• ArticlesController#block in index /home/z/test_rails/dapo/app/controllers/articles_controller.rb:3
  • ArticlesController.const_missing $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:201
    • ArticlesController.anonymous? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/anonymous.rb:25
      • Module#name $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/anonymous.rb:26
      • Kernel#nil? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/anonymous.rb:26
    • ActiveSupport::Dependencies.load_missing_constant $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:494
      • Module#name $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:495
      • ActiveSupport::Dependencies.qualified_const_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:396
        • Module#const_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:397
      • Module#name $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:495
      • ActiveSupport::Inflector.constantize $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:257
        • String#split $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:258
        • Enumerable#inject $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:266
          • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:266
            • ActiveSupport::Inflector.block in constantize $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:266
              • Module#const_get $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:268
      • BasicObject#equal? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:495
      • ActiveSupport::Dependencies.qualified_name_for $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:486
        • ActiveSupport::Dependencies.to_constant_name $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:676
          • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:678
          • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:679
          • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:680
          • Module#name $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:681
        • Symbol#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:488
      • String#underscore $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/string/inflections.rb:118
        • ActiveSupport::Inflector.underscore $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:89
          • String#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:91
          • String#gsub $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:91
          • ActiveSupport::Inflector.inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:234
            • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:235
            • ActiveSupport::Inflector::Inflections.instance $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:61
              • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:92
                • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:19
          • Regexp#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:92
          • String#gsub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:92
          • String#gsub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:93
          • String#gsub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:94
          • String#tr! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:95
          • String#downcase! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:96
      • ActiveSupport::Dependencies.search_for_file $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:424
        • String#sub $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:425
        • ActiveSupport::Dependencies.autoload_paths $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
        • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:427
          • ActiveSupport::Dependencies.block in search_for_file $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:427
            • #<Class:File>#join $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:428
            • #<Class:File>#file? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:429
          • ActiveSupport::Dependencies.block in search_for_file $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:427
            • #<Class:File>#join $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:428
            • #<Class:File>#file? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:429
          • ActiveSupport::Dependencies.block in search_for_file $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:427
            • #<Class:File>#join $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:428
            • #<Class:File>#file? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:429
          • ActiveSupport::Dependencies.block in search_for_file $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:427
            • #<Class:File>#join $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:428
            • #<Class:File>#file? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:429
          • ActiveSupport::Dependencies.block in search_for_file $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:427
            • #<Class:File>#join $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:428
            • #<Class:File>#file? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:429
          • ActiveSupport::Dependencies.block in search_for_file $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:427
            • #<Class:File>#join $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:428
            • #<Class:File>#file? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:429
          • ActiveSupport::Dependencies.block in search_for_file $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:427
            • #<Class:File>#join $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:428
            • #<Class:File>#file? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:429
          • ActiveSupport::Dependencies.block in search_for_file $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:427
            • #<Class:File>#join $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:428
            • #<Class:File>#file? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:429
          • ActiveSupport::Dependencies.block in search_for_file $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:427
            • #<Class:File>#join $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:428
            • #<Class:File>#file? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:429
          • ActiveSupport::Dependencies.block in search_for_file $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:427
            • #<Class:File>#join $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:428
            • #<Class:File>#file? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:429
      • ActiveSupport::Dependencies.autoload_module! $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:455
        • ActiveSupport::Dependencies.autoloadable_module? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:437
          • ActiveSupport::Dependencies.autoload_paths $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
          • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:438
            • ActiveSupport::Dependencies.block in autoloadable_module? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:438
              • #<Class:File>#join $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:439
              • #<Class:File>#directory? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:439
            • ActiveSupport::Dependencies.block in autoloadable_module? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:438
              • #<Class:File>#join $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:439
              • #<Class:File>#directory? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:439
            • ActiveSupport::Dependencies.block in autoloadable_module? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:438
              • #<Class:File>#join $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:439
              • #<Class:File>#directory? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:439
            • ActiveSupport::Dependencies.block in autoloadable_module? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:438
              • #<Class:File>#join $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:439
              • #<Class:File>#directory? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:439
            • ActiveSupport::Dependencies.block in autoloadable_module? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:438
              • #<Class:File>#join $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:439
              • #<Class:File>#directory? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:439
            • ActiveSupport::Dependencies.block in autoloadable_module? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:438
              • #<Class:File>#join $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:439
              • #<Class:File>#directory? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:439
            • ActiveSupport::Dependencies.block in autoloadable_module? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:438
              • #<Class:File>#join $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:439
              • #<Class:File>#directory? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:439
            • ActiveSupport::Dependencies.block in autoloadable_module? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:438
              • #<Class:File>#join $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:439
              • #<Class:File>#directory? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:439
            • ActiveSupport::Dependencies.block in autoloadable_module? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:438
              • #<Class:File>#join $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:439
              • #<Class:File>#directory? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:439
            • ActiveSupport::Dependencies.block in autoloadable_module? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:438
              • #<Class:File>#join $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:439
              • #<Class:File>#directory? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:439
      • ArticlesController.parent $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/introspection.rb:32
        • ArticlesController.parent_name $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/introspection.rb:7
      • ArticlesController.parents $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/introspection.rb:48
        • ArticlesController.parent_name $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/introspection.rb:7
        • Array#include? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/introspection.rb:57
      • Array#any? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:518
        • ActiveSupport::Dependencies.block in load_missing_constant $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:518
          • Module#const_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:518
      • Object.const_missing $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:201
        • Object.anonymous? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/anonymous.rb:25
          • Module#name $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/anonymous.rb:26
          • Kernel#nil? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/anonymous.rb:26
        • ActiveSupport::Dependencies.load_missing_constant $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:494
          • Module#name $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:495
          • ActiveSupport::Dependencies.qualified_const_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:396
            • Module#const_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:397
          • Module#name $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:495
          • ActiveSupport::Inflector.constantize $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:257
            • String#split $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:258
            • Enumerable#inject $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:266
              • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:266
                • ActiveSupport::Inflector.block in constantize $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:266
                  • Module#const_get $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:268
          • BasicObject#equal? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:495
          • ActiveSupport::Dependencies.qualified_name_for $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:486
            • ActiveSupport::Dependencies.to_constant_name $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:676
              • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:678
              • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:679
              • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:680
              • Module#name $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:681
            • Symbol#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:488
          • String#underscore $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/string/inflections.rb:118
            • ActiveSupport::Inflector.underscore $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:89
              • String#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:91
              • String#gsub $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:91
              • ActiveSupport::Inflector.inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:234
                • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:235
                • ActiveSupport::Inflector::Inflections.instance $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:61
                  • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:92
                    • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:19
              • Regexp#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:92
              • String#gsub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:92
              • String#gsub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:93
              • String#gsub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:94
              • String#tr! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:95
              • String#downcase! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:96
          • ActiveSupport::Dependencies.search_for_file $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:424
            • String#sub $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:425
            • ActiveSupport::Dependencies.autoload_paths $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
            • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:427
              • ActiveSupport::Dependencies.block in search_for_file $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:427
                • #<Class:File>#join $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:428
                • #<Class:File>#file? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:429
              • ActiveSupport::Dependencies.block in search_for_file $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:427
                • #<Class:File>#join $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:428
                • #<Class:File>#file? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:429
              • ActiveSupport::Dependencies.block in search_for_file $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:427
                • #<Class:File>#join $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:428
                • #<Class:File>#file? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:429
              • ActiveSupport::Dependencies.block in search_for_file $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:427
                • #<Class:File>#join $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:428
                • #<Class:File>#file? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:429
              • ActiveSupport::Dependencies.block in search_for_file $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:427
                • #<Class:File>#join $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:428
                • #<Class:File>#file? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:429
              • ActiveSupport::Dependencies.block in search_for_file $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:427
                • #<Class:File>#join $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:428
                • #<Class:File>#file? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:429
              • ActiveSupport::Dependencies.block in search_for_file $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:427
                • #<Class:File>#join $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:428
                • #<Class:File>#file? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:429
              • ActiveSupport::Dependencies.block in search_for_file $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:427
                • #<Class:File>#join $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:428
                • #<Class:File>#file? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:429
          • #<Class:File>#expand_path $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:505
          • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:506
          • ActiveSupport::Dependencies.loading $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
          • Array#include? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:508
          • ActiveSupport::Dependencies.require_or_load $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:353
            • #<Class:File>#expand_path $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:355
            • ActiveSupport::Dependencies.loaded $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
            • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
            • ActiveSupport::Dependencies.load_interlock $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:36
              • ActiveSupport::Dependencies.interlock $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
              • ActiveSupport::Dependencies::Interlock#loading $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies/interlock.rb:10
                • ActiveSupport::Concurrency::ShareLock#exclusive $GemPath0/gems/activesupport-5.0.2/lib/active_support/concurrency/share_lock.rb:147
                  • ActiveSupport::Concurrency::ShareLock#start_exclusive $GemPath0/gems/activesupport-5.0.2/lib/active_support/concurrency/share_lock.rb:75
                    • ActiveSupport::Concurrency::ShareLock#mon_synchronize /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:211
                      • ActiveSupport::Concurrency::ShareLock#mon_enter /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:185
                        • #<Class:Thread>#current /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:186
                        • Thread::Mutex#lock /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:187
                        • #<Class:Thread>#current /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:188
                      • ActiveSupport::Concurrency::ShareLock#block in start_exclusive $GemPath0/gems/activesupport-5.0.2/lib/active_support/concurrency/share_lock.rb:76
                        • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/concurrency/share_lock.rb:77
                        • ActiveSupport::Concurrency::ShareLock#busy_for_exclusive? $GemPath0/gems/activesupport-5.0.2/lib/active_support/concurrency/share_lock.rb:204
                          • ActiveSupport::Concurrency::ShareLock#busy_for_sharing? $GemPath0/gems/activesupport-5.0.2/lib/active_support/concurrency/share_lock.rb:209
                            • Hash#any? $GemPath0/gems/activesupport-5.0.2/lib/active_support/concurrency/share_lock.rb:211
                          • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/concurrency/share_lock.rb:206
                          • Kernel#hash $GemPath0/gems/activesupport-5.0.2/lib/active_support/concurrency/share_lock.rb:206
                        • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/concurrency/share_lock.rb:85
                      • ActiveSupport::Concurrency::ShareLock#mon_exit /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:197
                        • ActiveSupport::Concurrency::ShareLock#mon_check_owner /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:247
                          • #<Class:Thread>#current /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:248
                        • Thread::Mutex#unlock /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:202
                  • ActiveSupport::Dependencies::Interlock#block in loading $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies/interlock.rb:11
                    • ActiveSupport::Dependencies.block in load_interlock $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:37
                      • ActiveSupport::Dependencies.block in require_or_load $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:358
                        • ActiveSupport::Dependencies.loaded $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                        • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                        • ActiveSupport::Dependencies.loaded $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                        • Set#add /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:330
                        • ActiveSupport::Dependencies.loading $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                        • ActiveSupport::Dependencies.load? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:330
                          • ActiveSupport::Dependencies.mechanism $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                        • Kernel#nil? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:372
                        • ActiveSupport::Dependencies.warnings_on_first_load $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                        • ActiveSupport::Dependencies.load_file $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:471
                          • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:472
                          • Array#compact $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:472
                          • Array#collect $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:473
                            • ActiveSupport::Dependencies.block in load_file $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:473
                              • String#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:473
                          • ActiveSupport::Dependencies.new_constants_in $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:657
                            • ActiveSupport::Dependencies.constant_watch_stack $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                            • ActiveSupport::Dependencies::WatchStack#watch_namespaces $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:161
                              • Array#map $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:162
                                • ActiveSupport::Dependencies::WatchStack#block in watch_namespaces $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:162
                                  • ActiveSupport::Dependencies.to_constant_name $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:676
                                    • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:678
                                    • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:679
                                    • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:680
                                    • Module#name $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:681
                                  • ActiveSupport::Dependencies.qualified_const_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:396
                                    • Module#const_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:397
                                  • ActiveSupport::Inflector.constantize $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:257
                                    • String#split $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:258
                                    • Enumerable#inject $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:266
                                      • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:266
                                        • ActiveSupport::Inflector.block in constantize $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:266
                                          • Module#const_get $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:268
                                  • Module#constants $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:165
                            • ActiveSupport::Dependencies.block in load_file $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:476
                              • #<Class:Kernel>#load $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:477
                                • IO#set_encoding $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:477
                                • IO#set_encoding $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:477
                                • Object.const_missing $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:201
                                  • Object.anonymous? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/anonymous.rb:25
                                    • Module#name $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/anonymous.rb:26
                                    • Kernel#nil? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/anonymous.rb:26
                                  • ActiveSupport::Dependencies.load_missing_constant $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:494
                                    • Module#name $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:495
                                    • ActiveSupport::Dependencies.qualified_const_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:396
                                      • Module#const_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:397
                                    • Module#name $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:495
                                    • ActiveSupport::Inflector.constantize $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:257
                                      • String#split $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:258
                                      • Enumerable#inject $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:266
                                        • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:266
                                          • ActiveSupport::Inflector.block in constantize $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:266
                                            • Module#const_get $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:268
                                    • BasicObject#equal? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:495
                                    • ActiveSupport::Dependencies.qualified_name_for $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:486
                                      • ActiveSupport::Dependencies.to_constant_name $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:676
                                        • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:678
                                        • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:679
                                        • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:680
                                        • Module#name $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:681
                                      • Symbol#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:488
                                    • String#underscore $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/string/inflections.rb:118
                                      • ActiveSupport::Inflector.underscore $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:89
                                        • String#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:91
                                        • String#gsub $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:91
                                        • ActiveSupport::Inflector.inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:234
                                          • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:235
                                          • ActiveSupport::Inflector::Inflections.instance $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:61
                                            • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:92
                                              • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:19
                                        • Regexp#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:92
                                        • String#gsub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:92
                                        • String#gsub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:93
                                        • String#gsub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:94
                                        • String#tr! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:95
                                        • String#downcase! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:96
                                    • ActiveSupport::Dependencies.search_for_file $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:424
                                      • String#sub $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:425
                                      • ActiveSupport::Dependencies.autoload_paths $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                      • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:427
                                        • ActiveSupport::Dependencies.block in search_for_file $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:427
                                          • #<Class:File>#join $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:428
                                          • #<Class:File>#file? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:429
                                        • ActiveSupport::Dependencies.block in search_for_file $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:427
                                          • #<Class:File>#join $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:428
                                          • #<Class:File>#file? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:429
                                        • ActiveSupport::Dependencies.block in search_for_file $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:427
                                          • #<Class:File>#join $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:428
                                          • #<Class:File>#file? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:429
                                        • ActiveSupport::Dependencies.block in search_for_file $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:427
                                          • #<Class:File>#join $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:428
                                          • #<Class:File>#file? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:429
                                        • ActiveSupport::Dependencies.block in search_for_file $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:427
                                          • #<Class:File>#join $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:428
                                          • #<Class:File>#file? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:429
                                        • ActiveSupport::Dependencies.block in search_for_file $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:427
                                          • #<Class:File>#join $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:428
                                          • #<Class:File>#file? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:429
                                        • ActiveSupport::Dependencies.block in search_for_file $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:427
                                          • #<Class:File>#join $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:428
                                          • #<Class:File>#file? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:429
                                        • ActiveSupport::Dependencies.block in search_for_file $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:427
                                          • #<Class:File>#join $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:428
                                          • #<Class:File>#file? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:429
                                    • #<Class:File>#expand_path $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:505
                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:506
                                    • ActiveSupport::Dependencies.loading $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                    • Array#include? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:508
                                    • ActiveSupport::Dependencies.require_or_load $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:353
                                      • #<Class:File>#expand_path $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:355
                                      • ActiveSupport::Dependencies.loaded $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                      • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                      • ActiveSupport::Dependencies.load_interlock $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:36
                                        • ActiveSupport::Dependencies.interlock $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                        • ActiveSupport::Dependencies::Interlock#loading $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies/interlock.rb:10
                                          • ActiveSupport::Concurrency::ShareLock#exclusive $GemPath0/gems/activesupport-5.0.2/lib/active_support/concurrency/share_lock.rb:147
                                            • ActiveSupport::Concurrency::ShareLock#start_exclusive $GemPath0/gems/activesupport-5.0.2/lib/active_support/concurrency/share_lock.rb:75
                                              • ActiveSupport::Concurrency::ShareLock#mon_synchronize /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:211
                                                • ActiveSupport::Concurrency::ShareLock#mon_enter /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:185
                                                  • #<Class:Thread>#current /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:186
                                                  • Thread::Mutex#lock /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:187
                                                  • #<Class:Thread>#current /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:188
                                                • ActiveSupport::Concurrency::ShareLock#block in start_exclusive $GemPath0/gems/activesupport-5.0.2/lib/active_support/concurrency/share_lock.rb:76
                                                  • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/concurrency/share_lock.rb:77
                                                • ActiveSupport::Concurrency::ShareLock#mon_exit /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:197
                                                  • ActiveSupport::Concurrency::ShareLock#mon_check_owner /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:247
                                                    • #<Class:Thread>#current /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:248
                                                  • Thread::Mutex#unlock /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:202
                                            • ActiveSupport::Dependencies::Interlock#block in loading $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies/interlock.rb:11
                                              • ActiveSupport::Dependencies.block in load_interlock $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:37
                                                • ActiveSupport::Dependencies.block in require_or_load $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:358
                                                  • ActiveSupport::Dependencies.loaded $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                  • Set#include? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:232
                                                  • ActiveSupport::Dependencies.loaded $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                  • Set#add /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:330
                                                  • ActiveSupport::Dependencies.loading $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                  • ActiveSupport::Dependencies.load? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:330
                                                    • ActiveSupport::Dependencies.mechanism $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                  • Kernel#nil? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:372
                                                  • ActiveSupport::Dependencies.warnings_on_first_load $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                  • ActiveSupport::Dependencies.load_file $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:471
                                                    • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:472
                                                    • Array#compact $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:472
                                                    • Array#collect $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:473
                                                      • ActiveSupport::Dependencies.block in load_file $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:473
                                                        • String#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:473
                                                    • ActiveSupport::Dependencies.new_constants_in $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:657
                                                      • ActiveSupport::Dependencies.constant_watch_stack $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                      • ActiveSupport::Dependencies::WatchStack#watch_namespaces $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:161
                                                        • Array#map $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:162
                                                          • ActiveSupport::Dependencies::WatchStack#block in watch_namespaces $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:162
                                                            • ActiveSupport::Dependencies.to_constant_name $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:676
                                                              • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:678
                                                              • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:679
                                                              • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:680
                                                              • Module#name $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:681
                                                            • ActiveSupport::Dependencies.qualified_const_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:396
                                                              • Module#const_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:397
                                                            • ActiveSupport::Inflector.constantize $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:257
                                                              • String#split $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:258
                                                              • Enumerable#inject $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:266
                                                                • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:266
                                                                  • ActiveSupport::Inflector.block in constantize $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:266
                                                                    • Module#const_get $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:268
                                                            • Module#constants $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:165
                                                      • ActiveSupport::Dependencies.block in load_file $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:476
                                                        • #<Class:Kernel>#load $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:477
                                                          • IO#set_encoding $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:477
                                                          • IO#set_encoding $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:477
                                                          • ActiveRecord::Base.inherited $GemPath0/gems/kaminari-activerecord-1.0.1/lib/kaminari/activerecord/active_record_extension.rb:10
                                                            • ActiveRecord::Base.inherited $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/time_zone_conversion.rb:72
                                                              • Module#class_eval $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/time_zone_conversion.rb:77
                                                                • ApplicationRecord.block in inherited $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/time_zone_conversion.rb:77
                                                                  • ApplicationRecord.decorate_matching_attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_decorators.rb:17
                                                                    • ApplicationRecord.reload_schema_from_cache $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:454
                                                                      • ApplicationRecord.direct_descendants $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:52
                                                                        • ActiveSupport::DescendantsTracker.direct_descendants $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:8
                                                                          • Kernel#hash $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:9
                                                                      • Array#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:466
                                                                    • Symbol#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_decorators.rb:19
                                                                    • ApplicationRecord.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                      • ApplicationRecord.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                    • ActiveRecord::AttributeDecorators::TypeDecorator#merge $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_decorators.rb:43
                                                                      • Hash#merge $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_decorators.rb:44
                                                                        • Kernel#initialize_dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_decorators.rb:44
                                                                          • Hash#initialize_copy $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_decorators.rb:44
                                                                      • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_decorators.rb:44
                                                                        • ActiveRecord::AttributeDecorators::TypeDecorator#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_decorators.rb:39
                                                                    • ApplicationRecord.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                                      • ApplicationRecord.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                                        • Kernel#singleton_class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                                        • Module#class_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                                          • #<Class:ApplicationRecord(abstract)>.block (3 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                                            • #<Class:ApplicationRecord(abstract)>.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                                              • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                                              • Module#undef_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                                                • BasicObject#singleton_method_undefined $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                                            • Module#define_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                              • BasicObject#singleton_method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                        • Module#singleton_class? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:93
                                                              • ActiveRecord::Base.inherited $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:40
                                                                • ApplicationRecord.initialize_generated_modules $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:45
                                                                  • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:46
                                                                    • Module#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:46
                                                                      • ActiveRecord::AttributeMethods::GeneratedAttributeMethods#block in initialize_generated_modules $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:46
                                                                        • Kernel#extend(Mutex_m) $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:46
                                                                          • Mutex_m.extend_object /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:56
                                                                            • Module#extend_object /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:57
                                                                            • ActiveRecord::AttributeMethods::GeneratedAttributeMethods#mu_extended /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:61
                                                                              • Kernel#respond_to_missing? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:62
                                                                              • Kernel#singleton_class /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:67
                                                                              • Mutex_m.define_aliases /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:41
                                                                                • Module#module_eval /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:42
                                                                                  • BasicObject#singleton_method_added (eval):2
                                                                                  • BasicObject#singleton_method_added (eval):3
                                                                                  • BasicObject#singleton_method_added (eval):4
                                                                                  • BasicObject#singleton_method_added (eval):5
                                                                                  • BasicObject#singleton_method_added (eval):6
                                                                              • ActiveRecord::AttributeMethods::GeneratedAttributeMethods#mu_initialize /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:104
                                                                                • Class#new /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:105
                                                                                  • Thread::Mutex#initialize /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:105
                                                                          • Module#extended $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:46
                                                                  • Module#include(#<#<Class:0x007f4c30028900>:0x007f4c383171b8>) $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:48
                                                                    • Module#append_features(#<#<Class:0x007f4c30028900>:0x007f4c383171b8>) $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:48
                                                                    • Module#included $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:48
                                                                  • ApplicationRecord.initialize_generated_modules $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:215
                                                                    • ApplicationRecord.generated_association_methods $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:219
                                                                      • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:221
                                                                        • Module#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:221
                                                                      • Module#const_set $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:221
                                                                      • Module#include(ApplicationRecord::GeneratedAssociationMethods) $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:222
                                                                        • Module#append_features(ApplicationRecord::GeneratedAssociationMethods) $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:222
                                                                        • Module#included $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:222
                                                                • ActiveRecord::Base.inherited $GemPath0/gems/activerecord-5.0.2/lib/active_record/locking/optimistic.rb:175
                                                                  • Module#class_eval $GemPath0/gems/activerecord-5.0.2/lib/active_record/locking/optimistic.rb:176
                                                                    • ApplicationRecord.block in inherited $GemPath0/gems/activerecord-5.0.2/lib/active_record/locking/optimistic.rb:176
                                                                      • ApplicationRecord.decorate_matching_attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_decorators.rb:17
                                                                        • ApplicationRecord.reload_schema_from_cache $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:454
                                                                          • ApplicationRecord.direct_descendants $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:52
                                                                            • ActiveSupport::DescendantsTracker.direct_descendants $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:8
                                                                              • Kernel#hash $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:9
                                                                          • Array#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:466
                                                                        • Symbol#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_decorators.rb:19
                                                                        • ApplicationRecord.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                          • ApplicationRecord.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                        • ActiveRecord::AttributeDecorators::TypeDecorator#merge $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_decorators.rb:43
                                                                          • Hash#merge $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_decorators.rb:44
                                                                            • Kernel#initialize_dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_decorators.rb:44
                                                                              • Hash#initialize_copy $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_decorators.rb:44
                                                                          • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_decorators.rb:44
                                                                            • ActiveRecord::AttributeDecorators::TypeDecorator#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_decorators.rb:39
                                                                        • ApplicationRecord.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                                          • ApplicationRecord.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                                            • Kernel#singleton_class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                                            • Module#class_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                                              • #<Class:ApplicationRecord(abstract)>.block (3 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                                                • #<Class:ApplicationRecord(abstract)>.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                                                  • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                                                  • Module#undef_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                                                    • BasicObject#singleton_method_undefined $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                                                • Module#define_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                  • BasicObject#singleton_method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                            • Module#singleton_class? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:93
                                                                  • ActiveRecord::Base.inherited $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations.rb:274
                                                                    • ActiveRecord::Base.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                      • ActiveRecord::Base.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                    • Kernel#dup $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations.rb:275
                                                                      • Kernel#initialize_dup $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations.rb:275
                                                                        • Hash#initialize_copy $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations.rb:275
                                                                    • Hash#each $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations.rb:276
                                                                    • ApplicationRecord.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                                      • ApplicationRecord.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                                        • Kernel#singleton_class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                                        • Module#class_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                                          • #<Class:ApplicationRecord(abstract)>.block (3 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                                            • #<Class:ApplicationRecord(abstract)>.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                                              • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                                              • Module#undef_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                                                • BasicObject#singleton_method_undefined $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                                            • Module#define_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                              • BasicObject#singleton_method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                        • Module#singleton_class? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:93
                                                                    • ActiveRecord::Base.inherited $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:142
                                                                      • ApplicationRecord.initialize_find_by_cache $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:138
                                                                        • Kernel#extend(Mutex_m) $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:139
                                                                          • Mutex_m.extend_object /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:56
                                                                            • Module#extend_object /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:57
                                                                            • Hash#mu_extended /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:61
                                                                              • Kernel#respond_to_missing? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:62
                                                                              • Kernel#singleton_class /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:67
                                                                              • Mutex_m.define_aliases /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:41
                                                                                • Module#module_eval /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:42
                                                                                  • BasicObject#singleton_method_added (eval):2
                                                                                  • BasicObject#singleton_method_added (eval):3
                                                                                  • BasicObject#singleton_method_added (eval):4
                                                                                  • BasicObject#singleton_method_added (eval):5
                                                                                  • BasicObject#singleton_method_added (eval):6
                                                                              • Hash#mu_initialize /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:104
                                                                                • Class#new /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:105
                                                                                  • Thread::Mutex#initialize /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:105
                                                                          • Module#extended $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:139
                                                                        • Kernel#extend(Mutex_m) $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:139
                                                                          • Mutex_m.extend_object /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:56
                                                                            • Module#extend_object /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:57
                                                                            • Hash#mu_extended /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:61
                                                                              • Kernel#respond_to_missing? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:62
                                                                              • Kernel#singleton_class /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:67
                                                                              • Mutex_m.define_aliases /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:41
                                                                                • Module#module_eval /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:42
                                                                                  • BasicObject#singleton_method_added (eval):2
                                                                                  • BasicObject#singleton_method_added (eval):3
                                                                                  • BasicObject#singleton_method_added (eval):4
                                                                                  • BasicObject#singleton_method_added (eval):5
                                                                                  • BasicObject#singleton_method_added (eval):6
                                                                              • Hash#mu_initialize /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:104
                                                                                • Class#new /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:105
                                                                                  • Thread::Mutex#initialize /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:105
                                                                          • Module#extended $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:139
                                                                      • ActiveRecord::Base.inherited $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:25
                                                                        • ApplicationRecord.initialize_relation_delegate_cache $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:10
                                                                          • Array#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:16
                                                                            • ApplicationRecord.block in initialize_relation_delegate_cache $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:16
                                                                              • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:17
                                                                                • Class#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:17
                                                                                  • Class#inherited $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:17
                                                                                  • ApplicationRecord::ActiveRecord_Relation.block (2 levels) in initialize_relation_delegate_cache $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:17
                                                                                    • Module#include(ApplicationRecord::ActiveRecord_Relation) $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:18
                                                                                      • ActiveRecord::Delegation::ClassSpecificRelation.append_features(ApplicationRecord::ActiveRecord_Relation) $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:111
                                                                                        • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:112
                                                                                        • Module#< $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:116
                                                                                        • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:117
                                                                                        • Module#append_features(ActiveRecord::Delegation::ClassSpecificRelation) $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:118
                                                                                        • Module#const_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:119
                                                                                        • Module#const_get $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:119
                                                                                        • Kernel#extend(ActiveRecord::Delegation::ClassSpecificRelation::ClassMethods) $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:119
                                                                                          • Module#extend_object $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:119
                                                                                          • Module#extended $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:119
                                                                                        • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:120
                                                                                        • Module#class_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:120
                                                                                          • ApplicationRecord::ActiveRecord_Relation.block in <module:ClassSpecificRelation> $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:49
                                                                                            • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:50
                                                                                              • Thread::Mutex#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:50
                                                                                      • ActiveRecord::Delegation::ClassSpecificRelation.included $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:124
                                                                                        • Kernel#nil? $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:125
                                                                                        • Module#included $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:130
                                                                              • Module#name $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:20
                                                                              • String#gsub $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:20
                                                                              • Module#const_set $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:20
                                                                              • Kernel#hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:21
                                                                            • ApplicationRecord.block in initialize_relation_delegate_cache $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:16
                                                                              • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:17
                                                                                • Class#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:17
                                                                                  • Class#inherited $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:17
                                                                                  • ApplicationRecord::ActiveRecord_Associations_CollectionProxy.block (2 levels) in initialize_relation_delegate_cache $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:17
                                                                                    • Module#include(ApplicationRecord::ActiveRecord_Associations_CollectionProxy) $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:18
                                                                                      • ActiveRecord::Delegation::ClassSpecificRelation.append_features(ApplicationRecord::ActiveRecord_Associations_CollectionProxy) $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:111
                                                                                        • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:112
                                                                                        • Module#< $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:116
                                                                                        • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:117
                                                                                        • Module#append_features(ActiveRecord::Delegation::ClassSpecificRelation) $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:118
                                                                                        • Module#const_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:119
                                                                                        • Module#const_get $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:119
                                                                                        • Kernel#extend(ActiveRecord::Delegation::ClassSpecificRelation::ClassMethods) $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:119
                                                                                          • Module#extend_object $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:119
                                                                                          • Module#extended $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:119
                                                                                        • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:120
                                                                                        • Module#class_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:120
                                                                                          • ApplicationRecord::ActiveRecord_Associations_CollectionProxy.block in <module:ClassSpecificRelation> $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:49
                                                                                            • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:50
                                                                                              • Thread::Mutex#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:50
                                                                                      • ActiveRecord::Delegation::ClassSpecificRelation.included $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:124
                                                                                        • Kernel#nil? $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:125
                                                                                        • Module#included $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:130
                                                                              • Module#name $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:20
                                                                              • String#gsub $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:20
                                                                              • Module#const_set $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:20
                                                                              • Kernel#hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:21
                                                                            • ApplicationRecord.block in initialize_relation_delegate_cache $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:16
                                                                              • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:17
                                                                                • Class#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:17
                                                                                  • Class#inherited $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:17
                                                                                  • ApplicationRecord::ActiveRecord_AssociationRelation.block (2 levels) in initialize_relation_delegate_cache $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:17
                                                                                    • Module#include(ApplicationRecord::ActiveRecord_AssociationRelation) $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:18
                                                                                      • ActiveRecord::Delegation::ClassSpecificRelation.append_features(ApplicationRecord::ActiveRecord_AssociationRelation) $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:111
                                                                                        • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:112
                                                                                        • Module#< $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:116
                                                                                        • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:117
                                                                                        • Module#append_features(ActiveRecord::Delegation::ClassSpecificRelation) $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:118
                                                                                        • Module#const_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:119
                                                                                        • Module#const_get $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:119
                                                                                        • Kernel#extend(ActiveRecord::Delegation::ClassSpecificRelation::ClassMethods) $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:119
                                                                                          • Module#extend_object $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:119
                                                                                          • Module#extended $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:119
                                                                                        • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:120
                                                                                        • Module#class_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:120
                                                                                          • ApplicationRecord::ActiveRecord_AssociationRelation.block in <module:ClassSpecificRelation> $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:49
                                                                                            • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:50
                                                                                              • Thread::Mutex#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:50
                                                                                      • ActiveRecord::Delegation::ClassSpecificRelation.included $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:124
                                                                                        • Kernel#nil? $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:125
                                                                                        • Module#included $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:130
                                                                              • Module#name $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:20
                                                                              • String#gsub $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:20
                                                                              • Module#const_set $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:20
                                                                              • Kernel#hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:21
                                                                        • ActiveRecord::Base.inherited $GemPath0/gems/activerecord-5.0.2/lib/active_record/enum.rb:102
                                                                          • ActiveRecord::Base.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                            • ActiveRecord::Base.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                          • Hash#deep_dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/deep_dup.rb:41
                                                                            • Kernel#dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/deep_dup.rb:42
                                                                              • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/deep_dup.rb:42
                                                                                • Hash#initialize_copy $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/deep_dup.rb:42
                                                                            • Hash#each_pair $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/deep_dup.rb:43
                                                                          • ApplicationRecord.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                                            • ApplicationRecord.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                                              • Kernel#singleton_class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                                              • Module#class_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                                                • #<Class:ApplicationRecord(abstract)>.block (3 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                                                  • #<Class:ApplicationRecord(abstract)>.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                                                    • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                                                    • Module#undef_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                                                      • BasicObject#singleton_method_undefined $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                                                  • Module#define_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                    • BasicObject#singleton_method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                              • Module#singleton_class? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:93
                                                                          • ActiveRecord::Base.inherited $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:47
                                                                            • ActiveSupport::DescendantsTracker.store_inherited $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:34
                                                                              • Kernel#hash $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:35
                                                                            • Class#inherited $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:49
                                                            • Class#superclass $GemPath0/gems/kaminari-activerecord-1.0.1/lib/kaminari/activerecord/active_record_extension.rb:12
                                                            • Module#include(ApplicationRecord) $GemPath0/gems/kaminari-activerecord-1.0.1/lib/kaminari/activerecord/active_record_extension.rb:12
                                                              • Kaminari::ActiveRecordModelExtension.append_features(ApplicationRecord) $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:111
                                                                • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:112
                                                                • Module#< $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:116
                                                                • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:117
                                                                • Module#append_features(Kaminari::ActiveRecordModelExtension) $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:118
                                                                • Module#const_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:119
                                                                • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:120
                                                                • Module#class_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:120
                                                                  • ApplicationRecord.block in <module:ActiveRecordModelExtension> $GemPath0/gems/kaminari-activerecord-1.0.1/lib/kaminari/activerecord/active_record_model_extension.rb:8
                                                                    • Module#include(ApplicationRecord) $GemPath0/gems/kaminari-activerecord-1.0.1/lib/kaminari/activerecord/active_record_model_extension.rb:9
                                                                      • Kaminari::ConfigurationMethods.append_features(ApplicationRecord) $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:111
                                                                        • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:112
                                                                        • Module#< $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:116
                                                                        • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:117
                                                                        • Module#append_features(Kaminari::ConfigurationMethods) $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:118
                                                                        • Module#const_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:119
                                                                        • Module#const_get $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:119
                                                                        • Kernel#extend(Kaminari::ConfigurationMethods::ClassMethods) $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:119
                                                                          • Module#extend_object $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:119
                                                                          • Module#extended $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:119
                                                                        • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:120
                                                                      • Kaminari::ConfigurationMethods.included $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:124
                                                                        • Kernel#nil? $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:125
                                                                        • Module#included $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:130
                                                                    • Kaminari.config $GemPath0/gems/activesupport-5.0.2/lib/active_support/configurable.rb:27
                                                                    • #<Class:0x007f4c6439d4a8>#method_missing $GemPath0/gems/activesupport-5.0.2/lib/active_support/ordered_options.rb:37
                                                                      • Symbol#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/ordered_options.rb:38
                                                                      • String#chomp! $GemPath0/gems/activesupport-5.0.2/lib/active_support/ordered_options.rb:39
                                                                      • String#chomp! $GemPath0/gems/activesupport-5.0.2/lib/active_support/ordered_options.rb:42
                                                                      • #<Class:0x007f4c6439d4a8>#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/ordered_options.rb:33
                                                                        • String#to_sym $GemPath0/gems/activesupport-5.0.2/lib/active_support/ordered_options.rb:34
                                                                        • Hash#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/ordered_options.rb:34
                                                                    • Symbol#to_s $GemPath0/gems/kaminari-activerecord-1.0.1/lib/kaminari/activerecord/active_record_model_extension.rb:14
                                                                    • Kernel#eval $GemPath0/gems/kaminari-activerecord-1.0.1/lib/kaminari/activerecord/active_record_model_extension.rb:13
                                                                      • BasicObject#singleton_method_added $GemPath0/gems/kaminari-activerecord-1.0.1/lib/kaminari/activerecord/active_record_model_extension.rb:14
                                                              • Kaminari::ActiveRecordModelExtension.included $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:124
                                                                • Kernel#nil? $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:125
                                                                • Module#included $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:130
                                                          • ApplicationRecord.<class:ApplicationRecord> /home/z/test_rails/dapo/app/models/application_record.rb:1
                                                      • ActiveSupport::Dependencies.constant_watch_stack $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                      • ActiveSupport::Dependencies::WatchStack#new_constants $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:124
                                                        • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:128
                                                        • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:128
                                                          • ActiveSupport::Dependencies::WatchStack#block in new_constants $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:128
                                                            • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:131
                                                            • ActiveSupport::Dependencies.qualified_const_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:396
                                                              • Module#const_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:397
                                                            • ActiveSupport::Inflector.constantize $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:257
                                                              • String#split $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:258
                                                              • Enumerable#inject $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:266
                                                                • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:266
                                                                  • ActiveSupport::Inflector.block in constantize $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:266
                                                                    • Module#const_get $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:268
                                                            • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:134
                                                            • Module#constants $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:137
                                                            • Array#- $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:137
                                                            • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:144
                                                              • ActiveSupport::Dependencies::WatchStack#block (2 levels) in new_constants $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:144
                                                                • Array#concat $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:145
                                                              • ActiveSupport::Dependencies::WatchStack#block (2 levels) in new_constants $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:144
                                                                • Array#concat $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:145
                                                            • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:149
                                                              • ActiveSupport::Dependencies::WatchStack#block (2 levels) in new_constants $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:149
                                                                • Array#- $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:150
                                                                • Array#join $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:150
                                                                  • Symbol#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:150
                                                        • Array#pop $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:156
                                                        • ActiveSupport::Dependencies::WatchStack#pop_modules $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:173
                                                          • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:174
                                                            • ActiveSupport::Dependencies::WatchStack#block in pop_modules $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:174
                                                              • Array#pop $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:174
                                                    • ActiveSupport::Dependencies.load_once_path? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:444
                                                      • ActiveSupport::Dependencies.autoload_once_paths $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                      • Array#any? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:447
                                                    • ActiveSupport::Dependencies.autoloaded_constants $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                    • Array#concat $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:480
                                                    • ActiveSupport::Dependencies.autoloaded_constants $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                    • Array#uniq! $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:481
                                                  • ActiveSupport::Dependencies.loading $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                  • Array#pop $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:386
                                                  • ActiveSupport::Dependencies.history $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                  • Set#add /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:330
                                            • ActiveSupport::Concurrency::ShareLock#stop_exclusive $GemPath0/gems/activesupport-5.0.2/lib/active_support/concurrency/share_lock.rb:95
                                              • ActiveSupport::Concurrency::ShareLock#mon_synchronize /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:211
                                                • ActiveSupport::Concurrency::ShareLock#mon_enter /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:185
                                                  • #<Class:Thread>#current /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:186
                                                  • Thread::Mutex#lock /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:187
                                                  • #<Class:Thread>#current /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:188
                                                • ActiveSupport::Concurrency::ShareLock#block in stop_exclusive $GemPath0/gems/activesupport-5.0.2/lib/active_support/concurrency/share_lock.rb:96
                                                  • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/concurrency/share_lock.rb:97
                                                • ActiveSupport::Concurrency::ShareLock#mon_exit /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:197
                                                  • ActiveSupport::Concurrency::ShareLock#mon_check_owner /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:247
                                                    • #<Class:Thread>#current /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:248
                                                  • Thread::Mutex#unlock /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:202
                                    • Module#const_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:512
                                    • Module#const_get $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:513
                                • ApplicationRecord.inherited $GemPath0/gems/kaminari-activerecord-1.0.1/lib/kaminari/activerecord/active_record_extension.rb:10
                                  • ApplicationRecord.inherited $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/time_zone_conversion.rb:72
                                    • Module#class_eval $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/time_zone_conversion.rb:77
                                      • Article.block in inherited $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/time_zone_conversion.rb:77
                                        • Article.decorate_matching_attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_decorators.rb:17
                                          • Article.reload_schema_from_cache $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:454
                                            • Article.direct_descendants $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:52
                                              • ActiveSupport::DescendantsTracker.direct_descendants $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:8
                                                • Kernel#hash $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:9
                                            • Array#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:466
                                          • Symbol#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_decorators.rb:19
                                          • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                            • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                          • ActiveRecord::AttributeDecorators::TypeDecorator#merge $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_decorators.rb:43
                                            • Hash#merge $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_decorators.rb:44
                                              • Kernel#initialize_dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_decorators.rb:44
                                                • Hash#initialize_copy $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_decorators.rb:44
                                            • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_decorators.rb:44
                                              • ActiveRecord::AttributeDecorators::TypeDecorator#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_decorators.rb:39
                                          • Article.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                            • Article.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                              • Kernel#singleton_class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                              • Module#class_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.block (3 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                  • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                    • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                    • Module#undef_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                      • BasicObject#singleton_method_undefined $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                  • Module#define_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                    • BasicObject#singleton_method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                              • Module#singleton_class? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:93
                                    • ApplicationRecord.inherited $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:40
                                      • Article.initialize_generated_modules $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:45
                                        • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:46
                                          • Module#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:46
                                            • ActiveRecord::AttributeMethods::GeneratedAttributeMethods#block in initialize_generated_modules $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:46
                                              • Kernel#extend(Mutex_m) $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:46
                                                • Mutex_m.extend_object /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:56
                                                  • Module#extend_object /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:57
                                                  • ActiveRecord::AttributeMethods::GeneratedAttributeMethods#mu_extended /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:61
                                                    • Kernel#respond_to_missing? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:62
                                                    • Kernel#singleton_class /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:67
                                                    • Mutex_m.define_aliases /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:41
                                                      • Module#module_eval /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:42
                                                        • BasicObject#singleton_method_added (eval):2
                                                        • BasicObject#singleton_method_added (eval):3
                                                        • BasicObject#singleton_method_added (eval):4
                                                        • BasicObject#singleton_method_added (eval):5
                                                        • BasicObject#singleton_method_added (eval):6
                                                    • ActiveRecord::AttributeMethods::GeneratedAttributeMethods#mu_initialize /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:104
                                                      • Class#new /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:105
                                                        • Thread::Mutex#initialize /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:105
                                                • Module#extended $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:46
                                        • Module#include(#<#<Class:0x007f4c24da8a78>:0x007f4c34242a48>) $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:48
                                          • Module#append_features(#<#<Class:0x007f4c24da8a78>:0x007f4c34242a48>) $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:48
                                          • Module#included $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:48
                                        • Article.initialize_generated_modules $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:215
                                          • Article.generated_association_methods $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:219
                                            • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:221
                                              • Module#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:221
                                            • Module#const_set $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:221
                                            • Module#include(Article::GeneratedAssociationMethods) $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:222
                                              • Module#append_features(Article::GeneratedAssociationMethods) $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:222
                                              • Module#included $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:222
                                      • ApplicationRecord.inherited $GemPath0/gems/activerecord-5.0.2/lib/active_record/locking/optimistic.rb:175
                                        • Module#class_eval $GemPath0/gems/activerecord-5.0.2/lib/active_record/locking/optimistic.rb:176
                                          • Article.block in inherited $GemPath0/gems/activerecord-5.0.2/lib/active_record/locking/optimistic.rb:176
                                            • Article.decorate_matching_attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_decorators.rb:17
                                              • Article.reload_schema_from_cache $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:454
                                                • Article.direct_descendants $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:52
                                                  • ActiveSupport::DescendantsTracker.direct_descendants $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:8
                                                    • Kernel#hash $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:9
                                                • Array#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:466
                                              • Symbol#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_decorators.rb:19
                                              • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                              • ActiveRecord::AttributeDecorators::TypeDecorator#merge $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_decorators.rb:43
                                                • Hash#merge $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_decorators.rb:44
                                                  • Kernel#initialize_dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_decorators.rb:44
                                                    • Hash#initialize_copy $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_decorators.rb:44
                                                • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_decorators.rb:44
                                                  • ActiveRecord::AttributeDecorators::TypeDecorator#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_decorators.rb:39
                                              • Article.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                • Article.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                  • Kernel#singleton_class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                  • Module#class_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                    • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.block (3 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                      • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                        • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                        • Module#undef_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                          • BasicObject#singleton_method_undefined $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                      • Module#define_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                        • BasicObject#singleton_method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                  • Module#singleton_class? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:93
                                        • ApplicationRecord.inherited $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations.rb:274
                                          • ApplicationRecord.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                            • ApplicationRecord.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                          • Kernel#dup $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations.rb:275
                                            • Kernel#initialize_dup $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations.rb:275
                                              • Hash#initialize_copy $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations.rb:275
                                          • Hash#each $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations.rb:276
                                          • Article.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                            • Article.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                              • Kernel#singleton_class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                              • Module#class_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.block (3 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                  • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                    • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                    • Module#undef_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                      • BasicObject#singleton_method_undefined $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                  • Module#define_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                    • BasicObject#singleton_method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                              • Module#singleton_class? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:93
                                          • ApplicationRecord.inherited $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:142
                                            • Article.initialize_find_by_cache $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:138
                                              • Kernel#extend(Mutex_m) $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:139
                                                • Mutex_m.extend_object /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:56
                                                  • Module#extend_object /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:57
                                                  • Hash#mu_extended /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:61
                                                    • Kernel#respond_to_missing? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:62
                                                    • Kernel#singleton_class /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:67
                                                    • Mutex_m.define_aliases /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:41
                                                      • Module#module_eval /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:42
                                                        • BasicObject#singleton_method_added (eval):2
                                                        • BasicObject#singleton_method_added (eval):3
                                                        • BasicObject#singleton_method_added (eval):4
                                                        • BasicObject#singleton_method_added (eval):5
                                                        • BasicObject#singleton_method_added (eval):6
                                                    • Hash#mu_initialize /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:104
                                                      • Class#new /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:105
                                                        • Thread::Mutex#initialize /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:105
                                                • Module#extended $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:139
                                              • Kernel#extend(Mutex_m) $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:139
                                                • Mutex_m.extend_object /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:56
                                                  • Module#extend_object /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:57
                                                  • Hash#mu_extended /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:61
                                                    • Kernel#respond_to_missing? /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:62
                                                    • Kernel#singleton_class /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:67
                                                    • Mutex_m.define_aliases /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:41
                                                      • Module#module_eval /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:42
                                                        • BasicObject#singleton_method_added (eval):2
                                                        • BasicObject#singleton_method_added (eval):3
                                                        • BasicObject#singleton_method_added (eval):4
                                                        • BasicObject#singleton_method_added (eval):5
                                                        • BasicObject#singleton_method_added (eval):6
                                                    • Hash#mu_initialize /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:104
                                                      • Class#new /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:105
                                                        • Thread::Mutex#initialize /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/mutex_m.rb:105
                                                • Module#extended $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:139
                                            • ApplicationRecord.inherited $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:25
                                              • Article.initialize_relation_delegate_cache $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:10
                                                • Array#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:16
                                                  • Article.block in initialize_relation_delegate_cache $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:16
                                                    • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:17
                                                      • Class#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:17
                                                        • Class#inherited $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:17
                                                        • Article::ActiveRecord_Relation.block (2 levels) in initialize_relation_delegate_cache $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:17
                                                          • Module#include(Article::ActiveRecord_Relation) $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:18
                                                            • ActiveRecord::Delegation::ClassSpecificRelation.append_features(Article::ActiveRecord_Relation) $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:111
                                                              • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:112
                                                              • Module#< $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:116
                                                              • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:117
                                                              • Module#append_features(ActiveRecord::Delegation::ClassSpecificRelation) $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:118
                                                              • Module#const_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:119
                                                              • Module#const_get $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:119
                                                              • Kernel#extend(ActiveRecord::Delegation::ClassSpecificRelation::ClassMethods) $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:119
                                                                • Module#extend_object $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:119
                                                                • Module#extended $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:119
                                                              • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:120
                                                              • Module#class_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:120
                                                                • Article::ActiveRecord_Relation.block in <module:ClassSpecificRelation> $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:49
                                                                  • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:50
                                                                    • Thread::Mutex#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:50
                                                            • ActiveRecord::Delegation::ClassSpecificRelation.included $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:124
                                                              • Kernel#nil? $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:125
                                                              • Module#included $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:130
                                                    • Module#name $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:20
                                                    • String#gsub $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:20
                                                    • Module#const_set $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:20
                                                    • Kernel#hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:21
                                                  • Article.block in initialize_relation_delegate_cache $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:16
                                                    • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:17
                                                      • Class#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:17
                                                        • Class#inherited $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:17
                                                        • Article::ActiveRecord_Associations_CollectionProxy.block (2 levels) in initialize_relation_delegate_cache $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:17
                                                          • Module#include(Article::ActiveRecord_Associations_CollectionProxy) $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:18
                                                            • ActiveRecord::Delegation::ClassSpecificRelation.append_features(Article::ActiveRecord_Associations_CollectionProxy) $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:111
                                                              • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:112
                                                              • Module#< $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:116
                                                              • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:117
                                                              • Module#append_features(ActiveRecord::Delegation::ClassSpecificRelation) $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:118
                                                              • Module#const_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:119
                                                              • Module#const_get $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:119
                                                              • Kernel#extend(ActiveRecord::Delegation::ClassSpecificRelation::ClassMethods) $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:119
                                                                • Module#extend_object $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:119
                                                                • Module#extended $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:119
                                                              • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:120
                                                              • Module#class_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:120
                                                                • Article::ActiveRecord_Associations_CollectionProxy.block in <module:ClassSpecificRelation> $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:49
                                                                  • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:50
                                                                    • Thread::Mutex#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:50
                                                            • ActiveRecord::Delegation::ClassSpecificRelation.included $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:124
                                                              • Kernel#nil? $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:125
                                                              • Module#included $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:130
                                                    • Module#name $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:20
                                                    • String#gsub $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:20
                                                    • Module#const_set $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:20
                                                    • Kernel#hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:21
                                                  • Article.block in initialize_relation_delegate_cache $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:16
                                                    • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:17
                                                      • Class#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:17
                                                        • Class#inherited $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:17
                                                        • Article::ActiveRecord_AssociationRelation.block (2 levels) in initialize_relation_delegate_cache $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:17
                                                          • Module#include(Article::ActiveRecord_AssociationRelation) $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:18
                                                            • ActiveRecord::Delegation::ClassSpecificRelation.append_features(Article::ActiveRecord_AssociationRelation) $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:111
                                                              • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:112
                                                              • Module#< $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:116
                                                              • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:117
                                                              • Module#append_features(ActiveRecord::Delegation::ClassSpecificRelation) $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:118
                                                              • Module#const_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:119
                                                              • Module#const_get $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:119
                                                              • Kernel#extend(ActiveRecord::Delegation::ClassSpecificRelation::ClassMethods) $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:119
                                                                • Module#extend_object $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:119
                                                                • Module#extended $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:119
                                                              • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:120
                                                              • Module#class_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:120
                                                                • Article::ActiveRecord_AssociationRelation.block in <module:ClassSpecificRelation> $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:49
                                                                  • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:50
                                                                    • Thread::Mutex#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:50
                                                            • ActiveRecord::Delegation::ClassSpecificRelation.included $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:124
                                                              • Kernel#nil? $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:125
                                                              • Module#included $GemPath0/gems/activesupport-5.0.2/lib/active_support/concern.rb:130
                                                    • Module#name $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:20
                                                    • String#gsub $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:20
                                                    • Module#const_set $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:20
                                                    • Kernel#hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:21
                                              • ApplicationRecord.inherited $GemPath0/gems/activerecord-5.0.2/lib/active_record/enum.rb:102
                                                • ApplicationRecord.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                  • ApplicationRecord.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                • Hash#deep_dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/deep_dup.rb:41
                                                  • Kernel#dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/deep_dup.rb:42
                                                    • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/deep_dup.rb:42
                                                      • Hash#initialize_copy $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/deep_dup.rb:42
                                                  • Hash#each_pair $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/deep_dup.rb:43
                                                • Article.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                  • Article.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                    • Kernel#singleton_class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                    • Module#class_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                      • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.block (3 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                        • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                          • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                          • Module#undef_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                            • BasicObject#singleton_method_undefined $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                        • Module#define_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                          • BasicObject#singleton_method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                    • Module#singleton_class? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:93
                                                • ApplicationRecord.inherited $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:47
                                                  • ActiveSupport::DescendantsTracker.store_inherited $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:34
                                                    • Kernel#hash $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:35
                                                    • Kernel#hash $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:35
                                                  • Class#inherited $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:49
                                  • Class#superclass $GemPath0/gems/kaminari-activerecord-1.0.1/lib/kaminari/activerecord/active_record_extension.rb:12
                                • Article.<class:Article> /home/z/test_rails/dapo/app/models/article.rb:1
                                  • Article.table_name= $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:223
                                    • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:224
                                  • Article.has_many $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:1364
                                    • ActiveRecord::Associations::Builder::HasMany.build $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/association.rb:21
                                      • Article.dangerous_attribute_method? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/primary_key.rb:65
                                        • Article.dangerous_attribute_method? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:107
                                          • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:111
                                          • Article.method_defined_within? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:111
                                            • Module#method_defined? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:112
                                            • Module#private_method_defined? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:112
                                      • ActiveRecord::Associations::Builder::HasMany.define_extensions $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:24
                                        • Kernel#block_given? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:25
                                      • ActiveRecord::Associations::Builder::HasMany.create_reflection $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/association.rb:36
                                        • Kernel#kind_of? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/association.rb:37
                                        • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/association.rb:39
                                        • ActiveRecord::Associations::Builder::HasMany.validate_options $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/association.rb:77
                                          • ActiveRecord::Associations::Builder::HasMany.valid_options $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/has_many.rb:7
                                            • ActiveRecord::Associations::Builder::HasMany.valid_options $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:10
                                              • ActiveRecord::Associations::Builder::HasMany.valid_options $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/association.rb:73
                                                • Enumerable#flat_map $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/association.rb:74
                                                  • Array#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/association.rb:74
                                                    • ActiveRecord::AutosaveAssociation::AssociationBuilderExtension.valid_options $GemPath0/gems/activerecord-5.0.2/lib/active_record/autosave_association.rb:136
                                          • Hash#assert_valid_keys $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/keys.rb:75
                                            • Array#flatten! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/keys.rb:76
                                            • Hash#each_key $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/keys.rb:77
                                        • ActiveRecord::Associations::Builder::HasMany.build_scope $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/association.rb:51
                                        • ActiveRecord::Associations::Builder::HasMany.macro $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/has_many.rb:3
                                        • ActiveRecord::Reflection.create $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:16
                                          • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:30
                                            • ActiveRecord::Reflection::HasManyReflection#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:360
                                              • ActiveRecord::Reflection::HasManyReflection#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:273
                                                • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                  • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                • Symbol#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:280
                                                • String#pluralize $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/string/inflections.rb:31
                                                  • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/string/inflections.rb:32
                                                  • ActiveSupport::Inflector.pluralize $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:29
                                                    • ActiveSupport::Inflector.inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:234
                                                      • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:235
                                                      • ActiveSupport::Inflector::Inflections.instance $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:61
                                                        • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:92
                                                          • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:19
                                                    • ActiveSupport::Inflector.apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:379
                                                      • String#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:380
                                                      • Kernel#dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:380
                                                        • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:380
                                                          • String#initialize_copy $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:380
                                                      • ActiveSupport::Inflector.inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:234
                                                        • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:235
                                                        • ActiveSupport::Inflector::Inflections.instance $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:61
                                                          • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:92
                                                            • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:19
                                                      • ActiveSupport::Inflector::Inflections::Uncountables#uncountable? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:51
                                                        • Array#any? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                          • ActiveSupport::Inflector::Inflections::Uncountables#block in uncountable? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                            • Regexp#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                          • ActiveSupport::Inflector::Inflections::Uncountables#block in uncountable? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                            • Regexp#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                          • ActiveSupport::Inflector::Inflections::Uncountables#block in uncountable? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                            • Regexp#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                          • ActiveSupport::Inflector::Inflections::Uncountables#block in uncountable? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                            • Regexp#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                          • ActiveSupport::Inflector::Inflections::Uncountables#block in uncountable? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                            • Regexp#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                          • ActiveSupport::Inflector::Inflections::Uncountables#block in uncountable? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                            • Regexp#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                          • ActiveSupport::Inflector::Inflections::Uncountables#block in uncountable? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                            • Regexp#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                          • ActiveSupport::Inflector::Inflections::Uncountables#block in uncountable? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                            • Regexp#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                          • ActiveSupport::Inflector::Inflections::Uncountables#block in uncountable? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                            • Regexp#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                          • ActiveSupport::Inflector::Inflections::Uncountables#block in uncountable? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                            • Regexp#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                      • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                        • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                          • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                        • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                          • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                        • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                          • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                        • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                          • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                        • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                          • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                        • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                          • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                        • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                          • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                        • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                          • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                        • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                          • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                        • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                          • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                        • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                          • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                        • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                          • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                        • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                          • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                        • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                          • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                        • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                          • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                        • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                          • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                        • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                          • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                        • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                          • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                        • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                          • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                        • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                          • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                        • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                          • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                        • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                          • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                        • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                          • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                        • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                          • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                        • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                          • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                        • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                          • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                        • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                          • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                        • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                          • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                        • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                          • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                        • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                          • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                        • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                          • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                        • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                          • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                              • Symbol#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:364
                                              • ActiveRecord::Reflection::HasManyReflection#macro $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:632
                                              • ActiveRecord::Reflection::HasManyReflection#calculate_constructable $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:538
                                              • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:367
                                                • Thread::Mutex#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:367
                                      • ActiveRecord::Associations::Builder::HasMany.define_accessors $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/association.rb:101
                                        • Article.generated_association_methods $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:219
                                        • ActiveRecord::Associations::Builder::HasMany.define_readers $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:51
                                          • ActiveRecord::Associations::Builder::HasMany.define_readers $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/association.rb:108
                                            • Symbol#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/association.rb:110
                                            • Symbol#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/association.rb:111
                                            • Module#class_eval $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/association.rb:109
                                              • Module#method_added $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/association.rb:110
                                          • Symbol#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:55
                                          • String#singularize $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/string/inflections.rb:54
                                            • ActiveSupport::Inflector.singularize $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:46
                                              • ActiveSupport::Inflector.inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:234
                                                • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:235
                                                • ActiveSupport::Inflector::Inflections.instance $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:61
                                                  • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:92
                                                    • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:19
                                              • ActiveSupport::Inflector.apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:379
                                                • String#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:380
                                                • Kernel#dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:380
                                                  • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:380
                                                    • String#initialize_copy $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:380
                                                • ActiveSupport::Inflector.inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:234
                                                  • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:235
                                                  • ActiveSupport::Inflector::Inflections.instance $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:61
                                                    • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:92
                                                      • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:19
                                                • ActiveSupport::Inflector::Inflections::Uncountables#uncountable? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:51
                                                  • Array#any? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                    • ActiveSupport::Inflector::Inflections::Uncountables#block in uncountable? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                      • Regexp#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                    • ActiveSupport::Inflector::Inflections::Uncountables#block in uncountable? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                      • Regexp#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                    • ActiveSupport::Inflector::Inflections::Uncountables#block in uncountable? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                      • Regexp#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                    • ActiveSupport::Inflector::Inflections::Uncountables#block in uncountable? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                      • Regexp#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                    • ActiveSupport::Inflector::Inflections::Uncountables#block in uncountable? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                      • Regexp#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                    • ActiveSupport::Inflector::Inflections::Uncountables#block in uncountable? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                      • Regexp#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                    • ActiveSupport::Inflector::Inflections::Uncountables#block in uncountable? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                      • Regexp#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                    • ActiveSupport::Inflector::Inflections::Uncountables#block in uncountable? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                      • Regexp#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                    • ActiveSupport::Inflector::Inflections::Uncountables#block in uncountable? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                      • Regexp#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                    • ActiveSupport::Inflector::Inflections::Uncountables#block in uncountable? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                      • Regexp#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                          • Symbol#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:56
                                          • Module#class_eval $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:54
                                            • Module#method_added $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:55
                                        • ActiveRecord::Associations::Builder::HasMany.define_writers $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:61
                                          • ActiveRecord::Associations::Builder::HasMany.define_writers $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/association.rb:116
                                            • Symbol#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/association.rb:118
                                            • Symbol#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/association.rb:119
                                            • Module#class_eval $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/association.rb:117
                                              • Module#method_added $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/association.rb:118
                                          • Symbol#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:65
                                          • String#singularize $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/string/inflections.rb:54
                                            • ActiveSupport::Inflector.singularize $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:46
                                              • ActiveSupport::Inflector.inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:234
                                                • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:235
                                                • ActiveSupport::Inflector::Inflections.instance $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:61
                                                  • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:92
                                                    • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:19
                                              • ActiveSupport::Inflector.apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:379
                                                • String#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:380
                                                • Kernel#dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:380
                                                  • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:380
                                                    • String#initialize_copy $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:380
                                                • ActiveSupport::Inflector.inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:234
                                                  • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:235
                                                  • ActiveSupport::Inflector::Inflections.instance $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:61
                                                    • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:92
                                                      • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:19
                                                • ActiveSupport::Inflector::Inflections::Uncountables#uncountable? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:51
                                                  • Array#any? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                    • ActiveSupport::Inflector::Inflections::Uncountables#block in uncountable? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                      • Regexp#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                    • ActiveSupport::Inflector::Inflections::Uncountables#block in uncountable? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                      • Regexp#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                    • ActiveSupport::Inflector::Inflections::Uncountables#block in uncountable? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                      • Regexp#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                    • ActiveSupport::Inflector::Inflections::Uncountables#block in uncountable? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                      • Regexp#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                    • ActiveSupport::Inflector::Inflections::Uncountables#block in uncountable? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                      • Regexp#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                    • ActiveSupport::Inflector::Inflections::Uncountables#block in uncountable? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                      • Regexp#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                    • ActiveSupport::Inflector::Inflections::Uncountables#block in uncountable? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                      • Regexp#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                    • ActiveSupport::Inflector::Inflections::Uncountables#block in uncountable? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                      • Regexp#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                    • ActiveSupport::Inflector::Inflections::Uncountables#block in uncountable? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                      • Regexp#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                    • ActiveSupport::Inflector::Inflections::Uncountables#block in uncountable? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                      • Regexp#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:52
                                                • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                  • ActiveSupport::Inflector.block in apply_inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                                    • String#sub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:385
                                          • Symbol#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:66
                                          • Module#class_eval $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:64
                                            • Module#method_added $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:65
                                      • ActiveRecord::Associations::Builder::HasMany.define_callbacks $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:15
                                        • ActiveRecord::Associations::Builder::HasMany.define_callbacks $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/association.rb:84
                                          • Array#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/association.rb:90
                                            • ActiveRecord::Associations::Builder::HasMany.block in define_callbacks $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/association.rb:90
                                              • ActiveRecord::AutosaveAssociation::AssociationBuilderExtension.build $GemPath0/gems/activerecord-5.0.2/lib/active_record/autosave_association.rb:132
                                                • Article.add_autosave_association_callbacks $GemPath0/gems/activerecord-5.0.2/lib/active_record/autosave_association.rb:179
                                                  • Symbol#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/autosave_association.rb:180
                                                  • String#intern $GemPath0/gems/activerecord-5.0.2/lib/active_record/autosave_association.rb:180
                                                  • ActiveRecord::Reflection::HasManyReflection#collection? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:634
                                                  • Article.block in _define_before_model_callback $GemPath0/gems/activemodel-5.0.2/lib/active_model/callbacks.rb:126
                                                    • Article.block in _define_before_model_callback $GemPath0/gems/activemodel-5.0.2/lib/active_model/callbacks.rb:126
                                                      • Symbol#to_s $GemPath0/gems/activemodel-5.0.2/lib/active_model/callbacks.rb:127
                                                      • String#intern $GemPath0/gems/activemodel-5.0.2/lib/active_model/callbacks.rb:127
                                                      • Article.set_callback $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:609
                                                        • Article.normalize_callback_params $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:556
                                                          • Array#first $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:557
                                                          • Array#include? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:557
                                                          • Array#shift $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:557
                                                          • Array#extract_options! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:22
                                                            • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                            • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                          • Kernel#dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:560
                                                            • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:560
                                                              • Hash#initialize_copy $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:560
                                                        • Article.get_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:758
                                                          • Symbol#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:759
                                                          • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                            • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                        • Array#map $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:612
                                                          • Article.block in set_callback $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:612
                                                            • ActiveSupport::Callbacks::Callback.build $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:297
                                                              • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:298
                                                              • Class#new $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:305
                                                                • ActiveSupport::Callbacks::Callback#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:311
                                                                  • ActiveSupport::Callbacks::Callback#compute_identifier $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:410
                                                                    • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:412
                                                                    • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:412
                                                                  • Kernel#Array $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:317
                                                                    • NilClass#to_a $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:317
                                                                  • Kernel#Array $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:318
                                                                    • NilClass#to_a $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:318
                                                        • Article.__update_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:565
                                                          • ActiveSupport::DescendantsTracker.descendants $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:12
                                                            • ActiveSupport::DescendantsTracker.accumulate_descendants $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:39
                                                              • Kernel#hash $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:40
                                                          • Array#reverse_each $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:566
                                                            • Article.block in __update_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:566
                                                              • Article.get_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:758
                                                                • Symbol#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:759
                                                                • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                  • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                              • Kernel#dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:568
                                                                • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:568
                                                                  • ActiveSupport::Callbacks::CallbackChain#initialize_copy $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:498
                                                                    • ActiveSupport::Callbacks::CallbackChain#chain $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:522
                                                                    • Kernel#dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:500
                                                                      • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:500
                                                                        • Array#initialize_copy $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:500
                                                                    • Class#new $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:501
                                                                      • Thread::Mutex#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:501
                                                              • Article.block in set_callback $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:616
                                                                • ActiveSupport::Callbacks::CallbackChain#append $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:513
                                                                  • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:514
                                                                    • ActiveSupport::Callbacks::CallbackChain#block in append $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:514
                                                                      • ActiveSupport::Callbacks::CallbackChain#append_one $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:526
                                                                        • ActiveSupport::Callbacks::CallbackChain#remove_duplicates $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:538
                                                                          • Array#delete_if $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:540
                                                                        • Array#push $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:529
                                                                • Article.set_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:762
                                                                  • Symbol#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:763
                                                                  • Article.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                                    • Article.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                                      • Kernel#singleton_class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                                      • Module#class_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                                        • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.block (3 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                                          • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                                            • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                                            • Module#undef_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                                              • BasicObject#singleton_method_undefined $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                                          • Module#define_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                            • BasicObject#singleton_method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                      • Module#singleton_class? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:93
                                                  • Article.define_non_cyclic_method $GemPath0/gems/activerecord-5.0.2/lib/active_record/autosave_association.rb:150
                                                    • Module#method_defined? $GemPath0/gems/activerecord-5.0.2/lib/active_record/autosave_association.rb:151
                                                    • Module#define_method $GemPath0/gems/activerecord-5.0.2/lib/active_record/autosave_association.rb:152
                                                      • Module#method_added $GemPath0/gems/activerecord-5.0.2/lib/active_record/autosave_association.rb:152
                                                  • Article.block in _define_after_model_callback $GemPath0/gems/activemodel-5.0.2/lib/active_model/callbacks.rb:138
                                                    • Article.block in _define_after_model_callback $GemPath0/gems/activemodel-5.0.2/lib/active_model/callbacks.rb:138
                                                      • Array#extract_options! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:22
                                                        • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                        • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                      • Class#new $GemPath0/gems/activemodel-5.0.2/lib/active_model/callbacks.rb:141
                                                        • ActiveSupport::Callbacks::Conditionals::Value#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:113
                                                      • Kernel#Array $GemPath0/gems/activemodel-5.0.2/lib/active_model/callbacks.rb:144
                                                        • NilClass#to_a $GemPath0/gems/activemodel-5.0.2/lib/active_model/callbacks.rb:144
                                                      • Symbol#to_s $GemPath0/gems/activemodel-5.0.2/lib/active_model/callbacks.rb:145
                                                      • String#intern $GemPath0/gems/activemodel-5.0.2/lib/active_model/callbacks.rb:145
                                                      • Article.set_callback $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:609
                                                        • Article.normalize_callback_params $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:556
                                                          • Array#first $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:557
                                                          • Array#include? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:557
                                                          • Array#shift $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:557
                                                          • Array#extract_options! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:22
                                                            • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                            • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                            • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                            • Hash#extractable_options? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:7
                                                              • Kernel#instance_of? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:8
                                                            • Array#pop $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:24
                                                          • Kernel#dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:560
                                                            • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:560
                                                              • Hash#initialize_copy $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:560
                                                        • Article.get_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:758
                                                          • Symbol#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:759
                                                          • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                            • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                        • Array#map $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:612
                                                          • Article.block in set_callback $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:612
                                                            • ActiveSupport::Callbacks::Callback.build $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:297
                                                              • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:298
                                                              • Class#new $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:305
                                                                • ActiveSupport::Callbacks::Callback#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:311
                                                                  • ActiveSupport::Callbacks::Callback#compute_identifier $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:410
                                                                    • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:412
                                                                    • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:412
                                                                  • Kernel#Array $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:317
                                                                  • Kernel#Array $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:318
                                                                    • NilClass#to_a $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:318
                                                        • Article.__update_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:565
                                                          • ActiveSupport::DescendantsTracker.descendants $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:12
                                                            • ActiveSupport::DescendantsTracker.accumulate_descendants $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:39
                                                              • Kernel#hash $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:40
                                                          • Array#reverse_each $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:566
                                                            • Article.block in __update_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:566
                                                              • Article.get_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:758
                                                                • Symbol#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:759
                                                                • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                  • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                              • Kernel#dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:568
                                                                • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:568
                                                                  • ActiveSupport::Callbacks::CallbackChain#initialize_copy $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:498
                                                                    • ActiveSupport::Callbacks::CallbackChain#chain $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:522
                                                                    • Kernel#dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:500
                                                                      • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:500
                                                                        • Array#initialize_copy $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:500
                                                                    • Class#new $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:501
                                                                      • Thread::Mutex#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:501
                                                              • Article.block in set_callback $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:616
                                                                • ActiveSupport::Callbacks::CallbackChain#prepend $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:517
                                                                  • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:518
                                                                    • ActiveSupport::Callbacks::CallbackChain#block in prepend $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:518
                                                                      • ActiveSupport::Callbacks::CallbackChain#prepend_one $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:532
                                                                        • ActiveSupport::Callbacks::CallbackChain#remove_duplicates $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:538
                                                                          • Array#delete_if $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:540
                                                                        • Array#unshift $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:535
                                                                • Article.set_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:762
                                                                  • Symbol#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:763
                                                                  • Article.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                                    • Article.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                                      • Kernel#singleton_class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                                      • Module#class_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                                        • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.block (3 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                                          • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                                            • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                                            • Module#undef_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                                              • BasicObject#singleton_method_undefined $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                                          • Module#define_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                            • BasicObject#singleton_method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                      • Module#singleton_class? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:93
                                                  • Article.block in _define_after_model_callback $GemPath0/gems/activemodel-5.0.2/lib/active_model/callbacks.rb:138
                                                    • Article.block in _define_after_model_callback $GemPath0/gems/activemodel-5.0.2/lib/active_model/callbacks.rb:138
                                                      • Array#extract_options! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:22
                                                        • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                        • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                      • Class#new $GemPath0/gems/activemodel-5.0.2/lib/active_model/callbacks.rb:141
                                                        • ActiveSupport::Callbacks::Conditionals::Value#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:113
                                                      • Kernel#Array $GemPath0/gems/activemodel-5.0.2/lib/active_model/callbacks.rb:144
                                                        • NilClass#to_a $GemPath0/gems/activemodel-5.0.2/lib/active_model/callbacks.rb:144
                                                      • Symbol#to_s $GemPath0/gems/activemodel-5.0.2/lib/active_model/callbacks.rb:145
                                                      • String#intern $GemPath0/gems/activemodel-5.0.2/lib/active_model/callbacks.rb:145
                                                      • Article.set_callback $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:609
                                                        • Article.normalize_callback_params $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:556
                                                          • Array#first $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:557
                                                          • Array#include? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:557
                                                          • Array#shift $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:557
                                                          • Array#extract_options! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:22
                                                            • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                            • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                            • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                            • Hash#extractable_options? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:7
                                                              • Kernel#instance_of? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:8
                                                            • Array#pop $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:24
                                                          • Kernel#dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:560
                                                            • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:560
                                                              • Hash#initialize_copy $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:560
                                                        • Article.get_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:758
                                                          • Symbol#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:759
                                                          • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                            • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                        • Array#map $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:612
                                                          • Article.block in set_callback $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:612
                                                            • ActiveSupport::Callbacks::Callback.build $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:297
                                                              • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:298
                                                              • Class#new $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:305
                                                                • ActiveSupport::Callbacks::Callback#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:311
                                                                  • ActiveSupport::Callbacks::Callback#compute_identifier $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:410
                                                                    • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:412
                                                                    • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:412
                                                                  • Kernel#Array $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:317
                                                                  • Kernel#Array $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:318
                                                                    • NilClass#to_a $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:318
                                                        • Article.__update_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:565
                                                          • ActiveSupport::DescendantsTracker.descendants $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:12
                                                            • ActiveSupport::DescendantsTracker.accumulate_descendants $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:39
                                                              • Kernel#hash $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:40
                                                          • Array#reverse_each $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:566
                                                            • Article.block in __update_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:566
                                                              • Article.get_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:758
                                                                • Symbol#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:759
                                                                • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                  • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                              • Kernel#dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:568
                                                                • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:568
                                                                  • ActiveSupport::Callbacks::CallbackChain#initialize_copy $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:498
                                                                    • ActiveSupport::Callbacks::CallbackChain#chain $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:522
                                                                    • Kernel#dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:500
                                                                      • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:500
                                                                        • Array#initialize_copy $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:500
                                                                    • Class#new $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:501
                                                                      • Thread::Mutex#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:501
                                                              • Article.block in set_callback $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:616
                                                                • ActiveSupport::Callbacks::CallbackChain#prepend $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:517
                                                                  • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:518
                                                                    • ActiveSupport::Callbacks::CallbackChain#block in prepend $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:518
                                                                      • ActiveSupport::Callbacks::CallbackChain#prepend_one $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:532
                                                                        • ActiveSupport::Callbacks::CallbackChain#remove_duplicates $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:538
                                                                          • Array#delete_if $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:540
                                                                        • Array#unshift $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:535
                                                                • Article.set_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:762
                                                                  • Symbol#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:763
                                                                  • Article.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                                    • Article.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                                      • Kernel#singleton_class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                                      • Module#class_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                                        • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.block (3 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                                          • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                                            • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                                            • Module#undef_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                                              • BasicObject#singleton_method_undefined $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                                          • Module#define_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                            • BasicObject#singleton_method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                      • Module#singleton_class? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:93
                                                  • Article.define_autosave_validation_callbacks $GemPath0/gems/activerecord-5.0.2/lib/active_record/autosave_association.rb:209
                                                    • Symbol#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/autosave_association.rb:210
                                                    • String#intern $GemPath0/gems/activerecord-5.0.2/lib/active_record/autosave_association.rb:210
                                                    • ActiveRecord::Reflection::HasManyReflection#validate? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:499
                                                      • NilClass#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:500
                                                      • ActiveRecord::Reflection::HasManyReflection#collection? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:634
                                                    • Module#method_defined? $GemPath0/gems/activerecord-5.0.2/lib/active_record/autosave_association.rb:211
                                                    • ActiveRecord::Reflection::HasManyReflection#collection? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:634
                                                    • Article.define_non_cyclic_method $GemPath0/gems/activerecord-5.0.2/lib/active_record/autosave_association.rb:150
                                                      • Module#method_defined? $GemPath0/gems/activerecord-5.0.2/lib/active_record/autosave_association.rb:151
                                                      • Module#define_method $GemPath0/gems/activerecord-5.0.2/lib/active_record/autosave_association.rb:152
                                                        • Module#method_added $GemPath0/gems/activerecord-5.0.2/lib/active_record/autosave_association.rb:152
                                                    • Article.validate $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations.rb:151
                                                      • Array#extract_options! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:22
                                                        • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                        • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                      • Enumerable#all? $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations.rb:154
                                                        • Array#each $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations.rb:154
                                                          • Article.block in validate $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations.rb:154
                                                            • Kernel#is_a? $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations.rb:154
                                                      • Hash#each_key $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations.rb:155
                                                      • Hash#key? $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations.rb:162
                                                      • Article.set_callback $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:609
                                                        • Article.normalize_callback_params $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:556
                                                          • Array#first $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:557
                                                          • Array#include? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:557
                                                          • Array#extract_options! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:22
                                                            • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                            • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                            • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                            • Hash#extractable_options? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:7
                                                              • Kernel#instance_of? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:8
                                                            • Array#pop $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:24
                                                          • Kernel#dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:560
                                                            • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:560
                                                              • Hash#initialize_copy $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:560
                                                        • Article.get_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:758
                                                          • Symbol#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:759
                                                          • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                            • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                        • Array#map $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:612
                                                          • Article.block in set_callback $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:612
                                                            • ActiveSupport::Callbacks::Callback.build $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:297
                                                              • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:298
                                                              • Class#new $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:305
                                                                • ActiveSupport::Callbacks::Callback#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:311
                                                                  • ActiveSupport::Callbacks::Callback#compute_identifier $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:410
                                                                    • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:412
                                                                    • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:412
                                                                  • Kernel#Array $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:317
                                                                    • NilClass#to_a $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:317
                                                                  • Kernel#Array $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:318
                                                                    • NilClass#to_a $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:318
                                                        • Article.__update_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:565
                                                          • ActiveSupport::DescendantsTracker.descendants $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:12
                                                            • ActiveSupport::DescendantsTracker.accumulate_descendants $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:39
                                                              • Kernel#hash $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:40
                                                          • Array#reverse_each $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:566
                                                            • Article.block in __update_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:566
                                                              • Article.get_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:758
                                                                • Symbol#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:759
                                                                • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                  • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                              • Kernel#dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:568
                                                                • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:568
                                                                  • ActiveSupport::Callbacks::CallbackChain#initialize_copy $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:498
                                                                    • ActiveSupport::Callbacks::CallbackChain#chain $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:522
                                                                    • Kernel#dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:500
                                                                      • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:500
                                                                        • Array#initialize_copy $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:500
                                                                    • Class#new $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:501
                                                                      • Thread::Mutex#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:501
                                                              • Article.block in set_callback $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:616
                                                                • ActiveSupport::Callbacks::CallbackChain#append $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:513
                                                                  • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:514
                                                                    • ActiveSupport::Callbacks::CallbackChain#block in append $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:514
                                                                      • ActiveSupport::Callbacks::CallbackChain#append_one $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:526
                                                                        • ActiveSupport::Callbacks::CallbackChain#remove_duplicates $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:538
                                                                          • Array#delete_if $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:540
                                                                        • Array#push $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:529
                                                                • Article.set_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:762
                                                                  • Symbol#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:763
                                                                  • Article.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                                    • Article.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                                      • Kernel#singleton_class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                                      • Module#class_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                                        • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.block (3 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                                          • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                                            • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                                            • Module#undef_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                                              • BasicObject#singleton_method_undefined $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                                          • Module#define_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                            • BasicObject#singleton_method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                      • Module#singleton_class? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:93
                                                    • Article.after_validation $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/callbacks.rb:95
                                                      • Array#extract_options! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:22
                                                        • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                        • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                      • Kernel#Array $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/callbacks.rb:98
                                                        • NilClass#to_a $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/callbacks.rb:98
                                                      • Article.set_callback $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:609
                                                        • Article.normalize_callback_params $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:556
                                                          • Array#first $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:557
                                                          • Array#include? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:557
                                                          • Array#shift $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:557
                                                          • Array#extract_options! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:22
                                                            • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                            • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                            • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                            • Hash#extractable_options? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:7
                                                              • Kernel#instance_of? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:8
                                                            • Array#pop $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:24
                                                          • Kernel#dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:560
                                                            • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:560
                                                              • Hash#initialize_copy $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:560
                                                        • Article.get_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:758
                                                          • Symbol#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:759
                                                          • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                            • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                        • Array#map $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:612
                                                          • Article.block in set_callback $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:612
                                                            • ActiveSupport::Callbacks::Callback.build $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:297
                                                              • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:298
                                                              • Class#new $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:305
                                                                • ActiveSupport::Callbacks::Callback#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:311
                                                                  • ActiveSupport::Callbacks::Callback#compute_identifier $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:410
                                                                    • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:412
                                                                    • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:412
                                                                  • Kernel#Array $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:317
                                                                  • Kernel#Array $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:318
                                                                    • NilClass#to_a $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:318
                                                        • Article.__update_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:565
                                                          • ActiveSupport::DescendantsTracker.descendants $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:12
                                                            • ActiveSupport::DescendantsTracker.accumulate_descendants $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:39
                                                              • Kernel#hash $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:40
                                                          • Array#reverse_each $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:566
                                                            • Article.block in __update_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:566
                                                              • Article.get_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:758
                                                                • Symbol#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:759
                                                                • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                  • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                              • Kernel#dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:568
                                                                • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:568
                                                                  • ActiveSupport::Callbacks::CallbackChain#initialize_copy $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:498
                                                                    • ActiveSupport::Callbacks::CallbackChain#chain $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:522
                                                                    • Kernel#dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:500
                                                                      • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:500
                                                                        • Array#initialize_copy $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:500
                                                                    • Class#new $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:501
                                                                      • Thread::Mutex#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:501
                                                              • Article.block in set_callback $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:616
                                                                • ActiveSupport::Callbacks::CallbackChain#prepend $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:517
                                                                  • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:518
                                                                    • ActiveSupport::Callbacks::CallbackChain#block in prepend $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:518
                                                                      • ActiveSupport::Callbacks::CallbackChain#prepend_one $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:532
                                                                        • ActiveSupport::Callbacks::CallbackChain#remove_duplicates $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:538
                                                                          • Array#delete_if $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:540
                                                                        • Array#unshift $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:535
                                                                • Article.set_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:762
                                                                  • Symbol#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:763
                                                                  • Article.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                                    • Article.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                                      • Kernel#singleton_class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                                      • Module#class_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                                        • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.block (3 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                                          • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                                            • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                                            • Module#undef_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                                              • BasicObject#singleton_method_undefined $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                                          • Module#define_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                            • BasicObject#singleton_method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                      • Module#singleton_class? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:93
                                        • Array#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:19
                                          • ActiveRecord::Associations::Builder::HasMany.block in define_callbacks $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:19
                                            • ActiveRecord::Associations::Builder::HasMany.define_callback $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:32
                                              • Symbol#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:33
                                              • Symbol#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:33
                                              • Module#method_defined? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:36
                                              • Article.class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:71
                                                • Array#extract_options! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:22
                                                  • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                  • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                • Hash#fetch $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:73
                                                • Hash#fetch $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:73
                                                • Hash#fetch $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:74
                                                • Hash#fetch $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:74
                                                • Hash#fetch $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:75
                                                • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:77
                                                  • Article.block in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:77
                                                    • Article.remove_possible_singleton_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:10
                                                      • Kernel#singleton_class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:11
                                                      • BasicObject#instance_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:11
                                                        • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.block in remove_possible_singleton_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:11
                                                          • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                            • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                            • Module#private_method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                    • Kernel#define_singleton_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:79
                                                      • BasicObject#singleton_method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:79
                                                    • Article.remove_possible_singleton_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:10
                                                      • Kernel#singleton_class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:11
                                                      • BasicObject#instance_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:11
                                                        • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.block in remove_possible_singleton_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:11
                                                          • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                            • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                            • Module#private_method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                    • Kernel#define_singleton_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:82
                                                      • BasicObject#singleton_method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:82
                                                    • Article.remove_possible_singleton_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:10
                                                      • Kernel#singleton_class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:11
                                                      • BasicObject#instance_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:11
                                                        • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.block in remove_possible_singleton_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:11
                                                          • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                            • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                            • Module#private_method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                    • Kernel#define_singleton_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                      • BasicObject#singleton_method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                    • Article.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                      • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                      • Module#private_method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                    • Module#define_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                      • Module#method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                    • Article.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                      • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                      • Module#private_method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                    • Module#define_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:119
                                                      • Module#method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:119
                                                    • Article.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                      • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                      • Module#private_method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                    • Module#attr_writer $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:124
                                                      • Module#method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:124
                                              • Symbol#to_sym $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:37
                                              • Kernel#Array $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:37
                                                • NilClass#to_a $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:37
                                              • Array#map $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:37
                                              • Article.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                • Article.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                  • Kernel#singleton_class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                  • Module#class_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                    • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.block (3 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                      • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                        • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                        • Module#undef_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                          • BasicObject#singleton_method_undefined $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                      • Module#define_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                        • BasicObject#singleton_method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                  • Module#singleton_class? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:93
                                          • ActiveRecord::Associations::Builder::HasMany.block in define_callbacks $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:19
                                            • ActiveRecord::Associations::Builder::HasMany.define_callback $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:32
                                              • Symbol#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:33
                                              • Symbol#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:33
                                              • Module#method_defined? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:36
                                              • Article.class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:71
                                                • Array#extract_options! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:22
                                                  • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                  • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                • Hash#fetch $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:73
                                                • Hash#fetch $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:73
                                                • Hash#fetch $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:74
                                                • Hash#fetch $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:74
                                                • Hash#fetch $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:75
                                                • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:77
                                                  • Article.block in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:77
                                                    • Article.remove_possible_singleton_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:10
                                                      • Kernel#singleton_class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:11
                                                      • BasicObject#instance_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:11
                                                        • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.block in remove_possible_singleton_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:11
                                                          • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                            • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                            • Module#private_method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                    • Kernel#define_singleton_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:79
                                                      • BasicObject#singleton_method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:79
                                                    • Article.remove_possible_singleton_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:10
                                                      • Kernel#singleton_class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:11
                                                      • BasicObject#instance_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:11
                                                        • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.block in remove_possible_singleton_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:11
                                                          • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                            • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                            • Module#private_method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                    • Kernel#define_singleton_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:82
                                                      • BasicObject#singleton_method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:82
                                                    • Article.remove_possible_singleton_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:10
                                                      • Kernel#singleton_class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:11
                                                      • BasicObject#instance_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:11
                                                        • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.block in remove_possible_singleton_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:11
                                                          • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                            • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                            • Module#private_method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                    • Kernel#define_singleton_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                      • BasicObject#singleton_method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                    • Article.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                      • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                      • Module#private_method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                    • Module#define_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                      • Module#method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                    • Article.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                      • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                      • Module#private_method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                    • Module#define_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:119
                                                      • Module#method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:119
                                                    • Article.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                      • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                      • Module#private_method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                    • Module#attr_writer $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:124
                                                      • Module#method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:124
                                              • Symbol#to_sym $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:37
                                              • Kernel#Array $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:37
                                                • NilClass#to_a $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:37
                                              • Array#map $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:37
                                              • Article.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                • Article.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                  • Kernel#singleton_class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                  • Module#class_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                    • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.block (3 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                      • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                        • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                        • Module#undef_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                          • BasicObject#singleton_method_undefined $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                      • Module#define_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                        • BasicObject#singleton_method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                  • Module#singleton_class? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:93
                                          • ActiveRecord::Associations::Builder::HasMany.block in define_callbacks $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:19
                                            • ActiveRecord::Associations::Builder::HasMany.define_callback $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:32
                                              • Symbol#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:33
                                              • Symbol#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:33
                                              • Module#method_defined? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:36
                                              • Article.class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:71
                                                • Array#extract_options! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:22
                                                  • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                  • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                • Hash#fetch $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:73
                                                • Hash#fetch $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:73
                                                • Hash#fetch $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:74
                                                • Hash#fetch $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:74
                                                • Hash#fetch $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:75
                                                • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:77
                                                  • Article.block in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:77
                                                    • Article.remove_possible_singleton_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:10
                                                      • Kernel#singleton_class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:11
                                                      • BasicObject#instance_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:11
                                                        • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.block in remove_possible_singleton_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:11
                                                          • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                            • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                            • Module#private_method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                    • Kernel#define_singleton_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:79
                                                      • BasicObject#singleton_method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:79
                                                    • Article.remove_possible_singleton_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:10
                                                      • Kernel#singleton_class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:11
                                                      • BasicObject#instance_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:11
                                                        • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.block in remove_possible_singleton_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:11
                                                          • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                            • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                            • Module#private_method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                    • Kernel#define_singleton_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:82
                                                      • BasicObject#singleton_method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:82
                                                    • Article.remove_possible_singleton_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:10
                                                      • Kernel#singleton_class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:11
                                                      • BasicObject#instance_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:11
                                                        • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.block in remove_possible_singleton_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:11
                                                          • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                            • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                            • Module#private_method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                    • Kernel#define_singleton_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                      • BasicObject#singleton_method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                    • Article.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                      • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                      • Module#private_method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                    • Module#define_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                      • Module#method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                    • Article.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                      • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                      • Module#private_method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                    • Module#define_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:119
                                                      • Module#method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:119
                                                    • Article.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                      • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                      • Module#private_method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                    • Module#attr_writer $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:124
                                                      • Module#method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:124
                                              • Symbol#to_sym $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:37
                                              • Kernel#Array $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:37
                                                • NilClass#to_a $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:37
                                              • Array#map $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:37
                                              • Article.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                • Article.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                  • Kernel#singleton_class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                  • Module#class_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                    • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.block (3 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                      • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                        • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                        • Module#undef_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                          • BasicObject#singleton_method_undefined $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                      • Module#define_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                        • BasicObject#singleton_method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                  • Module#singleton_class? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:93
                                          • ActiveRecord::Associations::Builder::HasMany.block in define_callbacks $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:19
                                            • ActiveRecord::Associations::Builder::HasMany.define_callback $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:32
                                              • Symbol#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:33
                                              • Symbol#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:33
                                              • Module#method_defined? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:36
                                              • Article.class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:71
                                                • Array#extract_options! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:22
                                                  • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                  • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                • Hash#fetch $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:73
                                                • Hash#fetch $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:73
                                                • Hash#fetch $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:74
                                                • Hash#fetch $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:74
                                                • Hash#fetch $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:75
                                                • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:77
                                                  • Article.block in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:77
                                                    • Article.remove_possible_singleton_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:10
                                                      • Kernel#singleton_class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:11
                                                      • BasicObject#instance_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:11
                                                        • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.block in remove_possible_singleton_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:11
                                                          • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                            • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                            • Module#private_method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                    • Kernel#define_singleton_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:79
                                                      • BasicObject#singleton_method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:79
                                                    • Article.remove_possible_singleton_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:10
                                                      • Kernel#singleton_class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:11
                                                      • BasicObject#instance_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:11
                                                        • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.block in remove_possible_singleton_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:11
                                                          • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                            • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                            • Module#private_method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                    • Kernel#define_singleton_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:82
                                                      • BasicObject#singleton_method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:82
                                                    • Article.remove_possible_singleton_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:10
                                                      • Kernel#singleton_class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:11
                                                      • BasicObject#instance_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:11
                                                        • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.block in remove_possible_singleton_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:11
                                                          • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                            • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                            • Module#private_method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                    • Kernel#define_singleton_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                      • BasicObject#singleton_method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                    • Article.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                      • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                      • Module#private_method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                    • Module#define_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                      • Module#method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                    • Article.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                      • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                      • Module#private_method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                    • Module#define_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:119
                                                      • Module#method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:119
                                                    • Article.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                      • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                      • Module#private_method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                    • Module#attr_writer $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:124
                                                      • Module#method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:124
                                              • Symbol#to_sym $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:37
                                              • Kernel#Array $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:37
                                                • NilClass#to_a $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:37
                                              • Array#map $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/collection_association.rb:37
                                              • Article.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                • Article.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                  • Kernel#singleton_class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                  • Module#class_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                    • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.block (3 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                      • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                        • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                        • Module#undef_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                          • BasicObject#singleton_method_undefined $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                      • Module#define_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                        • BasicObject#singleton_method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                  • Module#singleton_class? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:93
                                      • ActiveRecord::Associations::Builder::HasMany.define_validations $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/builder/association.rb:124
                                    • ActiveRecord::Reflection.add_reflection $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:34
                                      • Article.clear_reflections_cache $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:122
                                      • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                        • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                      • Symbol#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:36
                                      • Hash#merge $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:36
                                        • Kernel#initialize_dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:36
                                          • Hash#initialize_copy $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:36
                                      • Article.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                        • Article.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                          • Kernel#singleton_class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                          • Module#class_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                            • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.block (3 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                              • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                • Module#undef_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                  • BasicObject#singleton_method_undefined $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                              • Module#define_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                • BasicObject#singleton_method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                          • Module#singleton_class? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:93
                                  • Article.validates $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/validates.rb:104
                                    • Array#extract_options! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:22
                                      • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                      • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                      • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                      • Hash#extractable_options? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:7
                                        • Kernel#instance_of? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:8
                                      • Array#pop $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:24
                                    • Kernel#dup $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/validates.rb:105
                                      • Kernel#initialize_dup $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/validates.rb:105
                                        • Hash#initialize_copy $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/validates.rb:105
                                    • Article._validates_default_keys $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/validates.rb:155
                                    • Hash#slice! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/slice.rb:31
                                      • Kernel#respond_to? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/slice.rb:32
                                      • Hash#keys $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/slice.rb:33
                                      • Array#- $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/slice.rb:33
                                      • Hash#slice $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/slice.rb:21
                                        • Kernel#respond_to? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/slice.rb:22
                                        • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/slice.rb:23
                                        • Class#new $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/slice.rb:23
                                          • Hash#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/slice.rb:23
                                        • Enumerable#each_with_object $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/slice.rb:23
                                          • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/slice.rb:23
                                            • Hash#block in slice $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/slice.rb:23
                                              • Hash#has_key? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/slice.rb:23
                                            • Hash#block in slice $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/slice.rb:23
                                              • Hash#has_key? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/slice.rb:23
                                      • Hash#slice $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/slice.rb:21
                                        • Kernel#respond_to? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/slice.rb:22
                                        • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/slice.rb:23
                                        • Class#new $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/slice.rb:23
                                          • Hash#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/slice.rb:23
                                        • Enumerable#each_with_object $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/slice.rb:23
                                          • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/slice.rb:23
                                            • Hash#block in slice $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/slice.rb:23
                                              • Hash#has_key? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/slice.rb:23
                                            • Hash#block in slice $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/slice.rb:23
                                              • Hash#has_key? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/slice.rb:23
                                            • Hash#block in slice $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/slice.rb:23
                                              • Hash#has_key? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/slice.rb:23
                                            • Hash#block in slice $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/slice.rb:23
                                              • Hash#has_key? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/slice.rb:23
                                            • Hash#block in slice $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/slice.rb:23
                                              • Hash#has_key? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/slice.rb:23
                                            • Hash#block in slice $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/slice.rb:23
                                              • Hash#has_key? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/slice.rb:23
                                      • Hash#default $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/slice.rb:35
                                      • Hash#default= $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/slice.rb:35
                                      • Hash#default_proc $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/slice.rb:36
                                      • Hash#replace $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/slice.rb:37
                                    • Hash#each $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/validates.rb:113
                                      • Article.block in validates $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/validates.rb:113
                                        • Symbol#to_s $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/validates.rb:115
                                        • String#camelize $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/string/inflections.rb:89
                                          • ActiveSupport::Inflector.camelize $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:66
                                            • String#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:67
                                            • String#sub $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:69
                                              • ActiveSupport::Inflector.block in camelize $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:69
                                                • ActiveSupport::Inflector.inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:234
                                                  • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:235
                                                  • ActiveSupport::Inflector::Inflections.instance $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:61
                                                    • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:92
                                                      • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:19
                                                • String#capitalize $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:69
                                            • String#gsub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:73
                                            • String#gsub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:74
                                        • String#include? $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/validates.rb:118
                                        • Module#const_get $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/validates.rb:118
                                        • Article._parse_validates_options $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/validates.rb:159
                                          • Module#=== $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/validates.rb:161
                                        • Hash#merge $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/validates.rb:123
                                          • Kernel#initialize_dup $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/validates.rb:123
                                            • Hash#initialize_copy $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/validates.rb:123
                                        • Article.validates_with $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/with.rb:77
                                          • Array#extract_options! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:22
                                            • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                            • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                            • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                            • Hash#extractable_options? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:7
                                              • Kernel#instance_of? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:8
                                            • Array#pop $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:24
                                          • Array#each $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/with.rb:81
                                            • Article.block in validates_with $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/with.rb:81
                                              • Class#new $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/with.rb:82
                                                • ActiveRecord::Validations::PresenceValidator#initialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/validator.rb:137
                                                  • Hash#delete $GemPath0/gems/activemodel-5.0.2/lib/active_model/validator.rb:138
                                                  • Kernel#Array $GemPath0/gems/activemodel-5.0.2/lib/active_model/validator.rb:138
                                                  • ActiveRecord::Validations::PresenceValidator#initialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/validator.rb:107
                                                    • Hash#except $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/except.rb:10
                                                      • Kernel#dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/except.rb:11
                                                        • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/except.rb:11
                                                          • Hash#initialize_copy $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/except.rb:11
                                                      • Hash#except! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/except.rb:18
                                                        • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/except.rb:19
                                                          • Hash#block in except! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/except.rb:19
                                                            • Hash#delete $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/except.rb:19
                                                    • Kernel#freeze $GemPath0/gems/activemodel-5.0.2/lib/active_model/validator.rb:108
                                                  • ActiveRecord::Validations::PresenceValidator#check_validity! $GemPath0/gems/activemodel-5.0.2/lib/active_model/validator.rb:164
                                              • Kernel#respond_to? $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/with.rb:84
                                              • Array#each $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/with.rb:85
                                                • Article.block (2 levels) in validates_with $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/with.rb:85
                                                  • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                    • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                  • Symbol#to_sym $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/with.rb:86
                                                  • ActiveRecord::Base.block (2 levels) in <module:Validations> $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations.rb:54
                                              • Article.validate $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations.rb:151
                                                • Array#extract_options! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:22
                                                  • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                  • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                  • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                  • Hash#extractable_options? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:7
                                                    • Kernel#instance_of? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:8
                                                  • Array#pop $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:24
                                                • Enumerable#all? $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations.rb:154
                                                  • Array#each $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations.rb:154
                                                    • Article.block in validate $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations.rb:154
                                                      • Kernel#is_a? $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations.rb:154
                                                • Hash#key? $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations.rb:162
                                                • Article.set_callback $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:609
                                                  • Article.normalize_callback_params $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:556
                                                    • Array#first $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:557
                                                    • Array#include? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:557
                                                    • Array#extract_options! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:22
                                                      • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                      • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                      • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                      • Hash#extractable_options? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:7
                                                        • Kernel#instance_of? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:8
                                                      • Array#pop $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:24
                                                    • Kernel#dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:560
                                                      • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:560
                                                        • Hash#initialize_copy $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:560
                                                  • Article.get_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:758
                                                    • Symbol#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:759
                                                    • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                      • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                  • Array#map $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:612
                                                    • Article.block in set_callback $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:612
                                                      • ActiveSupport::Callbacks::Callback.build $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:297
                                                        • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:298
                                                        • Class#new $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:305
                                                          • ActiveSupport::Callbacks::Callback#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:311
                                                            • ActiveSupport::Callbacks::Callback#compute_identifier $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:410
                                                              • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:412
                                                              • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:412
                                                            • Kernel#Array $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:317
                                                              • NilClass#to_a $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:317
                                                            • Kernel#Array $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:318
                                                              • NilClass#to_a $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:318
                                                  • Article.__update_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:565
                                                    • ActiveSupport::DescendantsTracker.descendants $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:12
                                                      • ActiveSupport::DescendantsTracker.accumulate_descendants $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:39
                                                        • Kernel#hash $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:40
                                                    • Array#reverse_each $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:566
                                                      • Article.block in __update_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:566
                                                        • Article.get_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:758
                                                          • Symbol#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:759
                                                          • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                            • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                        • Kernel#dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:568
                                                          • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:568
                                                            • ActiveSupport::Callbacks::CallbackChain#initialize_copy $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:498
                                                              • ActiveSupport::Callbacks::CallbackChain#chain $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:522
                                                              • Kernel#dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:500
                                                                • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:500
                                                                  • Array#initialize_copy $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:500
                                                              • Class#new $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:501
                                                                • Thread::Mutex#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:501
                                                        • Article.block in set_callback $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:616
                                                          • ActiveSupport::Callbacks::CallbackChain#append $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:513
                                                            • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:514
                                                              • ActiveSupport::Callbacks::CallbackChain#block in append $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:514
                                                                • ActiveSupport::Callbacks::CallbackChain#append_one $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:526
                                                                  • ActiveSupport::Callbacks::CallbackChain#remove_duplicates $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:538
                                                                    • Array#delete_if $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:540
                                                                      • ActiveSupport::Callbacks::CallbackChain#block in remove_duplicates $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:540
                                                                        • ActiveSupport::Callbacks::Callback#duplicates? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:340
                                                                          • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:342
                                                                          • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:342
                                                                  • Array#push $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:529
                                                          • Article.set_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:762
                                                            • Symbol#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:763
                                                            • Article.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                              • Article.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                                • Kernel#singleton_class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                                • Module#class_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                                  • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.block (3 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                                    • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                                      • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                                      • Module#undef_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                                        • BasicObject#singleton_method_undefined $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                                    • Module#define_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                      • BasicObject#singleton_method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                • Module#singleton_class? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:93
                                      • Article.block in validates $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/validates.rb:113
                                        • Symbol#to_s $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/validates.rb:115
                                        • String#camelize $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/string/inflections.rb:89
                                          • ActiveSupport::Inflector.camelize $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:66
                                            • String#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:67
                                            • String#sub $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:69
                                              • ActiveSupport::Inflector.block in camelize $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:69
                                                • ActiveSupport::Inflector.inflections $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:234
                                                  • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:235
                                                  • ActiveSupport::Inflector::Inflections.instance $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/inflections.rb:61
                                                    • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:92
                                                      • Concurrent::Map#[] $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:19
                                                • String#capitalize $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:69
                                            • String#gsub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:73
                                            • String#gsub! $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:74
                                        • String#include? $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/validates.rb:118
                                        • Module#const_get $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/validates.rb:118
                                        • Article._parse_validates_options $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/validates.rb:159
                                          • Module#=== $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/validates.rb:161
                                          • Module#=== $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/validates.rb:163
                                        • Hash#merge $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/validates.rb:123
                                          • Kernel#initialize_dup $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/validates.rb:123
                                            • Hash#initialize_copy $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/validates.rb:123
                                        • Article.validates_with $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/with.rb:77
                                          • Array#extract_options! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:22
                                            • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                            • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                            • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                            • Hash#extractable_options? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:7
                                              • Kernel#instance_of? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:8
                                            • Array#pop $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:24
                                          • Array#each $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/with.rb:81
                                            • Article.block in validates_with $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/with.rb:81
                                              • Class#new $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/with.rb:82
                                                • ActiveRecord::Validations::LengthValidator#initialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/length.rb:11
                                                  • Hash#delete $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/length.rb:12
                                                  • Hash#delete $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/length.rb:12
                                                  • ActiveRecord::Validations::LengthValidator#initialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/validator.rb:137
                                                    • Hash#delete $GemPath0/gems/activemodel-5.0.2/lib/active_model/validator.rb:138
                                                    • Kernel#Array $GemPath0/gems/activemodel-5.0.2/lib/active_model/validator.rb:138
                                                    • ActiveRecord::Validations::LengthValidator#initialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/validator.rb:107
                                                      • Hash#except $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/except.rb:10
                                                        • Kernel#dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/except.rb:11
                                                          • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/except.rb:11
                                                            • Hash#initialize_copy $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/except.rb:11
                                                        • Hash#except! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/except.rb:18
                                                          • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/except.rb:19
                                                            • Hash#block in except! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/except.rb:19
                                                              • Hash#delete $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/except.rb:19
                                                      • Kernel#freeze $GemPath0/gems/activemodel-5.0.2/lib/active_model/validator.rb:108
                                                    • ActiveRecord::Validations::LengthValidator#check_validity! $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/length.rb:45
                                                      • Hash#keys $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/length.rb:46
                                                      • Hash#keys $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/length.rb:46
                                                      • Array#& $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/length.rb:46
                                                      • Array#each $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/length.rb:52
                                                        • ActiveRecord::Validations::LengthValidator#block in check_validity! $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/length.rb:52
                                                          • Kernel#is_a? $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/length.rb:55
                                              • Kernel#respond_to? $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/with.rb:84
                                              • Array#each $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/with.rb:85
                                                • Article.block (2 levels) in validates_with $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/with.rb:85
                                                  • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                    • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                  • Symbol#to_sym $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations/with.rb:86
                                              • Article.validate $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations.rb:151
                                                • Array#extract_options! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:22
                                                  • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                  • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                  • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                  • Hash#extractable_options? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:7
                                                    • Kernel#instance_of? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:8
                                                  • Array#pop $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:24
                                                • Enumerable#all? $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations.rb:154
                                                  • Array#each $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations.rb:154
                                                    • Article.block in validate $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations.rb:154
                                                      • Kernel#is_a? $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations.rb:154
                                                • Hash#key? $GemPath0/gems/activemodel-5.0.2/lib/active_model/validations.rb:162
                                                • Article.set_callback $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:609
                                                  • Article.normalize_callback_params $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:556
                                                    • Array#first $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:557
                                                    • Array#include? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:557
                                                    • Array#extract_options! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:22
                                                      • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                      • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                      • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:23
                                                      • Hash#extractable_options? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:7
                                                        • Kernel#instance_of? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:8
                                                      • Array#pop $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/extract_options.rb:24
                                                    • Kernel#dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:560
                                                      • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:560
                                                        • Hash#initialize_copy $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:560
                                                  • Article.get_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:758
                                                    • Symbol#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:759
                                                    • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                      • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                  • Array#map $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:612
                                                    • Article.block in set_callback $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:612
                                                      • ActiveSupport::Callbacks::Callback.build $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:297
                                                        • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:298
                                                        • Class#new $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:305
                                                          • ActiveSupport::Callbacks::Callback#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:311
                                                            • ActiveSupport::Callbacks::Callback#compute_identifier $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:410
                                                              • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:412
                                                              • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:412
                                                            • Kernel#Array $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:317
                                                              • NilClass#to_a $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:317
                                                            • Kernel#Array $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:318
                                                              • NilClass#to_a $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:318
                                                  • Article.__update_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:565
                                                    • ActiveSupport::DescendantsTracker.descendants $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:12
                                                      • ActiveSupport::DescendantsTracker.accumulate_descendants $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:39
                                                        • Kernel#hash $GemPath0/gems/activesupport-5.0.2/lib/active_support/descendants_tracker.rb:40
                                                    • Array#reverse_each $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:566
                                                      • Article.block in __update_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:566
                                                        • Article.get_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:758
                                                          • Symbol#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:759
                                                          • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                            • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                        • Kernel#dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:568
                                                          • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:568
                                                            • ActiveSupport::Callbacks::CallbackChain#initialize_copy $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:498
                                                              • ActiveSupport::Callbacks::CallbackChain#chain $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:522
                                                              • Kernel#dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:500
                                                                • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:500
                                                                  • Array#initialize_copy $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:500
                                                              • Class#new $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:501
                                                                • Thread::Mutex#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:501
                                                        • Article.block in set_callback $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:616
                                                          • ActiveSupport::Callbacks::CallbackChain#append $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:513
                                                            • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:514
                                                              • ActiveSupport::Callbacks::CallbackChain#block in append $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:514
                                                                • ActiveSupport::Callbacks::CallbackChain#append_one $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:526
                                                                  • ActiveSupport::Callbacks::CallbackChain#remove_duplicates $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:538
                                                                    • Array#delete_if $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:540
                                                                      • ActiveSupport::Callbacks::CallbackChain#block in remove_duplicates $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:540
                                                                        • ActiveSupport::Callbacks::Callback#duplicates? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:340
                                                                          • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:342
                                                                          • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:342
                                                                      • ActiveSupport::Callbacks::CallbackChain#block in remove_duplicates $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:540
                                                                        • ActiveSupport::Callbacks::Callback#duplicates? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:340
                                                                          • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:342
                                                                          • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:342
                                                                  • Array#push $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:529
                                                          • Article.set_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:762
                                                            • Symbol#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:763
                                                            • Article.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                              • Article.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                                                                • Kernel#singleton_class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                                • Module#class_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                                  • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.block (3 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                                                                    • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                                                                      • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                                                                      • Module#undef_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                                        • BasicObject#singleton_method_undefined $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                                                                    • Module#define_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                      • BasicObject#singleton_method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                • Module#singleton_class? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:93
                            • ActiveSupport::Dependencies.constant_watch_stack $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                            • ActiveSupport::Dependencies::WatchStack#new_constants $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:124
                              • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:128
                              • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:128
                                • ActiveSupport::Dependencies::WatchStack#block in new_constants $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:128
                                  • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:131
                                  • ActiveSupport::Dependencies.qualified_const_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:396
                                    • Module#const_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:397
                                  • ActiveSupport::Inflector.constantize $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:257
                                    • String#split $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:258
                                    • Enumerable#inject $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:266
                                      • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:266
                                        • ActiveSupport::Inflector.block in constantize $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:266
                                          • Module#const_get $GemPath0/gems/activesupport-5.0.2/lib/active_support/inflector/methods.rb:268
                                  • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:134
                                  • Module#constants $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:137
                                  • Array#- $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:137
                                  • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:144
                                    • ActiveSupport::Dependencies::WatchStack#block (2 levels) in new_constants $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:144
                                      • Array#concat $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:145
                                  • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:149
                                    • ActiveSupport::Dependencies::WatchStack#block (2 levels) in new_constants $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:149
                                      • Array#- $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:150
                                      • Array#join $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:150
                                        • Symbol#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:150
                              • Array#pop $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:156
                              • ActiveSupport::Dependencies::WatchStack#pop_modules $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:173
                                • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:174
                                  • ActiveSupport::Dependencies::WatchStack#block in pop_modules $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:174
                                    • Array#pop $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:174
                          • ActiveSupport::Dependencies.load_once_path? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:444
                            • ActiveSupport::Dependencies.autoload_once_paths $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                            • Array#any? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:447
                          • ActiveSupport::Dependencies.autoloaded_constants $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                          • Array#concat $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:480
                          • ActiveSupport::Dependencies.autoloaded_constants $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                          • Array#uniq! $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:481
                        • ActiveSupport::Dependencies.loading $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                        • Array#pop $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:386
                        • ActiveSupport::Dependencies.history $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                        • Set#add /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/set.rb:330
                  • ActiveSupport::Concurrency::ShareLock#stop_exclusive $GemPath0/gems/activesupport-5.0.2/lib/active_support/concurrency/share_lock.rb:95
                    • ActiveSupport::Concurrency::ShareLock#mon_synchronize /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:211
                      • ActiveSupport::Concurrency::ShareLock#mon_enter /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:185
                        • #<Class:Thread>#current /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:186
                        • Thread::Mutex#lock /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:187
                        • #<Class:Thread>#current /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:188
                      • ActiveSupport::Concurrency::ShareLock#block in stop_exclusive $GemPath0/gems/activesupport-5.0.2/lib/active_support/concurrency/share_lock.rb:96
                        • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/concurrency/share_lock.rb:97
                        • ActiveSupport::Concurrency::ShareLock#eligible_waiters? $GemPath0/gems/activesupport-5.0.2/lib/active_support/concurrency/share_lock.rb:214
                          • Hash#any? $GemPath0/gems/activesupport-5.0.2/lib/active_support/concurrency/share_lock.rb:215
                        • MonitorMixin::ConditionVariable#broadcast /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:147
                          • ActiveSupport::Concurrency::ShareLock#mon_check_owner /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:247
                            • #<Class:Thread>#current /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:248
                          • Thread::ConditionVariable#broadcast /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:149
                      • ActiveSupport::Concurrency::ShareLock#mon_exit /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:197
                        • ActiveSupport::Concurrency::ShareLock#mon_check_owner /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:247
                          • #<Class:Thread>#current /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:248
                        • Thread::Mutex#unlock /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/monitor.rb:202
          • Module#const_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:512
          • Module#const_get $GemPath0/gems/activesupport-5.0.2/lib/active_support/dependencies.rb:513
  • Article.page $GemPath0/gems/kaminari-activerecord-1.0.1/lib/kaminari/activerecord/active_record_model_extension.rb:14
    • Article.max_per_page $GemPath0/gems/kaminari-core-1.0.1/lib/kaminari/models/configuration_methods.rb:30
      • Kaminari.config $GemPath0/gems/activesupport-5.0.2/lib/active_support/configurable.rb:27
      • #<Class:0x007f4c6439d4a8>#method_missing $GemPath0/gems/activesupport-5.0.2/lib/active_support/ordered_options.rb:37
        • Symbol#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/ordered_options.rb:38
        • String#chomp! $GemPath0/gems/activesupport-5.0.2/lib/active_support/ordered_options.rb:39
        • String#chomp! $GemPath0/gems/activesupport-5.0.2/lib/active_support/ordered_options.rb:42
        • #<Class:0x007f4c6439d4a8>#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/ordered_options.rb:33
          • String#to_sym $GemPath0/gems/activesupport-5.0.2/lib/active_support/ordered_options.rb:34
          • Hash#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/ordered_options.rb:34
    • Article.default_per_page $GemPath0/gems/kaminari-core-1.0.1/lib/kaminari/models/configuration_methods.rb:16
      • Kaminari.config $GemPath0/gems/activesupport-5.0.2/lib/active_support/configurable.rb:27
      • #<Class:0x007f4c6439d4a8>#method_missing $GemPath0/gems/activesupport-5.0.2/lib/active_support/ordered_options.rb:37
        • Symbol#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/ordered_options.rb:38
        • String#chomp! $GemPath0/gems/activesupport-5.0.2/lib/active_support/ordered_options.rb:39
        • String#chomp! $GemPath0/gems/activesupport-5.0.2/lib/active_support/ordered_options.rb:42
        • #<Class:0x007f4c6439d4a8>#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/ordered_options.rb:33
          • String#to_sym $GemPath0/gems/activesupport-5.0.2/lib/active_support/ordered_options.rb:34
          • Hash#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/ordered_options.rb:34
    • Article.limit $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:10
      • Article.all $GemPath0/gems/activerecord-5.0.2/lib/active_record/scoping/named.rb:24
        • Article.current_scope $GemPath0/gems/activerecord-5.0.2/lib/active_record/scoping.rb:13
          • ActiveRecord::Scoping::ScopeRegistry.value_for $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:53
            • ActiveRecord::Scoping::ScopeRegistry.instance $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:44
              • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
              • Thread#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:45
            • ActiveRecord::Scoping::ScopeRegistry#value_for $GemPath0/gems/activerecord-5.0.2/lib/active_record/scoping.rb:78
              • ActiveRecord::Scoping::ScopeRegistry#raise_invalid_scope_type! $GemPath0/gems/activerecord-5.0.2/lib/active_record/scoping.rb:97
                • Array#include? $GemPath0/gems/activerecord-5.0.2/lib/active_record/scoping.rb:98
              • Article.base_class $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:94
                • Module#< $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:95
                • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:99
                • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:99
                • ApplicationRecord.abstract_class? $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:124
              • Module#<= $GemPath0/gems/activerecord-5.0.2/lib/active_record/scoping.rb:82
              • Module#name $GemPath0/gems/activerecord-5.0.2/lib/active_record/scoping.rb:83
              • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/scoping.rb:85
              • Module#<= $GemPath0/gems/activerecord-5.0.2/lib/active_record/scoping.rb:82
        • Article.default_scoped $GemPath0/gems/activerecord-5.0.2/lib/active_record/scoping/named.rb:32
          • Article.build_default_scope $GemPath0/gems/activerecord-5.0.2/lib/active_record/scoping/default.rb:104
            • Article.abstract_class? $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:124
            • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
              • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
            • NilClass#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/scoping/default.rb:107
            • Kernel#method $GemPath0/gems/activerecord-5.0.2/lib/active_record/scoping/default.rb:108
            • Method#owner $GemPath0/gems/activerecord-5.0.2/lib/active_record/scoping/default.rb:108
            • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/scoping/default.rb:108
            • Article.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
              • Article.block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:87
                • Kernel#singleton_class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                • Module#class_eval $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                  • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.block (3 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:88
                    • #<Class:Article(id: integer, title: string, text: text, created_at: datetime, updated_at: datetime)>.remove_possible_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:3
                      • Module#method_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:4
                      • Module#undef_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                        • BasicObject#singleton_method_undefined $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/remove_method.rb:5
                    • Module#define_method $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                      • BasicObject#singleton_method_added $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                • Module#singleton_class? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:93
            • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
              • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
            • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
              • Article.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
            • Array#any? $GemPath0/gems/activerecord-5.0.2/lib/active_record/scoping/default.rb:114
          • Article.relation $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:289
            • Article.arel_table $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:253
              • Article.table_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:213
              • Article.type_caster $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:276
                • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:277
                  • ActiveRecord::TypeCaster::Map#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/type_caster/map.rb:4
              • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:254
                • Arel::Table#initialize $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:14
                  • String#to_s $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:15
                  • NilClass#to_s $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:22
            • Article.predicate_builder $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:272
              • Article.table_metadata $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:299
                • Article.arel_table $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:253
                • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:300
                  • ActiveRecord::TableMetadata#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/table_metadata.rb:6
              • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:273
                • ActiveRecord::PredicateBuilder#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:14
                  • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:18
                    • ActiveRecord::PredicateBuilder::BasicObjectHandler#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder/basic_object_handler.rb:4
                  • ActiveRecord::PredicateBuilder#register_handler $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:71
                    • Array#unshift $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:72
                  • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:19
                    • ActiveRecord::PredicateBuilder::ClassHandler#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder/class_handler.rb:4
                  • ActiveRecord::PredicateBuilder#register_handler $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:71
                    • Array#unshift $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:72
                  • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:20
                    • ActiveRecord::PredicateBuilder::BaseHandler#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder/base_handler.rb:4
                  • ActiveRecord::PredicateBuilder#register_handler $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:71
                    • Array#unshift $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:72
                  • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:21
                    • ActiveRecord::PredicateBuilder::RangeHandler#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder/range_handler.rb:6
                  • ActiveRecord::PredicateBuilder#register_handler $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:71
                    • Array#unshift $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:72
                  • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:22
                    • ActiveRecord::PredicateBuilder::RangeHandler#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder/range_handler.rb:6
                  • ActiveRecord::PredicateBuilder#register_handler $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:71
                    • Array#unshift $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:72
                  • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:23
                    • BasicObject#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:23
                  • ActiveRecord::PredicateBuilder#register_handler $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:71
                    • Array#unshift $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:72
                  • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:24
                    • ActiveRecord::PredicateBuilder::ArrayHandler#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder/array_handler.rb:4
                  • ActiveRecord::PredicateBuilder#register_handler $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:71
                    • Array#unshift $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:72
                  • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:25
                    • ActiveRecord::PredicateBuilder::AssociationQueryHandler#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder/association_query_handler.rb:14
                  • ActiveRecord::PredicateBuilder#register_handler $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:71
                    • Array#unshift $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:72
                  • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:26
                    • ActiveRecord::PredicateBuilder::PolymorphicArrayHandler#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder/polymorphic_array_handler.rb:4
                  • ActiveRecord::PredicateBuilder#register_handler $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:71
                    • Array#unshift $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:72
            • ActiveRecord::Relation.create $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:100
              • ActiveRecord::Relation.relation_class_for $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:106
                • Article.relation_delegate_class $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:6
                  • Kernel#hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:7
              • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:101
                • Article::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:24
            • Article.finder_needs_type_condition? $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:81
              • Article.descends_from_active_record? $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:71
                • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:74
                • ApplicationRecord.abstract_class? $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:124
                • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:75
                • ApplicationRecord.descends_from_active_record? $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:71
                  • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:74
                  • ActiveRecord::Base.abstract_class? $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:124
                  • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:77
      • Article::ActiveRecord_Relation#limit $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:705
        • Article::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/spawn_methods.rb:9
          • Kernel#clone $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/spawn_methods.rb:10
            • Kernel#initialize_clone $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/spawn_methods.rb:10
              • Article::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:33
                • #<Class:Hash>#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:36
                • Article::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:594
                  • Kernel#freeze $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:597
        • Article::ActiveRecord_Relation#limit! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:709
          • Article::ActiveRecord_Relation#string_containing_comma? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1238
            • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1239
          • Article::ActiveRecord_Relation#limit_value= $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:81
            • Article::ActiveRecord_Relation#assert_mutability! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:954
    • Integer#to_i $GemPath0/gems/kaminari-activerecord-1.0.1/lib/kaminari/activerecord/active_record_model_extension.rb:16
    • Article::ActiveRecord_Relation#offset $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:728
      • Article::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/spawn_methods.rb:9
        • Kernel#clone $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/spawn_methods.rb:10
          • Kernel#initialize_clone $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/spawn_methods.rb:10
            • Article::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:33
              • #<Class:Hash>#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:36
              • Article::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:594
                • Kernel#freeze $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:597
      • Article::ActiveRecord_Relation#offset! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:732
        • Article::ActiveRecord_Relation#offset_value= $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:81
          • Article::ActiveRecord_Relation#assert_mutability! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:954
    • Article::ActiveRecord_Relation#extending $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:915
      • Array#any? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:916
      • Article::ActiveRecord_Relation#spawn $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/spawn_methods.rb:9
        • Kernel#clone $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/spawn_methods.rb:10
          • Kernel#initialize_clone $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/spawn_methods.rb:10
            • Article::ActiveRecord_Relation#initialize_copy $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:33
              • #<Class:Hash>#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:36
              • Article::ActiveRecord_Relation#reset $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:594
                • Kernel#freeze $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:597
      • Article::ActiveRecord_Relation#extending! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:923
        • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:924
          • Module#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:924
            • #<Module:0x007f4c30f48818>.block in page $GemPath0/gems/kaminari-activerecord-1.0.1/lib/kaminari/activerecord/active_record_model_extension.rb:16
              • Module#include(Kaminari::ActiveRecordRelationMethods) $GemPath0/gems/kaminari-activerecord-1.0.1/lib/kaminari/activerecord/active_record_model_extension.rb:17
                • Module#append_features(Kaminari::ActiveRecordRelationMethods) $GemPath0/gems/kaminari-activerecord-1.0.1/lib/kaminari/activerecord/active_record_model_extension.rb:17
                • Module#included $GemPath0/gems/kaminari-activerecord-1.0.1/lib/kaminari/activerecord/active_record_model_extension.rb:17
              • Module#include(Kaminari::PageScopeMethods) $GemPath0/gems/kaminari-activerecord-1.0.1/lib/kaminari/activerecord/active_record_model_extension.rb:18
                • Module#append_features(Kaminari::PageScopeMethods) $GemPath0/gems/kaminari-activerecord-1.0.1/lib/kaminari/activerecord/active_record_model_extension.rb:18
                • Module#included $GemPath0/gems/kaminari-activerecord-1.0.1/lib/kaminari/activerecord/active_record_model_extension.rb:18
        • Array#flatten! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:925
        • Article::ActiveRecord_Relation#extending_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:60
        • Article::ActiveRecord_Relation#extending_values= $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:64
          • Article::ActiveRecord_Relation#assert_mutability! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:954
        • Article::ActiveRecord_Relation#extending_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:60
        • Array#any? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:928
        • Article::ActiveRecord_Relation#extending_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:60
        • Kernel#extend(#<Module:0x007f4c30f48818>) $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:928
          • Module#extend_object $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:928
          • Module#extended $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:928