preloader::HasMany#association_key_type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:106
                                                                                                                                    • ActiveRecord::Associations::Preloader::HasMany#association_key_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/has_many.rb:6
                                                                                                                                      • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:329
                                                                                                                                    • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:107
                                                                                                                                    • ActsAsTaggableOn::Tagging.type_for_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:243
                                                                                                                                      • ActsAsTaggableOn::Tagging.column_types $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:237
                                                                                                                                    • ActiveRecord::Type::Integer#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:11
                                                                                                                                  • ActiveRecord::Associations::Preloader::HasMany#owner_key_type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:110
                                                                                                                                    • ActiveRecord::Associations::Preloader::HasMany#owner_key_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/has_many.rb:10
                                                                                                                                      • ActiveRecord::Reflection::HasManyReflection#active_record_primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:342
                                                                                                                                    • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:111
                                                                                                                                    • Book.type_for_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:243
                                                                                                                                      • Book.column_types $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:237
                                                                                                                                    • ActiveRecord::Type::Integer#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:11
                                                                                                                          • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:92
                                                                                                                            • ActiveRecord::Associations::Preloader::HasMany#block in associated_records_by_owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:92
                                                                                                                              • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:93
                                                                                                                                • ActiveRecord::Associations::Preloader::HasMany#block (2 levels) in associated_records_by_owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:93
                                                                                                                                  • Book#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:398
                                                                                                                                    • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                                                      • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                                                    • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                                                      • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                                                    • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:400
                                                                                                                            • ActiveRecord::Associations::Preloader::HasMany#block in associated_records_by_owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:92
                                                                                                                              • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:93
                                                                                                                                • ActiveRecord::Associations::Preloader::HasMany#block (2 levels) in associated_records_by_owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:93
                                                                                                                                  • Book#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:398
                                                                                                                                    • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                                                      • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                                                    • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                                                      • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                                                    • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:400
                                                                                                                        • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/collection_association.rb:13
                                                                                                                          • ActiveRecord::Associations::Preloader::HasMany#block in preload $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/collection_association.rb:13
                                                                                                                            • Book#association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:157
                                                                                                                              • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                                                                              • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:160
                                                                                                                            • ActiveRecord::Associations::HasManyAssociation#loaded! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:63
                                                                                                                              • ActiveRecord::Associations::HasManyAssociation#stale_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:246
                                                                                                                            • Array#concat $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/collection_association.rb:16
                                                                                                                            • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/collection_association.rb:17
                                                                                                                              • ActiveRecord::Associations::Preloader::HasMany#block (2 levels) in preload $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/collection_association.rb:17
                                                                                                                                • ActiveRecord::Associations::HasManyAssociation#set_inverse_instance $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:106
                                                                                                                                  • ActiveRecord::Associations::HasManyAssociation#invertible_for? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:232
                                                                                                                                    • ActiveRecord::Associations::HasManyAssociation#foreign_key_for? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:237
                                                                                                                                      • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:329
                                                                                                                                      • ActsAsTaggableOn::Tagging#has_attribute? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:259
                                                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:260
                                                                                                                                        • ActiveRecord::AttributeSet#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:22
                                                                                                                                          • ActiveRecord::LazyAttributeHash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:35
                                                                                                                                            • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:36
                                                                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                                                          • ActiveRecord::Attribute::FromDatabase#initialized? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:73
                                                                                                                                    • ActiveRecord::Associations::HasManyAssociation#inverse_reflection_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:226
                                                                                                                                      • ActiveRecord::Reflection::HasManyReflection#inverse_of $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:175
                                                                                                                                        • ActiveRecord::Reflection::HasManyReflection#inverse_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:499
                                                                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:500
                                                                                                                                            • ActiveRecord::Reflection::HasManyReflection#block in inverse_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:500
                                                                                                                              • ActiveRecord::Associations::Preloader::HasMany#block (2 levels) in preload $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/collection_association.rb:17
                                                                                                                                • ActiveRecord::Associations::HasManyAssociation#set_inverse_instance $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:106
                                                                                                                                  • ActiveRecord::Associations::HasManyAssociation#invertible_for? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:232
                                                                                                                                    • ActiveRecord::Associations::HasManyAssociation#foreign_key_for? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:237
                                                                                                                                      • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:329
                                                                                                                                      • ActsAsTaggableOn::Tagging#has_attribute? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:259
                                                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:260
                                                                                                                                        • ActiveRecord::AttributeSet#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:22
                                                                                                                                          • ActiveRecord::LazyAttributeHash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:35
                                                                                                                                            • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:36
                                                                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                                                          • ActiveRecord::Attribute::FromDatabase#initialized? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:73
                                                                                                                                    • ActiveRecord::Associations::HasManyAssociation#inverse_reflection_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:226
                                                                                                                                      • ActiveRecord::Reflection::HasManyReflection#inverse_of $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:175
                                                                                                                                        • ActiveRecord::Reflection::HasManyReflection#inverse_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:499
                                                                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:500
                                                                                                                                            • ActiveRecord::Reflection::HasManyReflection#block in inverse_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:500
                                                                                                                          • ActiveRecord::Associations::Preloader::HasMany#block in preload $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/collection_association.rb:13
                                                                                                                            • Book#association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:157
                                                                                                                              • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                                                                              • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:160
                                                                                                                            • ActiveRecord::Associations::HasManyAssociation#loaded! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:63
                                                                                                                              • ActiveRecord::Associations::HasManyAssociation#stale_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:246
                                                                                                                            • Array#concat $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/collection_association.rb:16
                                                                                                                            • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/collection_association.rb:17
                                                                                            • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:18
                                                                                              • ActiveRecord::Associations::Preloader::HasManyThrough#block in associated_records_by_owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:18
                                                                                                • ActiveRecord::Associations::Preloader::HasManyThrough#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:5
                                                                                                  • ActiveRecord::Reflection::ThroughReflection#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:686
                                                                                                    • ActiveRecord::Reflection::ThroughReflection#active_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                    • ActiveRecord::Reflection::ThroughReflection#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                    • Book._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                      • Book._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                        • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                      • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                                • Book#association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:157
                                                                                                  • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                                                  • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:160
                                                                                                • ActiveRecord::Associations::HasManyAssociation#reader $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_association.rb:29
                                                                                                  • ActiveRecord::Associations::HasManyAssociation#stale_target? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:75
                                                                                                    • ActiveRecord::Associations::HasManyAssociation#loaded? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:58
                                                                                                    • ActiveRecord::Associations::HasManyAssociation#stale_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:246
                                                                                                  • Book#new_record? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:85
                                                                                                    • Book#sync_with_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:515
                                                                                                      • Book#update_attributes_from_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:519
                                                                                                  • ActiveRecord::Associations::HasManyAssociation#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:117
                                                                                                    • ActiveRecord::Reflection::HasManyReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                  • ActiveRecord::Associations::CollectionProxy.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                    • ActiveRecord::Associations::CollectionProxy.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                      • ActsAsTaggableOn::Tagging.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                        • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_proxy.rb:34
                                                                                                        • ActsAsTaggableOn::Tagging.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                        • ActiveRecord::Associations::HasManyAssociation#scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_association.rb:433
                                                                                                          • ActiveRecord::Associations::HasManyAssociation#scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:85
                                                                                                            • ActiveRecord::Associations::HasManyAssociation#target_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:123
                                                                                                              • ActiveRecord::Associations::HasManyAssociation#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:117
                                                                                                                • ActiveRecord::Reflection::HasManyReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                              • ActiveRecord::Associations::HasManyAssociation#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:117
                                                                                                                • ActiveRecord::Reflection::HasManyReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                              • ActsAsTaggableOn::Tagging.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                              • ActiveRecord::AssociationRelation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                                • ActiveRecord::AssociationRelation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                                  • ActsAsTaggableOn::Tagging.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                                    • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/association_relation.rb:3
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                              • ActiveRecord::Associations::HasManyAssociation#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:117
                                                                                                                • ActiveRecord::Reflection::HasManyReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                              • ActsAsTaggableOn::Tagging.all $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/named.rb:24
                                                                                                                • ActsAsTaggableOn::Tagging.current_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:13
                                                                                                                  • ActsAsTaggableOn::Tagging.base_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:100
                                                                                                                    • Module#< $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:101
                                                                                                                    • Class#superclass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:105
                                                                                                                  • Module#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:14
                                                                                                                  • ActiveRecord::Scoping::ScopeRegistry.value_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:50
                                                                                                                    • ActiveRecord::Scoping::ScopeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                      • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                      • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                    • ActiveRecord::Scoping::ScopeRegistry#value_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:67
                                                                                                                      • ActiveRecord::Scoping::ScopeRegistry#raise_invalid_scope_type! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:80
                                                                                                                        • Array#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:81
                                                                                                                • ActsAsTaggableOn::Tagging.default_scoped $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/named.rb:32
                                                                                                                  • ActsAsTaggableOn::Tagging.relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:253
                                                                                                                    • ActsAsTaggableOn::Tagging.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                                    • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                                      • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                                        • ActsAsTaggableOn::Tagging.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                                          • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                                      • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                                    • ActsAsTaggableOn::Tagging.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                                                  • ActsAsTaggableOn::Tagging.relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:253
                                                                                                                    • ActsAsTaggableOn::Tagging.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                                    • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                                      • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                                        • ActsAsTaggableOn::Tagging.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                                          • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                                      • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                                    • ActsAsTaggableOn::Tagging.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                                                  • ActsAsTaggableOn::Tagging.build_default_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:97
                                                                                                                    • ActsAsTaggableOn::Tagging.abstract_class? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:130
                                                                                                                    • Kernel#method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:99
                                                                                                                    • Method#owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:99
                                                                                                                    • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:99
                                                                                                                    • ActsAsTaggableOn::Tagging.default_scopes -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                      • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                    • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:102
                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:30
                                                                                                                    • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:31
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#merge! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:40
                                                                                                                • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:41
                                                                                                                • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:43
                                                                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:44
                                                                                                                  • ActiveRecord::Relation::Merger#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:46
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:625
                                                                                                                      • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:626
                                                                                                                • ActiveRecord::Relation::Merger#merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:61
                                                                                                                  • ActiveRecord::Relation::Merger#normal_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:57
                                                                                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                  • ActiveRecord::Relation::Merger#merge_multi_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:132
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActiveRecord::Relation::Merger#partition_overwrites $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:177
                                                                                                                    • ActiveRecord::Relation::Merger#filter_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:167
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#reordering_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#order! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:322
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#preprocess_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1119
                                                                                                                        • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1120
                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#validate_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1109
                                                                                                                          • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1110
                                                                                                                        • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                          • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                        • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                        • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                        • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1125
                                                                                                                        • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1128
                                                                                                                        • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1141
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#order_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#extending_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:155
                                                                                                                  • ActiveRecord::Relation::Merger#merge_single_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:158
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#from_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#lock_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#create_with_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:105
                                                                                                                    • Hash#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:162
                                                                                                                  • ActiveRecord::Relation::Merger#merge_preloads $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:87
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#preload_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                  • ActiveRecord::Relation::Merger#merge_joins $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:108
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:109
                                                                                                            • ActiveRecord::Associations::HasManyAssociation#association_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:95
                                                                                                              • ActiveRecord::Associations::HasManyAssociation#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:117
                                                                                                                • ActiveRecord::Reflection::HasManyReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                              • ActiveRecord::Associations::HasManyAssociation#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:117
                                                                                                                • ActiveRecord::Reflection::HasManyReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                              • ActsAsTaggableOn::Tagging.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                                                                                                • ActsAsTaggableOn::Tagging.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                                                                                                  • ActsAsTaggableOn::Tagging.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                                                                                    • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                      • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                        • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                        • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                    • ActsAsTaggableOn::Tagging.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                      • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                  • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                                                                                                    • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                                                                                      • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                                                                                        • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                      • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                    • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                                                                                                      • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                                                                                                        • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                                                                                                          • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                            • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                              • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                              • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                              • ActiveRecord::Associations::AssociationScope.scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:4
                                                                                                                • ActiveRecord::Associations::AssociationScope#scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:31
                                                                                                                  • ActiveRecord::Associations::HasManyAssociation#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:117
                                                                                                                    • ActiveRecord::Reflection::HasManyReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                                  • ActsAsTaggableOn::Tagging.unscoped $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:32
                                                                                                                    • Kernel#block_given? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:33
                                                                                                                    • ActsAsTaggableOn::Tagging.relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:253
                                                                                                                      • ActsAsTaggableOn::Tagging.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                                      • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                                        • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                                          • ActsAsTaggableOn::Tagging.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                                            • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                                        • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                                      • ActsAsTaggableOn::Tagging.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                                                  • ActiveRecord::Associations::AliasTracker.empty $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:10
                                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:11
                                                                                                                      • Hash#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:11
                                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:11
                                                                                                                      • ActiveRecord::Associations::AliasTracker#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:54
                                                                                                                  • Kernel#Array $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:38
                                                                                                                    • NilClass#to_a $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:38
                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#extending! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:832
                                                                                                                    • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:834
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#extending_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#extending_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#extending_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:837
                                                                                                                  • ActiveRecord::Associations::AssociationScope#add_constraints $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:131
                                                                                                                    • ActiveRecord::Reflection::HasManyReflection#chain $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:388
                                                                                                                    • ActiveRecord::Reflection::HasManyReflection#scope_chain $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:398
                                                                                                                    • ActiveRecord::Associations::AssociationScope#construct_tables $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:65
                                                                                                                      • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:66
                                                                                                                        • ActiveRecord::Associations::AssociationScope#block in construct_tables $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:66
                                                                                                                          • ActiveRecord::Associations::AssociationScope#table_name_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:179
                                                                                                                            • ActiveRecord::Reflection::HasManyReflection#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:251
                                                                                                                              • BasicObject#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:252
                                                                                                                            • ActsAsTaggableOn::Tagging.table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:125
                                                                                                                          • BasicObject#!= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:69
                                                                                                                            • ActiveRecord::Reflection::HasManyReflection#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:251
                                                                                                                              • BasicObject#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:252
                                                                                                                          • ActiveRecord::Associations::AssociationScope#table_alias_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:74
                                                                                                                            • ActiveRecord::Associations::AssociationScope#alias_suffix $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:175
                                                                                                                            • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:75
                                                                                                                          • ActiveRecord::Associations::AliasTracker#aliased_table_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:59
                                                                                                                            • Numeric#zero? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:60
                                                                                                                            • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:63
                                                                                                                              • Arel::Table#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:14
                                                                                                                                • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:15
                                                                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:22
                                                                                                                    • Array#last $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:137
                                                                                                                    • Array#last $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:138
                                                                                                                    • ActiveRecord::Associations::AssociationScope#last_chain_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:98
                                                                                                                      • ActiveRecord::Reflection::HasManyReflection#join_keys $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:162
                                                                                                                        • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:329
                                                                                                                        • ActiveRecord::Reflection::HasManyReflection#active_record_primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:342
                                                                                                                        • #<Class:ActiveRecord::Reflection::AbstractReflection::JoinKeys>#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:163
                                                                                                                          • Struct#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:163
                                                                                                                      • ActiveRecord::Reflection::AbstractReflection::JoinKeys#key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:100
                                                                                                                      • ActiveRecord::Reflection::AbstractReflection::JoinKeys#foreign_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:101
                                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:103
                                                                                                                      • Book#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:354
                                                                                                                        • Book#read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:84
                                                                                                                          • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:85
                                                                                                                          • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:86
                                                                                                                          • Book.primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/primary_key.rb:72
                                                                                                                          • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                                            • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                                            • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                                              • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                                                • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                                              • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                                      • ActiveRecord::Associations::AssociationScope#bind $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:93
                                                                                                                        • ActiveRecord::Associations::AssociationScope#column_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:84
                                                                                                                          • ActiveRecord::ConnectionAdapters::SchemaCache#columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:48
                                                                                                                        • ActiveRecord::Associations::AssociationScope#bind_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:89
                                                                                                                          • ActiveRecord::Associations::AssociationScope::BindSubstitution#bind_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:13
                                                                                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#substitute_at $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:280
                                                                                                                              • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:281
                                                                                                                                • BasicObject#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:281
                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                            • ActiveRecord::Associations::AssociationScope.block in create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:21
                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                      • Arel::Table#[] $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:99
                                                                                                                        • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                                          • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                                      • Arel::Attributes::Attribute#eq $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:15
                                                                                                                        • Arel::Attributes::Attribute#quoted_node $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:207
                                                                                                                          • Arel::Nodes.build_quoted $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:81
                                                                                                                            • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                        • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:16
                                                                                                                          • Arel::Nodes::Equality#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                            • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:568
                                                                                                                        • Arel::Nodes::Equality#eql? $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:22
                                                                                                                          • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                                                                          • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                                                                        • Arel::Nodes::Equality#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:16
                                                                                                                          • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:17
                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                                          • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                            • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                                                • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                                                • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                  • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                    • Array#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:578
                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:579
                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#build_where $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:947
                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:949
                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:949
                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:951
                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                      • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:107
                                                                                                                      • Book.base_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:100
                                                                                                                        • Module#< $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:101
                                                                                                                        • Class#superclass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:105
                                                                                                                      • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:107
                                                                                                                      • ActiveRecord::Associations::AssociationScope#bind $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:93
                                                                                                                        • ActiveRecord::Associations::AssociationScope#column_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:84
                                                                                                                          • ActiveRecord::ConnectionAdapters::SchemaCache#columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:48
                                                                                                                        • ActiveRecord::Associations::AssociationScope#bind_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:89
                                                                                                                          • ActiveRecord::Associations::AssociationScope::BindSubstitution#bind_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:13
                                                                                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#substitute_at $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:280
                                                                                                                              • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:281
                                                                                                                                • BasicObject#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:281
                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                            • ActiveRecord::Associations::AssociationScope.block in create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:21
                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                      • Arel::Table#[] $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:99
                                                                                                                        • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                                          • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                                      • Arel::Attributes::Attribute#eq $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:15
                                                                                                                        • Arel::Attributes::Attribute#quoted_node $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:207
                                                                                                                          • Arel::Nodes.build_quoted $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:81
                                                                                                                            • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                        • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:16
                                                                                                                          • Arel::Nodes::Equality#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                            • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:568
                                                                                                                        • Arel::Nodes::Equality#eql? $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:22
                                                                                                                          • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                                                                          • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                                                                        • Arel::Nodes::Equality#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:16
                                                                                                                          • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:17
                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                                          • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                            • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                                                • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                                                • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                  • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                    • Array#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:578
                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:579
                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#build_where $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:947
                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:949
                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:949
                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:951
                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                    • Enumerable#each_with_index $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:141
                                                                                                                      • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:141
                                                                                                                        • ActiveRecord::Associations::AssociationScope#block in add_constraints $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:141
                                                                                                                          • Array#shift $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:142
                                                                                                                          • Array#first $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:142
                                                                                                                          • Array#last $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:144
                                                                                                                          • ActiveRecord::Reflection::HasManyReflection#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:251
                                                                                                                            • BasicObject#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:252
                                                                                                                          • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:154
                                                                                                                            • ActiveRecord::Associations::AssociationScope#block (2 levels) in add_constraints $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:154
                                                                                                                              • ActiveRecord::Associations::AssociationScope#eval_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:190
                                                                                                                                • ActsAsTaggableOn::Tagging.unscoped $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:32
                                                                                                                                  • Kernel#block_given? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:33
                                                                                                                                  • ActsAsTaggableOn::Tagging.relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:253
                                                                                                                                    • ActsAsTaggableOn::Tagging.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                                                    • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                                                      • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                                                        • ActsAsTaggableOn::Tagging.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                                                          • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                                                      • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                                                    • ActsAsTaggableOn::Tagging.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                                                                • BasicObject#instance_exec $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:191
                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/builder/association.rb:65
                                                                                                                                    • BasicObject#instance_exec $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/builder/association.rb:65
                                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block (3 levels) in initialize_acts_as_taggable_on_core $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:28
                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:144
                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_if_method_has_arguments! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1160
                                                                                                                                            • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1161
                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                                                            • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                                              • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                                                                  • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                                                                  • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:149
                                                                                                                                            • Array#reject! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:150
                                                                                                                                              • Symbol#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:16
                                                                                                                                                • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:17
                                                                                                                                                • Symbol#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:17
                                                                                                                                            • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:151
                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                            • Array#| $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:153
                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:317
                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_if_method_has_arguments! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1160
                                                                                                                                            • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1161
                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                                                            • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                                              • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                                                                  • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                                                                  • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:322
                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#preprocess_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1119
                                                                                                                                              • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1120
                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#validate_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1109
                                                                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1110
                                                                                                                                              • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                                              • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                                              • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                                              • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1125
                                                                                                                                              • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1128
                                                                                                                                              • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1141
                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:568
                                                                                                                                          • Hash#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:569
                                                                                                                                          • Hash#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:571
                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                                                            • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                                              • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                                                                  • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                                                                  • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:578
                                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:579
                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#sanitize_for_mass_assignment $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/forbidden_attributes_protection.rb:19
                                                                                                                                              • Kernel#respond_to? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/forbidden_attributes_protection.rb:20
                                                                                                                                            • ActiveRecord::PredicateBuilder.references $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:91
                                                                                                                                              • Enumerable#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:92
                                                                                                                                                • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:92
                                                                                                                                                  • ActiveRecord::PredicateBuilder.block in references $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:92
                                                                                                                                                    • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:93
                                                                                                                                                    • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:96
                                                                                                                                                    • String#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:97
                                                                                                                                              • Array#compact $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:99
                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#references! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:202
                                                                                                                                              • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:203
                                                                                                                                              • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:204
                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#references_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                              • Array#| $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:206
                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#references_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#build_where $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:947
                                                                                                                                              • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:949
                                                                                                                                              • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:949
                                                                                                                                              • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:951
                                                                                                                                              • ActiveRecord::PredicateBuilder.resolve_column_aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:8
                                                                                                                                                • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:11
                                                                                                                                                • Hash#keys $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:12
                                                                                                                                                • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:12
                                                                                                                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:12
                                                                                                                                                    • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:12
                                                                                                                                                    • ActiveRecord::PredicateBuilder.block in resolve_column_aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:12
                                                                                                                                                      • ActsAsTaggableOn::Tagging.attribute_alias? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:218
                                                                                                                                                        • ActsAsTaggableOn::Tagging.attribute_aliases -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                          • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                        • Symbol#to_s $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                        • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#create_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:966
                                                                                                                                                • Enumerable#partition $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:967
                                                                                                                                                  • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:967
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in create_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:967
                                                                                                                                                      • ActiveRecord::PredicateBuilder.can_be_bound? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:149
                                                                                                                                                        • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:150
                                                                                                                                                        • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:151
                                                                                                                                                        • ActiveRecord::PredicateBuilder.handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:131
                                                                                                                                                          • Enumerable#detect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                            • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                • ActiveRecord::Base.=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:228
                                                                                                                                                                  • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:229
                                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                          • Array#last $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                      • ActsAsTaggableOn::Tagging.columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attributes.rb:97
                                                                                                                                                      • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:969
                                                                                                                                                      • Hash#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:969
                                                                                                                                                      • ActsAsTaggableOn::Tagging.reflect_on_aggregation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:61
                                                                                                                                                        • ActsAsTaggableOn::Tagging.aggregate_reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                          • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                        • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:62
                                                                                                                                                • Enumerable#partition $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:973
                                                                                                                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:973
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:48
                                                                                                                                                  • ActsAsTaggableOn::Tagging.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                                                                                                                                    • ActsAsTaggableOn::Tagging.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                                                                                                                                      • ActsAsTaggableOn::Tagging.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                                                                                                                        • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                                                          • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                                            • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                            • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                        • ActsAsTaggableOn::Tagging.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                          • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                      • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                                                                                                                                        • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                                                                                                                          • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                                                                                                                            • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                                                                                                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                          • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                                                                                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                        • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                                                                                                                                          • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                                                                                                                                            • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                                                                                                                                              • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                                                                • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                                                  • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                  • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:982
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in create_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:982
                                                                                                                                                    • ActsAsTaggableOn::Tagging.columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attributes.rb:97
                                                                                                                                                    • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:983
                                                                                                                                                    • Array#push $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:983
                                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#substitute_at $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:280
                                                                                                                                                      • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:281
                                                                                                                                                        • BasicObject#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:281
                                                                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:987
                                                                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:994
                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                              • ActsAsTaggableOn::Tagging.expand_hash_conditions_for_aggregates $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/sanitization.rb:56
                                                                                                                                                • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/sanitization.rb:58
                                                                                                                                                  • ActsAsTaggableOn::Tagging.block in expand_hash_conditions_for_aggregates $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/sanitization.rb:58
                                                                                                                                                    • Symbol#to_sym $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/sanitization.rb:59
                                                                                                                                                    • ActsAsTaggableOn::Tagging.reflect_on_aggregation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:61
                                                                                                                                                      • ActsAsTaggableOn::Tagging.aggregate_reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                        • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                      • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:62
                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#add_relations_to_bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1166
                                                                                                                                                • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1167
                                                                                                                                                • Hash#each_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1168
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in add_relations_to_bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1168
                                                                                                                                                    • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1169
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#add_relations_to_bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1166
                                                                                                                                                      • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1167
                                                                                                                                              • ActiveRecord::PredicateBuilder.build_from_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:20
                                                                                                                                                • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:23
                                                                                                                                                  • ActiveRecord::PredicateBuilder.block in build_from_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:23
                                                                                                                                                    • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:26
                                                                                                                                                    • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:38
                                                                                                                                                    • String#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:40
                                                                                                                                                    • ActiveRecord::PredicateBuilder.expand $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:52
                                                                                                                                                      • ActsAsTaggableOn::Tagging._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                                                                        • ActsAsTaggableOn::Tagging._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                          • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                                                                                      • Arel::Table#[] $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:99
                                                                                                                                                        • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                                                                          • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                                                                      • ActiveRecord::PredicateBuilder.build $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:126
                                                                                                                                                        • ActiveRecord::PredicateBuilder.handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:131
                                                                                                                                                          • Enumerable#detect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                            • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                • ActiveRecord::Base.=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:228
                                                                                                                                                                  • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:229
                                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                          • Array#last $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                        • ActiveRecord::PredicateBuilder.block in <class:PredicateBuilder> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:117
                                                                                                                                                          • Arel::Attributes::Attribute#eq $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:15
                                                                                                                                                            • Arel::Attributes::Attribute#quoted_node $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:207
                                                                                                                                                              • Arel::Nodes.build_quoted $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:81
                                                                                                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                                                            • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:16
                                                                                                                                                              • Arel::Nodes::Equality#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                                                                • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                                                                    • Array#concat $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:45
                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#except $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:56
                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:625
                                                                                                                                  • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:626
                                                                                                                                • Hash#except $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:9
                                                                                                                                  • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:10
                                                                                                                                    • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:10
                                                                                                                                      • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:10
                                                                                                                                  • Hash#except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:17
                                                                                                                                    • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                                                      • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                                                        • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                                                      • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                                                        • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                                                      • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                                                        • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#relation_with $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:73
                                                                                                                                  • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                                                    • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                                                      • ActsAsTaggableOn::Tagging.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                                                        • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#extending_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                  • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:75
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#merge! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:40
                                                                                                                                • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:41
                                                                                                                                • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:43
                                                                                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:44
                                                                                                                                  • ActiveRecord::Relation::Merger#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:46
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:625
                                                                                                                                      • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:626
                                                                                                                                • ActiveRecord::Relation::Merger#merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:61
                                                                                                                                  • ActiveRecord::Relation::Merger#normal_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:57
                                                                                                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                      • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                      • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                  • ActiveRecord::Relation::Merger#merge_multi_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:132
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                    • ActiveRecord::Relation::Merger#partition_overwrites $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:177
                                                                                                                                    • ActiveRecord::Relation::Merger#filter_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:167
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#reordering_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:322
                                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#preprocess_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1119
                                                                                                                                        • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1120
                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#validate_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1109
                                                                                                                                          • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1110
                                                                                                                                        • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                                          • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                                        • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                                        • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                                        • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1125
                                                                                                                                        • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1128
                                                                                                                                        • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1141
                                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#extending_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                    • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:155
                                                                                                                                  • ActiveRecord::Relation::Merger#merge_single_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:158
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#from_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#lock_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#create_with_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:105
                                                                                                                                    • Hash#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:162
                                                                                                                                  • ActiveRecord::Relation::Merger#merge_preloads $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:87
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#preload_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                  • ActiveRecord::Relation::Merger#merge_joins $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:108
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                    • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:109
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:149
                                                                                                                                • Array#reject! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:150
                                                                                                                                  • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:150
                                                                                                                                • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:151
                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                • Array#| $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:153
                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#unscope_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#unscope! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:393
                                                                                                                                • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:394
                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#unscope_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#unscope_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:397
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                              • Array#| $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:168
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:30
                                                                                                              • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:31
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                                • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                  • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                                      • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                                      • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                      • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                        • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                          • Array#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#merge! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:40
                                                                                                                • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:41
                                                                                                                • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:43
                                                                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:44
                                                                                                                  • ActiveRecord::Relation::Merger#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:46
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:625
                                                                                                                      • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:626
                                                                                                                • ActiveRecord::Relation::Merger#merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:61
                                                                                                                  • ActiveRecord::Relation::Merger#normal_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:57
                                                                                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                      • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                      • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                  • ActiveRecord::Relation::Merger#merge_multi_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:132
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActiveRecord::Relation::Merger#partition_overwrites $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:177
                                                                                                                    • ActiveRecord::Relation::Merger#filter_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:167
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#reordering_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#order! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:322
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#preprocess_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1119
                                                                                                                        • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1120
                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#validate_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1109
                                                                                                                          • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1110
                                                                                                                        • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                          • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                        • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                        • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                        • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1125
                                                                                                                        • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1128
                                                                                                                        • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1141
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#order_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#extending_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:155
                                                                                                                  • ActiveRecord::Relation::Merger#merge_single_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:158
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#from_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#lock_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#create_with_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:105
                                                                                                                    • Hash#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:162
                                                                                                                  • ActiveRecord::Relation::Merger#merge_preloads $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:87
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#preload_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#preload_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#includes! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:149
                                                                                                                      • Array#reject! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:150
                                                                                                                        • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:150
                                                                                                                      • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:151
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                      • Array#| $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:153
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#includes_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                  • ActiveRecord::Relation::Merger#merge_joins $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:108
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:109
                                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_association.rb:435
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#merge! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:40
                                                                                                          • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:41
                                                                                                          • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:43
                                                                                                          • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:44
                                                                                                            • ActiveRecord::Relation::Merger#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:46
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:625
                                                                                                                • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:626
                                                                                                          • ActiveRecord::Relation::Merger#merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:61
                                                                                                            • ActiveRecord::Relation::Merger#normal_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:57
                                                                                                            • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                            • ActiveRecord::Relation::Merger#merge_multi_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:132
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActiveRecord::Relation::Merger#partition_overwrites $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:177
                                                                                                              • ActiveRecord::Relation::Merger#filter_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:167
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#reordering_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#order! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:322
                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#preprocess_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1119
                                                                                                                  • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1120
                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#validate_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1109
                                                                                                                    • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1110
                                                                                                                  • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                    • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                  • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                  • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                  • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1125
                                                                                                                  • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1128
                                                                                                                  • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1141
                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#order_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#extending_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:155
                                                                                                            • ActiveRecord::Relation::Merger#merge_single_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:158
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#from_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#lock_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#create_with_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:105
                                                                                                              • Hash#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:162
                                                                                                            • ActiveRecord::Relation::Merger#merge_preloads $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:87
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#preload_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#preload_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#includes! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:149
                                                                                                                • Array#reject! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:150
                                                                                                                  • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:150
                                                                                                                • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:151
                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                • Array#| $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:153
                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#includes_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                            • ActiveRecord::Relation::Merger#merge_joins $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:108
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:109
                                                                                                • Kernel#Array $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:21
                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:116
                                                                                                    • Kernel#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:117
                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#to_ary $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_proxy.rb:944
                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#load_target $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_proxy.rb:44
                                                                                                      • ActiveRecord::Associations::HasManyAssociation#load_target $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_association.rb:401
                                                                                                        • ActiveRecord::Associations::HasManyAssociation#find_target? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:175
                                                                                                          • ActiveRecord::Associations::HasManyAssociation#loaded? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:58
                                                                                                        • ActiveRecord::Associations::HasManyAssociation#loaded! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:63
                                                                                                          • ActiveRecord::Associations::HasManyAssociation#stale_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:246
                                                                                                    • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_proxy.rb:945
                                                                                                      • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_proxy.rb:945
                                                                                                        • Array#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_proxy.rb:945
                                                                                              • ActiveRecord::Associations::Preloader::HasManyThrough#block in associated_records_by_owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:18
                                                                                                • ActiveRecord::Associations::Preloader::HasManyThrough#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:5
                                                                                                  • ActiveRecord::Reflection::ThroughReflection#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:686
                                                                                                    • ActiveRecord::Reflection::ThroughReflection#active_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                    • ActiveRecord::Reflection::ThroughReflection#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                    • Book._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                      • Book._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                        • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                      • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                                • Book#association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:157
                                                                                                  • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                                                  • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:160
                                                                                                • ActiveRecord::Associations::HasManyAssociation#reader $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_association.rb:29
                                                                                                  • ActiveRecord::Associations::HasManyAssociation#stale_target? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:75
                                                                                                    • ActiveRecord::Associations::HasManyAssociation#loaded? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:58
                                                                                                    • ActiveRecord::Associations::HasManyAssociation#stale_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:246
                                                                                                  • Book#new_record? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:85
                                                                                                    • Book#sync_with_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:515
                                                                                                      • Book#update_attributes_from_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:519
                                                                                                  • ActiveRecord::Associations::HasManyAssociation#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:117
                                                                                                    • ActiveRecord::Reflection::HasManyReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                  • ActiveRecord::Associations::CollectionProxy.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                    • ActiveRecord::Associations::CollectionProxy.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                      • ActsAsTaggableOn::Tagging.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                        • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_proxy.rb:34
                                                                                                        • ActsAsTaggableOn::Tagging.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                        • ActiveRecord::Associations::HasManyAssociation#scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_association.rb:433
                                                                                                          • ActiveRecord::Associations::HasManyAssociation#scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:85
                                                                                                            • ActiveRecord::Associations::HasManyAssociation#target_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:123
                                                                                                              • ActiveRecord::Associations::HasManyAssociation#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:117
                                                                                                                • ActiveRecord::Reflection::HasManyReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                              • ActiveRecord::Associations::HasManyAssociation#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:117
                                                                                                                • ActiveRecord::Reflection::HasManyReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                              • ActsAsTaggableOn::Tagging.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                              • ActiveRecord::AssociationRelation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                                • ActiveRecord::AssociationRelation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                                  • ActsAsTaggableOn::Tagging.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                                    • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/association_relation.rb:3
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                              • ActiveRecord::Associations::HasManyAssociation#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:117
                                                                                                                • ActiveRecord::Reflection::HasManyReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                              • ActsAsTaggableOn::Tagging.all $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/named.rb:24
                                                                                                                • ActsAsTaggableOn::Tagging.current_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:13
                                                                                                                  • ActsAsTaggableOn::Tagging.base_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:100
                                                                                                                    • Module#< $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:101
                                                                                                                    • Class#superclass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:105
                                                                                                                  • Module#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:14
                                                                                                                  • ActiveRecord::Scoping::ScopeRegistry.value_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:50
                                                                                                                    • ActiveRecord::Scoping::ScopeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                      • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                      • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                    • ActiveRecord::Scoping::ScopeRegistry#value_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:67
                                                                                                                      • ActiveRecord::Scoping::ScopeRegistry#raise_invalid_scope_type! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:80
                                                                                                                        • Array#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:81
                                                                                                                • ActsAsTaggableOn::Tagging.default_scoped $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/named.rb:32
                                                                                                                  • ActsAsTaggableOn::Tagging.relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:253
                                                                                                                    • ActsAsTaggableOn::Tagging.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                                    • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                                      • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                                        • ActsAsTaggableOn::Tagging.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                                          • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                                      • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                                    • ActsAsTaggableOn::Tagging.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                                                  • ActsAsTaggableOn::Tagging.relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:253
                                                                                                                    • ActsAsTaggableOn::Tagging.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                                    • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                                      • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                                        • ActsAsTaggableOn::Tagging.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                                          • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                                      • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                                    • ActsAsTaggableOn::Tagging.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                                                  • ActsAsTaggableOn::Tagging.build_default_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:97
                                                                                                                    • ActsAsTaggableOn::Tagging.abstract_class? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:130
                                                                                                                    • Kernel#method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:99
                                                                                                                    • Method#owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:99
                                                                                                                    • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:99
                                                                                                                    • ActsAsTaggableOn::Tagging.default_scopes -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                      • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                    • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:102
                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:30
                                                                                                                    • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:31
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#merge! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:40
                                                                                                                • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:41
                                                                                                                • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:43
                                                                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:44
                                                                                                                  • ActiveRecord::Relation::Merger#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:46
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:625
                                                                                                                      • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:626
                                                                                                                • ActiveRecord::Relation::Merger#merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:61
                                                                                                                  • ActiveRecord::Relation::Merger#normal_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:57
                                                                                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                  • ActiveRecord::Relation::Merger#merge_multi_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:132
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActiveRecord::Relation::Merger#partition_overwrites $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:177
                                                                                                                    • ActiveRecord::Relation::Merger#filter_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:167
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#reordering_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#order! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:322
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#preprocess_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1119
                                                                                                                        • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1120
                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#validate_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1109
                                                                                                                          • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1110
                                                                                                                        • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                          • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                        • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                        • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                        • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1125
                                                                                                                        • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1128
                                                                                                                        • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1141
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#order_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#extending_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:155
                                                                                                                  • ActiveRecord::Relation::Merger#merge_single_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:158
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#from_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#lock_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#create_with_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:105
                                                                                                                    • Hash#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:162
                                                                                                                  • ActiveRecord::Relation::Merger#merge_preloads $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:87
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#preload_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                  • ActiveRecord::Relation::Merger#merge_joins $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:108
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:109
                                                                                                            • ActiveRecord::Associations::HasManyAssociation#association_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:95
                                                                                                              • ActiveRecord::Associations::HasManyAssociation#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:117
                                                                                                                • ActiveRecord::Reflection::HasManyReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                              • ActiveRecord::Associations::HasManyAssociation#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:117
                                                                                                                • ActiveRecord::Reflection::HasManyReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                              • ActsAsTaggableOn::Tagging.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                                                                                                • ActsAsTaggableOn::Tagging.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                                                                                                  • ActsAsTaggableOn::Tagging.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                                                                                    • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                      • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                        • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                        • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                    • ActsAsTaggableOn::Tagging.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                      • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                  • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                                                                                                    • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                                                                                      • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                                                                                        • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                      • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                    • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                                                                                                      • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                                                                                                        • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                                                                                                          • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                            • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                              • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                              • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                              • ActiveRecord::Associations::AssociationScope.scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:4
                                                                                                                • ActiveRecord::Associations::AssociationScope#scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:31
                                                                                                                  • ActiveRecord::Associations::HasManyAssociation#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:117
                                                                                                                    • ActiveRecord::Reflection::HasManyReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                                  • ActsAsTaggableOn::Tagging.unscoped $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:32
                                                                                                                    • Kernel#block_given? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:33
                                                                                                                    • ActsAsTaggableOn::Tagging.relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:253
                                                                                                                      • ActsAsTaggableOn::Tagging.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                                      • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                                        • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                                          • ActsAsTaggableOn::Tagging.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                                            • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                                        • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                                      • ActsAsTaggableOn::Tagging.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                                                  • ActiveRecord::Associations::AliasTracker.empty $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:10
                                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:11
                                                                                                                      • Hash#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:11
                                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:11
                                                                                                                      • ActiveRecord::Associations::AliasTracker#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:54
                                                                                                                  • Kernel#Array $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:38
                                                                                                                    • NilClass#to_a $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:38
                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#extending! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:832
                                                                                                                    • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:834
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#extending_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#extending_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#extending_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:837
                                                                                                                  • ActiveRecord::Associations::AssociationScope#add_constraints $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:131
                                                                                                                    • ActiveRecord::Reflection::HasManyReflection#chain $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:388
                                                                                                                    • ActiveRecord::Reflection::HasManyReflection#scope_chain $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:398
                                                                                                                    • ActiveRecord::Associations::AssociationScope#construct_tables $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:65
                                                                                                                      • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:66
                                                                                                                        • ActiveRecord::Associations::AssociationScope#block in construct_tables $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:66
                                                                                                                          • ActiveRecord::Associations::AssociationScope#table_name_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:179
                                                                                                                            • ActiveRecord::Reflection::HasManyReflection#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:251
                                                                                                                              • BasicObject#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:252
                                                                                                                            • ActsAsTaggableOn::Tagging.table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:125
                                                                                                                          • BasicObject#!= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:69
                                                                                                                            • ActiveRecord::Reflection::HasManyReflection#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:251
                                                                                                                              • BasicObject#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:252
                                                                                                                          • ActiveRecord::Associations::AssociationScope#table_alias_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:74
                                                                                                                            • ActiveRecord::Associations::AssociationScope#alias_suffix $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:175
                                                                                                                            • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:75
                                                                                                                          • ActiveRecord::Associations::AliasTracker#aliased_table_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:59
                                                                                                                            • Numeric#zero? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:60
                                                                                                                            • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:63
                                                                                                                              • Arel::Table#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:14
                                                                                                                                • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:15
                                                                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:22
                                                                                                                    • Array#last $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:137
                                                                                                                    • Array#last $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:138
                                                                                                                    • ActiveRecord::Associations::AssociationScope#last_chain_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:98
                                                                                                                      • ActiveRecord::Reflection::HasManyReflection#join_keys $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:162
                                                                                                                        • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:329
                                                                                                                        • ActiveRecord::Reflection::HasManyReflection#active_record_primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:342
                                                                                                                        • #<Class:ActiveRecord::Reflection::AbstractReflection::JoinKeys>#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:163
                                                                                                                          • Struct#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:163
                                                                                                                      • ActiveRecord::Reflection::AbstractReflection::JoinKeys#key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:100
                                                                                                                      • ActiveRecord::Reflection::AbstractReflection::JoinKeys#foreign_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:101
                                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:103
                                                                                                                      • Book#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:354
                                                                                                                        • Book#read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:84
                                                                                                                          • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:85
                                                                                                                          • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:86
                                                                                                                          • Book.primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/primary_key.rb:72
                                                                                                                          • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                                            • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                                            • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                                              • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                                                • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                                              • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                                      • ActiveRecord::Associations::AssociationScope#bind $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:93
                                                                                                                        • ActiveRecord::Associations::AssociationScope#column_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:84
                                                                                                                          • ActiveRecord::ConnectionAdapters::SchemaCache#columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:48
                                                                                                                        • ActiveRecord::Associations::AssociationScope#bind_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:89
                                                                                                                          • ActiveRecord::Associations::AssociationScope::BindSubstitution#bind_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:13
                                                                                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#substitute_at $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:280
                                                                                                                              • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:281
                                                                                                                                • BasicObject#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:281
                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                            • ActiveRecord::Associations::AssociationScope.block in create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:21
                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                      • Arel::Table#[] $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:99
                                                                                                                        • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                                          • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                                      • Arel::Attributes::Attribute#eq $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:15
                                                                                                                        • Arel::Attributes::Attribute#quoted_node $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:207
                                                                                                                          • Arel::Nodes.build_quoted $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:81
                                                                                                                            • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                        • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:16
                                                                                                                          • Arel::Nodes::Equality#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                            • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:568
                                                                                                                        • Arel::Nodes::Equality#eql? $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:22
                                                                                                                          • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                                                                          • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                                                                        • Arel::Nodes::Equality#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:16
                                                                                                                          • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:17
                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                                          • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                            • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                                                • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                                                • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                  • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                    • Array#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:578
                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:579
                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#build_where $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:947
                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:949
                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:949
                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:951
                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                      • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:107
                                                                                                                      • Book.base_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:100
                                                                                                                        • Module#< $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:101
                                                                                                                        • Class#superclass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:105
                                                                                                                      • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:107
                                                                                                                      • ActiveRecord::Associations::AssociationScope#bind $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:93
                                                                                                                        • ActiveRecord::Associations::AssociationScope#column_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:84
                                                                                                                          • ActiveRecord::ConnectionAdapters::SchemaCache#columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:48
                                                                                                                        • ActiveRecord::Associations::AssociationScope#bind_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:89
                                                                                                                          • ActiveRecord::Associations::AssociationScope::BindSubstitution#bind_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:13
                                                                                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#substitute_at $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:280
                                                                                                                              • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:281
                                                                                                                                • BasicObject#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:281
                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                            • ActiveRecord::Associations::AssociationScope.block in create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:21
                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                      • Arel::Table#[] $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:99
                                                                                                                        • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                                          • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                                      • Arel::Attributes::Attribute#eq $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:15
                                                                                                                        • Arel::Attributes::Attribute#quoted_node $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:207
                                                                                                                          • Arel::Nodes.build_quoted $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:81
                                                                                                                            • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                        • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:16
                                                                                                                          • Arel::Nodes::Equality#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                            • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:568
                                                                                                                        • Arel::Nodes::Equality#eql? $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:22
                                                                                                                          • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                                                                          • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                                                                        • Arel::Nodes::Equality#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:16
                                                                                                                          • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:17
                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                                          • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                            • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                                                • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                                                • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                  • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                    • Array#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:578
                                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:579
                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#build_where $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:947
                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:949
                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:949
                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:951
                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                    • Enumerable#each_with_index $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:141
                                                                                                                      • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:141
                                                                                                                        • ActiveRecord::Associations::AssociationScope#block in add_constraints $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:141
                                                                                                                          • Array#shift $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:142
                                                                                                                          • Array#first $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:142
                                                                                                                          • Array#last $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:144
                                                                                                                          • ActiveRecord::Reflection::HasManyReflection#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:251
                                                                                                                            • BasicObject#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:252
                                                                                                                          • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:154
                                                                                                                            • ActiveRecord::Associations::AssociationScope#block (2 levels) in add_constraints $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:154
                                                                                                                              • ActiveRecord::Associations::AssociationScope#eval_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:190
                                                                                                                                • ActsAsTaggableOn::Tagging.unscoped $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:32
                                                                                                                                  • Kernel#block_given? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:33
                                                                                                                                  • ActsAsTaggableOn::Tagging.relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:253
                                                                                                                                    • ActsAsTaggableOn::Tagging.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                                                    • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                                                      • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                                                        • ActsAsTaggableOn::Tagging.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                                                          • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                                                      • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                                                    • ActsAsTaggableOn::Tagging.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                                                                • BasicObject#instance_exec $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:191
                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/builder/association.rb:65
                                                                                                                                    • BasicObject#instance_exec $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/builder/association.rb:65
                                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block (3 levels) in initialize_acts_as_taggable_on_core $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:28
                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:144
                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_if_method_has_arguments! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1160
                                                                                                                                            • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1161
                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                                                            • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                                              • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                                                                  • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                                                                  • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:149
                                                                                                                                            • Array#reject! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:150
                                                                                                                                              • Symbol#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:16
                                                                                                                                                • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:17
                                                                                                                                                • Symbol#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:17
                                                                                                                                            • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:151
                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                            • Array#| $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:153
                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:317
                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_if_method_has_arguments! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1160
                                                                                                                                            • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1161
                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                                                            • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                                              • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                                                                  • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                                                                  • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:322
                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#preprocess_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1119
                                                                                                                                              • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1120
                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#validate_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1109
                                                                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1110
                                                                                                                                              • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                                              • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                                              • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                                              • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1125
                                                                                                                                              • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1128
                                                                                                                                              • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1141
                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:568
                                                                                                                                          • Hash#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:569
                                                                                                                                          • Hash#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:571
                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                                                            • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                                              • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                                                                  • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                                                                  • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:578
                                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:579
                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#sanitize_for_mass_assignment $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/forbidden_attributes_protection.rb:19
                                                                                                                                              • Kernel#respond_to? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/forbidden_attributes_protection.rb:20
                                                                                                                                            • ActiveRecord::PredicateBuilder.references $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:91
                                                                                                                                              • Enumerable#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:92
                                                                                                                                                • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:92
                                                                                                                                                  • ActiveRecord::PredicateBuilder.block in references $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:92
                                                                                                                                                    • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:93
                                                                                                                                                    • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:96
                                                                                                                                                    • String#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:97
                                                                                                                                              • Array#compact $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:99
                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#references! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:202
                                                                                                                                              • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:203
                                                                                                                                              • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:204
                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#references_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                              • Array#| $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:206
                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#references_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#build_where $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:947
                                                                                                                                              • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:949
                                                                                                                                              • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:949
                                                                                                                                              • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:951
                                                                                                                                              • ActiveRecord::PredicateBuilder.resolve_column_aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:8
                                                                                                                                                • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:11
                                                                                                                                                • Hash#keys $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:12
                                                                                                                                                • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:12
                                                                                                                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:12
                                                                                                                                                    • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:12
                                                                                                                                                    • ActiveRecord::PredicateBuilder.block in resolve_column_aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:12
                                                                                                                                                      • ActsAsTaggableOn::Tagging.attribute_alias? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:218
                                                                                                                                                        • ActsAsTaggableOn::Tagging.attribute_aliases -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                          • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                        • Symbol#to_s $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                                        • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#create_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:966
                                                                                                                                                • Enumerable#partition $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:967
                                                                                                                                                  • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:967
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in create_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:967
                                                                                                                                                      • ActiveRecord::PredicateBuilder.can_be_bound? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:149
                                                                                                                                                        • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:150
                                                                                                                                                        • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:151
                                                                                                                                                        • ActiveRecord::PredicateBuilder.handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:131
                                                                                                                                                          • Enumerable#detect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                            • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                • ActiveRecord::Base.=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:228
                                                                                                                                                                  • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:229
                                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                          • Array#last $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                      • ActsAsTaggableOn::Tagging.columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attributes.rb:97
                                                                                                                                                      • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:969
                                                                                                                                                      • Hash#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:969
                                                                                                                                                      • ActsAsTaggableOn::Tagging.reflect_on_aggregation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:61
                                                                                                                                                        • ActsAsTaggableOn::Tagging.aggregate_reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                          • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                        • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:62
                                                                                                                                                • Enumerable#partition $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:973
                                                                                                                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:973
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:48
                                                                                                                                                  • ActsAsTaggableOn::Tagging.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                                                                                                                                    • ActsAsTaggableOn::Tagging.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                                                                                                                                      • ActsAsTaggableOn::Tagging.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                                                                                                                        • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                                                          • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                                            • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                            • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                        • ActsAsTaggableOn::Tagging.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                          • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                      • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                                                                                                                                        • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                                                                                                                          • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                                                                                                                            • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                                                                                                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                          • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                                                                                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                        • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                                                                                                                                          • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                                                                                                                                            • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                                                                                                                                              • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                                                                • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                                                  • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                                  • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:982
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in create_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:982
                                                                                                                                                    • ActsAsTaggableOn::Tagging.columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attributes.rb:97
                                                                                                                                                    • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:983
                                                                                                                                                    • Array#push $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:983
                                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#substitute_at $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:280
                                                                                                                                                      • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:281
                                                                                                                                                        • BasicObject#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:281
                                                                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:987
                                                                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:994
                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                              • ActsAsTaggableOn::Tagging.expand_hash_conditions_for_aggregates $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/sanitization.rb:56
                                                                                                                                                • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/sanitization.rb:58
                                                                                                                                                  • ActsAsTaggableOn::Tagging.block in expand_hash_conditions_for_aggregates $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/sanitization.rb:58
                                                                                                                                                    • Symbol#to_sym $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/sanitization.rb:59
                                                                                                                                                    • ActsAsTaggableOn::Tagging.reflect_on_aggregation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:61
                                                                                                                                                      • ActsAsTaggableOn::Tagging.aggregate_reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                        • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                      • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:62
                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#add_relations_to_bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1166
                                                                                                                                                • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1167
                                                                                                                                                • Hash#each_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1168
                                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in add_relations_to_bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1168
                                                                                                                                                    • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1169
                                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#add_relations_to_bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1166
                                                                                                                                                      • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1167
                                                                                                                                              • ActiveRecord::PredicateBuilder.build_from_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:20
                                                                                                                                                • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:23
                                                                                                                                                  • ActiveRecord::PredicateBuilder.block in build_from_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:23
                                                                                                                                                    • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:26
                                                                                                                                                    • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:38
                                                                                                                                                    • String#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:40
                                                                                                                                                    • ActiveRecord::PredicateBuilder.expand $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:52
                                                                                                                                                      • ActsAsTaggableOn::Tagging._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                                                                        • ActsAsTaggableOn::Tagging._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                          • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                                                                                      • Arel::Table#[] $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:99
                                                                                                                                                        • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                                                                          • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                                                                      • ActiveRecord::PredicateBuilder.build $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:126
                                                                                                                                                        • ActiveRecord::PredicateBuilder.handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:131
                                                                                                                                                          • Enumerable#detect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                            • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                • ActiveRecord::Base.=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:228
                                                                                                                                                                  • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:229
                                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                          • Array#last $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                        • ActiveRecord::PredicateBuilder.block in <class:PredicateBuilder> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:117
                                                                                                                                                          • Arel::Attributes::Attribute#eq $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:15
                                                                                                                                                            • Arel::Attributes::Attribute#quoted_node $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:207
                                                                                                                                                              • Arel::Nodes.build_quoted $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:81
                                                                                                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                                                            • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:16
                                                                                                                                                              • Arel::Nodes::Equality#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                                                                • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                                                                    • Array#concat $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:45
                                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#except $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:56
                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:625
                                                                                                                                  • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:626
                                                                                                                                • Hash#except $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:9
                                                                                                                                  • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:10
                                                                                                                                    • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:10
                                                                                                                                      • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:10
                                                                                                                                  • Hash#except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:17
                                                                                                                                    • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                                                      • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                                                        • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                                                      • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                                                        • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                                                      • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                                                        • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#relation_with $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:73
                                                                                                                                  • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                                                    • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                                                      • ActsAsTaggableOn::Tagging.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                                                        • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#extending_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                  • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:75
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#merge! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:40
                                                                                                                                • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:41
                                                                                                                                • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:43
                                                                                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:44
                                                                                                                                  • ActiveRecord::Relation::Merger#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:46
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:625
                                                                                                                                      • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:626
                                                                                                                                • ActiveRecord::Relation::Merger#merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:61
                                                                                                                                  • ActiveRecord::Relation::Merger#normal_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:57
                                                                                                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                      • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                      • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                                  • ActiveRecord::Relation::Merger#merge_multi_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:132
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                    • ActiveRecord::Relation::Merger#partition_overwrites $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:177
                                                                                                                                    • ActiveRecord::Relation::Merger#filter_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:167
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#reordering_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:322
                                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#preprocess_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1119
                                                                                                                                        • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1120
                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#validate_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1109
                                                                                                                                          • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1110
                                                                                                                                        • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                                          • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                                        • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                                        • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                                        • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1125
                                                                                                                                        • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1128
                                                                                                                                        • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1141
                                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#extending_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                    • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:155
                                                                                                                                  • ActiveRecord::Relation::Merger#merge_single_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:158
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#from_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#lock_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#create_with_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:105
                                                                                                                                    • Hash#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:162
                                                                                                                                  • ActiveRecord::Relation::Merger#merge_preloads $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:87
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#preload_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                  • ActiveRecord::Relation::Merger#merge_joins $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:108
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                    • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:109
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:149
                                                                                                                                • Array#reject! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:150
                                                                                                                                  • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:150
                                                                                                                                • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:151
                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                • Array#| $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:153
                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#unscope_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#unscope! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:393
                                                                                                                                • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:394
                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#unscope_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#unscope_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:397
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                              • Array#| $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:168
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:30
                                                                                                              • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:31
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                                • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                  • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                                      • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                                      • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                      • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                        • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                          • Array#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#merge! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:40
                                                                                                                • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:41
                                                                                                                • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:43
                                                                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:44
                                                                                                                  • ActiveRecord::Relation::Merger#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:46
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:625
                                                                                                                      • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:626
                                                                                                                • ActiveRecord::Relation::Merger#merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:61
                                                                                                                  • ActiveRecord::Relation::Merger#normal_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:57
                                                                                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                      • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                      • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                  • ActiveRecord::Relation::Merger#merge_multi_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:132
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActiveRecord::Relation::Merger#partition_overwrites $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:177
                                                                                                                    • ActiveRecord::Relation::Merger#filter_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:167
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#reordering_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#order! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:322
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#preprocess_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1119
                                                                                                                        • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1120
                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#validate_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1109
                                                                                                                          • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1110
                                                                                                                        • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                          • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                        • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                        • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                        • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1125
                                                                                                                        • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1128
                                                                                                                        • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1141
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#order_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#extending_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:155
                                                                                                                  • ActiveRecord::Relation::Merger#merge_single_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:158
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#from_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#lock_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#create_with_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:105
                                                                                                                    • Hash#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:162
                                                                                                                  • ActiveRecord::Relation::Merger#merge_preloads $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:87
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#preload_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#preload_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#includes! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:149
                                                                                                                      • Array#reject! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:150
                                                                                                                        • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:150
                                                                                                                      • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:151
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                      • Array#| $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:153
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#includes_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                  • ActiveRecord::Relation::Merger#merge_joins $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:108
                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:109
                                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_association.rb:435
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#merge! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:40
                                                                                                          • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:41
                                                                                                          • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:43
                                                                                                          • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:44
                                                                                                            • ActiveRecord::Relation::Merger#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:46
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:625
                                                                                                                • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:626
                                                                                                          • ActiveRecord::Relation::Merger#merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:61
                                                                                                            • ActiveRecord::Relation::Merger#normal_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:57
                                                                                                            • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                            • ActiveRecord::Relation::Merger#merge_multi_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:132
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActiveRecord::Relation::Merger#partition_overwrites $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:177
                                                                                                              • ActiveRecord::Relation::Merger#filter_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:167
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#reordering_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#order! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:322
                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#preprocess_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1119
                                                                                                                  • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1120
                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#validate_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1109
                                                                                                                    • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1110
                                                                                                                  • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                    • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                  • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                  • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                  • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1125
                                                                                                                  • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1128
                                                                                                                  • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1141
                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#order_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#extending_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:155
                                                                                                            • ActiveRecord::Relation::Merger#merge_single_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:158
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#from_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#lock_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#create_with_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:105
                                                                                                              • Hash#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:162
                                                                                                            • ActiveRecord::Relation::Merger#merge_preloads $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:87
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#preload_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#preload_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#includes! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:149
                                                                                                                • Array#reject! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:150
                                                                                                                  • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:150
                                                                                                                • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:151
                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                • Array#| $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:153
                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#includes_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                            • ActiveRecord::Relation::Merger#merge_joins $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:108
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_AssociationRelation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:109
                                                                                                • Kernel#Array $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:21
                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:116
                                                                                                    • Kernel#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:117
                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#to_ary $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_proxy.rb:944
                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Associations_CollectionProxy#load_target $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_proxy.rb:44
                                                                                                      • ActiveRecord::Associations::HasManyAssociation#load_target $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_association.rb:401
                                                                                                        • ActiveRecord::Associations::HasManyAssociation#find_target? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:175
                                                                                                          • ActiveRecord::Associations::HasManyAssociation#loaded? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:58
                                                                                                        • ActiveRecord::Associations::HasManyAssociation#loaded! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:63
                                                                                                          • ActiveRecord::Associations::HasManyAssociation#stale_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:246
                                                                                                    • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_proxy.rb:945
                                                                                                      • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_proxy.rb:945
                                                                                                        • Array#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_proxy.rb:945
                                                                                            • ActiveRecord::Associations::Preloader::HasManyThrough#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:5
                                                                                              • ActiveRecord::Reflection::ThroughReflection#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:686
                                                                                                • ActiveRecord::Reflection::ThroughReflection#active_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                • ActiveRecord::Reflection::ThroughReflection#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                • Book._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                  • Book._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                    • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                  • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                            • ActiveRecord::Associations::Preloader::HasManyThrough#reset_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:62
                                                                                              • ActiveRecord::Associations::Preloader::HasManyThrough#through_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:75
                                                                                                • ActiveRecord::Associations::Preloader::HasManyThrough#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:5
                                                                                                  • ActiveRecord::Reflection::ThroughReflection#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:686
                                                                                                    • ActiveRecord::Reflection::ThroughReflection#active_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                    • ActiveRecord::Reflection::ThroughReflection#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                    • Book._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                      • Book._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                        • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                      • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                                • ActiveRecord::Reflection::HasManyReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                • ActsAsTaggableOn::Tagging.unscoped $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:32
                                                                                                  • Kernel#block_given? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:33
                                                                                                  • ActsAsTaggableOn::Tagging.relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:253
                                                                                                    • ActsAsTaggableOn::Tagging.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                    • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                      • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                        • ActsAsTaggableOn::Tagging.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                          • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                      • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                    • ActsAsTaggableOn::Tagging.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                                • ActiveRecord::Associations::Preloader::HasManyThrough#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:71
                                                                                                  • ActiveRecord::Reflection::ThroughReflection#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                • ActiveRecord::Associations::Preloader::HasManyThrough#reflection_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:127
                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                • ActiveRecord::Associations::Preloader::HasManyThrough#reflection_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:127
                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:625
                                                                                                  • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:626
                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#references! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:202
                                                                                                  • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:203
                                                                                                  • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:204
                                                                                                    • NilClass#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:204
                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#references_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                  • Array#| $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:206
                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#references_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#eager_loading? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:584
                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#eager_load_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                  • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:586
                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                  • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:587
                                                                                              • ActiveRecord::Associations::Preloader::HasManyThrough#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:5
                                                                                                • ActiveRecord::Reflection::ThroughReflection#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:686
                                                                                                  • ActiveRecord::Reflection::ThroughReflection#active_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                  • ActiveRecord::Reflection::ThroughReflection#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                  • Book._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                    • Book._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                      • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                    • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                              • ActiveRecord::Reflection::HasManyReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                              • ActsAsTaggableOn::Tagging.unscoped $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:32
                                                                                                • Kernel#block_given? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:33
                                                                                                • ActsAsTaggableOn::Tagging.relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:253
                                                                                                  • ActsAsTaggableOn::Tagging.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                  • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                    • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                      • ActsAsTaggableOn::Tagging.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                        • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                  • ActsAsTaggableOn::Tagging.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                              • BasicObject#!= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:63
                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:605
                                                                                                  • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:607
                                                                                                  • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:607
                                                                                                  • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:609
                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#to_sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:538
                                                                                                    • ActsAsTaggableOn::Tagging.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                                                                                      • ActsAsTaggableOn::Tagging.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                                                                                        • ActsAsTaggableOn::Tagging.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                                                                          • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                            • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                              • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                              • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                          • ActsAsTaggableOn::Tagging.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                            • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                        • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                                                                                          • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                                                                            • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                                                                              • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                                                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                            • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                                                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                          • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                                                                                            • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                                                                                              • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                                                                                                • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                  • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                    • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                    • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#eager_loading? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:584
                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#eager_load_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                      • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:586
                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                      • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:587
                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#arel $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:857
                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#build_arel $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:863
                                                                                                        • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:864
                                                                                                          • Arel::SelectManager#initialize $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:9
                                                                                                            • Arel::SelectManager#initialize $GemPath0/gems/arel-6.0.4/lib/arel/tree_manager.rb:11
                                                                                                            • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:11
                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_statement.rb:7
                                                                                                                • Arel::Nodes::SelectCore#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_core.rb:7
                                                                                                                  • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_core.rb:8
                                                                                                                  • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_core.rb:9
                                                                                                                    • Arel::Nodes::JoinSource#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/join_source.rb:9
                                                                                                                      • Arel::Nodes::JoinSource#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                        • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                              • Arel::Nodes::SelectStatement#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_statement.rb:7
                                                                                                                • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_statement.rb:8
                                                                                                            • Array#last $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:12
                                                                                                            • Arel::SelectManager#from $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:87
                                                                                                              • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:88
                                                                                                              • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:91
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                        • Array#- $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:868
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#collapse_wheres $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:937
                                                                                                          • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:938
                                                                                                          • Array#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                                                                            • Array#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:24
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#having_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#limit_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#offset_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#group_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#build_order $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1099
                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                          • Array#uniq $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1100
                                                                                                          • Array#reject! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1101
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#build_select $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1057
                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#select_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                          • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1058
                                                                                                          • ActsAsTaggableOn::Tagging.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                          • Arel.star $GemPath0/gems/arel-6.0.4/lib/arel.rb:30
                                                                                                            • Arel.sql $GemPath0/gems/arel-6.0.4/lib/arel.rb:26
                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel.rb:27
                                                                                                                • String#initialize $GemPath0/gems/arel-6.0.4/lib/arel.rb:27
                                                                                                          • Arel::Table#[] $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:99
                                                                                                            • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                              • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                          • Arel::SelectManager#project $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:132
                                                                                                            • Array#map $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:135
                                                                                                              • Arel::SelectManager#block in project $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:135
                                                                                                                • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                                                                • Array#include? $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                                                            • Array#concat $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:135
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#distinct_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                        • Arel::SelectManager#distinct $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:149
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                    • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:549
                                                                                                      • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:549
                                                                                                        • Array#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:549
                                                                                                    • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:550
                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:551
                                                                                                      • Arel::Collectors::Bind#initialize $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:4
                                                                                                    • Arel::Visitors::SQLite#accept $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:6
                                                                                                      • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                        • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                        • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                        • Arel::Visitors::SQLite#visit_Arel_Nodes_SelectStatement $GemPath0/gems/arel-6.0.4/lib/arel/visitors/sqlite.rb:11
                                                                                                          • Arel::Visitors::SQLite#visit_Arel_Nodes_SelectStatement $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:203
                                                                                                            • Enumerable#inject $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:209
                                                                                                              • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:209
                                                                                                                • Arel::Visitors::SQLite#block in visit_Arel_Nodes_SelectStatement $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:209
                                                                                                                  • Arel::Visitors::SQLite#visit_Arel_Nodes_SelectCore $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:230
                                                                                                                    • Arel::Collectors::Bind#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:8
                                                                                                                    • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:785
                                                                                                                    • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:785
                                                                                                                    • Arel::Collectors::Bind#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:8
                                                                                                                    • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:240
                                                                                                                      • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:240
                                                                                                                        • Arel::Visitors::SQLite#block in visit_Arel_Nodes_SelectCore $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:240
                                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Attributes_Attribute $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:709
                                                                                                                              • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                                              • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                                              • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:775
                                                                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:776
                                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:50
                                                                                                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                    • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                    • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                              • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:711
                                                                                                                              • Arel::Visitors::SQLite#quote_column_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:780
                                                                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:781
                                                                                                                              • Arel::Collectors::Bind#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:8
                                                                                                                    • Arel::Nodes::JoinSource#empty? $GemPath0/gems/arel-6.0.4/lib/arel/nodes/join_source.rb:13
                                                                                                                    • Arel::Collectors::Bind#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:8
                                                                                                                    • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                      • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                      • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                      • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                      • Arel::Visitors::SQLite#visit_Arel_Nodes_JoinSource $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:555
                                                                                                                        • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                          • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                          • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                          • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                          • Arel::Visitors::SQLite#visit_Arel_Table $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:620
                                                                                                                            • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:775
                                                                                                                              • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:776
                                                                                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:50
                                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                  • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                  • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                            • Arel::Collectors::Bind#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:8
                                                                                                                        • Array#any? $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:559
                                                                                                                    • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:785
                                                                                                            • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:785
                                                                                                            • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:785
                                                                                                            • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:785
                                                                                                    • Arel::Collectors::Bind#substitute_binds $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:20
                                                                                                      • Kernel#dup $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:21
                                                                                                        • Kernel#initialize_dup $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:21
                                                                                                          • Array#initialize_copy $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:21
                                                                                                      • Array#map $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:22
                                                                                                        • Arel::Collectors::Bind#block in substitute_binds $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:22
                                                                                                          • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:23
                                                                                                        • Arel::Collectors::Bind#block in substitute_binds $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:22
                                                                                                          • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:23
                                                                                                        • Arel::Collectors::Bind#block in substitute_binds $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:22
                                                                                                          • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:23
                                                                                                        • Arel::Collectors::Bind#block in substitute_binds $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:22
                                                                                                          • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:23
                                                                                                        • Arel::Collectors::Bind#block in substitute_binds $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:22
                                                                                                          • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:23
                                                                                                    • Array#join $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:552
                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#to_sql $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:538
                                                                                                    • ActsAsTaggableOn::Tagging.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                                                                                      • ActsAsTaggableOn::Tagging.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                                                                                        • ActsAsTaggableOn::Tagging.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                                                                          • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                            • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                              • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                              • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                          • ActsAsTaggableOn::Tagging.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                            • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                        • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                                                                                          • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                                                                            • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                                                                              • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                                                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                            • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                                                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                          • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                                                                                            • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                                                                                              • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                                                                                                • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                  • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                    • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                    • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#eager_loading? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:584
                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#eager_load_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                      • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:586
                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                      • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:587
                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#arel $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:857
                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#build_arel $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:863
                                                                                                        • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:864
                                                                                                          • Arel::SelectManager#initialize $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:9
                                                                                                            • Arel::SelectManager#initialize $GemPath0/gems/arel-6.0.4/lib/arel/tree_manager.rb:11
                                                                                                            • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:11
                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_statement.rb:7
                                                                                                                • Arel::Nodes::SelectCore#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_core.rb:7
                                                                                                                  • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_core.rb:8
                                                                                                                  • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_core.rb:9
                                                                                                                    • Arel::Nodes::JoinSource#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/join_source.rb:9
                                                                                                                      • Arel::Nodes::JoinSource#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                        • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                              • Arel::Nodes::SelectStatement#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_statement.rb:7
                                                                                                                • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/select_statement.rb:8
                                                                                                            • Array#last $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:12
                                                                                                            • Arel::SelectManager#from $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:87
                                                                                                              • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:88
                                                                                                              • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:91
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                        • Array#- $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:868
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#collapse_wheres $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:937
                                                                                                          • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:938
                                                                                                          • Array#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                                                                            • Array#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:24
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#having_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#limit_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#offset_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#group_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#build_order $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1099
                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                          • Array#uniq $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1100
                                                                                                          • Array#reject! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1101
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#build_select $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1057
                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#select_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                          • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1058
                                                                                                          • ActsAsTaggableOn::Tagging.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                          • Arel.star $GemPath0/gems/arel-6.0.4/lib/arel.rb:30
                                                                                                            • Arel.sql $GemPath0/gems/arel-6.0.4/lib/arel.rb:26
                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel.rb:27
                                                                                                                • String#initialize $GemPath0/gems/arel-6.0.4/lib/arel.rb:27
                                                                                                          • Arel::Table#[] $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:99
                                                                                                            • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                              • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                          • Arel::SelectManager#project $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:132
                                                                                                            • Array#map $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:135
                                                                                                              • Arel::SelectManager#block in project $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:135
                                                                                                                • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                                                                • Array#include? $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:136
                                                                                                            • Array#concat $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:135
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#distinct_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                        • Arel::SelectManager#distinct $GemPath0/gems/arel-6.0.4/lib/arel/select_manager.rb:149
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                    • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:549
                                                                                                      • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:549
                                                                                                        • Array#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:549
                                                                                                    • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:550
                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:551
                                                                                                      • Arel::Collectors::Bind#initialize $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:4
                                                                                                    • Arel::Visitors::SQLite#accept $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:6
                                                                                                      • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                        • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                        • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                        • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                        • Arel::Visitors::SQLite#visit_Arel_Nodes_SelectStatement $GemPath0/gems/arel-6.0.4/lib/arel/visitors/sqlite.rb:11
                                                                                                          • Arel::Visitors::SQLite#visit_Arel_Nodes_SelectStatement $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:203
                                                                                                            • Enumerable#inject $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:209
                                                                                                              • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:209
                                                                                                                • Arel::Visitors::SQLite#block in visit_Arel_Nodes_SelectStatement $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:209
                                                                                                                  • Arel::Visitors::SQLite#visit_Arel_Nodes_SelectCore $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:230
                                                                                                                    • Arel::Collectors::Bind#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:8
                                                                                                                    • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:785
                                                                                                                    • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:785
                                                                                                                    • Arel::Collectors::Bind#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:8
                                                                                                                    • Enumerable#each_with_index $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:240
                                                                                                                      • Array#each $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:240
                                                                                                                        • Arel::Visitors::SQLite#block in visit_Arel_Nodes_SelectCore $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:240
                                                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                            • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                            • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                            • Arel::Visitors::SQLite#visit_Arel_Attributes_Attribute $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:709
                                                                                                                              • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                                              • #<Class:0x000055592d6f2990>#relation $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:710
                                                                                                                              • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:775
                                                                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:776
                                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:50
                                                                                                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                    • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                    • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                              • #<Class:0x000055592d6f2990>#name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:711
                                                                                                                              • Arel::Visitors::SQLite#quote_column_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:780
                                                                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:781
                                                                                                                              • Arel::Collectors::Bind#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:8
                                                                                                                    • Arel::Nodes::JoinSource#empty? $GemPath0/gems/arel-6.0.4/lib/arel/nodes/join_source.rb:13
                                                                                                                    • Arel::Collectors::Bind#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:8
                                                                                                                    • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                      • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                      • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                      • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                      • Arel::Visitors::SQLite#visit_Arel_Nodes_JoinSource $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:555
                                                                                                                        • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:12
                                                                                                                          • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-6.0.4/lib/arel/visitors/visitor.rb:24
                                                                                                                          • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                          • Kernel#hash $GemPath0/gems/arel-6.0.4/lib/arel/visitors/reduce.rb:13
                                                                                                                          • Arel::Visitors::SQLite#visit_Arel_Table $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:620
                                                                                                                            • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:775
                                                                                                                              • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:776
                                                                                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/quoting.rb:50
                                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:239
                                                                                                                                  • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                                  • String#gsub $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/sqlite3_adapter.rb:240
                                                                                                                            • Arel::Collectors::Bind#<< $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:8
                                                                                                                        • Array#any? $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:559
                                                                                                                    • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:785
                                                                                                            • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:785
                                                                                                            • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:785
                                                                                                            • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-6.0.4/lib/arel/visitors/to_sql.rb:785
                                                                                                    • Arel::Collectors::Bind#substitute_binds $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:20
                                                                                                      • Kernel#dup $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:21
                                                                                                        • Kernel#initialize_dup $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:21
                                                                                                          • Array#initialize_copy $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:21
                                                                                                      • Array#map $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:22
                                                                                                        • Arel::Collectors::Bind#block in substitute_binds $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:22
                                                                                                          • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:23
                                                                                                        • Arel::Collectors::Bind#block in substitute_binds $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:22
                                                                                                          • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:23
                                                                                                        • Arel::Collectors::Bind#block in substitute_binds $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:22
                                                                                                          • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:23
                                                                                                        • Arel::Collectors::Bind#block in substitute_binds $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:22
                                                                                                          • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:23
                                                                                                        • Arel::Collectors::Bind#block in substitute_binds $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:22
                                                                                                          • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/collectors/bind.rb:23
                                                                                                    • Array#join $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:552
                                                                                              • ActiveRecord::Reflection::ThroughReflection#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                            • Enumerable#flat_map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:26
                                                                                              • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:26
                                                                                                • ActiveRecord::Associations::Preloader::HasManyThrough#block in associated_records_by_owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:26
                                                                                                • ActiveRecord::Associations::Preloader::HasManyThrough#block in associated_records_by_owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:26
                                                                                            • ActiveRecord::Associations::Preloader::HasManyThrough#source_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:9
                                                                                              • ActiveRecord::Reflection::ThroughReflection#source_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:670
                                                                                                • ActiveRecord::Reflection::ThroughReflection#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:686
                                                                                                  • ActiveRecord::Reflection::ThroughReflection#active_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                  • ActiveRecord::Reflection::ThroughReflection#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                  • Book._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                    • Book._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                      • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                    • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                                • ActiveRecord::Reflection::HasManyReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                • ActiveRecord::Reflection::ThroughReflection#source_reflection_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:801
                                                                                                • ActsAsTaggableOn::Tagging._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                  • ActsAsTaggableOn::Tagging._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                    • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                  • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                            • ActiveRecord::Associations::Preloader::HasManyThrough#reflection_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:127
                                                                                            • ActiveRecord::Associations::Preloader#preload $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:94
                                                                                              • Array.wrap $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:36
                                                                                                • Kernel#nil? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:37
                                                                                                • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:39
                                                                                                • Array#to_ary $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:40
                                                                                              • Array#compact $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:95
                                                                                              • Array#uniq $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:95
                                                                                                • ActsAsTaggableOn::Tagging#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:398
                                                                                                  • ActsAsTaggableOn::Tagging#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                    • ActsAsTaggableOn::Tagging#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                      • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                  • ActsAsTaggableOn::Tagging#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                    • ActsAsTaggableOn::Tagging#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                      • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                  • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:400
                                                                                                • ActsAsTaggableOn::Tagging#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:398
                                                                                                  • ActsAsTaggableOn::Tagging#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                    • ActsAsTaggableOn::Tagging#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                      • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                  • ActsAsTaggableOn::Tagging#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                    • ActsAsTaggableOn::Tagging#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                      • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                  • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:400
                                                                                              • Array.wrap $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:36
                                                                                                • Kernel#nil? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:37
                                                                                                • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/array/wrap.rb:39
                                                                                              • Enumerable#flat_map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:102
                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:102
                                                                                                  • ActiveRecord::Associations::Preloader#block in preload $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:102
                                                                                                    • ActiveRecord::Associations::Preloader#preloaders_on $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:110
                                                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:112
                                                                                                      • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:114
                                                                                                      • ActiveRecord::Associations::Preloader#preloaders_for_one $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:142
                                                                                                        • ActiveRecord::Associations::Preloader#grouped_records $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:152
                                                                                                          • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:154
                                                                                                            • ActiveRecord::Associations::Preloader#block in grouped_records $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:154
                                                                                                              • ActsAsTaggableOn::Tagging#association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:157
                                                                                                                • ActsAsTaggableOn::Tagging#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                                                                • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:160
                                                                                                              • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:157
                                                                                                              • ActiveRecord::Associations::BelongsToAssociation#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:117
                                                                                                                • ActiveRecord::Reflection::BelongsToReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                              • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:158
                                                                                                            • ActiveRecord::Associations::Preloader#block in grouped_records $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:154
                                                                                                              • ActsAsTaggableOn::Tagging#association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:157
                                                                                                                • ActsAsTaggableOn::Tagging#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                                                                • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:160
                                                                                                              • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:157
                                                                                                              • ActiveRecord::Associations::BelongsToAssociation#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:117
                                                                                                                • ActiveRecord::Reflection::BelongsToReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                              • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:158
                                                                                                        • Enumerable#flat_map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:143
                                                                                                          • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:143
                                                                                                            • ActiveRecord::Associations::Preloader#block in preloaders_for_one $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:143
                                                                                                              • Enumerable#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:144
                                                                                                                • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:144
                                                                                                                  • ActiveRecord::Associations::Preloader#block (2 levels) in preloaders_for_one $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:144
                                                                                                                    • ActiveRecord::Associations::Preloader#preloader_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:184
                                                                                                                      • Array#first $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:187
                                                                                                                      • ActsAsTaggableOn::Tagging#association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:157
                                                                                                                        • ActsAsTaggableOn::Tagging#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                                                                        • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:160
                                                                                                                      • ActiveRecord::Associations::BelongsToAssociation#loaded? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:58
                                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:145
                                                                                                                      • ActiveRecord::Associations::Preloader::AlreadyLoaded#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:166
                                                                                                                    • ActiveRecord::Associations::Preloader::AlreadyLoaded#run $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:171
                                                                                            • Enumerable#flat_map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:32
                                                                                              • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:32
                                                                                                • ActiveRecord::Associations::Preloader::AlreadyLoaded#preloaded_records $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:173
                                                                                                  • Enumerable#flat_map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:174
                                                                                                    • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:174
                                                                                                      • ActiveRecord::Associations::Preloader::AlreadyLoaded#block in preloaded_records $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:174
                                                                                                        • ActsAsTaggableOn::Tagging#association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:157
                                                                                                          • ActsAsTaggableOn::Tagging#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                                                          • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:160
                                                                                                      • ActsAsTaggableOn::Tag#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:235
                                                                                                        • ActsAsTaggableOn::Tag#respond_to? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:449
                                                                                                          • Kernel#respond_to? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:450
                                                                                                        • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:237
                                                                                                        • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:243
                                                                                                        • ActsAsTaggableOn::Tag.column_names $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:259
                                                                                                        • Array#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:243
                                                                                                      • ActsAsTaggableOn::Tag#to_ary $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:543
                                                                                                      • ActiveRecord::Associations::Preloader::AlreadyLoaded#block in preloaded_records $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader.rb:174
                                                                                                        • ActsAsTaggableOn::Tagging#association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:157
                                                                                                          • ActsAsTaggableOn::Tagging#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                                                          • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:160
                                                                                                      • ActsAsTaggableOn::Tag#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:235
                                                                                                        • ActsAsTaggableOn::Tag#respond_to? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:449
                                                                                                          • Kernel#respond_to? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:450
                                                                                                        • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:237
                                                                                                        • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:243
                                                                                                        • ActsAsTaggableOn::Tag.column_names $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:259
                                                                                                        • Array#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:243
                                                                                                      • ActsAsTaggableOn::Tag#to_ary $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:543
                                                                                            • Enumerable#each_with_object $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:34
                                                                                              • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:34
                                                                                                • ActiveRecord::Associations::Preloader::HasManyThrough#block in associated_records_by_owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:34
                                                                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:35
                                                                                                    • ActiveRecord::Associations::Preloader::HasManyThrough#block (2 levels) in associated_records_by_owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:35
                                                                                                      • ActsAsTaggableOn::Tagging#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:398
                                                                                                        • ActsAsTaggableOn::Tagging#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                          • ActsAsTaggableOn::Tagging#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                            • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                            • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                              • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                                • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                              • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                        • ActsAsTaggableOn::Tagging#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                          • ActsAsTaggableOn::Tagging#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                            • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                            • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                              • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                                • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                              • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                        • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:400
                                                                                                    • ActiveRecord::Associations::Preloader::HasManyThrough#block (2 levels) in associated_records_by_owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:35
                                                                                                      • ActsAsTaggableOn::Tagging#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:398
                                                                                                        • ActsAsTaggableOn::Tagging#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                          • ActsAsTaggableOn::Tagging#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                            • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                            • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                              • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                                • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                              • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                        • ActsAsTaggableOn::Tagging#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                          • ActsAsTaggableOn::Tagging#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                            • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                            • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                              • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                                • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                              • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                        • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:400
                                                                                            • Enumerable#each_with_index $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:41
                                                                                              • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:41
                                                                                                • ActiveRecord::Associations::Preloader::HasManyThrough#block in associated_records_by_owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:41
                                                                                                  • ActsAsTaggableOn::Tag#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:398
                                                                                                    • ActsAsTaggableOn::Tag#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                      • ActsAsTaggableOn::Tag#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                    • ActsAsTaggableOn::Tag#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                      • ActsAsTaggableOn::Tag#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                    • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:400
                                                                                                • ActiveRecord::Associations::Preloader::HasManyThrough#block in associated_records_by_owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:41
                                                                                                  • ActsAsTaggableOn::Tag#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:398
                                                                                                    • ActsAsTaggableOn::Tag#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                      • ActsAsTaggableOn::Tag#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                    • ActsAsTaggableOn::Tag#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                      • ActsAsTaggableOn::Tag#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                    • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:400
                                                                                            • Enumerable#each_with_object $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:45
                                                                                              • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:45
                                                                                                • ActiveRecord::Associations::Preloader::HasManyThrough#block in associated_records_by_owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:45
                                                                                                  • Enumerable#group_by $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:46
                                                                                                    • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:46
                                                                                                      • ActiveRecord::Associations::Preloader::HasManyThrough#block (2 levels) in associated_records_by_owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:46
                                                                                                        • ActsAsTaggableOn::Tagging#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:398
                                                                                                          • ActsAsTaggableOn::Tagging#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                            • ActsAsTaggableOn::Tagging#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                              • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                              • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                                • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                                  • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                                • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                          • ActsAsTaggableOn::Tagging#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                            • ActsAsTaggableOn::Tagging#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                              • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                              • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                                • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                                  • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                                • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                          • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:400
                                                                                                      • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:46
                                                                                                      • ActiveRecord::Associations::Preloader::HasManyThrough#block (2 levels) in associated_records_by_owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:46
                                                                                                        • ActsAsTaggableOn::Tagging#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:398
                                                                                                          • ActsAsTaggableOn::Tagging#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                            • ActsAsTaggableOn::Tagging#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                              • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                              • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                                • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                                  • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                                • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                          • ActsAsTaggableOn::Tagging#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                            • ActsAsTaggableOn::Tagging#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                              • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                              • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                                • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                                  • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                                • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                          • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:400
                                                                                                      • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:46
                                                                                                  • Enumerable#flat_map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:48
                                                                                                    • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:48
                                                                                                      • ActiveRecord::Associations::Preloader::HasManyThrough#block (2 levels) in associated_records_by_owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:48
                                                                                                        • Enumerable#flat_map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:49
                                                                                                          • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:49
                                                                                                            • ActiveRecord::Associations::Preloader::HasManyThrough#block (3 levels) in associated_records_by_owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:49
                                                                                                              • ActiveRecord::Associations::Preloader::HasManyThrough#source_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:9
                                                                                                                • ActiveRecord::Reflection::ThroughReflection#source_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:670
                                                                                                                  • ActiveRecord::Reflection::ThroughReflection#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:686
                                                                                                                    • ActiveRecord::Reflection::ThroughReflection#active_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                                    • ActiveRecord::Reflection::ThroughReflection#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                                    • Book._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                                      • Book._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                        • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                      • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                                                  • ActiveRecord::Reflection::HasManyReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                                  • ActiveRecord::Reflection::ThroughReflection#source_reflection_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:801
                                                                                                                  • ActsAsTaggableOn::Tagging._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                                    • ActsAsTaggableOn::Tagging._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                      • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                    • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                                              • ActsAsTaggableOn::Tagging#association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:157
                                                                                                                • ActsAsTaggableOn::Tagging#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                                                                • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:160
                                                                                                              • ActiveRecord::Associations::BelongsToAssociation#reader $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/singular_association.rb:5
                                                                                                                • ActiveRecord::Associations::BelongsToAssociation#loaded? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:58
                                                                                                                • ActiveRecord::Associations::BelongsToAssociation#stale_target? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:75
                                                                                                                  • ActiveRecord::Associations::BelongsToAssociation#loaded? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:58
                                                                                                                  • ActiveRecord::Associations::BelongsToAssociation#stale_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/belongs_to_association.rb:109
                                                                                                                    • ActiveRecord::Reflection::BelongsToReflection#foreign_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:329
                                                                                                                    • ActsAsTaggableOn::Tagging#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                                      • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                                    • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                      • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                                        • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                                            • ActsAsTaggableOn::Tag#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:235
                                                                                                              • ActsAsTaggableOn::Tag#respond_to? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:449
                                                                                                                • Kernel#respond_to? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:450
                                                                                                              • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:237
                                                                                                              • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:243
                                                                                                              • ActsAsTaggableOn::Tag.column_names $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:259
                                                                                                              • Array#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:243
                                                                                                            • ActsAsTaggableOn::Tag#to_ary $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:543
                                                                                                            • ActiveRecord::Associations::Preloader::HasManyThrough#block (3 levels) in associated_records_by_owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:49
                                                                                                              • ActiveRecord::Associations::Preloader::HasManyThrough#source_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:9
                                                                                                                • ActiveRecord::Reflection::ThroughReflection#source_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:670
                                                                                                                  • ActiveRecord::Reflection::ThroughReflection#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:686
                                                                                                                    • ActiveRecord::Reflection::ThroughReflection#active_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                                    • ActiveRecord::Reflection::ThroughReflection#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                                    • Book._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                                      • Book._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                        • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                      • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                                                  • ActiveRecord::Reflection::HasManyReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                                  • ActiveRecord::Reflection::ThroughReflection#source_reflection_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:801
                                                                                                                  • ActsAsTaggableOn::Tagging._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                                    • ActsAsTaggableOn::Tagging._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                      • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                    • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                                              • ActsAsTaggableOn::Tagging#association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:157
                                                                                                                • ActsAsTaggableOn::Tagging#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                                                                • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:160
                                                                                                              • ActiveRecord::Associations::BelongsToAssociation#reader $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/singular_association.rb:5
                                                                                                                • ActiveRecord::Associations::BelongsToAssociation#loaded? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:58
                                                                                                                • ActiveRecord::Associations::BelongsToAssociation#stale_target? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:75
                                                                                                                  • ActiveRecord::Associations::BelongsToAssociation#loaded? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:58
                                                                                                                  • ActiveRecord::Associations::BelongsToAssociation#stale_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/belongs_to_association.rb:109
                                                                                                                    • ActiveRecord::Reflection::BelongsToReflection#foreign_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:329
                                                                                                                    • ActsAsTaggableOn::Tagging#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                                      • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                                    • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                      • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                                                        • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                                                            • ActsAsTaggableOn::Tag#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:235
                                                                                                              • ActsAsTaggableOn::Tag#respond_to? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:449
                                                                                                                • Kernel#respond_to? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:450
                                                                                                              • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:237
                                                                                                              • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:243
                                                                                                              • ActsAsTaggableOn::Tag.column_names $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:259
                                                                                                              • Array#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:243
                                                                                                            • ActsAsTaggableOn::Tag#to_ary $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:543
                                                                                                        • Array#compact $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:53
                                                                                                        • Enumerable#sort_by $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:55
                                                                                                          • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:55
                                                                                                            • ActiveRecord::Associations::Preloader::HasManyThrough#block (3 levels) in associated_records_by_owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:55
                                                                                                              • ActsAsTaggableOn::Tag#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:398
                                                                                                                • ActsAsTaggableOn::Tag#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                                  • ActsAsTaggableOn::Tag#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                                    • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                                    • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                                      • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                                        • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                                      • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                                • ActsAsTaggableOn::Tag#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                                  • ActsAsTaggableOn::Tag#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                                    • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                                    • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                                      • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                                        • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                                      • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                                • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:400
                                                                                                            • ActiveRecord::Associations::Preloader::HasManyThrough#block (3 levels) in associated_records_by_owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:55
                                                                                                              • ActsAsTaggableOn::Tag#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:398
                                                                                                                • ActsAsTaggableOn::Tag#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                                  • ActsAsTaggableOn::Tag#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                                    • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                                    • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                                      • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                                        • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                                      • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                                • ActsAsTaggableOn::Tag#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                                  • ActsAsTaggableOn::Tag#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                                    • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                                    • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                                      • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                                        • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                                      • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                                • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:400
                                                                                                  • Book#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:398
                                                                                                    • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                      • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                    • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                      • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                    • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:400
                                                                                                • ActiveRecord::Associations::Preloader::HasManyThrough#block in associated_records_by_owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:45
                                                                                                  • Enumerable#group_by $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:46
                                                                                                    • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:46
                                                                                                  • Enumerable#flat_map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:48
                                                                                                    • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/through_association.rb:48
                                                                                                  • Book#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:398
                                                                                                    • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                      • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                    • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                                      • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                    • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:400
                                                                                          • ActiveRecord::Associations::Preloader::HasManyThrough#reflection_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/association.rb:127
                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_Relation#distinct_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                        • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/collection_association.rb:13
                                                                                          • ActiveRecord::Associations::Preloader::HasManyThrough#block in preload $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/collection_association.rb:13
                                                                                            • ActiveRecord::Reflection::ThroughReflection#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                            • Book#association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:157
                                                                                              • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                                              • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:160
                                                                                            • ActiveRecord::Associations::HasManyThroughAssociation#loaded! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:63
                                                                                              • ActiveRecord::Associations::HasManyThroughAssociation#stale_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/through_association.rb:67
                                                                                                • ActiveRecord::Associations::HasManyThroughAssociation#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/through_association.rb:6
                                                                                                  • ActiveRecord::Reflection::ThroughReflection#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:686
                                                                                                    • ActiveRecord::Reflection::ThroughReflection#active_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                    • ActiveRecord::Reflection::ThroughReflection#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                    • Book._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                      • Book._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                        • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                      • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                                • ActiveRecord::Reflection::HasManyReflection#belongs_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:442
                                                                                            • Array#concat $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/collection_association.rb:16
                                                                                            • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/collection_association.rb:17
                                                                                              • ActiveRecord::Associations::Preloader::HasManyThrough#block (2 levels) in preload $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/collection_association.rb:17
                                                                                                • ActiveRecord::Associations::HasManyThroughAssociation#set_inverse_instance $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:106
                                                                                                  • ActiveRecord::Associations::HasManyThroughAssociation#invertible_for? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/has_many_through_association.rb:233
                                                                                              • ActiveRecord::Associations::Preloader::HasManyThrough#block (2 levels) in preload $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/collection_association.rb:17
                                                                                                • ActiveRecord::Associations::HasManyThroughAssociation#set_inverse_instance $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:106
                                                                                                  • ActiveRecord::Associations::HasManyThroughAssociation#invertible_for? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/has_many_through_association.rb:233
                                                                                          • ActiveRecord::Associations::Preloader::HasManyThrough#block in preload $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/collection_association.rb:13
                                                                                            • ActiveRecord::Reflection::ThroughReflection#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                            • Book#association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:157
                                                                                              • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                                              • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:160
                                                                                            • ActiveRecord::Associations::HasManyThroughAssociation#loaded! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:63
                                                                                              • ActiveRecord::Associations::HasManyThroughAssociation#stale_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/through_association.rb:67
                                                                                                • ActiveRecord::Associations::HasManyThroughAssociation#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/through_association.rb:6
                                                                                                  • ActiveRecord::Reflection::ThroughReflection#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:686
                                                                                                    • ActiveRecord::Reflection::ThroughReflection#active_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                    • ActiveRecord::Reflection::ThroughReflection#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                    • Book._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                      • Book._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                        • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                      • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                                • ActiveRecord::Reflection::HasManyReflection#belongs_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:442
                                                                                            • Array#concat $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/collection_association.rb:16
                                                                                            • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/preloader/collection_association.rb:17
                                                        • Book::ActiveRecord_Relation#readonly_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:46
                                                    • Chewy::Type::Adapter::ActiveRecord#block (2 levels) in import_objects $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:129
                                                      • Chewy::Type::Adapter::ActiveRecord#primary_key $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/active_record.rb:36
                                                      • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                        • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                          • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                          • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                            • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                      • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                        • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                          • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                          • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                      • Hash#delete $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:129
                                                    • Chewy::Type::Adapter::ActiveRecord#block (2 levels) in import_objects $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:129
                                                      • Chewy::Type::Adapter::ActiveRecord#primary_key $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/active_record.rb:36
                                                      • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                        • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                          • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                          • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                            • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                      • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                        • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                          • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                          • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                      • Hash#delete $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:129
                                                • Chewy::Type::Adapter::ActiveRecord#grouped_objects $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:171
                                                  • Book::ActiveRecord_Relation#to_a $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:242
                                                    • Book::ActiveRecord_Relation#load $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:514
                                                • EntertainmentIndex::Book.block (2 levels) in import_linear $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import.rb:142
                                                  • Kernel#dup $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import.rb:143
                                                    • Kernel#initialize_dup $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import.rb:143
                                                      • Hash#initialize_copy $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import.rb:143
                                                  • Chewy::Type::Import::Routine#process $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/routine.rb:79
                                                    • Class#new $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/routine.rb:80
                                                      • Chewy::Type::Import::BulkBuilder#initialize $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_builder.rb:16
                                                        • Array#map! $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_builder.rb:20
                                                    • Chewy::Type::Import::BulkBuilder#bulk_body $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_builder.rb:26
                                                      • Kernel#method $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_builder.rb:27
                                                      • Method#to_proc $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_builder.rb:27
                                                      • Enumerable#flat_map $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_builder.rb:27
                                                        • Array#each $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_builder.rb:27
                                                          • Chewy::Type::Import::BulkBuilder#index_entry $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_builder.rb:60
                                                            • Chewy::Type::Import::BulkBuilder#index_object_ids $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_builder.rb:109
                                                              • Enumerable#each_with_object $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_builder.rb:110
                                                                • Array#each $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_builder.rb:110
                                                                  • Chewy::Type::Import::BulkBuilder#block in index_object_ids $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_builder.rb:110
                                                                    • Chewy::Type::Import::BulkBuilder#entry_id $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_builder.rb:98
                                                                      • Chewy::Type::Import::BulkBuilder#type_root $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_builder.rb:116
                                                                        • EntertainmentIndex::Book.root $GemPath0/gems/chewy-5.1.0/lib/chewy/type/mapping.rb:37
                                                                          • EntertainmentIndex::Book.root_object -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                            • EntertainmentIndex::Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                          • EntertainmentIndex::Book.root_object -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                            • EntertainmentIndex::Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                          • Chewy::Fields::Root#update_options! $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:16
                                                                            • Hash#fetch $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:17
                                                                            • Hash#fetch $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:17
                                                                            • Hash#fetch $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:18
                                                                            • Hash#fetch $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:18
                                                                            • Hash#fetch $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:19
                                                                            • Hash#except $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:9
                                                                              • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:10
                                                                                • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:10
                                                                                  • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:10
                                                                              • Hash#except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:17
                                                                                • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                  • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                    • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                  • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                    • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                  • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                    • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                  • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                    • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                  • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                    • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                  • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                    • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                            • Hash#merge! $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:20
                                                                          • Kernel#block_given? $GemPath0/gems/chewy-5.1.0/lib/chewy/type/mapping.rb:40
                                                                          • EntertainmentIndex::Book.root_object -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                            • EntertainmentIndex::Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                      • Book#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:235
                                                                        • Book#respond_to? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:449
                                                                          • Kernel#respond_to? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:450
                                                                        • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:237
                                                                        • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:243
                                                                        • Book.column_names $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:259
                                                                        • Array#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:243
                                                                        • Book#has_attribute? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:259
                                                                          • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:260
                                                                          • ActiveRecord::AttributeSet#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:22
                                                                            • ActiveRecord::LazyAttributeHash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:35
                                                                              • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:36
                                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                            • ActiveRecord::Attribute::FromDatabase#initialized? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:73
                                                                      • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                        • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                          • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                          • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                            • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                      • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_builder.rb:103
                                                                    • Integer#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                                      • Integer#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:128
                                                                    • Book#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:398
                                                                      • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                        • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                          • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                          • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                            • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                      • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                        • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                          • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                          • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                            • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                      • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:400
                                                                  • Chewy::Type::Import::BulkBuilder#block in index_object_ids $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_builder.rb:110
                                                                    • Chewy::Type::Import::BulkBuilder#entry_id $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_builder.rb:98
                                                                      • Chewy::Type::Import::BulkBuilder#type_root $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_builder.rb:116
                                                                      • Book#respond_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:235
                                                                        • Book#respond_to? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:449
                                                                          • Kernel#respond_to? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:450
                                                                        • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:237
                                                                        • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:243
                                                                        • Book.column_names $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:259
                                                                        • Array#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:243
                                                                        • Book#has_attribute? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:259
                                                                          • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:260
                                                                          • ActiveRecord::AttributeSet#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:22
                                                                            • ActiveRecord::LazyAttributeHash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:35
                                                                              • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:36
                                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                            • ActiveRecord::Attribute::FromDatabase#initialized? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:73
                                                                      • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                        • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                          • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                          • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                            • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                      • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_builder.rb:103
                                                                    • Integer#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                                      • Integer#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:128
                                                                    • Book#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:398
                                                                      • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                        • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                          • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                          • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                            • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                      • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                        • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                          • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                          • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                            • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                      • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:400
                                                            • Book#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:398
                                                              • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                  • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                  • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                    • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                      • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                    • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                              • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                  • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                  • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                    • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                      • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                    • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                              • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:400
                                                            • Chewy::Type::Import::BulkBuilder#index_object_ids $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_builder.rb:109
                                                            • Book#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:398
                                                              • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                  • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                  • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                    • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                      • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                    • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                              • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                  • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                  • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                    • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                      • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                    • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                              • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:400
                                                            • Chewy::Type::Import::BulkBuilder#parents $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_builder.rb:46
                                                              • Chewy::Type::Import::BulkBuilder#type_root $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_builder.rb:116
                                                            • Array#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                              • Array#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:24
                                                            • Chewy::Type::Import::BulkBuilder#crutches $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_builder.rb:42
                                                              • Class#new $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_builder.rb:43
                                                                • Chewy::Type::Crutch::Crutches#initialize $GemPath0/gems/chewy-5.1.0/lib/chewy/type/crutch.rb:12
                                                                  • EntertainmentIndex::Book._crutches -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                    • EntertainmentIndex::Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                  • Hash#each_key $GemPath0/gems/chewy-5.1.0/lib/chewy/type/crutch.rb:15
                                                            • EntertainmentIndex::Book.compose $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import.rb:116
                                                              • EntertainmentIndex::Book.witchcraft? $GemPath0/gems/chewy-5.1.0/lib/chewy/type/witchcraft.rb:34
                                                                • EntertainmentIndex::Book._witchcraft -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:78
                                                                  • EntertainmentIndex::Book.block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:78
                                                              • EntertainmentIndex::Book.root $GemPath0/gems/chewy-5.1.0/lib/chewy/type/mapping.rb:37
                                                                • EntertainmentIndex::Book.root_object -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                  • EntertainmentIndex::Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                • EntertainmentIndex::Book.root_object -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                  • EntertainmentIndex::Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                • Chewy::Fields::Root#update_options! $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:16
                                                                  • Hash#fetch $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:17
                                                                  • Hash#fetch $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:17
                                                                  • Hash#fetch $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:18
                                                                  • Hash#fetch $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:18
                                                                  • Hash#fetch $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:19
                                                                  • Hash#except $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:9
                                                                    • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:10
                                                                      • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:10
                                                                        • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:10
                                                                    • Hash#except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:17
                                                                      • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                        • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                          • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                        • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                          • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                        • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                          • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                        • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                          • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                        • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                          • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                        • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                          • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                  • Hash#merge! $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:20
                                                                • Kernel#block_given? $GemPath0/gems/chewy-5.1.0/lib/chewy/type/mapping.rb:40
                                                                • EntertainmentIndex::Book.root_object -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                  • EntertainmentIndex::Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                              • Chewy::Fields::Root#compose $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:74
                                                                • Chewy::Fields::Root#evaluate $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:62
                                                                  • Array#first $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:63
                                                                  • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:65
                                                                  • Proc#arity $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:66
                                                                  • Numeric#zero? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:66
                                                                  • BasicObject#instance_exec $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:67
                                                                    • Book#block in initialize $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:12
                                                                • Array#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                                  • Array#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:24
                                                                • Array#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                                  • Array#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:24
                                                                • Enumerable#each_with_object $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:84
                                                                  • Array#each $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:84
                                                                    • Chewy::Fields::Root#block in compose $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:84
                                                                      • Chewy::Fields::Base#compose $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:46
                                                                        • Chewy::Fields::Base#evaluate $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:62
                                                                          • Array#first $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:63
                                                                          • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:65
                                                                          • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:74
                                                                          • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:74
                                                                          • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:76
                                                                          • Book#__temp__479647c656 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                            • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                              • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                              • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                  • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                    • ActiveRecord::LazyAttributeHash#assign_default_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:94
                                                                                      • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:95
                                                                                      • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:97
                                                                                      • ActiveRecord::Attribute.from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:4
                                                                                        • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:5
                                                                                          • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:29
                                                                                • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                  • ActiveRecord::Attribute::FromDatabase#original_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:41
                                                                                    • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:103
                                                                                      • ActiveRecord::Type::String#type_cast_from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:22
                                                                                        • ActiveRecord::Type::String#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:97
                                                                                          • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:98
                                                                                          • ActiveRecord::Type::String#cast_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:30
                                                                                            • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:35
                                                                                            • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:35
                                                                                              • String#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:35
                                                                        • Array#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                                          • Array#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:24
                                                                      • Hash#merge! $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:85
                                                                    • Chewy::Fields::Root#block in compose $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:84
                                                                      • Chewy::Fields::Base#compose $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:46
                                                                        • Chewy::Fields::Base#evaluate $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:62
                                                                          • Array#first $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:63
                                                                          • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:65
                                                                          • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:74
                                                                          • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:74
                                                                          • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:76
                                                                          • Book#__temp__97561627 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                            • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                              • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                              • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                  • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                    • ActiveRecord::LazyAttributeHash#assign_default_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:94
                                                                                      • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:95
                                                                                      • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:97
                                                                                      • ActiveRecord::Attribute.from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:4
                                                                                        • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:5
                                                                                          • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:29
                                                                                • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                  • ActiveRecord::Attribute::FromDatabase#original_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:41
                                                                                    • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:103
                                                                                      • ActiveRecord::Type::Integer#type_cast_from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:15
                                                                                        • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:16
                                                                                        • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:17
                                                                        • Array#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                                          • Array#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:24
                                                                      • Hash#merge! $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:85
                                                                    • Chewy::Fields::Root#block in compose $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:84
                                                                      • Chewy::Fields::Base#compose $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:46
                                                                        • Chewy::Fields::Base#evaluate $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:62
                                                                          • Array#first $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:63
                                                                          • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:65
                                                                          • Proc#arity $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:66
                                                                          • Numeric#zero? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:66
                                                                          • BasicObject#instance_exec $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:67
                                                                            • Book#block (2 levels) in <class:EntertainmentIndex> /chewy_example/app/chewy/entertainment_index.rb:22
                                                                              • Book#author $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/builder/association.rb:114
                                                                                • Book#association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:157
                                                                                  • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                                  • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:160
                                                                                • ActiveRecord::Associations::BelongsToAssociation#reader $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/singular_association.rb:5
                                                                                  • ActiveRecord::Associations::BelongsToAssociation#loaded? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:58
                                                                                  • ActiveRecord::Associations::BelongsToAssociation#stale_target? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:75
                                                                                    • ActiveRecord::Associations::BelongsToAssociation#loaded? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:58
                                                                                    • ActiveRecord::Associations::BelongsToAssociation#stale_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/belongs_to_association.rb:109
                                                                                      • ActiveRecord::Reflection::BelongsToReflection#foreign_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:329
                                                                                      • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                      • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                        • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                          • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                          • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                              • Dude#__temp__e616d656 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                • Dude#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                  • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                  • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                    • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                      • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                        • ActiveRecord::LazyAttributeHash#assign_default_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:94
                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:95
                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:97
                                                                                          • ActiveRecord::Attribute.from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:4
                                                                                            • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:5
                                                                                              • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:29
                                                                                    • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                      • ActiveRecord::Attribute::FromDatabase#original_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:41
                                                                                        • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:103
                                                                                          • ActiveRecord::Type::String#type_cast_from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:22
                                                                                            • ActiveRecord::Type::String#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:97
                                                                                              • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:98
                                                                                              • ActiveRecord::Type::String#cast_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:30
                                                                                                • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:35
                                                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:35
                                                                                                  • String#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:35
                                                                        • Array#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                                          • Array#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:24
                                                                      • Hash#merge! $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:85
                                                                    • Chewy::Fields::Root#block in compose $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:84
                                                                      • Chewy::Fields::Base#compose $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:46
                                                                        • Chewy::Fields::Base#evaluate $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:62
                                                                          • Array#first $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:63
                                                                          • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:65
                                                                          • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:74
                                                                          • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:74
                                                                          • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:76
                                                                          • Book#__temp__16574786f627f59646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                            • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                              • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                              • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                  • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                        • Array#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                                          • Array#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:24
                                                                      • Hash#merge! $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:85
                                                                    • Chewy::Fields::Root#block in compose $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:84
                                                                      • Chewy::Fields::Base#compose $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:46
                                                                        • Chewy::Fields::Base#evaluate $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:62
                                                                          • Array#first $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:63
                                                                          • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:65
                                                                          • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:74
                                                                          • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:74
                                                                          • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:76
                                                                          • Book#__temp__465637362796074796f6e6 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                            • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                              • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                              • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                  • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                    • ActiveRecord::LazyAttributeHash#assign_default_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:94
                                                                                      • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:95
                                                                                      • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:97
                                                                                      • ActiveRecord::Attribute.from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:4
                                                                                        • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:5
                                                                                          • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:29
                                                                                • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                  • ActiveRecord::Attribute::FromDatabase#original_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:41
                                                                                    • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:103
                                                                                      • ActiveRecord::Type::Text#type_cast_from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:22
                                                                                        • ActiveRecord::Type::Text#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:97
                                                                                          • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:98
                                                                                          • ActiveRecord::Type::Text#cast_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:30
                                                                                            • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:35
                                                                                            • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:35
                                                                                              • String#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:35
                                                                        • Array#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                                          • Array#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:24
                                                                      • Hash#merge! $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:85
                                                                    • Chewy::Fields::Root#block in compose $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:84
                                                                      • Chewy::Fields::Base#compose $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:46
                                                                        • Chewy::Fields::Base#evaluate $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:62
                                                                          • Array#first $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:63
                                                                          • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:65
                                                                          • Proc#arity $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:66
                                                                          • Numeric#zero? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:66
                                                                          • BasicObject#instance_exec $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:67
                                                                            • Book#block (2 levels) in <class:EntertainmentIndex> /chewy_example/app/chewy/entertainment_index.rb:25
                                                                              • Book#tags $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/builder/association.rb:114
                                                                                • Book#association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:157
                                                                                  • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                                  • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:160
                                                                                • ActiveRecord::Associations::HasManyThroughAssociation#reader $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_association.rb:29
                                                                                  • ActiveRecord::Associations::HasManyThroughAssociation#stale_target? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:75
                                                                                    • ActiveRecord::Associations::HasManyThroughAssociation#loaded? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:58
                                                                                    • ActiveRecord::Associations::HasManyThroughAssociation#stale_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/through_association.rb:67
                                                                                      • ActiveRecord::Associations::HasManyThroughAssociation#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/through_association.rb:6
                                                                                        • ActiveRecord::Reflection::ThroughReflection#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:686
                                                                                          • ActiveRecord::Reflection::ThroughReflection#active_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                          • ActiveRecord::Reflection::ThroughReflection#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                          • Book._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                            • Book._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                              • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                            • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                      • ActiveRecord::Reflection::HasManyReflection#belongs_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:442
                                                                                  • Book#new_record? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:85
                                                                                    • Book#sync_with_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:515
                                                                                      • Book#update_attributes_from_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:519
                                                                                  • ActiveRecord::Associations::HasManyThroughAssociation#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:117
                                                                                    • ActiveRecord::Reflection::ThroughReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:649
                                                                                  • ActiveRecord::Associations::CollectionProxy.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                    • ActiveRecord::Associations::CollectionProxy.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                      • ActsAsTaggableOn::Tag.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                        • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_proxy.rb:34
                                                                                        • ActsAsTaggableOn::Tag.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                        • ActiveRecord::Associations::HasManyThroughAssociation#scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_association.rb:433
                                                                                          • ActiveRecord::Associations::HasManyThroughAssociation#scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:85
                                                                                            • ActiveRecord::Associations::HasManyThroughAssociation#target_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/through_association.rb:14
                                                                                              • ActiveRecord::Associations::HasManyThroughAssociation#target_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:123
                                                                                                • ActiveRecord::Associations::HasManyThroughAssociation#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:117
                                                                                                  • ActiveRecord::Reflection::ThroughReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:649
                                                                                                • ActiveRecord::Associations::HasManyThroughAssociation#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:117
                                                                                                  • ActiveRecord::Reflection::ThroughReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:649
                                                                                                • ActsAsTaggableOn::Tag.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                • ActiveRecord::AssociationRelation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                  • ActiveRecord::AssociationRelation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                    • ActsAsTaggableOn::Tag.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                      • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                  • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/association_relation.rb:3
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                • ActiveRecord::Associations::HasManyThroughAssociation#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:117
                                                                                                  • ActiveRecord::Reflection::ThroughReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:649
                                                                                                • ActsAsTaggableOn::Tag.all $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/named.rb:24
                                                                                                  • ActsAsTaggableOn::Tag.current_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:13
                                                                                                    • ActsAsTaggableOn::Tag.base_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:100
                                                                                                      • Module#< $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:101
                                                                                                      • Class#superclass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:105
                                                                                                    • Module#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:14
                                                                                                    • ActiveRecord::Scoping::ScopeRegistry.value_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:50
                                                                                                      • ActiveRecord::Scoping::ScopeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                        • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                        • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                      • ActiveRecord::Scoping::ScopeRegistry#value_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:67
                                                                                                        • ActiveRecord::Scoping::ScopeRegistry#raise_invalid_scope_type! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:80
                                                                                                          • Array#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:81
                                                                                                  • ActsAsTaggableOn::Tag.default_scoped $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/named.rb:32
                                                                                                    • ActsAsTaggableOn::Tag.relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:253
                                                                                                      • ActsAsTaggableOn::Tag.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                      • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                        • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                          • ActsAsTaggableOn::Tag.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                            • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                        • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                      • ActsAsTaggableOn::Tag.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                                    • ActsAsTaggableOn::Tag.relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:253
                                                                                                      • ActsAsTaggableOn::Tag.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                      • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                        • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                          • ActsAsTaggableOn::Tag.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                            • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                        • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                      • ActsAsTaggableOn::Tag.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                                    • ActsAsTaggableOn::Tag.build_default_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:97
                                                                                                      • ActsAsTaggableOn::Tag.abstract_class? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:130
                                                                                                      • Kernel#method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:99
                                                                                                      • Method#owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:99
                                                                                                      • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:99
                                                                                                      • ActsAsTaggableOn::Tag.default_scopes -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                        • ActsAsTaggableOn::Tag.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                      • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:102
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:30
                                                                                                      • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:31
                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#merge! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:40
                                                                                                  • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:41
                                                                                                  • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:43
                                                                                                  • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:44
                                                                                                    • ActiveRecord::Relation::Merger#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:46
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:625
                                                                                                        • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:626
                                                                                                  • ActiveRecord::Relation::Merger#merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:61
                                                                                                    • ActiveRecord::Relation::Merger#normal_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:57
                                                                                                    • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                      • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                        • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                      • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                        • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                      • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                        • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                      • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                        • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                      • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                        • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                      • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                        • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                      • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                        • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                      • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                        • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                      • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                        • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                      • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                        • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                      • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                        • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                      • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                        • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                    • ActiveRecord::Relation::Merger#merge_multi_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:132
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                      • ActiveRecord::Relation::Merger#partition_overwrites $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:177
                                                                                                      • ActiveRecord::Relation::Merger#filter_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:167
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#reordering_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#order! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:322
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#preprocess_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1119
                                                                                                          • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1120
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#validate_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1109
                                                                                                            • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1110
                                                                                                          • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                            • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                          • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                          • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                          • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1125
                                                                                                          • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1128
                                                                                                          • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1141
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#order_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#extending_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                      • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:155
                                                                                                    • ActiveRecord::Relation::Merger#merge_single_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:158
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#from_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#lock_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#create_with_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:105
                                                                                                      • Hash#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:162
                                                                                                    • ActiveRecord::Relation::Merger#merge_preloads $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:87
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#preload_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                    • ActiveRecord::Relation::Merger#merge_joins $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:108
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                      • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:109
                                                                                              • ActiveRecord::Reflection::ThroughReflection#chain $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:707
                                                                                              • Array#drop $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/through_association.rb:16
                                                                                              • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/through_association.rb:16
                                                                                                • ActiveRecord::Associations::HasManyThroughAssociation#block in target_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/through_association.rb:16
                                                                                                  • ActiveRecord::Reflection::HasManyReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                  • ActsAsTaggableOn::Tagging.all $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/named.rb:24
                                                                                                    • ActsAsTaggableOn::Tagging.current_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:13
                                                                                                      • ActsAsTaggableOn::Tagging.base_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:100
                                                                                                        • Module#< $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:101
                                                                                                        • Class#superclass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:105
                                                                                                      • Module#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:14
                                                                                                      • ActiveRecord::Scoping::ScopeRegistry.value_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:50
                                                                                                        • ActiveRecord::Scoping::ScopeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                          • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                        • ActiveRecord::Scoping::ScopeRegistry#value_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:67
                                                                                                          • ActiveRecord::Scoping::ScopeRegistry#raise_invalid_scope_type! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:80
                                                                                                            • Array#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:81
                                                                                                    • ActsAsTaggableOn::Tagging.default_scoped $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/named.rb:32
                                                                                                      • ActsAsTaggableOn::Tagging.relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:253
                                                                                                        • ActsAsTaggableOn::Tagging.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                        • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                          • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                            • ActsAsTaggableOn::Tagging.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                              • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                          • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                        • ActsAsTaggableOn::Tagging.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                                      • ActsAsTaggableOn::Tagging.relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:253
                                                                                                        • ActsAsTaggableOn::Tagging.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                        • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                          • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                            • ActsAsTaggableOn::Tagging.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                              • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                          • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                        • ActsAsTaggableOn::Tagging.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                                      • ActsAsTaggableOn::Tagging.build_default_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:97
                                                                                                        • ActsAsTaggableOn::Tagging.abstract_class? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:130
                                                                                                        • Kernel#method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:99
                                                                                                        • Method#owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:99
                                                                                                        • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:99
                                                                                                        • ActsAsTaggableOn::Tagging.default_scopes -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                          • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                        • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:102
                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:30
                                                                                                        • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:31
                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#except $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:56
                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:625
                                                                                                      • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:626
                                                                                                    • Hash#except $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:9
                                                                                                      • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:10
                                                                                                        • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:10
                                                                                                          • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:10
                                                                                                      • Hash#except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:17
                                                                                                        • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                          • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                            • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                          • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                            • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                          • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                            • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                          • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                            • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                          • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                            • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                          • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                            • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#relation_with $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:73
                                                                                                      • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                        • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                          • ActsAsTaggableOn::Tagging.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                            • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                        • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#extending_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                      • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:75
                                                                                                  • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#merge! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:40
                                                                                                    • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:41
                                                                                                    • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:43
                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:44
                                                                                                      • ActiveRecord::Relation::Merger#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:46
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:625
                                                                                                          • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:626
                                                                                                    • ActiveRecord::Relation::Merger#merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:61
                                                                                                      • ActiveRecord::Relation::Merger#normal_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:57
                                                                                                      • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                          • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                          • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                          • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                          • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                          • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                          • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                          • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                          • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                          • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                          • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                          • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                          • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                      • ActiveRecord::Relation::Merger#merge_multi_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:132
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                        • ActiveRecord::Relation::Merger#partition_overwrites $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:177
                                                                                                        • ActiveRecord::Relation::Merger#filter_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:167
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#reordering_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#order! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:322
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#preprocess_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1119
                                                                                                            • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1120
                                                                                                            • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#validate_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1109
                                                                                                              • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1110
                                                                                                            • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                              • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                            • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                            • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                            • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1125
                                                                                                            • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1128
                                                                                                            • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1141
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#order_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                            • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#extending_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                        • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:155
                                                                                                      • ActiveRecord::Relation::Merger#merge_single_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:158
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#from_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#lock_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#create_with_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:105
                                                                                                        • Hash#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:162
                                                                                                      • ActiveRecord::Relation::Merger#merge_preloads $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:87
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#preload_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                      • ActiveRecord::Relation::Merger#merge_joins $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:108
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                        • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:109
                                                                                            • ActiveRecord::Associations::HasManyThroughAssociation#association_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:95
                                                                                              • ActiveRecord::Associations::HasManyThroughAssociation#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:117
                                                                                                • ActiveRecord::Reflection::ThroughReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:649
                                                                                              • ActiveRecord::Associations::HasManyThroughAssociation#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:117
                                                                                                • ActiveRecord::Reflection::ThroughReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:649
                                                                                              • ActsAsTaggableOn::Tag.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                                                                                • ActsAsTaggableOn::Tag.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                                                                                  • ActsAsTaggableOn::Tag.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                                                                    • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                      • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                        • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                        • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                    • ActsAsTaggableOn::Tag.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                      • ActsAsTaggableOn::Tag.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                  • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                                                                                    • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                                                                      • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                                                                        • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                      • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                    • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                                                                                      • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                                                                                        • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                                                                                          • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                            • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                              • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                              • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                              • ActiveRecord::Associations::AssociationScope.scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:4
                                                                                                • ActiveRecord::Associations::AssociationScope#scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:31
                                                                                                  • ActiveRecord::Associations::HasManyThroughAssociation#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:117
                                                                                                    • ActiveRecord::Reflection::ThroughReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:649
                                                                                                  • ActsAsTaggableOn::Tag.unscoped $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:32
                                                                                                    • Kernel#block_given? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:33
                                                                                                    • ActsAsTaggableOn::Tag.relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:253
                                                                                                      • ActsAsTaggableOn::Tag.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                      • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                        • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                          • ActsAsTaggableOn::Tag.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                            • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                        • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                      • ActsAsTaggableOn::Tag.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                                  • ActiveRecord::Associations::AliasTracker.empty $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:10
                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:11
                                                                                                      • Hash#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:11
                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:11
                                                                                                      • ActiveRecord::Associations::AliasTracker#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:54
                                                                                                  • ActiveRecord::Reflection::ThroughReflection#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                  • Kernel#Array $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:38
                                                                                                    • NilClass#to_a $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:38
                                                                                                  • ActsAsTaggableOn::Tag::ActiveRecord_Relation#extending! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:832
                                                                                                    • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:834
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#extending_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#extending_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#extending_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                    • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:837
                                                                                                  • ActiveRecord::Associations::AssociationScope#add_constraints $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:131
                                                                                                    • ActiveRecord::Reflection::ThroughReflection#chain $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:707
                                                                                                    • ActiveRecord::Reflection::ThroughReflection#scope_chain $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:736
                                                                                                    • ActiveRecord::Associations::AssociationScope#construct_tables $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:65
                                                                                                      • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:66
                                                                                                        • ActiveRecord::Associations::AssociationScope#block in construct_tables $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:66
                                                                                                          • ActiveRecord::Associations::AssociationScope#table_name_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:179
                                                                                                            • ActsAsTaggableOn::Tag.table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:125
                                                                                                          • ActiveRecord::Associations::AssociationScope#table_alias_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:74
                                                                                                            • ActiveRecord::Reflection::ThroughReflection#plural_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                            • ActiveRecord::Associations::AssociationScope#alias_suffix $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:175
                                                                                                              • ActiveRecord::Reflection::ThroughReflection#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                            • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:75
                                                                                                          • ActiveRecord::Associations::AliasTracker#aliased_table_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:59
                                                                                                            • Numeric#zero? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:60
                                                                                                            • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:63
                                                                                                              • Arel::Table#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:14
                                                                                                                • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:15
                                                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:22
                                                                                                        • ActiveRecord::Associations::AssociationScope#block in construct_tables $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:66
                                                                                                          • ActiveRecord::Associations::AssociationScope#table_name_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:179
                                                                                                            • ActiveRecord::Reflection::HasManyReflection#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:251
                                                                                                              • BasicObject#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:252
                                                                                                              • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:253
                                                                                                              • Kernel#kind_of? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:253
                                                                                                            • ActiveRecord::Reflection::HasManyReflection#table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:134
                                                                                                              • ActiveRecord::Reflection::HasManyReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                              • ActsAsTaggableOn::Tagging.table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:125
                                                                                                          • BasicObject#!= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:69
                                                                                                            • ActiveRecord::Reflection::HasManyReflection#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:251
                                                                                                              • BasicObject#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:252
                                                                                                              • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:253
                                                                                                              • Kernel#kind_of? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:253
                                                                                                          • ActiveRecord::Associations::AssociationScope#table_alias_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:74
                                                                                                            • ActiveRecord::Associations::AssociationScope#alias_suffix $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:175
                                                                                                              • ActiveRecord::Reflection::ThroughReflection#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                            • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:75
                                                                                                          • ActiveRecord::Associations::AliasTracker#aliased_table_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:59
                                                                                                            • Numeric#zero? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:60
                                                                                                            • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:63
                                                                                                              • Arel::Table#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:14
                                                                                                                • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:15
                                                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:22
                                                                                                    • Array#last $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:137
                                                                                                    • Array#last $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:138
                                                                                                    • ActiveRecord::Associations::AssociationScope#last_chain_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:98
                                                                                                      • ActiveRecord::Reflection::HasManyReflection#join_keys $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:162
                                                                                                        • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:329
                                                                                                        • ActiveRecord::Reflection::HasManyReflection#active_record_primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:342
                                                                                                        • #<Class:ActiveRecord::Reflection::AbstractReflection::JoinKeys>#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:163
                                                                                                          • Struct#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:163
                                                                                                      • ActiveRecord::Reflection::AbstractReflection::JoinKeys#key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:100
                                                                                                      • ActiveRecord::Reflection::AbstractReflection::JoinKeys#foreign_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:101
                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:103
                                                                                                      • Book#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:354
                                                                                                        • Book#read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:84
                                                                                                          • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:85
                                                                                                          • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:86
                                                                                                          • Book.primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/primary_key.rb:72
                                                                                                          • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                            • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                            • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                              • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                                • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                              • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                      • ActiveRecord::Associations::AssociationScope#bind $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:93
                                                                                                        • ActiveRecord::Associations::AssociationScope#column_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:84
                                                                                                          • ActiveRecord::ConnectionAdapters::SchemaCache#columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:48
                                                                                                        • ActiveRecord::Associations::AssociationScope#bind_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:89
                                                                                                          • ActiveRecord::Associations::AssociationScope::BindSubstitution#bind_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:13
                                                                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#substitute_at $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:280
                                                                                                              • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:281
                                                                                                                • BasicObject#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:281
                                                                                                            • ActsAsTaggableOn::Tag::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                            • ActiveRecord::Associations::AssociationScope.block in create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:21
                                                                                                            • ActsAsTaggableOn::Tag::ActiveRecord_Relation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                      • Arel::Table#[] $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:99
                                                                                                        • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                          • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                      • Arel::Attributes::Attribute#eq $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:15
                                                                                                        • Arel::Attributes::Attribute#quoted_node $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:207
                                                                                                          • Arel::Nodes.build_quoted $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:81
                                                                                                            • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                        • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:16
                                                                                                          • Arel::Nodes::Equality#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                            • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#where $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:568
                                                                                                        • Arel::Nodes::Equality#eql? $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:22
                                                                                                          • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                                                          • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                                                        • Arel::Nodes::Equality#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:16
                                                                                                          • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:17
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                          • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                            • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                                • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                                • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                  • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                    • Array#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_Relation#where! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:578
                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:579
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_Relation#build_where $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:947
                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:949
                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:949
                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:951
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_Relation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                            • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                      • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:107
                                                                                                      • Book.base_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:100
                                                                                                        • Module#< $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:101
                                                                                                        • Class#superclass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:105
                                                                                                      • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:107
                                                                                                      • ActiveRecord::Associations::AssociationScope#bind $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:93
                                                                                                        • ActiveRecord::Associations::AssociationScope#column_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:84
                                                                                                          • ActiveRecord::ConnectionAdapters::SchemaCache#columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:48
                                                                                                        • ActiveRecord::Associations::AssociationScope#bind_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:89
                                                                                                          • ActiveRecord::Associations::AssociationScope::BindSubstitution#bind_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:13
                                                                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#substitute_at $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:280
                                                                                                              • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:281
                                                                                                                • BasicObject#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:281
                                                                                                            • ActsAsTaggableOn::Tag::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                            • ActiveRecord::Associations::AssociationScope.block in create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:21
                                                                                                            • ActsAsTaggableOn::Tag::ActiveRecord_Relation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                      • Arel::Table#[] $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:99
                                                                                                        • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                          • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                      • Arel::Attributes::Attribute#eq $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:15
                                                                                                        • Arel::Attributes::Attribute#quoted_node $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:207
                                                                                                          • Arel::Nodes.build_quoted $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:81
                                                                                                            • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                        • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:16
                                                                                                          • Arel::Nodes::Equality#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                            • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#where $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:568
                                                                                                        • Arel::Nodes::Equality#eql? $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:22
                                                                                                          • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                                                          • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                                                        • Arel::Nodes::Equality#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:16
                                                                                                          • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:17
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                          • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                            • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                                • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                                • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                  • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                    • Array#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_Relation#where! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:578
                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:579
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_Relation#build_where $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:947
                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:949
                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:949
                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:951
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_Relation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                            • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                    • Enumerable#each_with_index $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:141
                                                                                                      • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:141
                                                                                                        • ActiveRecord::Associations::AssociationScope#block in add_constraints $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:141
                                                                                                          • Array#shift $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:142
                                                                                                          • Array#first $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:142
                                                                                                          • Array#last $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:144
                                                                                                          • ActiveRecord::Associations::AssociationScope#next_chain_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:115
                                                                                                            • ActiveRecord::Reflection::ThroughReflection#join_keys $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:758
                                                                                                              • ActiveRecord::Reflection::ThroughReflection#source_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:670
                                                                                                                • ActiveRecord::Reflection::ThroughReflection#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:686
                                                                                                                  • ActiveRecord::Reflection::ThroughReflection#active_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                                  • ActiveRecord::Reflection::ThroughReflection#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                                  • Book._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                                    • Book._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                      • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                    • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                                                • ActiveRecord::Reflection::HasManyReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                                • ActiveRecord::Reflection::ThroughReflection#source_reflection_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:801
                                                                                                                • ActsAsTaggableOn::Tagging._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                                  • ActsAsTaggableOn::Tagging._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                    • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                  • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                                              • ActiveRecord::Reflection::BelongsToReflection#join_keys $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:614
                                                                                                                • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:470
                                                                                                                • ActiveRecord::Reflection::BelongsToReflection#association_primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:338
                                                                                                                  • ActiveRecord::Reflection::BelongsToReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                                  • ActiveRecord::Reflection::BelongsToReflection#primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:580
                                                                                                                    • ActsAsTaggableOn::Tag.primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/primary_key.rb:72
                                                                                                                • ActiveRecord::Reflection::BelongsToReflection#foreign_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:329
                                                                                                                • #<Class:ActiveRecord::Reflection::AbstractReflection::JoinKeys>#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:616
                                                                                                                  • Struct#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:616
                                                                                                            • ActiveRecord::Reflection::AbstractReflection::JoinKeys#key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:117
                                                                                                            • ActiveRecord::Reflection::AbstractReflection::JoinKeys#foreign_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:118
                                                                                                            • Arel::Table#[] $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:99
                                                                                                              • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                                • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                            • Arel::Table#[] $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:99
                                                                                                              • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                                • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                            • Arel::Attributes::Attribute#eq $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:15
                                                                                                              • Arel::Attributes::Attribute#quoted_node $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:207
                                                                                                                • Arel::Nodes.build_quoted $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:81
                                                                                                                  • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                  • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:16
                                                                                                                • Arel::Nodes::Equality#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                  • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                            • ActiveRecord::Reflection::ThroughReflection#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:640
                                                                                                              • ActiveRecord::Reflection::ThroughReflection#source_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:670
                                                                                                                • ActiveRecord::Reflection::ThroughReflection#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:686
                                                                                                                  • ActiveRecord::Reflection::ThroughReflection#active_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                                  • ActiveRecord::Reflection::ThroughReflection#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                                  • Book._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                                    • Book._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                      • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                    • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                                                • ActiveRecord::Reflection::HasManyReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                                • ActiveRecord::Reflection::ThroughReflection#source_reflection_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:801
                                                                                                                • ActsAsTaggableOn::Tagging._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                                  • ActsAsTaggableOn::Tagging._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                    • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                  • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                                            • ActiveRecord::Associations::AssociationScope#join $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:80
                                                                                                              • Arel::Table#create_on $GemPath0/gems/arel-6.0.4/lib/arel/factory_methods.rb:29
                                                                                                                • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/factory_methods.rb:30
                                                                                                                  • Arel::Nodes::On#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/unary.rb:7
                                                                                                                    • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/unary.rb:8
                                                                                                              • ActiveRecord::Associations::AssociationScope#join_type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:42
                                                                                                              • Arel::Table#create_join $GemPath0/gems/arel-6.0.4/lib/arel/factory_methods.rb:17
                                                                                                                • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/factory_methods.rb:18
                                                                                                                  • Arel::Nodes::InnerJoin#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                    • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                            • ActsAsTaggableOn::Tag::ActiveRecord_Relation#joins $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:428
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_if_method_has_arguments! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1160
                                                                                                                • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1161
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                                • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                  • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                                      • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                                      • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                      • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                        • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                          • Array#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#joins! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:433
                                                                                                                • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:434
                                                                                                                • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:435
                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#joins_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                  • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                          • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:154
                                                                                                            • ActiveRecord::Associations::AssociationScope#block (2 levels) in add_constraints $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:154
                                                                                                              • ActiveRecord::Associations::AssociationScope#eval_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:190
                                                                                                                • ActsAsTaggableOn::Tag.unscoped $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:32
                                                                                                                  • Kernel#block_given? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:33
                                                                                                                  • ActsAsTaggableOn::Tag.relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:253
                                                                                                                    • ActsAsTaggableOn::Tag.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                                    • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                                      • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                                        • ActsAsTaggableOn::Tag.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                                          • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                                      • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                                    • ActsAsTaggableOn::Tag.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                                                • BasicObject#instance_exec $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:191
                                                                                                                  • ActsAsTaggableOn::Tag::ActiveRecord_Relation#block in initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/builder/association.rb:65
                                                                                                                    • BasicObject#instance_exec $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/builder/association.rb:65
                                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#block (3 levels) in initialize_acts_as_taggable_on_core $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:33
                                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:317
                                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_if_method_has_arguments! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1160
                                                                                                                            • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1161
                                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                                            • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                              • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                                                  • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                                                  • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                  • ActsAsTaggableOn::Tag::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:322
                                                                                                                            • ActsAsTaggableOn::Tag::ActiveRecord_Relation#preprocess_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1119
                                                                                                                              • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1120
                                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#validate_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1109
                                                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1110
                                                                                                                              • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                              • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                              • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                              • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1125
                                                                                                                              • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1128
                                                                                                                              • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1141
                                                                                                                            • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                            • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                              • ActiveRecord::Reflection::ThroughReflection#scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#except $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:56
                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:625
                                                                                                                  • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:626
                                                                                                                • Hash#except $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:9
                                                                                                                  • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:10
                                                                                                                    • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:10
                                                                                                                      • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:10
                                                                                                                  • Hash#except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:17
                                                                                                                    • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                                      • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                                        • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                                      • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                                        • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                                      • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                                        • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#relation_with $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:73
                                                                                                                  • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                                    • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                                      • ActsAsTaggableOn::Tag.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                                        • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                                  • ActsAsTaggableOn::Tag::ActiveRecord_Relation#extending_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                  • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:75
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#merge! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:40
                                                                                                                • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:41
                                                                                                                • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:43
                                                                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:44
                                                                                                                  • ActiveRecord::Relation::Merger#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:46
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:625
                                                                                                                      • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:626
                                                                                                                • ActiveRecord::Relation::Merger#merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:61
                                                                                                                  • ActiveRecord::Relation::Merger#normal_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:57
                                                                                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                  • ActiveRecord::Relation::Merger#merge_multi_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:132
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActiveRecord::Relation::Merger#partition_overwrites $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:177
                                                                                                                    • ActiveRecord::Relation::Merger#filter_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:167
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#reordering_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:322
                                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#preprocess_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1119
                                                                                                                        • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1120
                                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_Relation#validate_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1109
                                                                                                                          • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1110
                                                                                                                        • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                          • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                        • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                        • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                        • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1125
                                                                                                                        • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1128
                                                                                                                        • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1141
                                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#extending_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:155
                                                                                                                  • ActiveRecord::Relation::Merger#merge_single_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:158
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#from_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#lock_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#create_with_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:105
                                                                                                                    • Hash#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:162
                                                                                                                  • ActiveRecord::Relation::Merger#merge_preloads $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:87
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#preload_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                  • ActiveRecord::Relation::Merger#merge_joins $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:108
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:109
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#includes! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:149
                                                                                                                • Array#reject! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:150
                                                                                                                  • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:150
                                                                                                                • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:151
                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                • Array#| $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:153
                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#includes_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                  • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#unscope_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#unscope! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:393
                                                                                                                • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:394
                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#unscope_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#unscope_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                  • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:397
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • Array#| $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:168
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                        • ActiveRecord::Associations::AssociationScope#block in add_constraints $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:141
                                                                                                          • Array#shift $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:142
                                                                                                          • Array#first $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:142
                                                                                                          • Array#last $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:144
                                                                                                          • ActiveRecord::Reflection::HasManyReflection#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:251
                                                                                                            • BasicObject#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:252
                                                                                                          • ActiveRecord::Reflection::HasManyReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                          • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:154
                                                                                                            • ActiveRecord::Associations::AssociationScope#block (2 levels) in add_constraints $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:154
                                                                                                              • ActiveRecord::Associations::AssociationScope#eval_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:190
                                                                                                                • ActsAsTaggableOn::Tagging.unscoped $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:32
                                                                                                                  • Kernel#block_given? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:33
                                                                                                                  • ActsAsTaggableOn::Tagging.relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:253
                                                                                                                    • ActsAsTaggableOn::Tagging.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                                    • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                                      • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                                        • ActsAsTaggableOn::Tagging.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                                          • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                                      • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                                    • ActsAsTaggableOn::Tagging.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                                                • BasicObject#instance_exec $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:191
                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/builder/association.rb:65
                                                                                                                    • BasicObject#instance_exec $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/builder/association.rb:65
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block (3 levels) in initialize_acts_as_taggable_on_core $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:28
                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:144
                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_if_method_has_arguments! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1160
                                                                                                                            • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1161
                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                                            • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                              • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                                                  • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                                                  • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:149
                                                                                                                            • Array#reject! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:150
                                                                                                                              • Symbol#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:16
                                                                                                                                • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:17
                                                                                                                                • Symbol#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:17
                                                                                                                            • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:151
                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                            • Array#| $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:153
                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:317
                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_if_method_has_arguments! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1160
                                                                                                                            • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1161
                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                                            • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                              • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                                                  • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                                                  • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:322
                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#preprocess_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1119
                                                                                                                              • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1120
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#validate_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1109
                                                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1110
                                                                                                                              • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                              • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                              • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                              • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1125
                                                                                                                              • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1128
                                                                                                                              • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1141
                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:568
                                                                                                                          • Hash#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:569
                                                                                                                          • Hash#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:571
                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                                            • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                              • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                                                  • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                                                  • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:578
                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:579
                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#sanitize_for_mass_assignment $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/forbidden_attributes_protection.rb:19
                                                                                                                              • Kernel#respond_to? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/forbidden_attributes_protection.rb:20
                                                                                                                            • ActiveRecord::PredicateBuilder.references $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:91
                                                                                                                              • Enumerable#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:92
                                                                                                                                • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:92
                                                                                                                                  • ActiveRecord::PredicateBuilder.block in references $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:92
                                                                                                                                    • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:93
                                                                                                                                    • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:96
                                                                                                                                    • String#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:97
                                                                                                                              • Array#compact $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:99
                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#references! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:202
                                                                                                                              • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:203
                                                                                                                              • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:204
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#references_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                              • Array#| $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:206
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#references_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#build_where $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:947
                                                                                                                              • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:949
                                                                                                                              • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:949
                                                                                                                              • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:951
                                                                                                                              • ActiveRecord::PredicateBuilder.resolve_column_aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:8
                                                                                                                                • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:11
                                                                                                                                • Hash#keys $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:12
                                                                                                                                • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:12
                                                                                                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:12
                                                                                                                                    • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:12
                                                                                                                                    • ActiveRecord::PredicateBuilder.block in resolve_column_aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:12
                                                                                                                                      • ActsAsTaggableOn::Tagging.attribute_alias? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:218
                                                                                                                                        • ActsAsTaggableOn::Tagging.attribute_aliases -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                          • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                        • Symbol#to_s $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                        • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#create_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:966
                                                                                                                                • Enumerable#partition $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:967
                                                                                                                                  • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:967
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in create_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:967
                                                                                                                                      • ActiveRecord::PredicateBuilder.can_be_bound? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:149
                                                                                                                                        • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:150
                                                                                                                                        • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:151
                                                                                                                                        • ActiveRecord::PredicateBuilder.handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:131
                                                                                                                                          • Enumerable#detect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                            • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                • ActiveRecord::Base.=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:228
                                                                                                                                                  • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:229
                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                          • Array#last $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                      • ActsAsTaggableOn::Tagging.columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attributes.rb:97
                                                                                                                                      • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:969
                                                                                                                                      • Hash#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:969
                                                                                                                                      • ActsAsTaggableOn::Tagging.reflect_on_aggregation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:61
                                                                                                                                        • ActsAsTaggableOn::Tagging.aggregate_reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                          • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                        • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:62
                                                                                                                                • Enumerable#partition $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:973
                                                                                                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:973
                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:48
                                                                                                                                  • ActsAsTaggableOn::Tagging.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                                                                                                                    • ActsAsTaggableOn::Tagging.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                                                                                                                      • ActsAsTaggableOn::Tagging.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                                                                                                        • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                                          • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                            • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                            • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                        • ActsAsTaggableOn::Tagging.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                          • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                      • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                                                                                                                        • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                                                                                                          • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                                                                                                            • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                                                                                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                          • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                                                                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                        • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                                                                                                                          • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                                                                                                                            • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                                                                                                                              • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                                                • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                                  • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                  • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:982
                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in create_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:982
                                                                                                                                    • ActsAsTaggableOn::Tagging.columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attributes.rb:97
                                                                                                                                    • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:983
                                                                                                                                    • Array#push $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:983
                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#substitute_at $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:280
                                                                                                                                      • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:281
                                                                                                                                        • BasicObject#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:281
                                                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:987
                                                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:994
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                              • ActsAsTaggableOn::Tagging.expand_hash_conditions_for_aggregates $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/sanitization.rb:56
                                                                                                                                • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/sanitization.rb:58
                                                                                                                                  • ActsAsTaggableOn::Tagging.block in expand_hash_conditions_for_aggregates $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/sanitization.rb:58
                                                                                                                                    • Symbol#to_sym $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/sanitization.rb:59
                                                                                                                                    • ActsAsTaggableOn::Tagging.reflect_on_aggregation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:61
                                                                                                                                      • ActsAsTaggableOn::Tagging.aggregate_reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                        • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                      • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:62
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#add_relations_to_bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1166
                                                                                                                                • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1167
                                                                                                                                • Hash#each_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1168
                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in add_relations_to_bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1168
                                                                                                                                    • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1169
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#add_relations_to_bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1166
                                                                                                                                      • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1167
                                                                                                                              • ActiveRecord::PredicateBuilder.build_from_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:20
                                                                                                                                • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:23
                                                                                                                                  • ActiveRecord::PredicateBuilder.block in build_from_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:23
                                                                                                                                    • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:26
                                                                                                                                    • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:38
                                                                                                                                    • String#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:40
                                                                                                                                    • ActiveRecord::PredicateBuilder.expand $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:52
                                                                                                                                      • ActsAsTaggableOn::Tagging._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                                                        • ActsAsTaggableOn::Tagging._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                          • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                                                                      • Arel::Table#[] $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:99
                                                                                                                                        • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                                                          • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                                                      • ActiveRecord::PredicateBuilder.build $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:126
                                                                                                                                        • ActiveRecord::PredicateBuilder.handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:131
                                                                                                                                          • Enumerable#detect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                            • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                • ActiveRecord::Base.=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:228
                                                                                                                                                  • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:229
                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                          • Array#last $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                        • ActiveRecord::PredicateBuilder.block in <class:PredicateBuilder> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:117
                                                                                                                                          • Arel::Attributes::Attribute#eq $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:15
                                                                                                                                            • Arel::Attributes::Attribute#quoted_node $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:207
                                                                                                                                              • Arel::Nodes.build_quoted $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:81
                                                                                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                                            • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:16
                                                                                                                                              • Arel::Nodes::Equality#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                                                • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                                                    • Array#concat $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:45
                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                              • ActiveRecord::Reflection::ThroughReflection#scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#unscope_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#unscope! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:393
                                                                                                                • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:394
                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#unscope_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#unscope_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                  • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:397
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • Array#| $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:168
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                            • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:30
                                                                                              • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:31
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                  • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                      • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                      • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                      • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                        • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                          • Array#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#merge! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:40
                                                                                                • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:41
                                                                                                • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:43
                                                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:44
                                                                                                  • ActiveRecord::Relation::Merger#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:46
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:625
                                                                                                      • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:626
                                                                                                • ActiveRecord::Relation::Merger#merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:61
                                                                                                  • ActiveRecord::Relation::Merger#normal_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:57
                                                                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                      • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                      • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                      • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                      • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                  • ActiveRecord::Relation::Merger#merge_multi_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:132
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                    • ActiveRecord::Relation::Merger#partition_overwrites $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:177
                                                                                                    • ActiveRecord::Relation::Merger#filter_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:167
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#reordering_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#order! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:322
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#preprocess_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1119
                                                                                                        • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1120
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#validate_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1109
                                                                                                          • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1110
                                                                                                        • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                          • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                        • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                        • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                        • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1125
                                                                                                        • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1128
                                                                                                        • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1141
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#order_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#extending_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                    • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:155
                                                                                                  • ActiveRecord::Relation::Merger#merge_single_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:158
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#from_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#lock_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#create_with_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:105
                                                                                                    • Hash#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:162
                                                                                                  • ActiveRecord::Relation::Merger#merge_preloads $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:87
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#preload_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                  • ActiveRecord::Relation::Merger#merge_joins $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:108
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                    • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:109
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#joins! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:433
                                                                                                      • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:434
                                                                                                      • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:435
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#joins_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_association.rb:435
                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#merge! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:40
                                                                                          • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:41
                                                                                          • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:43
                                                                                          • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:44
                                                                                            • ActiveRecord::Relation::Merger#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:46
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:625
                                                                                                • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:626
                                                                                          • ActiveRecord::Relation::Merger#merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:61
                                                                                            • ActiveRecord::Relation::Merger#normal_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:57
                                                                                            • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                            • ActiveRecord::Relation::Merger#merge_multi_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:132
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                              • ActiveRecord::Relation::Merger#partition_overwrites $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:177
                                                                                              • ActiveRecord::Relation::Merger#filter_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:167
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#reordering_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#order! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:322
                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#preprocess_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1119
                                                                                                  • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1120
                                                                                                  • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#validate_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1109
                                                                                                    • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1110
                                                                                                  • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                    • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                  • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                  • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                  • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1125
                                                                                                  • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1128
                                                                                                  • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1141
                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#order_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                  • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#extending_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                              • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:155
                                                                                            • ActiveRecord::Relation::Merger#merge_single_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:158
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#from_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#lock_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#create_with_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:105
                                                                                              • Hash#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:162
                                                                                            • ActiveRecord::Relation::Merger#merge_preloads $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:87
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#preload_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                            • ActiveRecord::Relation::Merger#merge_joins $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:108
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                              • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:109
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#joins! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:433
                                                                                                • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:434
                                                                                                • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:435
                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#joins_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                  • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:46
                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#to_ary $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_proxy.rb:944
                                                                                  • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#load_target $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_proxy.rb:44
                                                                                    • ActiveRecord::Associations::HasManyThroughAssociation#load_target $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_association.rb:401
                                                                                      • ActiveRecord::Associations::HasManyThroughAssociation#find_target? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:175
                                                                                        • ActiveRecord::Associations::HasManyThroughAssociation#loaded? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:58
                                                                                      • ActiveRecord::Associations::HasManyThroughAssociation#loaded! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:63
                                                                                        • ActiveRecord::Associations::HasManyThroughAssociation#stale_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/through_association.rb:67
                                                                                          • ActiveRecord::Associations::HasManyThroughAssociation#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/through_association.rb:6
                                                                                            • ActiveRecord::Reflection::ThroughReflection#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:686
                                                                                              • ActiveRecord::Reflection::ThroughReflection#active_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                              • ActiveRecord::Reflection::ThroughReflection#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                              • Book._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                • Book._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                  • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                          • ActiveRecord::Reflection::HasManyReflection#belongs_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:442
                                                                                  • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_proxy.rb:945
                                                                                    • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_proxy.rb:945
                                                                                      • Array#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_proxy.rb:945
                                                                                • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:46
                                                                                  • ActsAsTaggableOn::Tag#__temp__e616d656 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                    • ActsAsTaggableOn::Tag#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                      • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                            • ActiveRecord::LazyAttributeHash#assign_default_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:94
                                                                                              • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:95
                                                                                              • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:97
                                                                                              • ActiveRecord::Attribute.from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:4
                                                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:5
                                                                                                  • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:29
                                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                          • ActiveRecord::Attribute::FromDatabase#original_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:41
                                                                                            • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:103
                                                                                              • ActiveRecord::Type::String#type_cast_from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:22
                                                                                                • ActiveRecord::Type::String#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:97
                                                                                                  • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:98
                                                                                                  • ActiveRecord::Type::String#cast_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:30
                                                                                                    • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:35
                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:35
                                                                                                      • String#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:35
                                                                                  • ActsAsTaggableOn::Tag#__temp__e616d656 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                    • ActsAsTaggableOn::Tag#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                      • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                        • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                          • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                            • ActiveRecord::LazyAttributeHash#assign_default_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:94
                                                                                              • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:95
                                                                                              • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:97
                                                                                              • ActiveRecord::Attribute.from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:4
                                                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:5
                                                                                                  • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:29
                                                                                        • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                          • ActiveRecord::Attribute::FromDatabase#original_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:41
                                                                                            • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:103
                                                                                              • ActiveRecord::Type::String#type_cast_from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:22
                                                                                                • ActiveRecord::Type::String#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:97
                                                                                                  • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:98
                                                                                                  • ActiveRecord::Type::String#cast_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:30
                                                                                                    • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:35
                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:35
                                                                                                      • String#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:35
                                                                        • Array#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                                          • Array#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:24
                                                                      • Hash#merge! $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:85
                                                                • Hash#as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:145
                                                                  • Enumerable#map $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                    • Hash#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                      • Hash#block in as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                        • Symbol#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                        • String#as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:80
                                                                      • Hash#block in as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                        • Symbol#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                        • Integer#as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:92
                                                                      • Hash#block in as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                        • Symbol#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                        • String#as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:80
                                                                      • Hash#block in as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                        • Symbol#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                        • Integer#as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:92
                                                                      • Hash#block in as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                        • Symbol#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                        • String#as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:80
                                                                      • Hash#block in as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                        • Symbol#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                        • Array#as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:139
                                                                          • Array#map $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:140
                                                                            • Array#block in as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:140
                                                                              • String#as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:80
                                                                            • Array#block in as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:140
                                                                              • String#as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:80
                                                                  • #<Class:Hash>#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                          • Chewy::Type::Import::BulkBuilder#index_entry $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_builder.rb:60
                                                            • Chewy::Type::Import::BulkBuilder#index_object_ids $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_builder.rb:109
                                                            • Book#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:398
                                                              • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                  • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                  • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                    • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                      • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                    • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                              • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                  • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                  • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                    • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                      • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                    • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                              • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:400
                                                            • Chewy::Type::Import::BulkBuilder#index_object_ids $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_builder.rb:109
                                                            • Book#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:398
                                                              • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                  • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                  • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                    • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                      • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                    • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                              • Book#__temp__9646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                  • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                  • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                    • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                      • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                    • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                              • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:400
                                                            • Chewy::Type::Import::BulkBuilder#parents $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_builder.rb:46
                                                              • Chewy::Type::Import::BulkBuilder#type_root $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_builder.rb:116
                                                            • Array#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                              • Array#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:24
                                                            • Chewy::Type::Import::BulkBuilder#crutches $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_builder.rb:42
                                                            • EntertainmentIndex::Book.compose $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import.rb:116
                                                              • EntertainmentIndex::Book.witchcraft? $GemPath0/gems/chewy-5.1.0/lib/chewy/type/witchcraft.rb:34
                                                                • EntertainmentIndex::Book._witchcraft -> block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:78
                                                                  • EntertainmentIndex::Book.block (2 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:78
                                                              • EntertainmentIndex::Book.root $GemPath0/gems/chewy-5.1.0/lib/chewy/type/mapping.rb:37
                                                                • EntertainmentIndex::Book.root_object -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                  • EntertainmentIndex::Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                • EntertainmentIndex::Book.root_object -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                  • EntertainmentIndex::Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                • Chewy::Fields::Root#update_options! $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:16
                                                                  • Hash#fetch $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:17
                                                                  • Hash#fetch $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:17
                                                                  • Hash#fetch $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:18
                                                                  • Hash#fetch $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:18
                                                                  • Hash#fetch $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:19
                                                                  • Hash#except $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:9
                                                                    • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:10
                                                                      • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:10
                                                                        • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:10
                                                                    • Hash#except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:17
                                                                      • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                        • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                          • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                        • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                          • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                        • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                          • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                        • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                          • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                        • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                          • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                        • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                          • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                  • Hash#merge! $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:20
                                                                • Kernel#block_given? $GemPath0/gems/chewy-5.1.0/lib/chewy/type/mapping.rb:40
                                                                • EntertainmentIndex::Book.root_object -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                  • EntertainmentIndex::Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                              • Chewy::Fields::Root#compose $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:74
                                                                • Chewy::Fields::Root#evaluate $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:62
                                                                  • Array#first $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:63
                                                                  • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:65
                                                                  • Proc#arity $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:66
                                                                  • Numeric#zero? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:66
                                                                  • BasicObject#instance_exec $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:67
                                                                    • Book#block in initialize $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:12
                                                                • Array#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                                  • Array#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:24
                                                                • Array#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                                  • Array#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:24
                                                                • Enumerable#each_with_object $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:84
                                                                  • Array#each $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:84
                                                                    • Chewy::Fields::Root#block in compose $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:84
                                                                      • Chewy::Fields::Base#compose $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:46
                                                                        • Chewy::Fields::Base#evaluate $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:62
                                                                          • Array#first $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:63
                                                                          • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:65
                                                                          • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:74
                                                                          • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:74
                                                                          • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:76
                                                                          • Book#__temp__479647c656 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                            • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                              • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                              • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                  • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                    • ActiveRecord::LazyAttributeHash#assign_default_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:94
                                                                                      • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:95
                                                                                      • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:97
                                                                                      • ActiveRecord::Attribute.from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:4
                                                                                        • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:5
                                                                                          • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:29
                                                                                • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                  • ActiveRecord::Attribute::FromDatabase#original_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:41
                                                                                    • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:103
                                                                                      • ActiveRecord::Type::String#type_cast_from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:22
                                                                                        • ActiveRecord::Type::String#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:97
                                                                                          • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:98
                                                                                          • ActiveRecord::Type::String#cast_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:30
                                                                                            • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:35
                                                                                            • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:35
                                                                                              • String#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:35
                                                                        • Array#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                                          • Array#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:24
                                                                      • Hash#merge! $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:85
                                                                    • Chewy::Fields::Root#block in compose $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:84
                                                                      • Chewy::Fields::Base#compose $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:46
                                                                        • Chewy::Fields::Base#evaluate $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:62
                                                                          • Array#first $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:63
                                                                          • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:65
                                                                          • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:74
                                                                          • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:74
                                                                          • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:76
                                                                          • Book#__temp__97561627 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                            • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                              • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                              • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                  • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                    • ActiveRecord::LazyAttributeHash#assign_default_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:94
                                                                                      • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:95
                                                                                      • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:97
                                                                                      • ActiveRecord::Attribute.from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:4
                                                                                        • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:5
                                                                                          • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:29
                                                                                • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                  • ActiveRecord::Attribute::FromDatabase#original_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:41
                                                                                    • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:103
                                                                                      • ActiveRecord::Type::Integer#type_cast_from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:15
                                                                                        • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:16
                                                                                        • Integer#to_i $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/integer.rb:17
                                                                        • Array#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                                          • Array#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:24
                                                                      • Hash#merge! $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:85
                                                                    • Chewy::Fields::Root#block in compose $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:84
                                                                      • Chewy::Fields::Base#compose $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:46
                                                                        • Chewy::Fields::Base#evaluate $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:62
                                                                          • Array#first $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:63
                                                                          • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:65
                                                                          • Proc#arity $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:66
                                                                          • Numeric#zero? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:66
                                                                          • BasicObject#instance_exec $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:67
                                                                            • Book#block (2 levels) in <class:EntertainmentIndex> /chewy_example/app/chewy/entertainment_index.rb:22
                                                                              • Book#author $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/builder/association.rb:114
                                                                                • Book#association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:157
                                                                                  • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                                  • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:160
                                                                                • ActiveRecord::Associations::BelongsToAssociation#reader $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/singular_association.rb:5
                                                                                  • ActiveRecord::Associations::BelongsToAssociation#loaded? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:58
                                                                                  • ActiveRecord::Associations::BelongsToAssociation#stale_target? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:75
                                                                                    • ActiveRecord::Associations::BelongsToAssociation#loaded? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:58
                                                                                    • ActiveRecord::Associations::BelongsToAssociation#stale_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/belongs_to_association.rb:109
                                                                                      • ActiveRecord::Reflection::BelongsToReflection#foreign_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:329
                                                                                      • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                      • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                        • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                                          • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                                          • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                              • Dude#__temp__e616d656 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                                • Dude#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                  • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                  • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                    • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                      • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                        • ActiveRecord::LazyAttributeHash#assign_default_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:94
                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:95
                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:97
                                                                                          • ActiveRecord::Attribute.from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:4
                                                                                            • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:5
                                                                                              • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:29
                                                                                    • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                      • ActiveRecord::Attribute::FromDatabase#original_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:41
                                                                                        • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:103
                                                                                          • ActiveRecord::Type::String#type_cast_from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:22
                                                                                            • ActiveRecord::Type::String#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:97
                                                                                              • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:98
                                                                                              • ActiveRecord::Type::String#cast_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:30
                                                                                                • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:35
                                                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:35
                                                                                                  • String#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:35
                                                                        • Array#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                                          • Array#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:24
                                                                      • Hash#merge! $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:85
                                                                    • Chewy::Fields::Root#block in compose $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:84
                                                                      • Chewy::Fields::Base#compose $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:46
                                                                        • Chewy::Fields::Base#evaluate $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:62
                                                                          • Array#first $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:63
                                                                          • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:65
                                                                          • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:74
                                                                          • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:74
                                                                          • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:76
                                                                          • Book#__temp__16574786f627f59646 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                            • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                              • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                              • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                  • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                        • Array#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                                          • Array#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:24
                                                                      • Hash#merge! $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:85
                                                                    • Chewy::Fields::Root#block in compose $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:84
                                                                      • Chewy::Fields::Base#compose $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:46
                                                                        • Chewy::Fields::Base#evaluate $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:62
                                                                          • Array#first $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:63
                                                                          • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:65
                                                                          • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:74
                                                                          • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:74
                                                                          • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:76
                                                                          • Book#__temp__465637362796074796f6e6 $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:48
                                                                            • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                              • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                              • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                  • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                    • ActiveRecord::LazyAttributeHash#assign_default_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:94
                                                                                      • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:95
                                                                                      • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:97
                                                                                      • ActiveRecord::Attribute.from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:4
                                                                                        • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:5
                                                                                          • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:29
                                                                                • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                  • ActiveRecord::Attribute::FromDatabase#original_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:41
                                                                                    • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:103
                                                                                      • ActiveRecord::Type::Text#type_cast_from_database $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:22
                                                                                        • ActiveRecord::Type::Text#type_cast $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:97
                                                                                          • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/value.rb:98
                                                                                          • ActiveRecord::Type::Text#cast_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:30
                                                                                            • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:35
                                                                                            • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:35
                                                                                              • String#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/type/string.rb:35
                                                                        • Array#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                                          • Array#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:24
                                                                      • Hash#merge! $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:85
                                                                    • Chewy::Fields::Root#block in compose $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:84
                                                                      • Chewy::Fields::Base#compose $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:46
                                                                        • Chewy::Fields::Base#evaluate $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:62
                                                                          • Array#first $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:63
                                                                          • Kernel#is_a? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:65
                                                                          • Proc#arity $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:66
                                                                          • Numeric#zero? $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:66
                                                                          • BasicObject#instance_exec $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/base.rb:67
                                                                            • Book#block (2 levels) in <class:EntertainmentIndex> /chewy_example/app/chewy/entertainment_index.rb:25
                                                                              • Book#tags $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/builder/association.rb:114
                                                                                • Book#association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:157
                                                                                  • Book#association_instance_get $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:171
                                                                                  • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations.rb:160
                                                                                • ActiveRecord::Associations::HasManyThroughAssociation#reader $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_association.rb:29
                                                                                  • ActiveRecord::Associations::HasManyThroughAssociation#stale_target? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:75
                                                                                    • ActiveRecord::Associations::HasManyThroughAssociation#loaded? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:58
                                                                                    • ActiveRecord::Associations::HasManyThroughAssociation#stale_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/through_association.rb:67
                                                                                      • ActiveRecord::Associations::HasManyThroughAssociation#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/through_association.rb:6
                                                                                        • ActiveRecord::Reflection::ThroughReflection#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:686
                                                                                          • ActiveRecord::Reflection::ThroughReflection#active_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                          • ActiveRecord::Reflection::ThroughReflection#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                          • Book._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                            • Book._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                              • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                            • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                      • ActiveRecord::Reflection::HasManyReflection#belongs_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:442
                                                                                  • Book#new_record? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/persistence.rb:85
                                                                                    • Book#sync_with_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:515
                                                                                      • Book#update_attributes_from_transaction_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:519
                                                                                  • ActiveRecord::Associations::HasManyThroughAssociation#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:117
                                                                                    • ActiveRecord::Reflection::ThroughReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:649
                                                                                  • ActiveRecord::Associations::CollectionProxy.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                    • ActiveRecord::Associations::CollectionProxy.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                      • ActsAsTaggableOn::Tag.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                        • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_proxy.rb:34
                                                                                        • ActsAsTaggableOn::Tag.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                        • ActiveRecord::Associations::HasManyThroughAssociation#scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_association.rb:433
                                                                                          • ActiveRecord::Associations::HasManyThroughAssociation#scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:85
                                                                                            • ActiveRecord::Associations::HasManyThroughAssociation#target_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/through_association.rb:14
                                                                                              • ActiveRecord::Associations::HasManyThroughAssociation#target_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:123
                                                                                                • ActiveRecord::Associations::HasManyThroughAssociation#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:117
                                                                                                  • ActiveRecord::Reflection::ThroughReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:649
                                                                                                • ActiveRecord::Associations::HasManyThroughAssociation#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:117
                                                                                                  • ActiveRecord::Reflection::ThroughReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:649
                                                                                                • ActsAsTaggableOn::Tag.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                • ActiveRecord::AssociationRelation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                  • ActiveRecord::AssociationRelation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                    • ActsAsTaggableOn::Tag.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                      • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                  • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/association_relation.rb:3
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                • ActiveRecord::Associations::HasManyThroughAssociation#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:117
                                                                                                  • ActiveRecord::Reflection::ThroughReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:649
                                                                                                • ActsAsTaggableOn::Tag.all $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/named.rb:24
                                                                                                  • ActsAsTaggableOn::Tag.current_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:13
                                                                                                    • ActsAsTaggableOn::Tag.base_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:100
                                                                                                      • Module#< $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:101
                                                                                                      • Class#superclass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:105
                                                                                                    • Module#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:14
                                                                                                    • ActiveRecord::Scoping::ScopeRegistry.value_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:50
                                                                                                      • ActiveRecord::Scoping::ScopeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                        • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                        • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                      • ActiveRecord::Scoping::ScopeRegistry#value_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:67
                                                                                                        • ActiveRecord::Scoping::ScopeRegistry#raise_invalid_scope_type! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:80
                                                                                                          • Array#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:81
                                                                                                  • ActsAsTaggableOn::Tag.default_scoped $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/named.rb:32
                                                                                                    • ActsAsTaggableOn::Tag.relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:253
                                                                                                      • ActsAsTaggableOn::Tag.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                      • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                        • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                          • ActsAsTaggableOn::Tag.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                            • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                        • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                      • ActsAsTaggableOn::Tag.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                                    • ActsAsTaggableOn::Tag.relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:253
                                                                                                      • ActsAsTaggableOn::Tag.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                      • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                        • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                          • ActsAsTaggableOn::Tag.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                            • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                        • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                      • ActsAsTaggableOn::Tag.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                                    • ActsAsTaggableOn::Tag.build_default_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:97
                                                                                                      • ActsAsTaggableOn::Tag.abstract_class? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:130
                                                                                                      • Kernel#method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:99
                                                                                                      • Method#owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:99
                                                                                                      • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:99
                                                                                                      • ActsAsTaggableOn::Tag.default_scopes -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                        • ActsAsTaggableOn::Tag.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                      • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:102
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:30
                                                                                                      • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:31
                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#merge! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:40
                                                                                                  • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:41
                                                                                                  • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:43
                                                                                                  • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:44
                                                                                                    • ActiveRecord::Relation::Merger#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:46
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:625
                                                                                                        • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:626
                                                                                                  • ActiveRecord::Relation::Merger#merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:61
                                                                                                    • ActiveRecord::Relation::Merger#normal_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:57
                                                                                                    • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                      • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                        • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                      • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                        • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                      • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                        • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                      • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                        • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                      • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                        • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                      • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                        • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                      • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                        • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                      • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                        • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                      • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                        • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                      • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                        • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                      • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                        • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                      • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                        • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                    • ActiveRecord::Relation::Merger#merge_multi_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:132
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                      • ActiveRecord::Relation::Merger#partition_overwrites $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:177
                                                                                                      • ActiveRecord::Relation::Merger#filter_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:167
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#reordering_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#order! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:322
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#preprocess_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1119
                                                                                                          • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1120
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#validate_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1109
                                                                                                            • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1110
                                                                                                          • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                            • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                          • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                          • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                          • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1125
                                                                                                          • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1128
                                                                                                          • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1141
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#order_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#extending_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                      • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:155
                                                                                                    • ActiveRecord::Relation::Merger#merge_single_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:158
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#from_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#lock_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#create_with_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:105
                                                                                                      • Hash#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:162
                                                                                                    • ActiveRecord::Relation::Merger#merge_preloads $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:87
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#preload_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                    • ActiveRecord::Relation::Merger#merge_joins $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:108
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                      • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:109
                                                                                              • ActiveRecord::Reflection::ThroughReflection#chain $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:707
                                                                                              • Array#drop $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/through_association.rb:16
                                                                                              • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/through_association.rb:16
                                                                                                • ActiveRecord::Associations::HasManyThroughAssociation#block in target_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/through_association.rb:16
                                                                                                  • ActiveRecord::Reflection::HasManyReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                  • ActsAsTaggableOn::Tagging.all $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/named.rb:24
                                                                                                    • ActsAsTaggableOn::Tagging.current_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:13
                                                                                                      • ActsAsTaggableOn::Tagging.base_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:100
                                                                                                        • Module#< $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:101
                                                                                                        • Class#superclass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:105
                                                                                                      • Module#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:14
                                                                                                      • ActiveRecord::Scoping::ScopeRegistry.value_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:50
                                                                                                        • ActiveRecord::Scoping::ScopeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                          • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                        • ActiveRecord::Scoping::ScopeRegistry#value_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:67
                                                                                                          • ActiveRecord::Scoping::ScopeRegistry#raise_invalid_scope_type! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:80
                                                                                                            • Array#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping.rb:81
                                                                                                    • ActsAsTaggableOn::Tagging.default_scoped $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/named.rb:32
                                                                                                      • ActsAsTaggableOn::Tagging.relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:253
                                                                                                        • ActsAsTaggableOn::Tagging.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                        • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                          • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                            • ActsAsTaggableOn::Tagging.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                              • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                          • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                        • ActsAsTaggableOn::Tagging.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                                      • ActsAsTaggableOn::Tagging.relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:253
                                                                                                        • ActsAsTaggableOn::Tagging.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                        • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                          • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                            • ActsAsTaggableOn::Tagging.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                              • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                          • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                        • ActsAsTaggableOn::Tagging.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                                      • ActsAsTaggableOn::Tagging.build_default_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:97
                                                                                                        • ActsAsTaggableOn::Tagging.abstract_class? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:130
                                                                                                        • Kernel#method $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:99
                                                                                                        • Method#owner $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:99
                                                                                                        • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:99
                                                                                                        • ActsAsTaggableOn::Tagging.default_scopes -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                          • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                        • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:102
                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:30
                                                                                                        • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:31
                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#except $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:56
                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:625
                                                                                                      • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:626
                                                                                                    • Hash#except $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:9
                                                                                                      • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:10
                                                                                                        • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:10
                                                                                                          • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:10
                                                                                                      • Hash#except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:17
                                                                                                        • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                          • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                            • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                          • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                            • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                          • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                            • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                          • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                            • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                          • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                            • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                          • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                            • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#relation_with $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:73
                                                                                                      • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                        • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                          • ActsAsTaggableOn::Tagging.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                            • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                        • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#extending_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                      • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:75
                                                                                                  • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#merge! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:40
                                                                                                    • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:41
                                                                                                    • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:43
                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:44
                                                                                                      • ActiveRecord::Relation::Merger#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:46
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:625
                                                                                                          • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:626
                                                                                                    • ActiveRecord::Relation::Merger#merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:61
                                                                                                      • ActiveRecord::Relation::Merger#normal_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:57
                                                                                                      • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                          • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                          • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                          • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                          • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                          • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                          • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                          • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                          • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                          • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                          • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                          • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                          • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                      • ActiveRecord::Relation::Merger#merge_multi_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:132
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                        • ActiveRecord::Relation::Merger#partition_overwrites $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:177
                                                                                                        • ActiveRecord::Relation::Merger#filter_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:167
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#reordering_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#order! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:322
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#preprocess_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1119
                                                                                                            • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1120
                                                                                                            • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#validate_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1109
                                                                                                              • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1110
                                                                                                            • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                              • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                            • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                            • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                            • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1125
                                                                                                            • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1128
                                                                                                            • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1141
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#order_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                            • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#extending_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                        • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:155
                                                                                                      • ActiveRecord::Relation::Merger#merge_single_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:158
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#from_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#lock_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#create_with_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:105
                                                                                                        • Hash#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:162
                                                                                                      • ActiveRecord::Relation::Merger#merge_preloads $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:87
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#preload_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                      • ActiveRecord::Relation::Merger#merge_joins $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:108
                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                        • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:109
                                                                                            • ActiveRecord::Associations::HasManyThroughAssociation#association_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:95
                                                                                              • ActiveRecord::Associations::HasManyThroughAssociation#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:117
                                                                                                • ActiveRecord::Reflection::ThroughReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:649
                                                                                              • ActiveRecord::Associations::HasManyThroughAssociation#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:117
                                                                                                • ActiveRecord::Reflection::ThroughReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:649
                                                                                              • ActsAsTaggableOn::Tag.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                                                                                • ActsAsTaggableOn::Tag.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                                                                                  • ActsAsTaggableOn::Tag.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                                                                    • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                      • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                        • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                        • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                    • ActsAsTaggableOn::Tag.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                      • ActsAsTaggableOn::Tag.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                  • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                                                                                    • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                                                                      • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                                                                        • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                      • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                    • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                                                                                      • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                                                                                        • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                                                                                          • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                            • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                              • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                              • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                              • ActiveRecord::Associations::AssociationScope.scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:4
                                                                                                • ActiveRecord::Associations::AssociationScope#scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:31
                                                                                                  • ActiveRecord::Associations::HasManyThroughAssociation#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:117
                                                                                                    • ActiveRecord::Reflection::ThroughReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:649
                                                                                                  • ActsAsTaggableOn::Tag.unscoped $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:32
                                                                                                    • Kernel#block_given? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:33
                                                                                                    • ActsAsTaggableOn::Tag.relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:253
                                                                                                      • ActsAsTaggableOn::Tag.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                      • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                        • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                          • ActsAsTaggableOn::Tag.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                            • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                        • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                      • ActsAsTaggableOn::Tag.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                                  • ActiveRecord::Associations::AliasTracker.empty $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:10
                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:11
                                                                                                      • Hash#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:11
                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:11
                                                                                                      • ActiveRecord::Associations::AliasTracker#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:54
                                                                                                  • ActiveRecord::Reflection::ThroughReflection#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                  • Kernel#Array $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:38
                                                                                                    • NilClass#to_a $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:38
                                                                                                  • ActsAsTaggableOn::Tag::ActiveRecord_Relation#extending! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:832
                                                                                                    • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:834
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#extending_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#extending_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#extending_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                    • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:837
                                                                                                  • ActiveRecord::Associations::AssociationScope#add_constraints $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:131
                                                                                                    • ActiveRecord::Reflection::ThroughReflection#chain $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:707
                                                                                                    • ActiveRecord::Reflection::ThroughReflection#scope_chain $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:736
                                                                                                    • ActiveRecord::Associations::AssociationScope#construct_tables $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:65
                                                                                                      • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:66
                                                                                                        • ActiveRecord::Associations::AssociationScope#block in construct_tables $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:66
                                                                                                          • ActiveRecord::Associations::AssociationScope#table_name_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:179
                                                                                                            • ActsAsTaggableOn::Tag.table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:125
                                                                                                          • ActiveRecord::Associations::AssociationScope#table_alias_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:74
                                                                                                            • ActiveRecord::Reflection::ThroughReflection#plural_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                            • ActiveRecord::Associations::AssociationScope#alias_suffix $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:175
                                                                                                              • ActiveRecord::Reflection::ThroughReflection#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                            • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:75
                                                                                                          • ActiveRecord::Associations::AliasTracker#aliased_table_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:59
                                                                                                            • Numeric#zero? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:60
                                                                                                            • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:63
                                                                                                              • Arel::Table#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:14
                                                                                                                • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:15
                                                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:22
                                                                                                        • ActiveRecord::Associations::AssociationScope#block in construct_tables $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:66
                                                                                                          • ActiveRecord::Associations::AssociationScope#table_name_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:179
                                                                                                            • ActiveRecord::Reflection::HasManyReflection#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:251
                                                                                                              • BasicObject#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:252
                                                                                                              • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:253
                                                                                                              • Kernel#kind_of? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:253
                                                                                                            • ActiveRecord::Reflection::HasManyReflection#table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:134
                                                                                                              • ActiveRecord::Reflection::HasManyReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                              • ActsAsTaggableOn::Tagging.table_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/model_schema.rb:125
                                                                                                          • BasicObject#!= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:69
                                                                                                            • ActiveRecord::Reflection::HasManyReflection#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:251
                                                                                                              • BasicObject#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:252
                                                                                                              • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:253
                                                                                                              • Kernel#kind_of? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:253
                                                                                                          • ActiveRecord::Associations::AssociationScope#table_alias_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:74
                                                                                                            • ActiveRecord::Associations::AssociationScope#alias_suffix $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:175
                                                                                                              • ActiveRecord::Reflection::ThroughReflection#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                            • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:75
                                                                                                          • ActiveRecord::Associations::AliasTracker#aliased_table_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:59
                                                                                                            • Numeric#zero? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:60
                                                                                                            • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/alias_tracker.rb:63
                                                                                                              • Arel::Table#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:14
                                                                                                                • String#to_s $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:15
                                                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:22
                                                                                                    • Array#last $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:137
                                                                                                    • Array#last $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:138
                                                                                                    • ActiveRecord::Associations::AssociationScope#last_chain_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:98
                                                                                                      • ActiveRecord::Reflection::HasManyReflection#join_keys $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:162
                                                                                                        • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:329
                                                                                                        • ActiveRecord::Reflection::HasManyReflection#active_record_primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:342
                                                                                                        • #<Class:ActiveRecord::Reflection::AbstractReflection::JoinKeys>#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:163
                                                                                                          • Struct#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:163
                                                                                                      • ActiveRecord::Reflection::AbstractReflection::JoinKeys#key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:100
                                                                                                      • ActiveRecord::Reflection::AbstractReflection::JoinKeys#foreign_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:101
                                                                                                      • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:103
                                                                                                      • Book#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods.rb:354
                                                                                                        • Book#read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:84
                                                                                                          • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:85
                                                                                                          • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:86
                                                                                                          • Book.primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/primary_key.rb:72
                                                                                                          • Book#_read_attribute $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:92
                                                                                                            • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/read.rb:93
                                                                                                            • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:30
                                                                                                              • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set.rb:9
                                                                                                                • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_set/builder.rb:39
                                                                                                              • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute.rb:35
                                                                                                      • ActiveRecord::Associations::AssociationScope#bind $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:93
                                                                                                        • ActiveRecord::Associations::AssociationScope#column_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:84
                                                                                                          • ActiveRecord::ConnectionAdapters::SchemaCache#columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:48
                                                                                                        • ActiveRecord::Associations::AssociationScope#bind_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:89
                                                                                                          • ActiveRecord::Associations::AssociationScope::BindSubstitution#bind_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:13
                                                                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#substitute_at $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:280
                                                                                                              • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:281
                                                                                                                • BasicObject#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:281
                                                                                                            • ActsAsTaggableOn::Tag::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                            • ActiveRecord::Associations::AssociationScope.block in create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:21
                                                                                                            • ActsAsTaggableOn::Tag::ActiveRecord_Relation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                      • Arel::Table#[] $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:99
                                                                                                        • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                          • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                      • Arel::Attributes::Attribute#eq $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:15
                                                                                                        • Arel::Attributes::Attribute#quoted_node $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:207
                                                                                                          • Arel::Nodes.build_quoted $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:81
                                                                                                            • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                        • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:16
                                                                                                          • Arel::Nodes::Equality#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                            • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#where $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:568
                                                                                                        • Arel::Nodes::Equality#eql? $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:22
                                                                                                          • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                                                          • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                                                        • Arel::Nodes::Equality#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:16
                                                                                                          • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:17
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                          • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                            • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                                • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                                • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                  • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                    • Array#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_Relation#where! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:578
                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:579
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_Relation#build_where $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:947
                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:949
                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:949
                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:951
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_Relation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                            • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                      • Kernel#class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:107
                                                                                                      • Book.base_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:100
                                                                                                        • Module#< $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:101
                                                                                                        • Class#superclass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:105
                                                                                                      • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:107
                                                                                                      • ActiveRecord::Associations::AssociationScope#bind $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:93
                                                                                                        • ActiveRecord::Associations::AssociationScope#column_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:84
                                                                                                          • ActiveRecord::ConnectionAdapters::SchemaCache#columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/schema_cache.rb:48
                                                                                                        • ActiveRecord::Associations::AssociationScope#bind_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:89
                                                                                                          • ActiveRecord::Associations::AssociationScope::BindSubstitution#bind_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:13
                                                                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#substitute_at $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:280
                                                                                                              • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:281
                                                                                                                • BasicObject#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:281
                                                                                                            • ActsAsTaggableOn::Tag::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                            • ActiveRecord::Associations::AssociationScope.block in create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:21
                                                                                                            • ActsAsTaggableOn::Tag::ActiveRecord_Relation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                      • Arel::Table#[] $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:99
                                                                                                        • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                          • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                      • Arel::Attributes::Attribute#eq $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:15
                                                                                                        • Arel::Attributes::Attribute#quoted_node $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:207
                                                                                                          • Arel::Nodes.build_quoted $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:81
                                                                                                            • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                        • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:16
                                                                                                          • Arel::Nodes::Equality#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                            • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#where $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:568
                                                                                                        • Arel::Nodes::Equality#eql? $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:22
                                                                                                          • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                                                          • Kernel#class $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:23
                                                                                                        • Arel::Nodes::Equality#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:16
                                                                                                          • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:17
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                          • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                            • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                                • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                                • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                  • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                    • Array#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_Relation#where! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:578
                                                                                                          • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:579
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_Relation#build_where $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:947
                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:949
                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:949
                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:951
                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_Relation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                            • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                    • Enumerable#each_with_index $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:141
                                                                                                      • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:141
                                                                                                        • ActiveRecord::Associations::AssociationScope#block in add_constraints $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:141
                                                                                                          • Array#shift $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:142
                                                                                                          • Array#first $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:142
                                                                                                          • Array#last $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:144
                                                                                                          • ActiveRecord::Associations::AssociationScope#next_chain_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:115
                                                                                                            • ActiveRecord::Reflection::ThroughReflection#join_keys $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:758
                                                                                                              • ActiveRecord::Reflection::ThroughReflection#source_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:670
                                                                                                                • ActiveRecord::Reflection::ThroughReflection#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:686
                                                                                                                  • ActiveRecord::Reflection::ThroughReflection#active_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                                  • ActiveRecord::Reflection::ThroughReflection#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                                  • Book._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                                    • Book._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                      • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                    • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                                                • ActiveRecord::Reflection::HasManyReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                                • ActiveRecord::Reflection::ThroughReflection#source_reflection_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:801
                                                                                                                • ActsAsTaggableOn::Tagging._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                                  • ActsAsTaggableOn::Tagging._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                    • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                  • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                                              • ActiveRecord::Reflection::BelongsToReflection#join_keys $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:614
                                                                                                                • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:470
                                                                                                                • ActiveRecord::Reflection::BelongsToReflection#association_primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:338
                                                                                                                  • ActiveRecord::Reflection::BelongsToReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                                  • ActiveRecord::Reflection::BelongsToReflection#primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:580
                                                                                                                    • ActsAsTaggableOn::Tag.primary_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attribute_methods/primary_key.rb:72
                                                                                                                • ActiveRecord::Reflection::BelongsToReflection#foreign_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:329
                                                                                                                • #<Class:ActiveRecord::Reflection::AbstractReflection::JoinKeys>#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:616
                                                                                                                  • Struct#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:616
                                                                                                            • ActiveRecord::Reflection::AbstractReflection::JoinKeys#key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:117
                                                                                                            • ActiveRecord::Reflection::AbstractReflection::JoinKeys#foreign_key $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:118
                                                                                                            • Arel::Table#[] $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:99
                                                                                                              • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                                • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                            • Arel::Table#[] $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:99
                                                                                                              • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                                • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                            • Arel::Attributes::Attribute#eq $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:15
                                                                                                              • Arel::Attributes::Attribute#quoted_node $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:207
                                                                                                                • Arel::Nodes.build_quoted $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:81
                                                                                                                  • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                  • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                              • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:16
                                                                                                                • Arel::Nodes::Equality#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                  • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                            • ActiveRecord::Reflection::ThroughReflection#type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:640
                                                                                                              • ActiveRecord::Reflection::ThroughReflection#source_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:670
                                                                                                                • ActiveRecord::Reflection::ThroughReflection#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:686
                                                                                                                  • ActiveRecord::Reflection::ThroughReflection#active_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                                  • ActiveRecord::Reflection::ThroughReflection#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                                  • Book._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                                    • Book._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                      • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                    • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                                                • ActiveRecord::Reflection::HasManyReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                                • ActiveRecord::Reflection::ThroughReflection#source_reflection_name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:801
                                                                                                                • ActsAsTaggableOn::Tagging._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                                  • ActsAsTaggableOn::Tagging._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                    • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                  • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                                            • ActiveRecord::Associations::AssociationScope#join $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:80
                                                                                                              • Arel::Table#create_on $GemPath0/gems/arel-6.0.4/lib/arel/factory_methods.rb:29
                                                                                                                • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/factory_methods.rb:30
                                                                                                                  • Arel::Nodes::On#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/unary.rb:7
                                                                                                                    • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/unary.rb:8
                                                                                                              • ActiveRecord::Associations::AssociationScope#join_type $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:42
                                                                                                              • Arel::Table#create_join $GemPath0/gems/arel-6.0.4/lib/arel/factory_methods.rb:17
                                                                                                                • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/factory_methods.rb:18
                                                                                                                  • Arel::Nodes::InnerJoin#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                    • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                            • ActsAsTaggableOn::Tag::ActiveRecord_Relation#joins $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:428
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_if_method_has_arguments! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1160
                                                                                                                • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1161
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                                • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                  • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                                      • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                                      • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                      • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                        • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                          • Array#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#joins! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:433
                                                                                                                • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:434
                                                                                                                • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:435
                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#joins_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                  • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                          • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:154
                                                                                                            • ActiveRecord::Associations::AssociationScope#block (2 levels) in add_constraints $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:154
                                                                                                              • ActiveRecord::Associations::AssociationScope#eval_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:190
                                                                                                                • ActsAsTaggableOn::Tag.unscoped $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:32
                                                                                                                  • Kernel#block_given? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:33
                                                                                                                  • ActsAsTaggableOn::Tag.relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:253
                                                                                                                    • ActsAsTaggableOn::Tag.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                                    • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                                      • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                                        • ActsAsTaggableOn::Tag.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                                          • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                                      • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                                    • ActsAsTaggableOn::Tag.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                                                • BasicObject#instance_exec $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:191
                                                                                                                  • ActsAsTaggableOn::Tag::ActiveRecord_Relation#block in initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/builder/association.rb:65
                                                                                                                    • BasicObject#instance_exec $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/builder/association.rb:65
                                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#block (3 levels) in initialize_acts_as_taggable_on_core $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:33
                                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:317
                                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_if_method_has_arguments! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1160
                                                                                                                            • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1161
                                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                                            • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                              • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                                                  • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                                                  • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                  • ActsAsTaggableOn::Tag::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                                          • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:322
                                                                                                                            • ActsAsTaggableOn::Tag::ActiveRecord_Relation#preprocess_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1119
                                                                                                                              • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1120
                                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#validate_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1109
                                                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1110
                                                                                                                              • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                              • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                              • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                              • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1125
                                                                                                                              • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1128
                                                                                                                              • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1141
                                                                                                                            • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                            • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                              • ActiveRecord::Reflection::ThroughReflection#scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#except $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:56
                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:625
                                                                                                                  • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:626
                                                                                                                • Hash#except $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:9
                                                                                                                  • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:10
                                                                                                                    • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:10
                                                                                                                      • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:10
                                                                                                                  • Hash#except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:17
                                                                                                                    • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                                      • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                                        • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                                      • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                                        • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                                      • Hash#block in except! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                                        • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/except.rb:18
                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#relation_with $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:73
                                                                                                                  • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                                    • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                                      • ActsAsTaggableOn::Tag.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                                        • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                                    • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                                  • ActsAsTaggableOn::Tag::ActiveRecord_Relation#extending_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                  • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:75
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#merge! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:40
                                                                                                                • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:41
                                                                                                                • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:43
                                                                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:44
                                                                                                                  • ActiveRecord::Relation::Merger#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:46
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:625
                                                                                                                      • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:626
                                                                                                                • ActiveRecord::Relation::Merger#merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:61
                                                                                                                  • ActiveRecord::Relation::Merger#normal_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:57
                                                                                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                                  • ActiveRecord::Relation::Merger#merge_multi_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:132
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActiveRecord::Relation::Merger#partition_overwrites $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:177
                                                                                                                    • ActiveRecord::Relation::Merger#filter_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:167
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#reordering_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:322
                                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#preprocess_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1119
                                                                                                                        • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1120
                                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_Relation#validate_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1109
                                                                                                                          • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1110
                                                                                                                        • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                          • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                        • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                        • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                        • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1125
                                                                                                                        • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1128
                                                                                                                        • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1141
                                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#extending_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:155
                                                                                                                  • ActiveRecord::Relation::Merger#merge_single_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:158
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#from_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#lock_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#create_with_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:105
                                                                                                                    • Hash#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:162
                                                                                                                  • ActiveRecord::Relation::Merger#merge_preloads $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:87
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#preload_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                  • ActiveRecord::Relation::Merger#merge_joins $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:108
                                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                    • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:109
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#includes! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:149
                                                                                                                • Array#reject! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:150
                                                                                                                  • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:150
                                                                                                                • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:151
                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                • Array#| $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:153
                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#includes_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                  • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#unscope_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#unscope! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:393
                                                                                                                • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:394
                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#unscope_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#unscope_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                  • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:397
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • Array#| $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:168
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                        • ActiveRecord::Associations::AssociationScope#block in add_constraints $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:141
                                                                                                          • Array#shift $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:142
                                                                                                          • Array#first $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:142
                                                                                                          • Array#last $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:144
                                                                                                          • ActiveRecord::Reflection::HasManyReflection#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:251
                                                                                                            • BasicObject#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:252
                                                                                                          • ActiveRecord::Reflection::HasManyReflection#klass $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:290
                                                                                                          • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:154
                                                                                                            • ActiveRecord::Associations::AssociationScope#block (2 levels) in add_constraints $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:154
                                                                                                              • ActiveRecord::Associations::AssociationScope#eval_scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:190
                                                                                                                • ActsAsTaggableOn::Tagging.unscoped $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:32
                                                                                                                  • Kernel#block_given? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/scoping/default.rb:33
                                                                                                                  • ActsAsTaggableOn::Tagging.relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:253
                                                                                                                    • ActsAsTaggableOn::Tagging.arel_table $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:237
                                                                                                                    • ActiveRecord::Relation.create $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:105
                                                                                                                      • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:111
                                                                                                                        • ActsAsTaggableOn::Tagging.relation_delegate_class $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:8
                                                                                                                          • Kernel#hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:9
                                                                                                                      • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:106
                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:23
                                                                                                                    • ActsAsTaggableOn::Tagging.finder_needs_type_condition? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/inheritance.rb:77
                                                                                                                • BasicObject#instance_exec $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:191
                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/builder/association.rb:65
                                                                                                                    • BasicObject#instance_exec $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/builder/association.rb:65
                                                                                                                      • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block (3 levels) in initialize_acts_as_taggable_on_core $GemPath0/gems/acts-as-taggable-on-5.0.0/lib/acts_as_taggable_on/taggable/core.rb:28
                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:144
                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_if_method_has_arguments! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1160
                                                                                                                            • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1161
                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                                            • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                              • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                                                  • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                                                  • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:149
                                                                                                                            • Array#reject! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:150
                                                                                                                              • Symbol#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:16
                                                                                                                                • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:17
                                                                                                                                • Symbol#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:17
                                                                                                                            • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:151
                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                            • Array#| $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:153
                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#includes_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:317
                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_if_method_has_arguments! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1160
                                                                                                                            • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1161
                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                                            • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                              • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                                                  • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                                                  • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:322
                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#preprocess_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1119
                                                                                                                              • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1120
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#validate_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1109
                                                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1110
                                                                                                                              • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                                              • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                              • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                                              • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1125
                                                                                                                              • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1128
                                                                                                                              • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1141
                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                        • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:568
                                                                                                                          • Hash#== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:569
                                                                                                                          • Hash#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:571
                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                                            • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                              • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                                                  • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                                                  • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                                                          • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:578
                                                                                                                            • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:579
                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#sanitize_for_mass_assignment $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/forbidden_attributes_protection.rb:19
                                                                                                                              • Kernel#respond_to? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/forbidden_attributes_protection.rb:20
                                                                                                                            • ActiveRecord::PredicateBuilder.references $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:91
                                                                                                                              • Enumerable#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:92
                                                                                                                                • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:92
                                                                                                                                  • ActiveRecord::PredicateBuilder.block in references $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:92
                                                                                                                                    • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:93
                                                                                                                                    • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:96
                                                                                                                                    • String#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:97
                                                                                                                              • Array#compact $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:99
                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#references! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:202
                                                                                                                              • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:203
                                                                                                                              • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:204
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#references_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                              • Array#| $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:206
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#references_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#build_where $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:947
                                                                                                                              • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:949
                                                                                                                              • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:949
                                                                                                                              • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:951
                                                                                                                              • ActiveRecord::PredicateBuilder.resolve_column_aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:8
                                                                                                                                • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:11
                                                                                                                                • Hash#keys $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:12
                                                                                                                                • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:12
                                                                                                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:12
                                                                                                                                    • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:12
                                                                                                                                    • ActiveRecord::PredicateBuilder.block in resolve_column_aliases $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:12
                                                                                                                                      • ActsAsTaggableOn::Tagging.attribute_alias? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:218
                                                                                                                                        • ActsAsTaggableOn::Tagging.attribute_aliases -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                          • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                        • Symbol#to_s $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                                        • Hash#key? $GemPath0/gems/activemodel-4.2.11.1/lib/active_model/attribute_methods.rb:219
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#create_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:966
                                                                                                                                • Enumerable#partition $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:967
                                                                                                                                  • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:967
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in create_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:967
                                                                                                                                      • ActiveRecord::PredicateBuilder.can_be_bound? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:149
                                                                                                                                        • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:150
                                                                                                                                        • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:151
                                                                                                                                        • ActiveRecord::PredicateBuilder.handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:131
                                                                                                                                          • Enumerable#detect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                            • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                • ActiveRecord::Base.=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:228
                                                                                                                                                  • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:229
                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                          • Array#last $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                      • ActsAsTaggableOn::Tagging.columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attributes.rb:97
                                                                                                                                      • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:969
                                                                                                                                      • Hash#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:969
                                                                                                                                      • ActsAsTaggableOn::Tagging.reflect_on_aggregation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:61
                                                                                                                                        • ActsAsTaggableOn::Tagging.aggregate_reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                          • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                        • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:62
                                                                                                                                • Enumerable#partition $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:973
                                                                                                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:973
                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:48
                                                                                                                                  • ActsAsTaggableOn::Tagging.connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:86
                                                                                                                                    • ActsAsTaggableOn::Tagging.retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:112
                                                                                                                                      • ActsAsTaggableOn::Tagging.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:100
                                                                                                                                        • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                                          • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                            • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                            • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                        • ActsAsTaggableOn::Tagging.default_connection_handler -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                          • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                      • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:568
                                                                                                                                        • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:605
                                                                                                                                          • ActiveRecord::ConnectionAdapters::ConnectionHandler#class_to_pool $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:622
                                                                                                                                            • #<Class:Process>#pid $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:623
                                                                                                                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                          • Module#name $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:606
                                                                                                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                        • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:259
                                                                                                                                          • ActiveRecord::ConnectionAdapters::ConnectionPool#current_connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:441
                                                                                                                                            • ActiveRecord::Base.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_handling.rb:90
                                                                                                                                              • ActiveRecord::RuntimeRegistry.connection_id $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/runtime_registry.rb:18
                                                                                                                                                • ActiveRecord::RuntimeRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                                                                                                                  • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                                  • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                                                                                                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                                                                                            • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:982
                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in create_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:982
                                                                                                                                    • ActsAsTaggableOn::Tagging.columns_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/attributes.rb:97
                                                                                                                                    • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:983
                                                                                                                                    • Array#push $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:983
                                                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#substitute_at $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:280
                                                                                                                                      • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:281
                                                                                                                                        • BasicObject#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/connection_adapters/abstract_adapter.rb:281
                                                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:987
                                                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:994
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                                • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                              • ActsAsTaggableOn::Tagging.expand_hash_conditions_for_aggregates $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/sanitization.rb:56
                                                                                                                                • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/sanitization.rb:58
                                                                                                                                  • ActsAsTaggableOn::Tagging.block in expand_hash_conditions_for_aggregates $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/sanitization.rb:58
                                                                                                                                    • Symbol#to_sym $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/sanitization.rb:59
                                                                                                                                    • ActsAsTaggableOn::Tagging.reflect_on_aggregation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:61
                                                                                                                                      • ActsAsTaggableOn::Tagging.aggregate_reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                        • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                      • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:62
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#add_relations_to_bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1166
                                                                                                                                • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1167
                                                                                                                                • Hash#each_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1168
                                                                                                                                  • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#block in add_relations_to_bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1168
                                                                                                                                    • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1169
                                                                                                                                    • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#add_relations_to_bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1166
                                                                                                                                      • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1167
                                                                                                                              • ActiveRecord::PredicateBuilder.build_from_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:20
                                                                                                                                • Hash#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:23
                                                                                                                                  • ActiveRecord::PredicateBuilder.block in build_from_hash $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:23
                                                                                                                                    • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:26
                                                                                                                                    • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:38
                                                                                                                                    • String#include? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:40
                                                                                                                                    • ActiveRecord::PredicateBuilder.expand $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:52
                                                                                                                                      • ActsAsTaggableOn::Tagging._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                                                        • ActsAsTaggableOn::Tagging._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                          • ActsAsTaggableOn::Tagging.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                                                        • String#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                                                                      • Arel::Table#[] $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:99
                                                                                                                                        • #<Class:#<Class:0x000055592d6f2990>>#new $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                                                          • Struct#initialize $GemPath0/gems/arel-6.0.4/lib/arel/table.rb:100
                                                                                                                                      • ActiveRecord::PredicateBuilder.build $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:126
                                                                                                                                        • ActiveRecord::PredicateBuilder.handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:131
                                                                                                                                          • Enumerable#detect $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                            • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                • ActiveRecord::Base.=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:228
                                                                                                                                                  • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/core.rb:229
                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                              • ActiveRecord::PredicateBuilder.block in handler_for $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                                • Module#=== $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                          • Array#last $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:132
                                                                                                                                        • ActiveRecord::PredicateBuilder.block in <class:PredicateBuilder> $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:117
                                                                                                                                          • Arel::Attributes::Attribute#eq $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:15
                                                                                                                                            • Arel::Attributes::Attribute#quoted_node $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:207
                                                                                                                                              • Arel::Nodes.build_quoted $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:81
                                                                                                                                                • Module#=== $GemPath0/gems/arel-6.0.4/lib/arel/nodes.rb:83
                                                                                                                                            • Class#new $GemPath0/gems/arel-6.0.4/lib/arel/predications.rb:16
                                                                                                                                              • Arel::Nodes::Equality#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:6
                                                                                                                                                • BasicObject#initialize $GemPath0/gems/arel-6.0.4/lib/arel/nodes/binary.rb:7
                                                                                                                                    • Array#concat $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/predicate_builder.rb:45
                                                                                                                            • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                              • ActiveRecord::Reflection::ThroughReflection#scope $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#unscope_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#unscope! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:393
                                                                                                                • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:394
                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#unscope_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#unscope_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                  • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                                • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:397
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • ActsAsTaggableOn::Tagging::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                              • Array#| $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association_scope.rb:168
                                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Relation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                            • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:30
                                                                                              • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:31
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#spawn $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:9
                                                                                                • Kernel#clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                  • Kernel#initialize_clone $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:10
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:31
                                                                                                      • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:34
                                                                                                      • Hash#key? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                      • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                        • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                          • Array#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:35
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#reset $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:526
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#merge! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:40
                                                                                                • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:41
                                                                                                • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:43
                                                                                                • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:44
                                                                                                  • ActiveRecord::Relation::Merger#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:46
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:625
                                                                                                      • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:626
                                                                                                • ActiveRecord::Relation::Merger#merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:61
                                                                                                  • ActiveRecord::Relation::Merger#normal_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:57
                                                                                                  • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                      • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                      • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                    • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                      • Kernel#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                      • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                                  • ActiveRecord::Relation::Merger#merge_multi_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:132
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                    • ActiveRecord::Relation::Merger#partition_overwrites $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:177
                                                                                                    • ActiveRecord::Relation::Merger#filter_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:167
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#reordering_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#order! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:322
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#preprocess_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1119
                                                                                                        • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1120
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#validate_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1109
                                                                                                          • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1110
                                                                                                        • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                          • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                        • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                        • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                        • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1125
                                                                                                        • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1128
                                                                                                        • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1141
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#order_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#extending_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                    • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:155
                                                                                                  • ActiveRecord::Relation::Merger#merge_single_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:158
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#from_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#lock_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#create_with_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:105
                                                                                                    • Hash#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:162
                                                                                                  • ActiveRecord::Relation::Merger#merge_preloads $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:87
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#preload_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                  • ActiveRecord::Relation::Merger#merge_joins $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:108
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                    • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:109
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                    • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#joins! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:433
                                                                                                      • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:434
                                                                                                      • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:435
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                      • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#joins_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                          • Hash#fetch $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_association.rb:435
                                                                                        • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#merge! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:40
                                                                                          • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:41
                                                                                          • Kernel#is_a? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:43
                                                                                          • Class#new $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/spawn_methods.rb:44
                                                                                            • ActiveRecord::Relation::Merger#initialize $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:46
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:625
                                                                                                • #<Class:Hash>#[] $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation.rb:626
                                                                                          • ActiveRecord::Relation::Merger#merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:61
                                                                                            • ActiveRecord::Relation::Merger#normal_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:57
                                                                                            • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                              • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:62
                                                                                                • NilClass#nil? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:68
                                                                                            • ActiveRecord::Relation::Merger#merge_multi_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:132
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#where_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#bind_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                              • ActiveRecord::Relation::Merger#partition_overwrites $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:177
                                                                                              • ActiveRecord::Relation::Merger#filter_binds $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:167
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#where_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#bind_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#reordering_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#order! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:322
                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#preprocess_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1119
                                                                                                  • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1120
                                                                                                  • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#validate_order_args $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1109
                                                                                                    • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1110
                                                                                                  • Enumerable#grep $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                    • Array#each $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1123
                                                                                                  • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                  • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1124
                                                                                                  • Array#any? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1125
                                                                                                  • Array#map! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1128
                                                                                                  • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:1141
                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#order_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#order_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                  • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#extending_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                              • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:155
                                                                                            • ActiveRecord::Relation::Merger#merge_single_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:158
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#from_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#from_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#lock_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:79
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#lock_value= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:87
                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#create_with_value $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:105
                                                                                              • Hash#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:162
                                                                                            • ActiveRecord::Relation::Merger#merge_preloads $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:87
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#preload_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#includes_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                            • ActiveRecord::Relation::Merger#merge_joins $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:108
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                              • Array#empty? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/merger.rb:109
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_AssociationRelation#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#joins! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:433
                                                                                                • Array#compact! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:434
                                                                                                • Array#flatten! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:435
                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#joins_values $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:65
                                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#joins_values= $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:69
                                                                                                  • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#check_cached_relation $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/query_methods.rb:95
                                                                              • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:46
                                                                                • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#to_ary $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_proxy.rb:944
                                                                                  • ActsAsTaggableOn::Tag::ActiveRecord_Associations_CollectionProxy#load_target $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_proxy.rb:44
                                                                                    • ActiveRecord::Associations::HasManyThroughAssociation#load_target $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_association.rb:401
                                                                                      • ActiveRecord::Associations::HasManyThroughAssociation#find_target? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:175
                                                                                        • ActiveRecord::Associations::HasManyThroughAssociation#loaded? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:58
                                                                                      • ActiveRecord::Associations::HasManyThroughAssociation#loaded! $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/association.rb:63
                                                                                        • ActiveRecord::Associations::HasManyThroughAssociation#stale_state $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/through_association.rb:67
                                                                                          • ActiveRecord::Associations::HasManyThroughAssociation#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/through_association.rb:6
                                                                                            • ActiveRecord::Reflection::ThroughReflection#through_reflection $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:686
                                                                                              • ActiveRecord::Reflection::ThroughReflection#active_record $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                              • ActiveRecord::Reflection::ThroughReflection#options $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:889
                                                                                              • Book._reflect_on_association $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:115
                                                                                                • Book._reflections -> block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                  • Book.block (4 levels) in class_attribute $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/class/attribute.rb:86
                                                                                                • Symbol#to_s $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:116
                                                                                          • ActiveRecord::Reflection::HasManyReflection#belongs_to? $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/reflection.rb:442
                                                                                  • Kernel#dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_proxy.rb:945
                                                                                    • Kernel#initialize_dup $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_proxy.rb:945
                                                                                      • Array#initialize_copy $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/associations/collection_proxy.rb:945
                                                                                • Array#map $GemPath0/gems/activerecord-4.2.11.1/lib/active_record/relation/delegation.rb:46
                                                                        • Array#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                                          • Array#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:24
                                                                      • Hash#merge! $GemPath0/gems/chewy-5.1.0/lib/chewy/fields/root.rb:85
                                                                • Hash#as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:145
                                                                  • Enumerable#map $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                    • Hash#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                      • Hash#block in as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                        • Symbol#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                        • String#as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:80
                                                                      • Hash#block in as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                        • Symbol#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                        • Integer#as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:92
                                                                      • Hash#block in as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                        • Symbol#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                        • String#as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:80
                                                                      • Hash#block in as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                        • Symbol#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                        • Integer#as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:92
                                                                      • Hash#block in as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                        • Symbol#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                        • String#as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:80
                                                                      • Hash#block in as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                        • Symbol#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                        • Array#as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:139
                                                                          • Array#map $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:140
                                                                  • #<Class:Hash>#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                      • Kernel#method $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_builder.rb:28
                                                      • Method#to_proc $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_builder.rb:28
                                                      • Enumerable#flat_map $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_builder.rb:28
                                                        • Array#each $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_builder.rb:28
                                                      • Array#concat $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_builder.rb:27
                                                    • Chewy::Type::Import::Routine#flush_leftovers $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/routine.rb:111
                                                    • Array#unshift $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/routine.rb:88
                                                    • Chewy::Type::Import::Routine#perform_bulk $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/routine.rb:101
                                                      • Chewy::Type::Import::Routine#bulk $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/routine.rb:132
                                                        • Kernel#dup $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/routine.rb:133
                                                          • Kernel#initialize_dup $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/routine.rb:133
                                                            • Hash#initialize_copy $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/routine.rb:133
                                                        • Class#new $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/routine.rb:133
                                                          • Chewy::Type::Import::BulkRequest#initialize $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_request.rb:17
                                                      • Chewy::Type::Import::BulkRequest#perform $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_request.rb:32
                                                        • Array#empty? $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_request.rb:33
                                                        • Chewy::Type::Import::BulkRequest#request_bodies $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_request.rb:55
                                                        • Enumerable#each_with_object $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_request.rb:35
                                                          • Array#each $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_request.rb:35
                                                            • Chewy::Type::Import::BulkRequest#block in perform $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_request.rb:35
                                                              • Array#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                                • Array#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:24
                                                              • EntertainmentIndex::Book.client $GemPath0/gems/chewy-5.1.0/lib/chewy/type.rb:28
                                                                • EntertainmentIndex::Book.index -> block in create_type $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:138
                                                                  • EntertainmentIndex::Book.block in create_type $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:138
                                                                • EntertainmentIndex.client $GemPath0/gems/chewy-5.1.0/lib/chewy/index.rb:13
                                                                  • Chewy.client $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:147
                                                                    • #<Class:Thread>#current $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:148
                                                                    • Thread#[] $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:148
                                                              • Chewy::Type::Import::BulkRequest#request_base $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_request.rb:48
                                                                • EntertainmentIndex::Book.index_name $GemPath0/gems/chewy-5.1.0/lib/chewy/type.rb:28
                                                                  • EntertainmentIndex::Book.index -> block in create_type $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:138
                                                                    • EntertainmentIndex::Book.block in create_type $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:138
                                                                  • EntertainmentIndex.index_name $GemPath0/gems/chewy-5.1.0/lib/chewy/index.rb:53
                                                                    • EntertainmentIndex.prefix_with_deprecation $GemPath0/gems/chewy-5.1.0/lib/chewy/index.rb:261
                                                                      • Kernel#respond_to? $GemPath0/gems/chewy-5.1.0/lib/chewy/index.rb:262
                                                                        • EntertainmentIndex.respond_to_missing? $GemPath0/gems/chewy-5.1.0/lib/chewy/search.rb:78
                                                                          • EntertainmentIndex.search_class $GemPath0/gems/chewy-5.1.0/lib/chewy/search.rb:84
                                                                          • Set#include? /usr/local/lib/ruby/2.5.0/set.rb:253
                                                                          • Kernel#respond_to_missing? $GemPath0/gems/chewy-5.1.0/lib/chewy/search.rb:79
                                                                      • EntertainmentIndex.prefix $GemPath0/gems/chewy-5.1.0/lib/chewy/index.rb:110
                                                                        • Chewy.configuration $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:213
                                                                          • Chewy.config $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:210
                                                                            • Chewy::Config.instance /usr/local/lib/ruby/2.5.0/singleton.rb:137
                                                                          • Chewy::Config#configuration $GemPath0/gems/chewy-5.1.0/lib/chewy/config.rb:133
                                                                            • Chewy::Config#yaml_settings $GemPath0/gems/chewy-5.1.0/lib/chewy/config.rb:143
                                                                            • Hash#deep_symbolize_keys $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:126
                                                                              • Hash#deep_transform_keys $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:88
                                                                                • Hash#_deep_transform_keys_in_object $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:139
                                                                                  • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:141
                                                                                  • Enumerable#each_with_object $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:142
                                                                                    • Hash#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:142
                                                                                      • Hash#block in _deep_transform_keys_in_object $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:142
                                                                                        • Hash#block in deep_symbolize_keys $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:127
                                                                                          • Symbol#to_sym $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:127
                                                                                        • Hash#_deep_transform_keys_in_object $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:139
                                                                                          • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:141
                                                                                          • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:145
                                                                            • Hash#merge $GemPath0/gems/chewy-5.1.0/lib/chewy/config.rb:134
                                                                            • Kernel#tap $GemPath0/gems/chewy-5.1.0/lib/chewy/config.rb:134
                                                                              • Chewy::Config#block in configuration $GemPath0/gems/chewy-5.1.0/lib/chewy/config.rb:134
                                                                    • EntertainmentIndex.base_name $GemPath0/gems/chewy-5.1.0/lib/chewy/index.rb:77
                                                                      • Module#name $GemPath0/gems/chewy-5.1.0/lib/chewy/index.rb:78
                                                                      • String#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:116
                                                                        • Regexp#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:117
                                                                    • Array#reject $GemPath0/gems/chewy-5.1.0/lib/chewy/index.rb:61
                                                                      • NilClass#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:54
                                                                      • String#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:116
                                                                        • Regexp#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:117
                                                                      • NilClass#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:54
                                                                    • Array#join $GemPath0/gems/chewy-5.1.0/lib/chewy/index.rb:61
                                                                • EntertainmentIndex::Book.type_name $GemPath0/gems/chewy-5.1.0/lib/chewy/type.rb:49
                                                                  • EntertainmentIndex::Book.adapter -> block in create_type $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:139
                                                                    • EntertainmentIndex::Book.block in create_type $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:139
                                                                  • Chewy::Type::Adapter::ActiveRecord#type_name $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/base.rb:27
                                                                • Hash#merge! $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_request.rb:52
                                                              • Hash#merge $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_request.rb:36
                                                              • Elasticsearch::Transport::Client#bulk $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/actions/bulk.rb:71
                                                                • Kernel#clone $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/actions/bulk.rb:72
                                                                  • Kernel#initialize_clone $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/actions/bulk.rb:72
                                                                    • Hash#initialize_copy $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/actions/bulk.rb:72
                                                                • Hash#delete $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/actions/bulk.rb:74
                                                                • Elasticsearch::API::Utils.__escape $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:19
                                                                  • String#to_s $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:21
                                                                  • CGI::Escape#escape $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:21
                                                                • Elasticsearch::API::Utils.__escape $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:19
                                                                  • String#to_s $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:21
                                                                  • CGI::Escape#escape $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:21
                                                                • Elasticsearch::API::Utils.__pathify $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:63
                                                                  • Kernel#Array $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:64
                                                                  • Array#flatten $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:64
                                                                  • Array#compact $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:65
                                                                  • Array#reject $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:66
                                                                    • Elasticsearch::API::Utils.block in __pathify $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:66
                                                                      • String#to_s $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:66
                                                                      • String#strip $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:66
                                                                    • Elasticsearch::API::Utils.block in __pathify $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:66
                                                                      • String#to_s $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:66
                                                                      • String#strip $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:66
                                                                    • Elasticsearch::API::Utils.block in __pathify $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:66
                                                                      • String#to_s $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:66
                                                                      • String#strip $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:66
                                                                  • Array#join $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:67
                                                                  • String#squeeze $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:68
                                                                • Kernel#__method__ $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/actions/bulk.rb:79
                                                                • Elasticsearch::API::Actions::ParamsRegistry.get $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/actions/params_registry.rb:40
                                                                  • Hash#fetch $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/actions/params_registry.rb:41
                                                                • Elasticsearch::API::Utils.__validate_and_extract_params $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:147
                                                                  • Elasticsearch::API.settings $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api.rb:71
                                                                  • Elasticsearch::API::Utils.__validate_params $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:156
                                                                    • Hash#each $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:157
                                                                      • Elasticsearch::API::Utils.block in __validate_params $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:157
                                                                        • Array#include? $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:159
                                                                      • Elasticsearch::API::Utils.block in __validate_params $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:157
                                                                        • Array#include? $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:159
                                                                        • Array#include? $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:159
                                                                        • Array#include? $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:159
                                                                      • Elasticsearch::API::Utils.block in __validate_params $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:157
                                                                        • Array#include? $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:159
                                                                  • Hash#merge $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:152
                                                                  • Elasticsearch::API::Utils.__extract_params $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:163
                                                                    • Hash#select $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:164
                                                                      • Elasticsearch::API::Utils.block in __extract_params $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:164
                                                                        • Array#include? $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:164
                                                                        • Array#include? $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:164
                                                                      • Elasticsearch::API::Utils.block in __extract_params $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:164
                                                                        • Array#include? $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:164
                                                                        • Array#include? $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:164
                                                                      • Elasticsearch::API::Utils.block in __extract_params $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:164
                                                                        • Array#include? $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:164
                                                                        • Array#include? $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:164
                                                                    • Kernel#is_a? $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:165
                                                                    • Enumerable#map $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:166
                                                                      • Hash#each $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:166
                                                                        • Elasticsearch::API::Utils.block in __extract_params $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:166
                                                                          • Kernel#is_a? $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:166
                                                                    • #<Class:Hash>#[] $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:166
                                                                • Kernel#is_a? $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/actions/bulk.rb:82
                                                                • Elasticsearch::API::Utils.__bulkify $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:87
                                                                  • Array#any? $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:93
                                                                    • Elasticsearch::API::Utils.block in __bulkify $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:93
                                                                      • Kernel#is_a? $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:93
                                                                      • Hash#values $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:93
                                                                      • Array#first $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:93
                                                                      • Kernel#is_a? $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:93
                                                                      • Hash#keys $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:93
                                                                      • Array#first $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:93
                                                                      • Symbol#to_s $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:93
                                                                      • Array#include? $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:93
                                                                      • Hash#values $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:93
                                                                      • Array#first $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:93
                                                                  • Enumerable#inject $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:95
                                                                    • Array#each $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:95
                                                                      • Elasticsearch::API::Utils.block in __bulkify $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:95
                                                                        • Hash#to_a $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:96
                                                                        • Array#first $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:96
                                                                        • Kernel#clone $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:97
                                                                          • Kernel#initialize_clone $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:97
                                                                            • Hash#initialize_copy $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:97
                                                                        • Hash#delete $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:98
                                                                      • Elasticsearch::API::Utils.block in __bulkify $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:95
                                                                        • Hash#to_a $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:96
                                                                        • Array#first $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:96
                                                                        • Kernel#clone $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:97
                                                                          • Kernel#initialize_clone $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:97
                                                                            • Hash#initialize_copy $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:97
                                                                        • Hash#delete $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:98
                                                                  • Array#map $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:104
                                                                    • Elasticsearch::API::Utils.block in __bulkify $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:104
                                                                      • Elasticsearch::API.serializer $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api.rb:65
                                                                        • Elasticsearch::API.settings $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api.rb:71
                                                                      • MultiJson.dump $GemPath0/gems/multi_json-1.14.1/lib/multi_json.rb:138
                                                                        • MultiJson.current_adapter $GemPath0/gems/multi_json-1.14.1/lib/multi_json.rb:129
                                                                          • MultiJson.adapter $GemPath0/gems/multi_json-1.14.1/lib/multi_json.rb:70
                                                                        • MultiJson::Adapters::JsonGem.dump $GemPath0/gems/multi_json-1.14.1/lib/multi_json/adapter.rb:24
                                                                          • MultiJson::Adapters::JsonGem.instance /usr/local/lib/ruby/2.5.0/singleton.rb:137
                                                                          • MultiJson::Adapters::JsonGem.cached_dump_options $GemPath0/gems/multi_json-1.14.1/lib/multi_json/adapter.rb:36
                                                                            • MultiJson::OptionsCache.fetch $GemPath0/gems/multi_json-1.14.1/lib/multi_json/options_cache.rb:10
                                                                              • Symbol#to_s $GemPath0/gems/multi_json-1.14.1/lib/multi_json/options_cache.rb:11
                                                                              • Kernel#instance_variable_get $GemPath0/gems/multi_json-1.14.1/lib/multi_json/options_cache.rb:11
                                                                              • Hash#key? $GemPath0/gems/multi_json-1.14.1/lib/multi_json/options_cache.rb:12
                                                                                • Hash#hash $GemPath0/gems/multi_json-1.14.1/lib/multi_json/options_cache.rb:12
                                                                                • Hash#eql? $GemPath0/gems/multi_json-1.14.1/lib/multi_json/options_cache.rb:12
                                                                              • Hash#hash $GemPath0/gems/multi_json-1.14.1/lib/multi_json/options_cache.rb:12
                                                                              • Hash#eql? $GemPath0/gems/multi_json-1.14.1/lib/multi_json/options_cache.rb:12
                                                                          • MultiJson::Adapters::JsonGem#dump $GemPath0/gems/multi_json-1.14.1/lib/multi_json/adapters/json_common.rb:17
                                                                            • Hash#delete $GemPath0/gems/multi_json-1.14.1/lib/multi_json/adapters/json_common.rb:18
                                                                            • Hash#to_json_with_active_support_encoder $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:31
                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:32
                                                                              • ActiveSupport::JSON.encode $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:21
                                                                                • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:22
                                                                                  • ActiveSupport::JSON::Encoding::JSONGemEncoder#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:29
                                                                                • ActiveSupport::JSON::Encoding::JSONGemEncoder#encode $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:34
                                                                                  • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:35
                                                                                    • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:35
                                                                                      • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:35
                                                                                  • Hash#as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:145
                                                                                    • Enumerable#map $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                      • Hash#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                        • Hash#block in as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • Symbol#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                            • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                              • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • Hash#as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:145
                                                                                            • Enumerable#map $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                              • Hash#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                                • Hash#block in as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                                  • Symbol#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                                  • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                                    • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                                      • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                                  • Integer#as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:92
                                                                                            • #<Class:Hash>#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                    • #<Class:Hash>#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                  • ActiveSupport::JSON::Encoding::JSONGemEncoder#jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:84
                                                                                    • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:86
                                                                                    • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:88
                                                                                    • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:88
                                                                                    • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:88
                                                                                    • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:88
                                                                                    • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:90
                                                                                    • Enumerable#map $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:91
                                                                                      • Hash#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:91
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder#block in jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:91
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder#jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:84
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:86
                                                                                            • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                              • String#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder#jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:84
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:86
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:88
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:88
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:88
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:88
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:90
                                                                                            • Enumerable#map $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:91
                                                                                              • Hash#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:91
                                                                                                • ActiveSupport::JSON::Encoding::JSONGemEncoder#block in jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:91
                                                                                                  • ActiveSupport::JSON::Encoding::JSONGemEncoder#jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:84
                                                                                                    • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:86
                                                                                                    • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                                      • String#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                                  • ActiveSupport::JSON::Encoding::JSONGemEncoder#jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:84
                                                                                                    • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:86
                                                                                                    • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:88
                                                                                            • #<Class:Hash>#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:91
                                                                                    • #<Class:Hash>#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:91
                                                                                  • ActiveSupport::JSON::Encoding::JSONGemEncoder#stringify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:100
                                                                                    • JSON.generate /usr/local/lib/ruby/2.5.0/json/common.rb:208
                                                                                      • Module#=== /usr/local/lib/ruby/2.5.0/json/common.rb:209
                                                                                      • Kernel#dup /usr/local/lib/ruby/2.5.0/json/common.rb:212
                                                                                        • Kernel#initialize_dup /usr/local/lib/ruby/2.5.0/json/common.rb:212
                                                                                          • JSON::Ext::Generator::State#initialize_copy /usr/local/lib/ruby/2.5.0/json/common.rb:212
                                                                                      • Kernel#respond_to? /usr/local/lib/ruby/2.5.0/json/common.rb:215
                                                                                      • Hash#to_hash /usr/local/lib/ruby/2.5.0/json/common.rb:216
                                                                                      • JSON::Ext::Generator::State#configure /usr/local/lib/ruby/2.5.0/json/common.rb:222
                                                                                        • Hash#key? /usr/local/lib/ruby/2.5.0/json/common.rb:222
                                                                                        • Hash#key? /usr/local/lib/ruby/2.5.0/json/common.rb:222
                                                                                        • Hash#key? /usr/local/lib/ruby/2.5.0/json/common.rb:222
                                                                                      • JSON::Ext::Generator::State#generate /usr/local/lib/ruby/2.5.0/json/common.rb:224
                                                                                        • Hash#keys /usr/local/lib/ruby/2.5.0/json/common.rb:224
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:63
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:55
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json_with_active_support_encoder $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:31
                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:32
                                                                                            • JSON::Ext::Generator::GeneratorMethods::String#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                              • String#encode $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                          • String#gsub $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:57
                                                                                        • Hash#keys /usr/local/lib/ruby/2.5.0/json/common.rb:224
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:63
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:55
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json_with_active_support_encoder $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:31
                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:32
                                                                                            • JSON::Ext::Generator::GeneratorMethods::String#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                              • String#encode $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                          • String#gsub $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:57
                                                                    • Elasticsearch::API::Utils.block in __bulkify $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:104
                                                                      • Elasticsearch::API.serializer $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api.rb:65
                                                                        • Elasticsearch::API.settings $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api.rb:71
                                                                      • MultiJson.dump $GemPath0/gems/multi_json-1.14.1/lib/multi_json.rb:138
                                                                        • MultiJson.current_adapter $GemPath0/gems/multi_json-1.14.1/lib/multi_json.rb:129
                                                                          • MultiJson.adapter $GemPath0/gems/multi_json-1.14.1/lib/multi_json.rb:70
                                                                        • MultiJson::Adapters::JsonGem.dump $GemPath0/gems/multi_json-1.14.1/lib/multi_json/adapter.rb:24
                                                                          • MultiJson::Adapters::JsonGem.instance /usr/local/lib/ruby/2.5.0/singleton.rb:137
                                                                          • MultiJson::Adapters::JsonGem.cached_dump_options $GemPath0/gems/multi_json-1.14.1/lib/multi_json/adapter.rb:36
                                                                            • MultiJson::OptionsCache.fetch $GemPath0/gems/multi_json-1.14.1/lib/multi_json/options_cache.rb:10
                                                                              • Symbol#to_s $GemPath0/gems/multi_json-1.14.1/lib/multi_json/options_cache.rb:11
                                                                              • Kernel#instance_variable_get $GemPath0/gems/multi_json-1.14.1/lib/multi_json/options_cache.rb:11
                                                                              • Hash#key? $GemPath0/gems/multi_json-1.14.1/lib/multi_json/options_cache.rb:12
                                                                                • Hash#hash $GemPath0/gems/multi_json-1.14.1/lib/multi_json/options_cache.rb:12
                                                                                • Hash#eql? $GemPath0/gems/multi_json-1.14.1/lib/multi_json/options_cache.rb:12
                                                                              • Hash#hash $GemPath0/gems/multi_json-1.14.1/lib/multi_json/options_cache.rb:12
                                                                              • Hash#eql? $GemPath0/gems/multi_json-1.14.1/lib/multi_json/options_cache.rb:12
                                                                          • MultiJson::Adapters::JsonGem#dump $GemPath0/gems/multi_json-1.14.1/lib/multi_json/adapters/json_common.rb:17
                                                                            • Hash#delete $GemPath0/gems/multi_json-1.14.1/lib/multi_json/adapters/json_common.rb:18
                                                                            • Hash#to_json_with_active_support_encoder $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:31
                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:32
                                                                              • ActiveSupport::JSON.encode $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:21
                                                                                • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:22
                                                                                  • ActiveSupport::JSON::Encoding::JSONGemEncoder#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:29
                                                                                • ActiveSupport::JSON::Encoding::JSONGemEncoder#encode $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:34
                                                                                  • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:35
                                                                                    • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:35
                                                                                      • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:35
                                                                                  • Hash#as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:145
                                                                                    • Enumerable#map $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                      • Hash#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                        • Hash#block in as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • String#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                            • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                              • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • String#as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:80
                                                                                        • Hash#block in as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • String#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                            • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                              • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • Integer#as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:92
                                                                                        • Hash#block in as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • String#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                            • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                              • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • String#as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:80
                                                                                        • Hash#block in as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • String#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                            • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                              • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • Integer#as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:92
                                                                                        • Hash#block in as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • String#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                            • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                              • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • String#as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:80
                                                                                        • Hash#block in as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • String#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                            • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                              • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • Array#as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:139
                                                                                            • Array#map $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:140
                                                                                              • Array#block in as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:140
                                                                                                • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:140
                                                                                                  • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:140
                                                                                                    • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:140
                                                                                                • String#as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:80
                                                                                              • Array#block in as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:140
                                                                                                • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:140
                                                                                                  • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:140
                                                                                                    • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:140
                                                                                                • String#as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:80
                                                                                    • #<Class:Hash>#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                  • ActiveSupport::JSON::Encoding::JSONGemEncoder#jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:84
                                                                                    • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:86
                                                                                    • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:88
                                                                                    • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:88
                                                                                    • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:88
                                                                                    • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:88
                                                                                    • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:90
                                                                                    • Enumerable#map $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:91
                                                                                      • Hash#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:91
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder#block in jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:91
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder#jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:84
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:86
                                                                                            • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                              • String#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder#jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:84
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:86
                                                                                            • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                              • String#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder#block in jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:91
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder#jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:84
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:86
                                                                                            • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                              • String#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder#jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:84
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:86
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:88
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder#block in jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:91
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder#jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:84
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:86
                                                                                            • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                              • String#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder#jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:84
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:86
                                                                                            • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                              • String#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder#block in jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:91
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder#jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:84
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:86
                                                                                            • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                              • String#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder#jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:84
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:86
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:88
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder#block in jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:91
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder#jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:84
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:86
                                                                                            • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                              • String#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder#jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:84
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:86
                                                                                            • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                              • String#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder#block in jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:91
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder#jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:84
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:86
                                                                                            • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                              • String#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder#jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:84
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:86
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:88
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:88
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:88
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:88
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:90
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:92
                                                                                            • Array#map $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:93
                                                                                              • ActiveSupport::JSON::Encoding::JSONGemEncoder#block in jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:93
                                                                                                • ActiveSupport::JSON::Encoding::JSONGemEncoder#jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:84
                                                                                                  • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:86
                                                                                                  • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                                    • String#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                              • ActiveSupport::JSON::Encoding::JSONGemEncoder#block in jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:93
                                                                                                • ActiveSupport::JSON::Encoding::JSONGemEncoder#jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:84
                                                                                                  • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:86
                                                                                                  • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                                    • String#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                    • #<Class:Hash>#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:91
                                                                                  • ActiveSupport::JSON::Encoding::JSONGemEncoder#stringify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:100
                                                                                    • JSON.generate /usr/local/lib/ruby/2.5.0/json/common.rb:208
                                                                                      • Module#=== /usr/local/lib/ruby/2.5.0/json/common.rb:209
                                                                                      • Kernel#dup /usr/local/lib/ruby/2.5.0/json/common.rb:212
                                                                                        • Kernel#initialize_dup /usr/local/lib/ruby/2.5.0/json/common.rb:212
                                                                                          • JSON::Ext::Generator::State#initialize_copy /usr/local/lib/ruby/2.5.0/json/common.rb:212
                                                                                      • Kernel#respond_to? /usr/local/lib/ruby/2.5.0/json/common.rb:215
                                                                                      • Hash#to_hash /usr/local/lib/ruby/2.5.0/json/common.rb:216
                                                                                      • JSON::Ext::Generator::State#configure /usr/local/lib/ruby/2.5.0/json/common.rb:222
                                                                                        • Hash#key? /usr/local/lib/ruby/2.5.0/json/common.rb:222
                                                                                        • Hash#key? /usr/local/lib/ruby/2.5.0/json/common.rb:222
                                                                                        • Hash#key? /usr/local/lib/ruby/2.5.0/json/common.rb:222
                                                                                      • JSON::Ext::Generator::State#generate /usr/local/lib/ruby/2.5.0/json/common.rb:224
                                                                                        • Hash#keys /usr/local/lib/ruby/2.5.0/json/common.rb:224
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:63
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:55
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json_with_active_support_encoder $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:31
                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:32
                                                                                            • JSON::Ext::Generator::GeneratorMethods::String#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                              • String#encode $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                          • String#gsub $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:57
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:55
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json_with_active_support_encoder $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:31
                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:32
                                                                                            • JSON::Ext::Generator::GeneratorMethods::String#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                              • String#encode $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                          • String#gsub $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:57
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:63
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:55
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json_with_active_support_encoder $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:31
                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:32
                                                                                            • JSON::Ext::Generator::GeneratorMethods::String#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                              • String#encode $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                          • String#gsub $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:57
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:63
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:55
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json_with_active_support_encoder $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:31
                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:32
                                                                                            • JSON::Ext::Generator::GeneratorMethods::String#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                              • String#encode $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                          • String#gsub $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:57
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:55
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json_with_active_support_encoder $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:31
                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:32
                                                                                            • JSON::Ext::Generator::GeneratorMethods::String#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                              • String#encode $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                          • String#gsub $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:57
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:63
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:55
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json_with_active_support_encoder $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:31
                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:32
                                                                                            • JSON::Ext::Generator::GeneratorMethods::String#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                              • String#encode $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                          • String#gsub $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:57
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:63
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:55
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json_with_active_support_encoder $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:31
                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:32
                                                                                            • JSON::Ext::Generator::GeneratorMethods::String#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                              • String#encode $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                          • String#gsub $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:57
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:55
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json_with_active_support_encoder $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:31
                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:32
                                                                                            • JSON::Ext::Generator::GeneratorMethods::String#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                              • String#encode $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                          • String#gsub $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:57
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:63
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:55
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json_with_active_support_encoder $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:31
                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:32
                                                                                            • JSON::Ext::Generator::GeneratorMethods::String#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                              • String#encode $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                          • String#gsub $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:57
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:55
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json_with_active_support_encoder $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:31
                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:32
                                                                                            • JSON::Ext::Generator::GeneratorMethods::String#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                              • String#encode $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                          • String#gsub $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:57
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:55
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json_with_active_support_encoder $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:31
                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:32
                                                                                            • JSON::Ext::Generator::GeneratorMethods::String#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                              • String#encode $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                          • String#gsub $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:57
                                                                    • Elasticsearch::API::Utils.block in __bulkify $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:104
                                                                      • Elasticsearch::API.serializer $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api.rb:65
                                                                        • Elasticsearch::API.settings $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api.rb:71
                                                                      • MultiJson.dump $GemPath0/gems/multi_json-1.14.1/lib/multi_json.rb:138
                                                                        • MultiJson.current_adapter $GemPath0/gems/multi_json-1.14.1/lib/multi_json.rb:129
                                                                          • MultiJson.adapter $GemPath0/gems/multi_json-1.14.1/lib/multi_json.rb:70
                                                                        • MultiJson::Adapters::JsonGem.dump $GemPath0/gems/multi_json-1.14.1/lib/multi_json/adapter.rb:24
                                                                          • MultiJson::Adapters::JsonGem.instance /usr/local/lib/ruby/2.5.0/singleton.rb:137
                                                                          • MultiJson::Adapters::JsonGem.cached_dump_options $GemPath0/gems/multi_json-1.14.1/lib/multi_json/adapter.rb:36
                                                                            • MultiJson::OptionsCache.fetch $GemPath0/gems/multi_json-1.14.1/lib/multi_json/options_cache.rb:10
                                                                              • Symbol#to_s $GemPath0/gems/multi_json-1.14.1/lib/multi_json/options_cache.rb:11
                                                                              • Kernel#instance_variable_get $GemPath0/gems/multi_json-1.14.1/lib/multi_json/options_cache.rb:11
                                                                              • Hash#key? $GemPath0/gems/multi_json-1.14.1/lib/multi_json/options_cache.rb:12
                                                                                • Hash#hash $GemPath0/gems/multi_json-1.14.1/lib/multi_json/options_cache.rb:12
                                                                                • Hash#eql? $GemPath0/gems/multi_json-1.14.1/lib/multi_json/options_cache.rb:12
                                                                              • Hash#hash $GemPath0/gems/multi_json-1.14.1/lib/multi_json/options_cache.rb:12
                                                                              • Hash#eql? $GemPath0/gems/multi_json-1.14.1/lib/multi_json/options_cache.rb:12
                                                                          • MultiJson::Adapters::JsonGem#dump $GemPath0/gems/multi_json-1.14.1/lib/multi_json/adapters/json_common.rb:17
                                                                            • Hash#delete $GemPath0/gems/multi_json-1.14.1/lib/multi_json/adapters/json_common.rb:18
                                                                            • Hash#to_json_with_active_support_encoder $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:31
                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:32
                                                                              • ActiveSupport::JSON.encode $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:21
                                                                                • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:22
                                                                                  • ActiveSupport::JSON::Encoding::JSONGemEncoder#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:29
                                                                                • ActiveSupport::JSON::Encoding::JSONGemEncoder#encode $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:34
                                                                                  • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:35
                                                                                    • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:35
                                                                                      • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:35
                                                                                  • Hash#as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:145
                                                                                    • Enumerable#map $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                      • Hash#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                        • Hash#block in as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • Symbol#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                            • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                              • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • Hash#as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:145
                                                                                            • Enumerable#map $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                              • Hash#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                                • Hash#block in as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                                  • Symbol#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                                  • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                                    • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                                      • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                                  • Integer#as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:92
                                                                                            • #<Class:Hash>#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                    • #<Class:Hash>#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                  • ActiveSupport::JSON::Encoding::JSONGemEncoder#jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:84
                                                                                    • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:86
                                                                                    • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:88
                                                                                    • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:88
                                                                                    • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:88
                                                                                    • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:88
                                                                                    • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:90
                                                                                    • Enumerable#map $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:91
                                                                                      • Hash#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:91
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder#block in jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:91
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder#jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:84
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:86
                                                                                            • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                              • String#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder#jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:84
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:86
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:88
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:88
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:88
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:88
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:90
                                                                                            • Enumerable#map $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:91
                                                                                              • Hash#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:91
                                                                                                • ActiveSupport::JSON::Encoding::JSONGemEncoder#block in jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:91
                                                                                                  • ActiveSupport::JSON::Encoding::JSONGemEncoder#jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:84
                                                                                                    • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:86
                                                                                                    • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                                      • String#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                                  • ActiveSupport::JSON::Encoding::JSONGemEncoder#jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:84
                                                                                                    • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:86
                                                                                                    • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:88
                                                                                            • #<Class:Hash>#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:91
                                                                                    • #<Class:Hash>#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:91
                                                                                  • ActiveSupport::JSON::Encoding::JSONGemEncoder#stringify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:100
                                                                                    • JSON.generate /usr/local/lib/ruby/2.5.0/json/common.rb:208
                                                                                      • Module#=== /usr/local/lib/ruby/2.5.0/json/common.rb:209
                                                                                      • Kernel#dup /usr/local/lib/ruby/2.5.0/json/common.rb:212
                                                                                        • Kernel#initialize_dup /usr/local/lib/ruby/2.5.0/json/common.rb:212
                                                                                          • JSON::Ext::Generator::State#initialize_copy /usr/local/lib/ruby/2.5.0/json/common.rb:212
                                                                                      • Kernel#respond_to? /usr/local/lib/ruby/2.5.0/json/common.rb:215
                                                                                      • Hash#to_hash /usr/local/lib/ruby/2.5.0/json/common.rb:216
                                                                                      • JSON::Ext::Generator::State#configure /usr/local/lib/ruby/2.5.0/json/common.rb:222
                                                                                        • Hash#key? /usr/local/lib/ruby/2.5.0/json/common.rb:222
                                                                                        • Hash#key? /usr/local/lib/ruby/2.5.0/json/common.rb:222
                                                                                        • Hash#key? /usr/local/lib/ruby/2.5.0/json/common.rb:222
                                                                                      • JSON::Ext::Generator::State#generate /usr/local/lib/ruby/2.5.0/json/common.rb:224
                                                                                        • Hash#keys /usr/local/lib/ruby/2.5.0/json/common.rb:224
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:63
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:55
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json_with_active_support_encoder $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:31
                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:32
                                                                                            • JSON::Ext::Generator::GeneratorMethods::String#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                              • String#encode $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                          • String#gsub $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:57
                                                                                        • Hash#keys /usr/local/lib/ruby/2.5.0/json/common.rb:224
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:63
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:55
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json_with_active_support_encoder $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:31
                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:32
                                                                                            • JSON::Ext::Generator::GeneratorMethods::String#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                              • String#encode $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                          • String#gsub $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:57
                                                                    • Elasticsearch::API::Utils.block in __bulkify $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:104
                                                                      • Elasticsearch::API.serializer $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api.rb:65
                                                                        • Elasticsearch::API.settings $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api.rb:71
                                                                      • MultiJson.dump $GemPath0/gems/multi_json-1.14.1/lib/multi_json.rb:138
                                                                        • MultiJson.current_adapter $GemPath0/gems/multi_json-1.14.1/lib/multi_json.rb:129
                                                                          • MultiJson.adapter $GemPath0/gems/multi_json-1.14.1/lib/multi_json.rb:70
                                                                        • MultiJson::Adapters::JsonGem.dump $GemPath0/gems/multi_json-1.14.1/lib/multi_json/adapter.rb:24
                                                                          • MultiJson::Adapters::JsonGem.instance /usr/local/lib/ruby/2.5.0/singleton.rb:137
                                                                          • MultiJson::Adapters::JsonGem.cached_dump_options $GemPath0/gems/multi_json-1.14.1/lib/multi_json/adapter.rb:36
                                                                            • MultiJson::OptionsCache.fetch $GemPath0/gems/multi_json-1.14.1/lib/multi_json/options_cache.rb:10
                                                                              • Symbol#to_s $GemPath0/gems/multi_json-1.14.1/lib/multi_json/options_cache.rb:11
                                                                              • Kernel#instance_variable_get $GemPath0/gems/multi_json-1.14.1/lib/multi_json/options_cache.rb:11
                                                                              • Hash#key? $GemPath0/gems/multi_json-1.14.1/lib/multi_json/options_cache.rb:12
                                                                                • Hash#hash $GemPath0/gems/multi_json-1.14.1/lib/multi_json/options_cache.rb:12
                                                                                • Hash#eql? $GemPath0/gems/multi_json-1.14.1/lib/multi_json/options_cache.rb:12
                                                                              • Hash#hash $GemPath0/gems/multi_json-1.14.1/lib/multi_json/options_cache.rb:12
                                                                              • Hash#eql? $GemPath0/gems/multi_json-1.14.1/lib/multi_json/options_cache.rb:12
                                                                          • MultiJson::Adapters::JsonGem#dump $GemPath0/gems/multi_json-1.14.1/lib/multi_json/adapters/json_common.rb:17
                                                                            • Hash#delete $GemPath0/gems/multi_json-1.14.1/lib/multi_json/adapters/json_common.rb:18
                                                                            • Hash#to_json_with_active_support_encoder $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:31
                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:32
                                                                              • ActiveSupport::JSON.encode $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:21
                                                                                • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:22
                                                                                  • ActiveSupport::JSON::Encoding::JSONGemEncoder#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:29
                                                                                • ActiveSupport::JSON::Encoding::JSONGemEncoder#encode $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:34
                                                                                  • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:35
                                                                                    • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:35
                                                                                      • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:35
                                                                                  • Hash#as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:145
                                                                                    • Enumerable#map $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                      • Hash#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                        • Hash#block in as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • String#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                            • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                              • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • String#as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:80
                                                                                        • Hash#block in as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • String#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                            • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                              • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • Integer#as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:92
                                                                                        • Hash#block in as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • String#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                            • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                              • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • String#as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:80
                                                                                        • Hash#block in as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • String#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                            • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                              • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • Integer#as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:92
                                                                                        • Hash#block in as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • String#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                            • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                              • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • String#as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:80
                                                                                        • Hash#block in as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • String#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • Kernel#dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                            • Kernel#initialize_dup $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                              • Hash#initialize_copy $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                          • Array#as_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:139
                                                                                            • Array#map $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:140
                                                                                    • #<Class:Hash>#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:159
                                                                                  • ActiveSupport::JSON::Encoding::JSONGemEncoder#jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:84
                                                                                    • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:86
                                                                                    • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:88
                                                                                    • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:88
                                                                                    • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:88
                                                                                    • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:88
                                                                                    • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:90
                                                                                    • Enumerable#map $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:91
                                                                                      • Hash#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:91
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder#block in jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:91
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder#jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:84
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:86
                                                                                            • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                              • String#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder#jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:84
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:86
                                                                                            • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                              • String#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder#block in jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:91
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder#jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:84
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:86
                                                                                            • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                              • String#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder#jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:84
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:86
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:88
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder#block in jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:91
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder#jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:84
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:86
                                                                                            • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                              • String#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder#jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:84
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:86
                                                                                            • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                              • String#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder#block in jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:91
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder#jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:84
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:86
                                                                                            • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                              • String#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder#jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:84
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:86
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:88
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder#block in jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:91
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder#jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:84
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:86
                                                                                            • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                              • String#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder#jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:84
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:86
                                                                                            • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                              • String#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder#block in jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:91
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder#jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:84
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:86
                                                                                            • Class#new $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                              • String#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:87
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder#jsonify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:84
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:86
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:88
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:88
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:88
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:88
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:90
                                                                                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:92
                                                                                            • Array#map $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:93
                                                                                    • #<Class:Hash>#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:91
                                                                                  • ActiveSupport::JSON::Encoding::JSONGemEncoder#stringify $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:100
                                                                                    • JSON.generate /usr/local/lib/ruby/2.5.0/json/common.rb:208
                                                                                      • Module#=== /usr/local/lib/ruby/2.5.0/json/common.rb:209
                                                                                      • Kernel#dup /usr/local/lib/ruby/2.5.0/json/common.rb:212
                                                                                        • Kernel#initialize_dup /usr/local/lib/ruby/2.5.0/json/common.rb:212
                                                                                          • JSON::Ext::Generator::State#initialize_copy /usr/local/lib/ruby/2.5.0/json/common.rb:212
                                                                                      • Kernel#respond_to? /usr/local/lib/ruby/2.5.0/json/common.rb:215
                                                                                      • Hash#to_hash /usr/local/lib/ruby/2.5.0/json/common.rb:216
                                                                                      • JSON::Ext::Generator::State#configure /usr/local/lib/ruby/2.5.0/json/common.rb:222
                                                                                        • Hash#key? /usr/local/lib/ruby/2.5.0/json/common.rb:222
                                                                                        • Hash#key? /usr/local/lib/ruby/2.5.0/json/common.rb:222
                                                                                        • Hash#key? /usr/local/lib/ruby/2.5.0/json/common.rb:222
                                                                                      • JSON::Ext::Generator::State#generate /usr/local/lib/ruby/2.5.0/json/common.rb:224
                                                                                        • Hash#keys /usr/local/lib/ruby/2.5.0/json/common.rb:224
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:63
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:55
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json_with_active_support_encoder $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:31
                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:32
                                                                                            • JSON::Ext::Generator::GeneratorMethods::String#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                              • String#encode $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                          • String#gsub $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:57
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:55
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json_with_active_support_encoder $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:31
                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:32
                                                                                            • JSON::Ext::Generator::GeneratorMethods::String#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                              • String#encode $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                          • String#gsub $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:57
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:63
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:55
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json_with_active_support_encoder $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:31
                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:32
                                                                                            • JSON::Ext::Generator::GeneratorMethods::String#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                              • String#encode $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                          • String#gsub $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:57
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:63
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:55
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json_with_active_support_encoder $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:31
                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:32
                                                                                            • JSON::Ext::Generator::GeneratorMethods::String#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                              • String#encode $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                          • String#gsub $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:57
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:55
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json_with_active_support_encoder $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:31
                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:32
                                                                                            • JSON::Ext::Generator::GeneratorMethods::String#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                              • String#encode $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                          • String#gsub $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:57
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:63
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:55
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json_with_active_support_encoder $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:31
                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:32
                                                                                            • JSON::Ext::Generator::GeneratorMethods::String#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                              • String#encode $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                          • String#gsub $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:57
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:63
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:55
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json_with_active_support_encoder $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:31
                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:32
                                                                                            • JSON::Ext::Generator::GeneratorMethods::String#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                              • String#encode $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                          • String#gsub $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:57
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:55
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json_with_active_support_encoder $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:31
                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:32
                                                                                            • JSON::Ext::Generator::GeneratorMethods::String#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                              • String#encode $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                          • String#gsub $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:57
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:63
                                                                                        • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:55
                                                                                          • ActiveSupport::JSON::Encoding::JSONGemEncoder::EscapedString#to_json_with_active_support_encoder $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:31
                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:32
                                                                                            • JSON::Ext::Generator::GeneratorMethods::String#to_json $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                              • String#encode $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/json.rb:34
                                                                                          • String#gsub $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/json/encoding.rb:57
                                                                  • Array#join $GemPath0/gems/elasticsearch-api-7.4.0/lib/elasticsearch/api/utils.rb:117
                                                                • Elasticsearch::Transport::Client#perform_request $GemPath0/gems/elasticsearch-transport-7.4.0/lib/elasticsearch/transport/client.rb:150
                                                                  • - - -
                                                              • Hash#try $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/try.rb:62
                                                                • Array#first $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/try.rb:63
                                                                • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/try.rb:63
                                                                • Hash#try! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/try.rb:69
                                                                  • Kernel#public_send $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/try.rb:77
                                                                    • Hash#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/try.rb:77
                                                      • Kernel#block_given? $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/routine.rb:103
                                                      • Chewy::Type::Import::Routine#block in process $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/routine.rb:90
                                                        • Chewy::Type::Import::BulkBuilder#index_objects_by_id $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_builder.rb:36
                                                          • Chewy::Type::Import::BulkBuilder#index_object_ids $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_builder.rb:109
                                                          • Hash#invert $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_builder.rb:37
                                                          • Hash#stringify_keys! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:39
                                                            • Hash#transform_keys! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:19
                                                              • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:20
                                                              • Hash#keys $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:21
                                                              • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:21
                                                                • Hash#block in transform_keys! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:21
                                                                  • Hash#block in stringify_keys! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:40
                                                                    • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                      • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                        • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                  • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:22
                                                                • Hash#block in transform_keys! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:21
                                                                  • Hash#block in stringify_keys! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:40
                                                                    • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                      • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                                        • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                                  • Hash#delete $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:22
                                                        • Chewy::Type::Import::Routine#extract_leftovers $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/routine.rb:117
                                                          • Array#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                            • Array#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:24
                                                        • Array#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                          • Array#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:24
                                                        • NilClass#to_i $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/routine.rb:92
                                                        • Array#count $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/routine.rb:92
                                                        • Array#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                          • Array#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:24
                                                      • Chewy.wait_for_status $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:161
                                                        • Chewy.configuration $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:213
                                                          • Chewy.config $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:210
                                                            • Chewy::Config.instance /usr/local/lib/ruby/2.5.0/singleton.rb:137
                                                          • Chewy::Config#configuration $GemPath0/gems/chewy-5.1.0/lib/chewy/config.rb:133
                                                            • Chewy::Config#yaml_settings $GemPath0/gems/chewy-5.1.0/lib/chewy/config.rb:143
                                                            • Hash#deep_symbolize_keys $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:126
                                                              • Hash#deep_transform_keys $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:88
                                                                • Hash#_deep_transform_keys_in_object $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:139
                                                                  • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:141
                                                                  • Enumerable#each_with_object $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:142
                                                                    • Hash#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:142
                                                                      • Hash#block in _deep_transform_keys_in_object $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:142
                                                                        • Hash#block in deep_symbolize_keys $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:127
                                                                          • Symbol#to_sym $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:127
                                                                        • Hash#_deep_transform_keys_in_object $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:139
                                                                          • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:141
                                                                          • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:145
                                                            • Hash#merge $GemPath0/gems/chewy-5.1.0/lib/chewy/config.rb:134
                                                            • Kernel#tap $GemPath0/gems/chewy-5.1.0/lib/chewy/config.rb:134
                                                              • Chewy::Config#block in configuration $GemPath0/gems/chewy-5.1.0/lib/chewy/config.rb:134
                                                        • NilClass#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                          • NilClass#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:54
                                                      • Array#concat $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/routine.rb:105
                                                      • Array#empty? $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/routine.rb:106
                                      • Enumerable#all? $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:132
                                        • Array#each $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:132
                                      • Hash#keys $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:134
                                      • Enumerable#each_slice $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:134
                                      • Enumerable#map $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:134
                                        • Enumerator#each $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:134
                                          • Enumerable#each_slice $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:134
                                            • Array#length $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:134
                                            • Array#each $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:134
                                      • Enumerable#all? $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:136
                                        • Array#each $GemPath0/gems/chewy-5.1.0/lib/chewy/type/adapter/orm.rb:136
                                  • Chewy::Type::Import::Routine#perform_bulk $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/routine.rb:101
                                    • Chewy::Type::Import::Routine#bulk $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/routine.rb:132
                                    • Chewy::Type::Import::BulkRequest#perform $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_request.rb:32
                                      • Array#empty? $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/bulk_request.rb:33
                                    • Kernel#block_given? $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/routine.rb:103
                                    • Chewy.wait_for_status $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:161
                                      • Chewy.configuration $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:213
                                        • Chewy.config $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:210
                                          • Chewy::Config.instance /usr/local/lib/ruby/2.5.0/singleton.rb:137
                                        • Chewy::Config#configuration $GemPath0/gems/chewy-5.1.0/lib/chewy/config.rb:133
                                          • Chewy::Config#yaml_settings $GemPath0/gems/chewy-5.1.0/lib/chewy/config.rb:143
                                          • Hash#deep_symbolize_keys $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:126
                                            • Hash#deep_transform_keys $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:88
                                              • Hash#_deep_transform_keys_in_object $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:139
                                                • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:141
                                                • Enumerable#each_with_object $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:142
                                                  • Hash#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:142
                                                    • Hash#block in _deep_transform_keys_in_object $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:142
                                                      • Hash#block in deep_symbolize_keys $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:127
                                                        • Symbol#to_sym $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:127
                                                      • Hash#_deep_transform_keys_in_object $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:139
                                                        • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:141
                                                        • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/hash/keys.rb:145
                                          • Hash#merge $GemPath0/gems/chewy-5.1.0/lib/chewy/config.rb:134
                                          • Kernel#tap $GemPath0/gems/chewy-5.1.0/lib/chewy/config.rb:134
                                            • Chewy::Config#block in configuration $GemPath0/gems/chewy-5.1.0/lib/chewy/config.rb:134
                                      • NilClass#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                        • NilClass#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:54
                                    • Array#concat $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/routine.rb:105
                                    • Array#empty? $GemPath0/gems/chewy-5.1.0/lib/chewy/type/import/routine.rb:106
                                  • Array#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                    • Array#empty? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:24
                              • ActiveSupport::Notifications::Instrumenter#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:35
                                • ActiveSupport::Notifications::Fanout#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:45
                                  • ActiveSupport::Notifications::Fanout#listeners_for $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:53
                                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                  • Array#each $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:46
                                    • ActiveSupport::Notifications::Fanout#block in finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:46
                                      • ActiveSupport::Notifications::Fanout::Subscribers::Evented#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/fanout.rb:101
                                        • Chewy::LogSubscriber#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:82
                                          • Chewy::LogSubscriber#logger $GemPath0/gems/chewy-5.1.0/lib/chewy/log_subscriber.rb:3
                                            • Chewy.logger $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:213
                                              • Chewy.config $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:210
                                                • Chewy::Config.instance /usr/local/lib/ruby/2.5.0/singleton.rb:137
                                          • Chewy::LogSubscriber#finish $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:93
                                            • #<Class:Time>#now $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:94
                                              • Time#initialize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:94
                                            • Chewy::LogSubscriber#event_stack $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:105
                                              • ActiveSupport::SubscriberQueueRegistry.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:41
                                                • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                                • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/per_thread_registry.rb:42
                                              • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:121
                                            • Array#pop $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:95
                                            • Hash#merge! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:97
                                            • String#split $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:99
                                            • Array#first $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/subscriber.rb:99
                                            • Chewy::LogSubscriber#import_objects $GemPath0/gems/chewy-5.1.0/lib/chewy/log_subscriber.rb:7
                                              • Chewy::LogSubscriber#render_action $GemPath0/gems/chewy-5.1.0/lib/chewy/log_subscriber.rb:19
                                                • Chewy::LogSubscriber#block in import_objects $GemPath0/gems/chewy-5.1.0/lib/chewy/log_subscriber.rb:8
                                                • Hash#empty? $GemPath0/gems/chewy-5.1.0/lib/chewy/log_subscriber.rb:23
                                                • EntertainmentIndex::Book.presence $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:43
                                                  • EntertainmentIndex::Book.present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                                                    • EntertainmentIndex::Book.blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:16
                                                      • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:17
                                                        • EntertainmentIndex::Book.respond_to_missing? $GemPath0/gems/chewy-5.1.0/lib/chewy/type.rb:96
                                                          • EntertainmentIndex::Book.index -> block in create_type $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:138
                                                            • EntertainmentIndex::Book.block in create_type $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:138
                                                          • EntertainmentIndex.scopes $GemPath0/gems/chewy-5.1.0/lib/chewy/index.rb:213
                                                            • Kernel#public_methods $GemPath0/gems/chewy-5.1.0/lib/chewy/index.rb:214
                                                            • Kernel#public_methods $GemPath0/gems/chewy-5.1.0/lib/chewy/index.rb:214
                                                            • Array#- $GemPath0/gems/chewy-5.1.0/lib/chewy/index.rb:214
                                                          • Array#include? $GemPath0/gems/chewy-5.1.0/lib/chewy/type.rb:97
                                                          • EntertainmentIndex::Book.respond_to_missing? $GemPath0/gems/chewy-5.1.0/lib/chewy/search.rb:78
                                                            • EntertainmentIndex::Book.search_class $GemPath0/gems/chewy-5.1.0/lib/chewy/search.rb:84
                                                            • Set#include? /usr/local/lib/ruby/2.5.0/set.rb:253
                                                            • Kernel#respond_to_missing? $GemPath0/gems/chewy-5.1.0/lib/chewy/search.rb:79
                                                • Module#to_s $GemPath0/gems/chewy-5.1.0/lib/chewy/log_subscriber.rb:26
                                                • ActiveSupport::Notifications::Event#duration $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/notifications/instrumenter.rb:60
                                                  • Time#minus_with_coercion $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:249
                                                    • Kernel#respond_to? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:250
                                                    • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:251
                                                    • Time#minus_with_duration $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:236
                                                      • ActiveSupport::Duration.=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/duration.rb:93
                                                        • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/duration.rb:94
                                                      • Time#- $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:240
                                                        • Integer#fdiv $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/time/calculations.rb:240
                                                • Float#round $GemPath0/gems/chewy-5.1.0/lib/chewy/log_subscriber.rb:26
                                                • Float#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                  • Float#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
                                                    • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
                                                    • Float#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
                                                • Chewy::LogSubscriber#color $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:102
                                                  • Chewy::LogSubscriber#colorize_logging $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/module/attribute_accessors.rb:67
                                                  • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:104
                                                • Hash#inspect $GemPath0/gems/chewy-5.1.0/lib/chewy/log_subscriber.rb:29
                                                  • Symbol#inspect $GemPath0/gems/chewy-5.1.0/lib/chewy/log_subscriber.rb:29
                                                  • Integer#to_s $GemPath0/gems/chewy-5.1.0/lib/chewy/log_subscriber.rb:29
                                                • Chewy::LogSubscriber#debug $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/log_subscriber.rb:92
                                                  • Chewy::LogSubscriber#logger $GemPath0/gems/chewy-5.1.0/lib/chewy/log_subscriber.rb:3
                                                    • Chewy.logger $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:213
                                                      • Chewy.config $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:210
                                                        • Chewy::Config.instance /usr/local/lib/ruby/2.5.0/singleton.rb:137
                                                  • Chewy::LogSubscriber#logger $GemPath0/gems/chewy-5.1.0/lib/chewy/log_subscriber.rb:3
                                                    • Chewy.logger $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:213
                                                      • Chewy.config $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:210
                                                        • Chewy::Config.instance /usr/local/lib/ruby/2.5.0/singleton.rb:137
                                                  • ActiveSupport::Logger#debug /usr/local/lib/ruby/2.5.0/logger.rb:492
                                                    • ActiveSupport::Logger#add -> block (2 levels) in broadcast $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:25
                                                      • ActiveSupport::Logger#block (2 levels) in broadcast $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:25
                                                        • ActiveSupport::Logger#add $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:86
                                                          • Kernel#nil? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:87
                                                          • ActiveSupport::Logger#level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:28
                                                            • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:16
                                                              • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:12
                                                                • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                • BasicObject#__id__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                          • ActiveSupport::Logger#add /usr/local/lib/ruby/2.5.0/logger.rb:455
                                                            • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:457
                                                            • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:460
                                                            • NilClass#nil? /usr/local/lib/ruby/2.5.0/logger.rb:463
                                                            • Kernel#block_given? /usr/local/lib/ruby/2.5.0/logger.rb:464
                                                            • ActiveSupport::Logger#format_severity /usr/local/lib/ruby/2.5.0/logger.rb:579
                                                            • #<Class:Time>#now /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                              • Time#initialize /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                            • ActiveSupport::Logger#format_message /usr/local/lib/ruby/2.5.0/logger.rb:583
                                                              • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:102
                                                                • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:103
                                                            • Logger::LogDevice#write /usr/local/lib/ruby/2.5.0/logger.rb:686
                                                              • Logger::LogDevice#mon_synchronize /usr/local/lib/ruby/2.5.0/monitor.rb:223
                                                                • Logger::LogDevice#mon_enter /usr/local/lib/ruby/2.5.0/monitor.rb:183
                                                                  • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:184
                                                                  • Thread::Mutex#lock /usr/local/lib/ruby/2.5.0/monitor.rb:185
                                                                  • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:186
                                                                • Logger::LogDevice#block in write /usr/local/lib/ruby/2.5.0/logger.rb:688
                                                                  • IO#write /usr/local/lib/ruby/2.5.0/logger.rb:697
                                                                • Logger::LogDevice#mon_exit /usr/local/lib/ruby/2.5.0/monitor.rb:195
                                                                  • Logger::LogDevice#mon_check_owner /usr/local/lib/ruby/2.5.0/monitor.rb:259
                                                                    • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:260
                                                                  • Thread::Mutex#unlock /usr/local/lib/ruby/2.5.0/monitor.rb:200
                                                        • ActiveSupport::Logger#add $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:86
                                                          • Kernel#nil? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:87
                                                          • ActiveSupport::Logger#level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:28
                                                            • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:16
                                                              • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:12
                                                                • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                                • BasicObject#__id__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                                                              • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                                                                • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                                                          • ActiveSupport::Logger#add /usr/local/lib/ruby/2.5.0/logger.rb:455
                                                            • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:457
                                                            • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:460
                                                            • NilClass#nil? /usr/local/lib/ruby/2.5.0/logger.rb:463
                                                            • Kernel#block_given? /usr/local/lib/ruby/2.5.0/logger.rb:464
                                                            • ActiveSupport::Logger#format_severity /usr/local/lib/ruby/2.5.0/logger.rb:579
                                                            • #<Class:Time>#now /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                              • Time#initialize /usr/local/lib/ruby/2.5.0/logger.rb:472
                                                            • ActiveSupport::Logger#format_message /usr/local/lib/ruby/2.5.0/logger.rb:583
                                                              • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:20
                                                                • ActiveSupport::Logger::SimpleFormatter#tags_text $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:50
                                                                  • ActiveSupport::Logger::SimpleFormatter#current_tags $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:45
                                                                    • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:46
                                                                    • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:46
                                                                  • Array#any? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:52
                                                                • NilClass#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:21
                                                                • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:102
                                                                  • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:103
                                                            • Logger::LogDevice#write /usr/local/lib/ruby/2.5.0/logger.rb:686
                                                              • Logger::LogDevice#mon_synchronize /usr/local/lib/ruby/2.5.0/monitor.rb:223
                                                                • Logger::LogDevice#mon_enter /usr/local/lib/ruby/2.5.0/monitor.rb:183
                                                                  • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:184
                                                                  • Thread::Mutex#lock /usr/local/lib/ruby/2.5.0/monitor.rb:185
                                                                  • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:186
                                                                • Logger::LogDevice#block in write /usr/local/lib/ruby/2.5.0/logger.rb:688
                                                                  • IO#write /usr/local/lib/ruby/2.5.0/logger.rb:697
                                                                • Logger::LogDevice#mon_exit /usr/local/lib/ruby/2.5.0/monitor.rb:195
                                                                  • Logger::LogDevice#mon_check_owner /usr/local/lib/ruby/2.5.0/monitor.rb:259
                                                                    • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:260
                                                                  • Thread::Mutex#unlock /usr/local/lib/ruby/2.5.0/monitor.rb:200
                      • NilClass#present? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:23
                        • NilClass#blank? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/object/blank.rb:54
          • Integer#to_s -> block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
            • Integer#block (2 levels) in <class:Numeric> $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:132
              • Kernel#is_a? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:133
              • Integer#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/numeric/conversions.rb:139
          • Chewy::Strategy::Atomic#name $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy/base.rb:11
            • Kernel#class $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy/base.rb:12
            • Module#name $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy/base.rb:12
            • String#demodulize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/string/inflections.rb:137
              • ActiveSupport::Inflector.demodulize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:199
                • String#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:200
                • String#rindex $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:201
                • String#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:202
            • String#underscore $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/string/inflections.rb:118
              • ActiveSupport::Inflector.underscore $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:91
                • String#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:93
                • String#gsub $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:93
                • ActiveSupport::Inflector.inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:203
                  • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:204
                  • ActiveSupport::Inflector::Inflections.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:30
                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                • Regexp#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:94
                • String#gsub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:94
                • String#gsub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:95
                • String#gsub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:96
                • String#tr! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:97
                • String#downcase! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:98
            • String#to_sym $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy/base.rb:12
          • Symbol#to_s $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:64
          • Chewy::Strategy#current $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:51
            • Array#last $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:52
          • Chewy::Strategy::Urgent#name $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy/base.rb:11
            • Kernel#class $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy/base.rb:12
            • Module#name $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy/base.rb:12
            • String#demodulize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/string/inflections.rb:137
              • ActiveSupport::Inflector.demodulize $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:199
                • String#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:200
                • String#rindex $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:201
                • String#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:202
            • String#underscore $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/core_ext/string/inflections.rb:118
              • ActiveSupport::Inflector.underscore $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:91
                • String#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:93
                • String#gsub $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:93
                • ActiveSupport::Inflector.inflections $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:203
                  • Kernel#block_given? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:204
                  • ActiveSupport::Inflector::Inflections.instance $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/inflections.rb:30
                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                      • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                • Regexp#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:94
                • String#gsub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:94
                • String#gsub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:95
                • String#gsub! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:96
                • String#tr! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:97
                • String#downcase! $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/inflector/methods.rb:98
            • String#to_sym $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy/base.rb:12
          • Symbol#to_s $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:64
          • Chewy::Strategy#debug $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:77
            • Chewy.logger $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:213
              • Chewy.config $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:210
                • Chewy::Config.instance /usr/local/lib/ruby/2.5.0/singleton.rb:137
            • Chewy.logger $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:213
              • Chewy.config $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:210
                • Chewy::Config.instance /usr/local/lib/ruby/2.5.0/singleton.rb:137
            • ActiveSupport::Logger#debug? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:93
              • ActiveSupport::Logger#level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:28
                • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:16
                  • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:12
                    • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                    • BasicObject#__id__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                  • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                    • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
            • Kernel#caller $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:79
            • Enumerable#detect $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:79
              • Array#each $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:79
                • Chewy::Strategy#block in debug $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:79
                  • Kernel#!~ $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:79
                    • String#=~ $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:79
                • Chewy::Strategy#block in debug $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:79
                  • Kernel#!~ $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:79
                    • String#=~ $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:79
                • Chewy::Strategy#block in debug $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:79
                  • Kernel#!~ $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:79
                    • String#=~ $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:79
                • Chewy::Strategy#block in debug $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:79
                  • Kernel#!~ $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:79
                    • String#=~ $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:79
            • Chewy.logger $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:213
              • Chewy.config $GemPath0/gems/chewy-5.1.0/lib/chewy.rb:210
                • Chewy::Config.instance /usr/local/lib/ruby/2.5.0/singleton.rb:137
            • String#sub $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:80
            • Array#join $GemPath0/gems/chewy-5.1.0/lib/chewy/strategy.rb:80
            • ActiveSupport::Logger#debug /usr/local/lib/ruby/2.5.0/logger.rb:492
              • ActiveSupport::Logger#add -> block (2 levels) in broadcast $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:25
                • ActiveSupport::Logger#block (2 levels) in broadcast $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:25
                  • ActiveSupport::Logger#add $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:86
                    • Kernel#nil? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:87
                    • ActiveSupport::Logger#level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:28
                      • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:16
                        • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:12
                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                          • BasicObject#__id__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                    • ActiveSupport::Logger#add /usr/local/lib/ruby/2.5.0/logger.rb:455
                      • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:457
                      • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:460
                      • NilClass#nil? /usr/local/lib/ruby/2.5.0/logger.rb:463
                      • Kernel#block_given? /usr/local/lib/ruby/2.5.0/logger.rb:464
                      • ActiveSupport::Logger#format_severity /usr/local/lib/ruby/2.5.0/logger.rb:579
                      • #<Class:Time>#now /usr/local/lib/ruby/2.5.0/logger.rb:472
                        • Time#initialize /usr/local/lib/ruby/2.5.0/logger.rb:472
                      • ActiveSupport::Logger#format_message /usr/local/lib/ruby/2.5.0/logger.rb:583
                        • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:102
                          • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:103
                      • Logger::LogDevice#write /usr/local/lib/ruby/2.5.0/logger.rb:686
                        • Logger::LogDevice#mon_synchronize /usr/local/lib/ruby/2.5.0/monitor.rb:223
                          • Logger::LogDevice#mon_enter /usr/local/lib/ruby/2.5.0/monitor.rb:183
                            • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:184
                            • Thread::Mutex#lock /usr/local/lib/ruby/2.5.0/monitor.rb:185
                            • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:186
                          • Logger::LogDevice#block in write /usr/local/lib/ruby/2.5.0/logger.rb:688
                            • IO#write /usr/local/lib/ruby/2.5.0/logger.rb:697
                          • Logger::LogDevice#mon_exit /usr/local/lib/ruby/2.5.0/monitor.rb:195
                            • Logger::LogDevice#mon_check_owner /usr/local/lib/ruby/2.5.0/monitor.rb:259
                              • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:260
                            • Thread::Mutex#unlock /usr/local/lib/ruby/2.5.0/monitor.rb:200
                  • ActiveSupport::Logger#add $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:86
                    • Kernel#nil? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:87
                    • ActiveSupport::Logger#level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:28
                      • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:16
                        • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:12
                          • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                          • BasicObject#__id__ $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger_thread_safe_level.rb:13
                        • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/cache.rb:35
                          • ThreadSafe::Cache#[] $GemPath0/gems/thread_safe-0.3.6/lib/thread_safe/non_concurrent_cache_backend.rb:11
                    • ActiveSupport::Logger#add /usr/local/lib/ruby/2.5.0/logger.rb:455
                      • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:457
                      • Kernel#nil? /usr/local/lib/ruby/2.5.0/logger.rb:460
                      • NilClass#nil? /usr/local/lib/ruby/2.5.0/logger.rb:463
                      • Kernel#block_given? /usr/local/lib/ruby/2.5.0/logger.rb:464
                      • ActiveSupport::Logger#format_severity /usr/local/lib/ruby/2.5.0/logger.rb:579
                      • #<Class:Time>#now /usr/local/lib/ruby/2.5.0/logger.rb:472
                        • Time#initialize /usr/local/lib/ruby/2.5.0/logger.rb:472
                      • ActiveSupport::Logger#format_message /usr/local/lib/ruby/2.5.0/logger.rb:583
                        • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:20
                          • ActiveSupport::Logger::SimpleFormatter#tags_text $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:50
                            • ActiveSupport::Logger::SimpleFormatter#current_tags $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:45
                              • #<Class:Thread>#current $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:46
                              • Thread#[] $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:46
                            • Array#any? $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:52
                          • NilClass#to_s $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/tagged_logging.rb:21
                          • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:102
                            • Module#=== $GemPath0/gems/activesupport-4.2.11.1/lib/active_support/logger.rb:103
                      • Logger::LogDevice#write /usr/local/lib/ruby/2.5.0/logger.rb:686
                        • Logger::LogDevice#mon_synchronize /usr/local/lib/ruby/2.5.0/monitor.rb:223
                          • Logger::LogDevice#mon_enter /usr/local/lib/ruby/2.5.0/monitor.rb:183
                            • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:184
                            • Thread::Mutex#lock /usr/local/lib/ruby/2.5.0/monitor.rb:185
                            • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:186
                          • Logger::LogDevice#block in write /usr/local/lib/ruby/2.5.0/logger.rb:688
                            • IO#write /usr/local/lib/ruby/2.5.0/logger.rb:697
                          • Logger::LogDevice#mon_exit /usr/local/lib/ruby/2.5.0/monitor.rb:195
                            • Logger::LogDevice#mon_check_owner /usr/local/lib/ruby/2.5.0/monitor.rb:259
                              • #<Class:Thread>#current /usr/local/lib/ruby/2.5.0/monitor.rb:260
                            • Thread::Mutex#unlock /usr/local/lib/ruby/2.5.0/monitor.rb:200