• Object#block in irb_binding (irb):34
  • Article.includes $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
          • Kernel#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/scoping/default.rb:107
          • 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.predicate_builder $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:272
          • 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::ActiveRecord_Relation#includes $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:166
      • Article::ActiveRecord_Relation#check_if_method_has_arguments! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1212
        • Array#blank? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1213
      • 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#includes! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:171
        • Array#reject! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:172
          • Symbol#blank? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:14
            • Kernel#respond_to? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:15
            • Symbol#empty? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:15
        • Array#flatten! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:173
        • Article::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:60
        • Array#| $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:175
        • Article::ActiveRecord_Relation#includes_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#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
  • Article::ActiveRecord_Relation#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:38
    • Article::ActiveRecord_Relation#records $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:259
      • Article::ActiveRecord_Relation#load $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:582
        • Article::ActiveRecord_Relation#exec_queries $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:701
          • Article::ActiveRecord_Relation#eager_loading? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:637
            • Article::ActiveRecord_Relation#eager_load_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.rb:639
            • Article::ActiveRecord_Relation#includes_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.rb:640
            • Article::ActiveRecord_Relation#joined_includes_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:647
              • Article::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:60
              • Article::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:60
              • Array#& $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:648
            • Array#any? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:640
            • Article::ActiveRecord_Relation#references_eager_loaded_tables? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:721
              • Article::ActiveRecord_Relation#arel $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:948
                • Article::ActiveRecord_Relation#build_arel $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:959
                  • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:960
                    • Arel::SelectManager#initialize $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:9
                      • Arel::SelectManager#initialize $GemPath0/gems/arel-7.1.4/lib/arel/tree_manager.rb:11
                      • Class#new $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:11
                        • Class#new $GemPath0/gems/arel-7.1.4/lib/arel/nodes/select_statement.rb:7
                          • Arel::Nodes::SelectCore#initialize $GemPath0/gems/arel-7.1.4/lib/arel/nodes/select_core.rb:7
                            • BasicObject#initialize $GemPath0/gems/arel-7.1.4/lib/arel/nodes/select_core.rb:8
                            • Class#new $GemPath0/gems/arel-7.1.4/lib/arel/nodes/select_core.rb:9
                              • Arel::Nodes::JoinSource#initialize $GemPath0/gems/arel-7.1.4/lib/arel/nodes/join_source.rb:9
                                • Arel::Nodes::JoinSource#initialize $GemPath0/gems/arel-7.1.4/lib/arel/nodes/binary.rb:6
                                  • BasicObject#initialize $GemPath0/gems/arel-7.1.4/lib/arel/nodes/binary.rb:7
                        • Arel::Nodes::SelectStatement#initialize $GemPath0/gems/arel-7.1.4/lib/arel/nodes/select_statement.rb:7
                          • BasicObject#initialize $GemPath0/gems/arel-7.1.4/lib/arel/nodes/select_statement.rb:8
                      • Array#last $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:12
                      • Arel::SelectManager#from $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:87
                        • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:88
                        • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:91
                  • Article::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:60
                  • Article::ActiveRecord_Relation#left_outer_joins_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:60
                  • Article::ActiveRecord_Relation#where_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:90
                    • Article::ActiveRecord_Relation#new_where_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1224
                      • ActiveRecord::Relation::WhereClause.empty $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:83
                  • ActiveRecord::Relation::WhereClause#empty? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:6
                    • Array#empty? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:6
                  • Article::ActiveRecord_Relation#having_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:90
                    • Article::ActiveRecord_Relation#new_where_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1224
                      • ActiveRecord::Relation::WhereClause.empty $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:83
                  • ActiveRecord::Relation::WhereClause#empty? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:6
                    • Array#empty? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:6
                  • Article::ActiveRecord_Relation#limit_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:73
                  • Article::ActiveRecord_Relation#limit_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:73
                  • 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
                  • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:971
                    • BasicObject#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:971
                  • Arel::SelectManager#take $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:217
                    • Class#new $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:219
                      • Arel::Nodes::Limit#initialize $GemPath0/gems/arel-7.1.4/lib/arel/nodes/unary.rb:7
                        • BasicObject#initialize $GemPath0/gems/arel-7.1.4/lib/arel/nodes/unary.rb:8
                    • Class#new $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:220
                      • Arel::Nodes::Top#initialize $GemPath0/gems/arel-7.1.4/lib/arel/nodes/unary.rb:7
                        • BasicObject#initialize $GemPath0/gems/arel-7.1.4/lib/arel/nodes/unary.rb:8
                  • Article::ActiveRecord_Relation#offset_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:73
                  • Article::ActiveRecord_Relation#group_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:60
                  • Article::ActiveRecord_Relation#build_order $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1150
                    • Article::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:60
                    • Array#uniq $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1151
                    • Array#reject! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1152
                  • Article::ActiveRecord_Relation#build_select $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1096
                    • Article::ActiveRecord_Relation#select_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:1097
                    • Article.arel_table $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:253
                    • Arel.star $GemPath0/gems/arel-7.1.4/lib/arel.rb:30
                      • Arel.sql $GemPath0/gems/arel-7.1.4/lib/arel.rb:26
                        • Class#new $GemPath0/gems/arel-7.1.4/lib/arel.rb:27
                          • String#initialize $GemPath0/gems/arel-7.1.4/lib/arel.rb:27
                    • Arel::Table#[] $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:80
                      • #<Class:#<Class:0x007fde6b2d2638>>#new $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:81
                        • Struct#initialize $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:81
                    • Arel::SelectManager#project $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:132
                      • Array#map $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:135
                        • Arel::SelectManager#block in project $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:135
                          • Kernel#class $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:136
                          • Array#include? $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:136
                      • Array#concat $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:135
                  • Article::ActiveRecord_Relation#distinct_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:73
                  • Arel::SelectManager#distinct $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:149
                  • Article::ActiveRecord_Relation#from_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:90
                    • Article::ActiveRecord_Relation#new_from_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1234
                      • ActiveRecord::Relation::FromClause.empty $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/from_clause.rb:27
                  • ActiveRecord::Relation::FromClause#empty? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/from_clause.rb:23
                    • NilClass#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/from_clause.rb:24
                  • Article::ActiveRecord_Relation#lock_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:73
              • Arel::SelectManager#join_sources $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:229
              • Array#map $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:722
              • Array#flatten $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:733
              • Array#compact $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:733
              • Array#map $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:733
                • String#downcase $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:733
              • Array#uniq $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:733
              • Article::ActiveRecord_Relation#references_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:60
              • Array#- $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:735
              • Array#any? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:735
          • Article::ActiveRecord_Relation#arel $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:948
          • Article::ActiveRecord_Relation#bound_attributes $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:101
            • Article::ActiveRecord_Relation#limit_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:73
            • Article::ActiveRecord_Relation#limit_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:73
            • 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#connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:43
              • Article.connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:90
                • Article.retrieve_connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:127
                  • Article.connection_handler $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:121
                    • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-5.0.2/lib/active_record/runtime_registry.rb:18
                      • ActiveRecord::RuntimeRegistry.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
                    • 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.connection_specification_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:98
                    • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:100
                    • ApplicationRecord.connection_specification_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:98
                      • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:100
                      • ActiveRecord::Base.connection_specification_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:98
                        • Kernel#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:99
                  • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:880
                    • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:916
                      • ActiveRecord::ConnectionAdapters::ConnectionHandler#owner_to_pool $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:933
                        • #<Class:Process>#pid $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:934
                        • 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
                      • Concurrent::Map#fetch $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:118
                        • Concurrent::Map#get_or_default $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:109
                          • Hash#fetch $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:110
                    • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:363
                      • #<Class:Thread>#current $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:364
                      • ActiveRecord::ConnectionAdapters::ConnectionPool#connection_cache_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:585
                      • 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
                          • Kernel#hash $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:20
            • Article::ActiveRecord_Relation#limit_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:73
            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#sanitize_limit $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:342
              • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:343
            • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:106
              • ActiveModel::Type::Value#initialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:6
            • ActiveRecord::Attribute.with_cast_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:12
              • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:13
                • ActiveRecord::Attribute::WithCastValue#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:29
            • Article::ActiveRecord_Relation#offset_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:73
            • Article::ActiveRecord_Relation#connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:43
              • Article.connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:90
                • Article.retrieve_connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:127
                  • Article.connection_handler $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:121
                    • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-5.0.2/lib/active_record/runtime_registry.rb:18
                      • ActiveRecord::RuntimeRegistry.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
                    • 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.connection_specification_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:98
                    • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:100
                    • ApplicationRecord.connection_specification_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:98
                      • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:100
                      • ActiveRecord::Base.connection_specification_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:98
                        • Kernel#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:99
                  • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:880
                    • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:916
                      • ActiveRecord::ConnectionAdapters::ConnectionHandler#owner_to_pool $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:933
                        • #<Class:Process>#pid $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:934
                        • 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
                      • Concurrent::Map#fetch $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:118
                        • Concurrent::Map#get_or_default $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:109
                          • Hash#fetch $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:110
                    • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:363
                      • #<Class:Thread>#current $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:364
                      • ActiveRecord::ConnectionAdapters::ConnectionPool#connection_cache_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:585
                      • 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
                          • Kernel#hash $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:20
            • Article::ActiveRecord_Relation#from_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:90
              • Article::ActiveRecord_Relation#new_from_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1234
                • ActiveRecord::Relation::FromClause.empty $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/from_clause.rb:27
            • ActiveRecord::Relation::FromClause#binds $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/from_clause.rb:11
              • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/from_clause.rb:12
            • Article::ActiveRecord_Relation#arel $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:948
            • Article::ActiveRecord_Relation#where_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:90
              • Article::ActiveRecord_Relation#new_where_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1224
                • ActiveRecord::Relation::WhereClause.empty $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:83
            • Article::ActiveRecord_Relation#having_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:90
              • Article::ActiveRecord_Relation#new_where_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1224
                • ActiveRecord::Relation::WhereClause.empty $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:83
            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#combine_bind_parameters $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract_adapter.rb:480
          • Article.find_by_sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:38
            • Article.connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:90
              • Article.retrieve_connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:127
                • Article.connection_handler $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:121
                  • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-5.0.2/lib/active_record/runtime_registry.rb:18
                    • ActiveRecord::RuntimeRegistry.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
                  • 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.connection_specification_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:98
                  • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:100
                  • ApplicationRecord.connection_specification_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:98
                    • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:100
                    • ActiveRecord::Base.connection_specification_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:98
                      • Kernel#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:99
                • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:880
                  • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:916
                    • ActiveRecord::ConnectionAdapters::ConnectionHandler#owner_to_pool $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:933
                      • #<Class:Process>#pid $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:934
                      • 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
                    • Concurrent::Map#fetch $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:118
                      • Concurrent::Map#get_or_default $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:109
                        • Hash#fetch $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:110
                  • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:363
                    • #<Class:Thread>#current $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:364
                    • ActiveRecord::ConnectionAdapters::ConnectionPool#connection_cache_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:585
                    • 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
                        • Kernel#hash $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:20
            • Article.sanitize_sql_for_conditions $GemPath0/gems/activerecord-5.0.2/lib/active_record/sanitization.rb:29
              • Arel::SelectManager#blank? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:14
                • Kernel#respond_to? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:15
              • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/sanitization.rb:33
            • Module#name $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:39
            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#select_all $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/query_cache.rb:89
              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#select_all $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:30
                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#binds_from_relation $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:389
                  • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:390
                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#to_sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:10
                  • Kernel#respond_to? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:11
                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#collector $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract_adapter.rb:144
                    • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract_adapter.rb:146
                      • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#initialize $GemPath0/gems/arel-7.1.4/lib/arel/collectors/sql_string.rb:8
                        • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#initialize $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:4
                  • Arel::Visitors::SQLite#accept $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/determine_if_preparable_visitor.rb:6
                    • Arel::Visitors::SQLite#accept $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:6
                      • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:12
                        • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-7.1.4/lib/arel/visitors/visitor.rb:24
                        • Kernel#class $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                        • Kernel#hash $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                        • Arel::Visitors::SQLite#visit_Arel_Nodes_SelectStatement $GemPath0/gems/arel-7.1.4/lib/arel/visitors/sqlite.rb:11
                          • Arel::Visitors::SQLite#visit_Arel_Nodes_SelectStatement $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:209
                            • Enumerable#inject $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:215
                              • Array#each $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:215
                                • Arel::Visitors::SQLite#block in visit_Arel_Nodes_SelectStatement $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:215
                                  • Arel::Visitors::SQLite#visit_Arel_Nodes_SelectCore $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:239
                                    • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:12
                                    • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:813
                                      • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:12
                                      • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:12
                                        • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-7.1.4/lib/arel/visitors/visitor.rb:24
                                        • Kernel#class $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                        • Kernel#hash $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                        • Arel::Visitors::SQLite#visit_Arel_Nodes_Top $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:411
                                    • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:813
                                    • Arel::Visitors::SQLite#collect_nodes_for $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:264
                                      • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:12
                                      • Enumerable#each_with_index $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:268
                                        • Array#each $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:268
                                          • Arel::Visitors::SQLite#block in collect_nodes_for $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:268
                                            • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:12
                                              • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-7.1.4/lib/arel/visitors/visitor.rb:24
                                              • Kernel#class $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                              • Kernel#hash $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                              • Arel::Visitors::SQLite#visit_Arel_Attributes_Attribute $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:725
                                                • #<Class:0x007fde6b2d2638>#relation $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:726
                                                • #<Class:0x007fde6b2d2638>#relation $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:726
                                                • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:803
                                                  • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:804
                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:90
                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3/quoting.rb:13
                                                • #<Class:0x007fde6b2d2638>#name $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:727
                                                • Arel::Visitors::SQLite#quote_column_name $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:808
                                                  • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:809
                                                • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:12
                                    • Arel::Nodes::JoinSource#empty? $GemPath0/gems/arel-7.1.4/lib/arel/nodes/join_source.rb:13
                                    • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:12
                                    • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:12
                                      • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-7.1.4/lib/arel/visitors/visitor.rb:24
                                      • Kernel#class $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                      • Kernel#hash $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                      • Arel::Visitors::SQLite#visit_Arel_Nodes_JoinSource $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:542
                                        • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:12
                                          • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-7.1.4/lib/arel/visitors/visitor.rb:24
                                          • Kernel#class $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                          • Kernel#hash $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                          • Arel::Visitors::SQLite#visit_Arel_Table $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:607
                                            • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:803
                                              • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:804
                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:90
                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3/quoting.rb:13
                                            • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:12
                                        • Array#any? $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:546
                                    • Arel::Visitors::SQLite#collect_nodes_for $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:264
                                    • Arel::Visitors::SQLite#collect_nodes_for $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:264
                                    • Arel::Visitors::SQLite#collect_nodes_for $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:264
                            • Arel::Visitors::SQLite#visit_Arel_Nodes_SelectOptions $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:233
                              • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:813
                                • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:12
                                • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:12
                                  • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-7.1.4/lib/arel/visitors/visitor.rb:24
                                  • Kernel#class $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                  • Kernel#hash $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                  • Arel::Visitors::SQLite#visit_Arel_Nodes_Limit $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:405
                                    • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:12
                                    • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:12
                                      • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-7.1.4/lib/arel/visitors/visitor.rb:24
                                      • Kernel#class $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                      • Kernel#hash $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                      • Arel::Visitors::SQLite#visit_Arel_Nodes_BindParam $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:738
                                        • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#add_bind $GemPath0/gems/arel-7.1.4/lib/arel/collectors/sql_string.rb:13
                                          • Arel::Visitors::SQLite#block in visit_Arel_Nodes_BindParam $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:739
                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:12
                              • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:813
                              • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:813
                  • Kernel#dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:13
                    • Kernel#initialize_dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:13
                      • Array#initialize_copy $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:13
                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#compile $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract_adapter.rb:139
                    • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#compile $GemPath0/gems/arel-7.1.4/lib/arel/collectors/sql_string.rb:19
                      • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#value $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:8
                • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:33
                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#select_prepared $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:376
                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#exec_query $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3_adapter.rb:190
                    • Array#map $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3_adapter.rb:191
                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in exec_query $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3_adapter.rb:191
                        • ActiveRecord::Attribute::WithCastValue#value_for_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:50
                          • ActiveRecord::Attribute::WithCastValue#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                            • ActiveRecord::Attribute::WithCastValue#type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:159
                          • ActiveModel::Type::Value#serialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:43
                        • ActiveRecord::ConnectionAdapters::SQLite3Adapter#type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:29
                          • Kernel#respond_to? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:30
                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3/quoting.rb:31
                            • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3/quoting.rb:33
                            • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3/quoting.rb:35
                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:182
                              • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:184
                              • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:184
                              • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:184
                              • TrueClass#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:186
                                • BasicObject#== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:186
                              • FalseClass#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:187
                                • BasicObject#== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:187
                              • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:189
                              • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:190
                              • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:191
                              • Time.=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:15
                                • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:16
                                • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:16
                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#types_which_need_no_typecasting $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:160
                              • NilClass#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:192
                                • BasicObject#== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:192
                              • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:192
                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#log $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract_adapter.rb:582
                      • Kernel#object_id $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract_adapter.rb:587
                      • ActiveSupport::Notifications::Instrumenter#instrument $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:17
                        • ActiveSupport::Notifications::Instrumenter#start $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:32
                          • ActiveSupport::Notifications::Fanout#start $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:41
                            • ActiveSupport::Notifications::Fanout#listeners_for $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:53
                              • 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
                            • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:42
                              • ActiveSupport::Notifications::Fanout#block in start $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:42
                                • ActiveSupport::Notifications::Fanout::Subscribers::Evented#start $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:97
                                  • ActiveRecord::LogSubscriber#start $GemPath0/gems/activesupport-5.0.2/lib/active_support/log_subscriber.rb:78
                                    • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:90
                                      • ActiveRecord::Base.logger $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                    • ActiveRecord::LogSubscriber#start $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:80
                                      • #<Class:Time>#now $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:81
                                        • Time#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:81
                                          • Fixnum#+ $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:81
                                      • Class#new $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:81
                                        • ActiveSupport::Notifications::Event#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:56
                                          • Kernel#dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:58
                                            • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:58
                                              • Hash#initialize_copy $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:58
                                      • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:100
                                        • ActiveSupport::SubscriberQueueRegistry.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
                                        • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:116
                                      • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:82
                                      • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:100
                                        • ActiveSupport::SubscriberQueueRegistry.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
                                        • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:116
                                      • Array#push $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:85
                              • ActiveSupport::Notifications::Fanout#block in start $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:42
                                • ActiveSupport::Notifications::Fanout::Subscribers::Evented#start $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:97
                                  • ActiveRecord::ExplainSubscriber#start $GemPath0/gems/activerecord-5.0.2/lib/active_record/explain_subscriber.rb:6
                        • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in log $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract_adapter.rb:589
                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in exec_query $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3_adapter.rb:193
                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter::StatementPool#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/statement_pool.rb:21
                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter::StatementPool#cache $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/statement_pool.rb:50
                                • #<Class:Process>#pid $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/statement_pool.rb:51
                            • SQLite3::Statement#reset! $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3_adapter.rb:213
                            • SQLite3::Statement#bind_params $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:35
                              • Array#flatten $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:37
                              • Array#each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:37
                                • SQLite3::Statement#block in bind_params $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:37
                                  • Module#=== $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:38
                                  • SQLite3::Statement#bind_param $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:41
                            • Enumerable#to_a $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3_adapter.rb:217
                              • SQLite3::Statement#each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:106
                                • Kernel#loop $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                  • SQLite3::Statement#block in each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                    • SQLite3::Statement#step $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                      • SQLite3::Database#encoding $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                    • SQLite3::Statement#done? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:109
                                  • SQLite3::Statement#block in each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                    • SQLite3::Statement#step $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                      • SQLite3::Database#encoding $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                    • SQLite3::Statement#done? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:109
                                  • SQLite3::Statement#block in each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                    • SQLite3::Statement#step $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                      • SQLite3::Database#encoding $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                    • SQLite3::Statement#done? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:109
                            • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3_adapter.rb:217
                              • ActiveRecord::Result#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:39
                        • ActiveSupport::Notifications::Instrumenter#finish_with_state $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:41
                          • ActiveSupport::Notifications::Fanout#finish $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:45
                            • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:46
                              • ActiveSupport::Notifications::Fanout#block in finish $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:46
                                • ActiveSupport::Notifications::Fanout::Subscribers::Evented#finish $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:101
                                  • ActiveRecord::LogSubscriber#finish $GemPath0/gems/activesupport-5.0.2/lib/active_support/log_subscriber.rb:82
                                    • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:90
                                      • ActiveRecord::Base.logger $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                    • ActiveRecord::LogSubscriber#finish $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:88
                                      • #<Class:Time>#now $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:89
                                        • Time#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:89
                                          • Fixnum#+ $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:89
                                      • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:100
                                        • ActiveSupport::SubscriberQueueRegistry.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
                                        • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:116
                                      • Array#pop $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:90
                                      • Hash#merge! $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:92
                                      • String#split $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:94
                                      • Array#first $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:94
                                      • ActiveRecord::LogSubscriber#sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:37
                                        • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:38
                                        • ActiveRecord::LogSubscriber.runtime $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:9
                                          • ActiveRecord::RuntimeRegistry.sql_runtime $GemPath0/gems/activerecord-5.0.2/lib/active_record/runtime_registry.rb:18
                                            • ActiveRecord::RuntimeRegistry.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
                                        • ActiveSupport::Notifications::Event#duration $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:78
                                          • Time#minus_with_coercion $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:258
                                            • Kernel#respond_to? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:259
                                            • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:260
                                            • Time#minus_with_duration $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:245
                                              • ActiveSupport::Duration.=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/duration.rb:102
                                                • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/duration.rb:103
                                              • Time#minus_without_duration $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:249
                                                • Fixnum#- $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:249
                                                • Numeric#quo $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:249
                                                  • Fixnum#fdiv $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:249
                                        • ActiveRecord::LogSubscriber.runtime= $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:5
                                          • ActiveRecord::RuntimeRegistry.sql_runtime= $GemPath0/gems/activerecord-5.0.2/lib/active_record/runtime_registry.rb:19
                                            • ActiveRecord::RuntimeRegistry.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::LogSubscriber#logger $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:90
                                          • ActiveRecord::Base.logger $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                        • ActiveSupport::Logger#debug? $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:92
                                          • ActiveSupport::Logger#level $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:27
                                            • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:15
                                              • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:11
                                                • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:12
                                                • BasicObject#__id__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:12
                                              • 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
                                        • Array#include? $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:43
                                        • ActiveSupport::Notifications::Event#duration $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:78
                                        • Float#round $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:45
                                        • Float#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:103
                                          • NilClass#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:105
                                          • Float#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:106
                                        • Array#map $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:50
                                          • ActiveRecord::LogSubscriber#block in sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:50
                                            • ActiveRecord::LogSubscriber#render_bind $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:23
                                              • ActiveModel::Type::Value#binary? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:55
                                              • ActiveRecord::Attribute::WithCastValue#value_for_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:50
                                                • ActiveRecord::Attribute::WithCastValue#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                • ActiveModel::Type::Value#serialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:43
                                        • Array#inspect $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:50
                                          • Array#inspect $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:50
                                            • String#inspect $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:50
                                            • Fixnum#inspect $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:50
                                        • ActiveRecord::LogSubscriber#colorize_payload_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:61
                                          • String#blank? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:114
                                            • Regexp#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:118
                                          • ActiveRecord::LogSubscriber#color $GemPath0/gems/activesupport-5.0.2/lib/active_support/log_subscriber.rb:102
                                            • ActiveRecord::LogSubscriber#colorize_logging $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:67
                                            • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/log_subscriber.rb:104
                                        • ActiveRecord::LogSubscriber#sql_color $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:69
                                          • Regexp#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:71
                                          • Regexp#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:73
                                          • Regexp#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:73
                                          • Regexp#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:75
                                        • ActiveRecord::LogSubscriber#color $GemPath0/gems/activesupport-5.0.2/lib/active_support/log_subscriber.rb:102
                                          • ActiveRecord::LogSubscriber#colorize_logging $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:67
                                          • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/log_subscriber.rb:104
                                        • ActiveRecord::LogSubscriber#debug $GemPath0/gems/activesupport-5.0.2/lib/active_support/log_subscriber.rb:92
                                          • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:90
                                            • ActiveRecord::Base.logger $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                          • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:90
                                            • ActiveRecord::Base.logger $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                          • ActiveSupport::Logger#debug /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:454
                                            • ActiveSupport::Logger#block (2 levels) in broadcast $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:24
                                              • ActiveSupport::Logger#block (2 levels) in broadcast $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:24
                                                • ActiveSupport::Logger#add $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:85
                                                  • Kernel#nil? $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:86
                                                  • ActiveSupport::Logger#level $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:27
                                                    • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:15
                                                      • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:11
                                                        • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:12
                                                        • BasicObject#__id__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:12
                                                      • 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::Logger#add /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:419
                                                    • Kernel#nil? /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:421
                                                    • NilClass#nil? /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:425
                                                    • Kernel#block_given? /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:426
                                                    • ActiveSupport::Logger#format_severity /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:541
                                                    • #<Class:Time>#now /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:434
                                                      • Time#initialize /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:434
                                                        • Fixnum#+ /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:434
                                                    • ActiveSupport::Logger#format_message /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:545
                                                      • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:101
                                                        • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:102
                                                    • Logger::LogDevice#write /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:643
                                                      • Logger::LogDevice#mon_synchronize /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/monitor.rb:211
                                                        • Logger::LogDevice#mon_enter /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/monitor.rb:185
                                                          • #<Class:Thread>#current /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/monitor.rb:186
                                                          • Thread::Mutex#lock /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/monitor.rb:187
                                                          • #<Class:Thread>#current /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/monitor.rb:188
                                                        • Logger::LogDevice#block in write /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:645
                                                          • IO#write /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:654
                                                        • Logger::LogDevice#mon_exit /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/monitor.rb:197
                                                          • Logger::LogDevice#mon_check_owner /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/monitor.rb:247
                                                            • #<Class:Thread>#current /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/monitor.rb:248
                                                          • Thread::Mutex#unlock /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/monitor.rb:202
                                                • ActiveSupport::Logger#add $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:85
                                                  • Kernel#nil? $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:86
                                                  • ActiveSupport::Logger#level $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:27
                                                    • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:15
                                                      • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:11
                                                        • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:12
                                                        • BasicObject#__id__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:12
                                                      • 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::Logger#add /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:419
                                                    • Kernel#nil? /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:421
                                                    • NilClass#nil? /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:425
                                                    • Kernel#block_given? /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:426
                                                    • ActiveSupport::Logger#format_severity /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:541
                                                    • #<Class:Time>#now /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:434
                                                      • Time#initialize /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:434
                                                        • Fixnum#+ /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:434
                                                    • ActiveSupport::Logger#format_message /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:545
                                                      • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-5.0.2/lib/active_support/tagged_logging.rb:20
                                                        • ActiveSupport::Logger::SimpleFormatter#tags_text $GemPath0/gems/activesupport-5.0.2/lib/active_support/tagged_logging.rb:51
                                                          • ActiveSupport::Logger::SimpleFormatter#current_tags $GemPath0/gems/activesupport-5.0.2/lib/active_support/tagged_logging.rb:45
                                                            • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/tagged_logging.rb:48
                                                            • Thread#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/tagged_logging.rb:48
                                                          • Array#any? $GemPath0/gems/activesupport-5.0.2/lib/active_support/tagged_logging.rb:53
                                                        • NilClass#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/tagged_logging.rb:21
                                                        • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:101
                                                          • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:102
                                                    • Logger::LogDevice#write /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:643
                                                      • Logger::LogDevice#mon_synchronize /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/monitor.rb:211
                                                        • Logger::LogDevice#mon_enter /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/monitor.rb:185
                                                          • #<Class:Thread>#current /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/monitor.rb:186
                                                          • Thread::Mutex#lock /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/monitor.rb:187
                                                          • #<Class:Thread>#current /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/monitor.rb:188
                                                        • Logger::LogDevice#block in write /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:645
                                                          • IO#write /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:654
                                                        • Logger::LogDevice#mon_exit /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/monitor.rb:197
                                                          • Logger::LogDevice#mon_check_owner /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/monitor.rb:247
                                                            • #<Class:Thread>#current /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/monitor.rb:248
                                                          • Thread::Mutex#unlock /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/monitor.rb:202
                              • ActiveSupport::Notifications::Fanout#block in finish $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:46
                                • ActiveSupport::Notifications::Fanout::Subscribers::Evented#finish $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:101
                                  • ActiveRecord::ExplainSubscriber#finish $GemPath0/gems/activerecord-5.0.2/lib/active_record/explain_subscriber.rb:10
                                    • ActiveRecord::ExplainRegistry.collect? $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:53
                                      • ActiveRecord::ExplainRegistry.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::ExplainRegistry#collect? $GemPath0/gems/activerecord-5.0.2/lib/active_record/explain_registry.rb:21
            • Kernel#dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:40
              • Kernel#initialize_dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:40
                • Hash#initialize_copy $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:40
            • Article.columns_hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:338
              • Article.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                • Article.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
            • Hash#each_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:41
              • Article.block in find_by_sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:41
                • Hash#delete $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:41
              • Article.block in find_by_sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:41
                • Hash#delete $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:41
              • Article.block in find_by_sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:41
                • Hash#delete $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:41
              • Article.block in find_by_sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:41
                • Hash#delete $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:41
              • Article.block in find_by_sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:41
                • Hash#delete $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:41
              • Article.block in find_by_sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:41
                • Hash#delete $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:41
            • ActiveSupport::Notifications.instrumenter $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications.rb:185
              • ActiveSupport::Notifications::InstrumentationRegistry.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
              • ActiveSupport::Notifications::InstrumentationRegistry#instrumenter_for $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications.rb:205
                • Kernel#hash $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications.rb:206
            • ActiveRecord::Result#length $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:46
            • Module#name $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:46
            • ActiveSupport::Notifications::Instrumenter#instrument $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:17
              • ActiveSupport::Notifications::Instrumenter#start $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:32
                • ActiveSupport::Notifications::Fanout#start $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:41
                  • ActiveSupport::Notifications::Fanout#listeners_for $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:53
                    • 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
                  • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:42
              • Article.block in find_by_sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:49
                • Enumerable#map $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:50
                  • ActiveRecord::Result#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:50
                    • Kernel#block_given? $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:51
                    • ActiveRecord::Result#hash_rows $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:112
                      • Array#map $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                        • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                          • Kernel#dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                            • Kernel#initialize_dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                              • String#initialize_copy $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                          • String#freeze $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                        • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                          • Kernel#dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                            • Kernel#initialize_dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                              • String#initialize_copy $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                          • String#freeze $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                        • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                          • Kernel#dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                            • Kernel#initialize_dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                              • String#initialize_copy $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                          • String#freeze $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                        • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                          • Kernel#dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                            • Kernel#initialize_dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                              • String#initialize_copy $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                          • String#freeze $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                        • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                          • Kernel#dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                            • Kernel#initialize_dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                              • String#initialize_copy $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                          • String#freeze $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                        • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                          • Kernel#dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                            • Kernel#initialize_dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                              • String#initialize_copy $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                          • String#freeze $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                      • Array#map $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:118
                        • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:118
                        • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:118
                    • Array#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:52
                      • ActiveRecord::Result#block in each $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:52
                        • Article.block (2 levels) in find_by_sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:50
                          • Article.instantiate $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:66
                            • Article.discriminate_class_for_record $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:161
                              • Article.using_single_table_inheritance? $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:169
                                • Article.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                  • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:272
                                  • ApplicationRecord.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                    • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:272
                                    • ActiveRecord::Base.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                • NilClass#present? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:21
                                  • NilClass#blank? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:52
                              • Article.discriminate_class_for_record $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:78
                            • Article.attributes_builder $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:330
                            • ActiveRecord::AttributeSet::Builder#build_from_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:14
                              • Hash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:15
                              • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:19
                                • ActiveRecord::LazyAttributeHash#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:28
                              • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:20
                                • ActiveRecord::AttributeSet#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:7
                            • Article.allocate $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:133
                              • Article.define_attribute_methods $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:55
                              • Class#allocate $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:135
                            • Article#init_with $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:339
                              • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:340
                              • ActiveRecord::LegacyYamlAdapter.convert $GemPath0/gems/activerecord-5.0.2/lib/active_record/legacy_yaml_adapter.rb:3
                                • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/legacy_yaml_adapter.rb:4
                              • Article#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/aggregations.rb:22
                                • Article#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:267
                                  • Article#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:539
                              • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:347
                              • Article.define_attribute_methods $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:55
                              • Kernel#block_given? $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:349
                              • Article#_run_find_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:749
                                • Article#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                  • Article#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                    • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:111
                                    • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                    • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                      • 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#__run_callbacks__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:95
                                  • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:480
                                  • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:97
                              • Article#_run_initialize_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:749
                                • Article#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                  • Article#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                    • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:111
                                    • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                    • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                      • 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#__run_callbacks__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:95
                                  • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:480
                                  • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:97
                      • ActiveRecord::Result#block in each $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:52
                        • Article.block (2 levels) in find_by_sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:50
                          • Article.instantiate $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:66
                            • Article.discriminate_class_for_record $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:161
                              • Article.using_single_table_inheritance? $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:169
                                • Article.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                  • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:272
                                  • ApplicationRecord.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                    • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:272
                                    • ActiveRecord::Base.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                • NilClass#present? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:21
                                  • NilClass#blank? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:52
                              • Article.discriminate_class_for_record $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:78
                            • Article.attributes_builder $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:330
                            • ActiveRecord::AttributeSet::Builder#build_from_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:14
                              • Hash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:15
                              • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:19
                                • ActiveRecord::LazyAttributeHash#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:28
                              • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:20
                                • ActiveRecord::AttributeSet#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:7
                            • Article.allocate $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:133
                              • Article.define_attribute_methods $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:55
                              • Class#allocate $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:135
                            • Article#init_with $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:339
                              • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:340
                              • ActiveRecord::LegacyYamlAdapter.convert $GemPath0/gems/activerecord-5.0.2/lib/active_record/legacy_yaml_adapter.rb:3
                                • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/legacy_yaml_adapter.rb:4
                              • Article#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/aggregations.rb:22
                                • Article#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:267
                                  • Article#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:539
                              • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:347
                              • Article.define_attribute_methods $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:55
                              • Kernel#block_given? $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:349
                              • Article#_run_find_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:749
                                • Article#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                  • Article#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                    • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:111
                                    • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                    • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                      • 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#__run_callbacks__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:95
                                  • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:480
                                  • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:97
                              • Article#_run_initialize_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:749
                                • Article#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                  • Article#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                    • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:111
                                    • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                    • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                      • 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#__run_callbacks__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:95
                                  • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:480
                                  • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:97
              • ActiveSupport::Notifications::Instrumenter#finish_with_state $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:41
                • ActiveSupport::Notifications::Fanout#finish $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:45
                  • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:46
          • Kernel#freeze $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:702
          • Article::ActiveRecord_Relation#preload_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:60
          • Article::ActiveRecord_Relation#eager_loading? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:637
            • Article::ActiveRecord_Relation#eager_load_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.rb:639
            • Article::ActiveRecord_Relation#includes_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.rb:640
            • Article::ActiveRecord_Relation#joined_includes_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:647
              • Article::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:60
              • Article::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:60
              • Array#& $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:648
            • Array#any? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:640
            • Article::ActiveRecord_Relation#references_eager_loaded_tables? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:721
              • Article::ActiveRecord_Relation#arel $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:948
              • Arel::SelectManager#join_sources $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:229
              • Array#map $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:722
              • Array#flatten $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:733
              • Array#compact $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:733
              • Array#map $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:733
                • String#downcase $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:733
              • Array#uniq $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:733
              • Article::ActiveRecord_Relation#references_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:60
              • Array#- $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:735
              • Array#any? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:735
          • Article::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:60
          • Article::ActiveRecord_Relation#build_preloader $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:717
            • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:718
              • BasicObject#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:718
          • Array#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:707
            • Article::ActiveRecord_Relation#block in exec_queries $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:707
              • ActiveRecord::Associations::Preloader#preload $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader.rb:93
                • Array.wrap $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/wrap.rb:37
                  • Kernel#nil? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/wrap.rb:38
                  • Kernel#respond_to? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/wrap.rb:40
                  • Array#to_ary $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/array/wrap.rb:41
                • Array#compact $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader.rb:94
                • Array#uniq $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader.rb:94
                  • Article#hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:435
                    • Article#__temp__9646 $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:34
                      • Article#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                              • ActiveRecord::LazyAttributeHash#assign_default_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:118
                                • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:119
                                • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:121
                                • ActiveRecord::Attribute.from_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:4
                                  • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:5
                                    • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:29
                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                            • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:139
                              • ActiveModel::Type::Integer#deserialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:19
                                • Kernel#nil? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:20
                                • Integer#to_i $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:21
                    • Article#__temp__9646 $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:34
                      • Article#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                    • Kernel#hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:437
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                      • Article#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
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                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
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                              • ActiveRecord::LazyAttributeHash#assign_default_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:118
                                • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:119
                                • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:121
                                • ActiveRecord::Attribute.from_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:4
                                  • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:5
                                    • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:29
                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                            • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:139
                              • ActiveModel::Type::Integer#deserialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:19
                                • Kernel#nil? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:20
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                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
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                      • Article#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
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                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
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                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
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                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
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                          • ActiveRecord::Associations::Preloader#grouped_records $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader.rb:157
                            • Array#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader.rb:159
                              • ActiveRecord::Associations::Preloader#block in grouped_records $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader.rb:159
                                • Article#association $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:233
                                  • Article#association_instance_get $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:273
                                  • NilClass#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:236
                                  • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:237
                                  • Article._reflect_on_association $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:113
                                    • 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:114
                                  • ActiveRecord::Reflection::HasManyReflection#association_class $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:636
                                  • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:240
                                    • ActiveRecord::Associations::HasManyAssociation#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:24
                                      • ActiveRecord::Reflection::HasManyReflection#check_validity! $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:409
                                        • ActiveRecord::Reflection::HasManyReflection#check_validity_of_inverse! $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:199
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                                            • ActiveRecord::Reflection::HasManyReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                              • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                          • ActiveRecord::Reflection::HasManyReflection#inverse_of $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:193
                                            • ActiveRecord::Reflection::HasManyReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                              • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                          • Kernel#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:201
                                      • ActiveRecord::Associations::HasManyAssociation#reset $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/collection_association.rb:85
                                        • ActiveRecord::Associations::HasManyAssociation#reset $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:42
                                      • ActiveRecord::Associations::HasManyAssociation#reset_scope $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:101
                                  • Article#association_instance_set $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:278
                                • Kernel#hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader.rb:162
                                • ActiveRecord::Associations::HasManyAssociation#klass $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:117
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                                • Kernel#hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader.rb:163
                              • ActiveRecord::Associations::Preloader#block in grouped_records $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader.rb:159
                                • Article#association $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:233
                                  • Article#association_instance_get $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:273
                                  • NilClass#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:236
                                  • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:237
                                  • Article._reflect_on_association $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:113
                                    • 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:114
                                  • ActiveRecord::Reflection::HasManyReflection#association_class $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:636
                                  • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:240
                                    • ActiveRecord::Associations::HasManyAssociation#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:24
                                      • ActiveRecord::Reflection::HasManyReflection#check_validity! $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:409
                                        • ActiveRecord::Reflection::HasManyReflection#check_validity_of_inverse! $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:199
                                          • ActiveRecord::Reflection::HasManyReflection#polymorphic? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:511
                                          • ActiveRecord::Reflection::HasManyReflection#has_inverse? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:464
                                            • ActiveRecord::Reflection::HasManyReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                              • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                          • ActiveRecord::Reflection::HasManyReflection#inverse_of $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:193
                                            • ActiveRecord::Reflection::HasManyReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                              • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                          • Kernel#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:201
                                      • ActiveRecord::Associations::HasManyAssociation#reset $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/collection_association.rb:85
                                        • ActiveRecord::Associations::HasManyAssociation#reset $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:42
                                      • ActiveRecord::Associations::HasManyAssociation#reset_scope $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:101
                                  • Article#association_instance_set $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:278
                                • Kernel#hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader.rb:162
                                • ActiveRecord::Associations::HasManyAssociation#klass $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:117
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                                • Kernel#hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader.rb:163
                          • Enumerable#flat_map $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader.rb:148
                            • Hash#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader.rb:148
                              • ActiveRecord::Associations::Preloader#block in preloaders_for_one $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader.rb:148
                                • Enumerable#map $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader.rb:149
                                  • Hash#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader.rb:149
                                    • ActiveRecord::Associations::Preloader#block (2 levels) in preloaders_for_one $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader.rb:149
                                      • ActiveRecord::Associations::Preloader#preloader_for $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader.rb:194
                                        • Array#first $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader.rb:197
                                        • Article#association $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:233
                                          • Article#association_instance_get $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:273
                                          • Kernel#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:236
                                        • ActiveRecord::Associations::HasManyAssociation#loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:58
                                        • ActiveRecord::Reflection::HasManyReflection#check_preloadable! $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:413
                                        • ActiveRecord::Reflection::HasManyReflection#macro $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:632
                                      • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader.rb:150
                                        • ActiveRecord::Associations::Preloader::HasMany#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:8
                                          • Array#first $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:13
                                          • Array#first $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:13
                                          • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:13
                                      • ActiveRecord::Associations::Preloader::HasMany#run $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:18
                                        • ActiveRecord::Associations::Preloader::HasMany#preload $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/collection_association.rb:7
                                          • ActiveRecord::Associations::Preloader::HasMany#associated_records_by_owner $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:64
                                            • ActiveRecord::Associations::Preloader::HasMany#load_records $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:116
                                              • ActiveRecord::Associations::Preloader::HasMany#owner_keys $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:76
                                                • Array#map $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:78
                                                  • ActiveRecord::Associations::Preloader::HasMany#block in owner_keys $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:78
                                                    • ActiveRecord::Associations::Preloader::HasMany#owner_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:10
                                                      • ActiveRecord::Reflection::HasManyReflection#active_record_primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:405
                                                    • Article#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:346
                                                      • Article#read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:50
                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:51
                                                        • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:52
                                                        • Article.primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/primary_key.rb:72
                                                        • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:52
                                                        • Article.primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/primary_key.rb:72
                                                        • Article#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                          • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                          • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                            • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                  • ActiveRecord::Associations::Preloader::HasMany#block in owner_keys $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:78
                                                    • ActiveRecord::Associations::Preloader::HasMany#owner_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:10
                                                      • ActiveRecord::Reflection::HasManyReflection#active_record_primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:405
                                                    • Article#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:346
                                                      • Article#read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:50
                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:51
                                                        • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:52
                                                        • Article.primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/primary_key.rb:72
                                                        • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:52
                                                        • Article.primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/primary_key.rb:72
                                                        • Article#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                          • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                          • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
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                                                • Array#uniq! $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:81
                                                • Array#compact! $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:82
                                              • ActiveRecord::Associations::Preloader::HasMany#owner_keys $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:76
                                              • Comment.connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:90
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                                                  • Comment.connection_handler $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:121
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                                                        • #<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
                                                    • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                      • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                  • Comment.connection_specification_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:98
                                                    • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:100
                                                    • ApplicationRecord.connection_specification_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:98
                                                      • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:100
                                                      • ActiveRecord::Base.connection_specification_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:98
                                                        • Kernel#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:99
                                                  • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:880
                                                    • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:916
                                                      • ActiveRecord::ConnectionAdapters::ConnectionHandler#owner_to_pool $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:933
                                                        • #<Class:Process>#pid $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:934
                                                        • 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
                                                      • Concurrent::Map#fetch $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:118
                                                        • Concurrent::Map#get_or_default $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:109
                                                          • Hash#fetch $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:110
                                                    • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:363
                                                      • #<Class:Thread>#current $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:364
                                                      • ActiveRecord::ConnectionAdapters::ConnectionPool#connection_cache_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:585
                                                      • 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
                                                          • Kernel#hash $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:20
                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#in_clause_length $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/database_limits.rb:51
                                              • ActiveRecord::Associations::Preloader::HasMany#owner_keys $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:76
                                              • Enumerable#each_slice $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:120
                                              • Enumerable#flat_map $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:121
                                                • Enumerator#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:121
                                                  • Enumerable#each_slice $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:121
                                                    • Array#size $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:121
                                                    • Array#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:121
                                                      • ActiveRecord::Associations::Preloader::HasMany#block in load_records $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:121
                                                        • ActiveRecord::Associations::Preloader::HasMany#records_for $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:30
                                                          • ActiveRecord::Associations::Preloader::HasMany#query_scope $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:34
                                                            • ActiveRecord::Associations::Preloader::HasMany#scope $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:26
                                                              • ActiveRecord::Associations::Preloader::HasMany#build_scope $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:133
                                                                • Comment.unscoped $GemPath0/gems/activerecord-5.0.2/lib/active_record/scoping/default.rb:34
                                                                  • Kernel#block_given? $GemPath0/gems/activerecord-5.0.2/lib/active_record/scoping/default.rb:35
                                                                  • Comment.relation $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:289
                                                                    • Comment.arel_table $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:253
                                                                    • Comment.predicate_builder $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:272
                                                                    • 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
                                                                        • Comment.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
                                                                        • Comment::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:24
                                                                    • Comment.finder_needs_type_condition? $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:81
                                                                • ActiveRecord::Associations::Preloader::HasMany#reflection_scope $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:129
                                                                  • ActiveRecord::Reflection::HasManyReflection#scope_for $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:314
                                                                    • Comment.unscoped $GemPath0/gems/activerecord-5.0.2/lib/active_record/scoping/default.rb:34
                                                                      • Kernel#block_given? $GemPath0/gems/activerecord-5.0.2/lib/active_record/scoping/default.rb:35
                                                                      • Comment.relation $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:289
                                                                        • Comment.arel_table $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:253
                                                                        • Comment.predicate_builder $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:272
                                                                        • 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
                                                                            • Comment.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
                                                                            • Comment::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:24
                                                                        • Comment.finder_needs_type_condition? $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:81
                                                                • Comment::ActiveRecord_Relation#values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:681
                                                                  • #<Class:Hash>#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:682
                                                                • #<Class:0x007fde6bfe2008>#values $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:137
                                                                • ActiveRecord::Associations::Preloader::HasMany#reflection_scope $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:129
                                                                • Comment::ActiveRecord_Relation#where_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:90
                                                                  • Comment::ActiveRecord_Relation#new_where_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1224
                                                                    • ActiveRecord::Relation::WhereClause.empty $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:83
                                                                • #<Class:0x007fde6bfe2008>#where_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:139
                                                                • ActiveRecord::Relation::WhereClause#+ $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:13
                                                                  • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:14
                                                                    • ActiveRecord::Relation::WhereClause#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:8
                                                                • Comment::ActiveRecord_Relation#where_clause= $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:94
                                                                  • Comment::ActiveRecord_Relation#assert_mutability! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:954
                                                                • Kernel#Array $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:140
                                                                  • NilClass#to_a $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:140
                                                                • Kernel#Array $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:140
                                                                  • NilClass#to_a $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:140
                                                                • Comment::ActiveRecord_Relation#references_values= $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:64
                                                                  • Comment::ActiveRecord_Relation#assert_mutability! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:954
                                                                • Comment::ActiveRecord_Relation#includes! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:171
                                                                  • Array#reject! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:172
                                                                    • NilClass#blank? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:52
                                                                  • Array#flatten! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:173
                                                                  • Comment::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:60
                                                                  • Array#| $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:175
                                                                  • Comment::ActiveRecord_Relation#includes_values= $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:64
                                                                    • Comment::ActiveRecord_Relation#assert_mutability! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:954
                                                                • #<Class:0x007fde6bfe2008>#joins_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:146
                                                                • Array#any? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:146
                                                                • ActiveRecord::Associations::Preloader::HasMany#reflection_scope $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:129
                                                                • Comment::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:60
                                                                • Comment::ActiveRecord_Relation#joins! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:472
                                                                  • Array#compact! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:473
                                                                  • Array#flatten! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:474
                                                                  • Comment::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:60
                                                                  • Comment::ActiveRecord_Relation#joins_values= $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:64
                                                                    • Comment::ActiveRecord_Relation#assert_mutability! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:954
                                                                • ActiveRecord::Associations::Preloader::HasMany#options $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:58
                                                                • Kernel#Array $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:168
                                                                  • NilClass#to_a $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:168
                                                                • Kernel#Array $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:168
                                                                  • NilClass#to_a $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:168
                                                                • Comment::ActiveRecord_Relation#unscope_values= $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:64
                                                                  • Comment::ActiveRecord_Relation#assert_mutability! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:954
                                                                • Comment.default_scoped $GemPath0/gems/activerecord-5.0.2/lib/active_record/scoping/named.rb:32
                                                                  • Comment.build_default_scope $GemPath0/gems/activerecord-5.0.2/lib/active_record/scoping/default.rb:104
                                                                    • Comment.abstract_class? $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:124
                                                                    • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                      • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                    • Kernel#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/scoping/default.rb:107
                                                                    • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                      • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                    • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                      • Comment.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
                                                                  • Comment.relation $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:289
                                                                    • Comment.arel_table $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:253
                                                                    • Comment.predicate_builder $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:272
                                                                    • 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
                                                                        • Comment.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
                                                                        • Comment::ActiveRecord_Relation#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:24
                                                                    • Comment.finder_needs_type_condition? $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:81
                                                                • Comment::ActiveRecord_Relation#merge $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/spawn_methods.rb:30
                                                                  • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/spawn_methods.rb:31
                                                                  • Comment::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
                                                                        • Comment::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
                                                                          • Comment::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
                                                                  • Comment::ActiveRecord_Relation#merge! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/spawn_methods.rb:40
                                                                    • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/spawn_methods.rb:41
                                                                    • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/spawn_methods.rb:43
                                                                    • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/spawn_methods.rb:44
                                                                      • ActiveRecord::Relation::Merger#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:45
                                                                        • Comment::ActiveRecord_Relation#values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:681
                                                                          • #<Class:Hash>#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:682
                                                                    • ActiveRecord::Relation::Merger#merge $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:59
                                                                      • ActiveRecord::Relation::Merger#normal_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:55
                                                                      • Array#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:60
                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:60
                                                                          • NilClass#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:66
                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:60
                                                                          • NilClass#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:66
                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:60
                                                                          • NilClass#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:66
                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:60
                                                                          • NilClass#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:66
                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:60
                                                                          • NilClass#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:66
                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:60
                                                                          • Kernel#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:66
                                                                          • Array#blank? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:66
                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:60
                                                                          • NilClass#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:66
                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:60
                                                                          • Kernel#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:66
                                                                          • Array#blank? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:66
                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:60
                                                                          • NilClass#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:66
                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:60
                                                                          • NilClass#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:66
                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:60
                                                                          • NilClass#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:66
                                                                        • ActiveRecord::Relation::Merger#block in merge $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:60
                                                                          • NilClass#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:66
                                                                      • ActiveRecord::Relation::Merger#merge_multi_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:131
                                                                        • Comment::ActiveRecord_Relation#reordering_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:73
                                                                        • Comment::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:60
                                                                        • Comment::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:60
                                                                        • Comment::ActiveRecord_Relation#order! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:342
                                                                          • Comment::ActiveRecord_Relation#preprocess_order_args $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1170
                                                                            • Array#map! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1171
                                                                              • Comment::ActiveRecord_Relation#block in preprocess_order_args $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1171
                                                                                • Comment.sanitize_sql_for_order $GemPath0/gems/activerecord-5.0.2/lib/active_record/sanitization.rb:70
                                                                                  • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/sanitization.rb:71
                                                                                  • Array#first $GemPath0/gems/activerecord-5.0.2/lib/active_record/sanitization.rb:71
                                                                                  • NilClass#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/sanitization.rb:71
                                                                                  • String#include? $GemPath0/gems/activerecord-5.0.2/lib/active_record/sanitization.rb:71
                                                                            • Array#flatten! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1174
                                                                            • Comment::ActiveRecord_Relation#validate_order_args $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1160
                                                                              • Array#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1161
                                                                            • Enumerable#grep $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1177
                                                                              • Array#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1177
                                                                            • Array#map! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1178
                                                                            • Array#compact! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1178
                                                                            • Array#any? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1179
                                                                            • Array#map! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1182
                                                                            • Array#flatten! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1193
                                                                          • Comment::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:60
                                                                          • Comment::ActiveRecord_Relation#order_values= $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:64
                                                                            • Comment::ActiveRecord_Relation#assert_mutability! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:954
                                                                        • Comment::ActiveRecord_Relation#extending_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:60
                                                                        • Array#blank? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:140
                                                                      • ActiveRecord::Relation::Merger#merge_single_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:143
                                                                        • Comment::ActiveRecord_Relation#from_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:90
                                                                          • Comment::ActiveRecord_Relation#new_from_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1234
                                                                            • ActiveRecord::Relation::FromClause.empty $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/from_clause.rb:27
                                                                        • ActiveRecord::Relation::FromClause#empty? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/from_clause.rb:23
                                                                          • NilClass#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/from_clause.rb:24
                                                                        • Comment::ActiveRecord_Relation#from_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:90
                                                                          • Comment::ActiveRecord_Relation#new_from_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1234
                                                                            • ActiveRecord::Relation::FromClause.empty $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/from_clause.rb:27
                                                                        • Comment::ActiveRecord_Relation#from_clause= $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:94
                                                                          • Comment::ActiveRecord_Relation#assert_mutability! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:954
                                                                        • Comment::ActiveRecord_Relation#lock_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:73
                                                                        • Comment::ActiveRecord_Relation#lock_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:73
                                                                        • Comment::ActiveRecord_Relation#lock_value= $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:81
                                                                          • Comment::ActiveRecord_Relation#assert_mutability! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:954
                                                                        • Comment::ActiveRecord_Relation#create_with_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:127
                                                                        • Hash#blank? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:149
                                                                      • ActiveRecord::Relation::Merger#merge_clauses $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:158
                                                                        • Array#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:159
                                                                          • ActiveRecord::Relation::Merger#block in merge_clauses $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:159
                                                                            • Comment::ActiveRecord_Relation#where_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:90
                                                                              • Comment::ActiveRecord_Relation#new_where_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1224
                                                                                • ActiveRecord::Relation::WhereClause.empty $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:83
                                                                            • Comment::ActiveRecord_Relation#where_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:90
                                                                            • ActiveRecord::Relation::WhereClause#merge $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:20
                                                                              • ActiveRecord::Relation::WhereClause#predicates_unreferenced_by $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:100
                                                                                • Array#reject $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:101
                                                                              • ActiveRecord::Relation::WhereClause#non_conflicting_binds $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:110
                                                                                • ActiveRecord::Relation::WhereClause#referenced_columns $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:91
                                                                                • ActiveRecord::Relation::WhereClause#referenced_columns $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:91
                                                                                  • Array#select $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:93
                                                                                  • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:94
                                                                                    • Set#initialize /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:82
                                                                                      • Class#new /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:83
                                                                                        • Hash#initialize /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:83
                                                                                      • Kernel#nil? /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:85
                                                                                      • Set#do_with_enum /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:94
                                                                                        • Kernel#respond_to? /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:95
                                                                                        • Enumerable#each_entry /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:96
                                                                                          • Array#each /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:96
                                                                                • Set#& /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:418
                                                                                  • Kernel#class /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:419
                                                                                  • Class#new /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:419
                                                                                    • Set#initialize /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:82
                                                                                      • Class#new /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:83
                                                                                        • Hash#initialize /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:83
                                                                                      • NilClass#nil? /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:85
                                                                                  • Set#do_with_enum /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:94
                                                                                    • Kernel#respond_to? /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:95
                                                                                    • Enumerable#each_entry /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:96
                                                                                      • Set#each /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:304
                                                                                        • Hash#each_key /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:306
                                                                                • Set#collect! /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:358
                                                                                  • Kernel#block_given? /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:359
                                                                                  • Kernel#class /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:360
                                                                                  • Class#new /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:360
                                                                                    • Set#initialize /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:82
                                                                                      • Class#new /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:83
                                                                                        • Hash#initialize /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:83
                                                                                      • Kernel#nil? /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:85
                                                                                      • Set#do_with_enum /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:94
                                                                                        • Kernel#respond_to? /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:95
                                                                                        • Enumerable#each_entry /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:96
                                                                                          • Set#each /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:304
                                                                                            • Hash#each_key /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:306
                                                                                  • Set#replace /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:151
                                                                                    • Kernel#class /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:152
                                                                                    • Kernel#instance_of? /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:152
                                                                                    • Kernel#instance_variable_get /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:153
                                                                                    • Hash#replace /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:153
                                                                                • Array#reject $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:113
                                                                              • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:21
                                                                                • ActiveRecord::Relation::WhereClause#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:8
                                                                            • Comment::ActiveRecord_Relation#where_clause= $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:94
                                                                              • Comment::ActiveRecord_Relation#assert_mutability! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:954
                                                                          • ActiveRecord::Relation::Merger#block in merge_clauses $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:159
                                                                            • Comment::ActiveRecord_Relation#having_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:90
                                                                              • Comment::ActiveRecord_Relation#new_where_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1224
                                                                                • ActiveRecord::Relation::WhereClause.empty $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:83
                                                                            • Comment::ActiveRecord_Relation#having_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:90
                                                                              • Comment::ActiveRecord_Relation#new_where_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1224
                                                                                • ActiveRecord::Relation::WhereClause.empty $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:83
                                                                            • ActiveRecord::Relation::WhereClause#merge $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:20
                                                                              • ActiveRecord::Relation::WhereClause#predicates_unreferenced_by $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:100
                                                                                • Array#reject $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:101
                                                                              • ActiveRecord::Relation::WhereClause#non_conflicting_binds $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:110
                                                                                • ActiveRecord::Relation::WhereClause#referenced_columns $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:91
                                                                                • ActiveRecord::Relation::WhereClause#referenced_columns $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:91
                                                                                • Set#& /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:418
                                                                                  • Kernel#class /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:419
                                                                                  • Class#new /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:419
                                                                                    • Set#initialize /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:82
                                                                                      • Class#new /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:83
                                                                                        • Hash#initialize /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:83
                                                                                      • NilClass#nil? /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:85
                                                                                  • Set#do_with_enum /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:94
                                                                                    • Kernel#respond_to? /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:95
                                                                                    • Enumerable#each_entry /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:96
                                                                                      • Set#each /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:304
                                                                                        • Hash#each_key /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:306
                                                                                • Set#collect! /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:358
                                                                                  • Kernel#block_given? /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:359
                                                                                  • Kernel#class /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:360
                                                                                  • Class#new /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:360
                                                                                    • Set#initialize /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:82
                                                                                      • Class#new /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:83
                                                                                        • Hash#initialize /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:83
                                                                                      • Kernel#nil? /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:85
                                                                                      • Set#do_with_enum /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:94
                                                                                        • Kernel#respond_to? /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:95
                                                                                        • Enumerable#each_entry /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:96
                                                                                          • Set#each /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:304
                                                                                            • Hash#each_key /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:306
                                                                                  • Set#replace /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:151
                                                                                    • Kernel#class /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:152
                                                                                    • Kernel#instance_of? /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:152
                                                                                    • Kernel#instance_variable_get /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:153
                                                                                    • Hash#replace /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/set.rb:153
                                                                                • Array#reject $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:113
                                                                              • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:21
                                                                                • ActiveRecord::Relation::WhereClause#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:8
                                                                            • Comment::ActiveRecord_Relation#having_clause= $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:94
                                                                              • Comment::ActiveRecord_Relation#assert_mutability! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:954
                                                                          • ActiveRecord::Relation::Merger#block in merge_clauses $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:159
                                                                            • Comment::ActiveRecord_Relation#from_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:90
                                                                            • Comment::ActiveRecord_Relation#from_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:90
                                                                              • Comment::ActiveRecord_Relation#new_from_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1234
                                                                                • ActiveRecord::Relation::FromClause.empty $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/from_clause.rb:27
                                                                            • ActiveRecord::Relation::FromClause#merge $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/from_clause.rb:19
                                                                            • Comment::ActiveRecord_Relation#from_clause= $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:94
                                                                              • Comment::ActiveRecord_Relation#assert_mutability! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:954
                                                                      • ActiveRecord::Relation::Merger#merge_preloads $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:86
                                                                        • Comment::ActiveRecord_Relation#preload_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:60
                                                                        • Comment::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:60
                                                                      • ActiveRecord::Relation::Merger#merge_joins $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:107
                                                                        • Comment::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:60
                                                                        • Array#blank? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/merger.rb:108
                                                            • ActiveRecord::Associations::Preloader::HasMany#association_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:6
                                                              • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                            • Comment::ActiveRecord_Relation#where $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:619
                                                              • Hash#blank? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:622
                                                              • Comment::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
                                                                    • Comment::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
                                                                      • Comment::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
                                                              • Comment::ActiveRecord_Relation#where! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:629
                                                                • Comment::ActiveRecord_Relation#sanitize_for_mass_assignment $GemPath0/gems/activemodel-5.0.2/lib/active_model/forbidden_attributes_protection.rb:19
                                                                  • Kernel#respond_to? $GemPath0/gems/activemodel-5.0.2/lib/active_model/forbidden_attributes_protection.rb:20
                                                                • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:631
                                                                • ActiveRecord::PredicateBuilder.references $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:49
                                                                  • Enumerable#map $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:50
                                                                    • Hash#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:50
                                                                      • ActiveRecord::PredicateBuilder.block in references $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:50
                                                                        • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:51
                                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:54
                                                                        • String#include? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:55
                                                                  • Array#compact $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:57
                                                                • Comment::ActiveRecord_Relation#references! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:224
                                                                  • Array#flatten! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:225
                                                                  • Array#map! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:226
                                                                  • Comment::ActiveRecord_Relation#references_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:60
                                                                  • Array#| $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:228
                                                                  • Comment::ActiveRecord_Relation#references_values= $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:64
                                                                    • Comment::ActiveRecord_Relation#assert_mutability! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:954
                                                                • Comment::ActiveRecord_Relation#where_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:90
                                                                • Comment::ActiveRecord_Relation#where_clause_factory $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1229
                                                                  • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1230
                                                                    • ActiveRecord::Relation::WhereClauseFactory#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause_factory.rb:4
                                                                • ActiveRecord::Relation::WhereClauseFactory#build $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause_factory.rb:9
                                                                  • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause_factory.rb:13
                                                                  • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause_factory.rb:13
                                                                  • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause_factory.rb:15
                                                                  • ActiveRecord::PredicateBuilder#resolve_column_aliases $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:12
                                                                    • ActiveRecord::TableMetadata#resolve_column_aliases $GemPath0/gems/activerecord-5.0.2/lib/active_record/table_metadata.rb:12
                                                                      • #<Class:Hash>#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/table_metadata.rb:15
                                                                      • Hash#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/table_metadata.rb:16
                                                                        • ActiveRecord::TableMetadata#block in resolve_column_aliases $GemPath0/gems/activerecord-5.0.2/lib/active_record/table_metadata.rb:16
                                                                          • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/table_metadata.rb:17
                                                                  • Comment.expand_hash_conditions_for_aggregates $GemPath0/gems/activerecord-5.0.2/lib/active_record/sanitization.rb:93
                                                                    • Hash#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/sanitization.rb:95
                                                                      • Comment.block in expand_hash_conditions_for_aggregates $GemPath0/gems/activerecord-5.0.2/lib/active_record/sanitization.rb:95
                                                                        • String#to_sym $GemPath0/gems/activerecord-5.0.2/lib/active_record/sanitization.rb:96
                                                                        • Comment.reflect_on_aggregation $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:61
                                                                          • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                            • Comment.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:62
                                                                  • Hash#stringify_keys! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/keys.rb:43
                                                                    • Hash#transform_keys! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/keys.rb:23
                                                                      • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/keys.rb:24
                                                                      • Hash#keys $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/keys.rb:25
                                                                      • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/keys.rb:25
                                                                        • Hash#block in transform_keys! $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/keys.rb:25
                                                                          • String#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/keys.rb:26
                                                                          • Hash#delete $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/hash/keys.rb:26
                                                                  • ActiveRecord::PredicateBuilder#create_binds $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:34
                                                                    • ActiveRecord::PredicateBuilder#convert_dot_notation_to_hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:138
                                                                      • Hash#select $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:139
                                                                        • ActiveRecord::PredicateBuilder#block in convert_dot_notation_to_hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:139
                                                                          • String#include? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:140
                                                                      • Hash#each_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:143
                                                                    • ActiveRecord::PredicateBuilder#create_binds_for_hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:96
                                                                      • Kernel#dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:97
                                                                        • Kernel#initialize_dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:97
                                                                          • Hash#initialize_copy $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:97
                                                                      • Hash#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:100
                                                                        • ActiveRecord::PredicateBuilder#block in create_binds_for_hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:100
                                                                          • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:102
                                                                          • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:106
                                                                          • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:108
                                                                          • ActiveRecord::PredicateBuilder#can_be_bound? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:158
                                                                            • Kernel#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:159
                                                                            • ActiveRecord::PredicateBuilder#handler_for $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:154
                                                                              • Enumerable#detect $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:155
                                                                                • Array#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:155
                                                                                  • ActiveRecord::PredicateBuilder#block in handler_for $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:155
                                                                                    • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:155
                                                                                  • ActiveRecord::PredicateBuilder#block in handler_for $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:155
                                                                                    • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:155
                                                                                  • ActiveRecord::PredicateBuilder#block in handler_for $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:155
                                                                                    • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:155
                                                                              • Array#last $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:155
                                                                            • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:160
                                                                  • ActiveRecord::PredicateBuilder#build_from_hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:29
                                                                    • ActiveRecord::PredicateBuilder#convert_dot_notation_to_hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:138
                                                                      • Hash#select $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:139
                                                                        • ActiveRecord::PredicateBuilder#block in convert_dot_notation_to_hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:139
                                                                          • String#include? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:140
                                                                      • Hash#each_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:143
                                                                    • ActiveRecord::PredicateBuilder#expand_from_hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:83
                                                                      • Enumerable#flat_map $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:86
                                                                        • Hash#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:86
                                                                          • ActiveRecord::PredicateBuilder#block in expand_from_hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:86
                                                                            • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:87
                                                                            • ActiveRecord::PredicateBuilder#expand $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:39
                                                                              • ActiveRecord::TableMetadata#associated_with? $GemPath0/gems/activerecord-5.0.2/lib/active_record/table_metadata.rb:40
                                                                                • Comment._reflect_on_association $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:113
                                                                                  • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                    • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                  • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:114
                                                                              • ActiveRecord::TableMetadata#arel_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/table_metadata.rb:24
                                                                                • Comment.arel_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:267
                                                                                  • Comment.attribute_alias? $GemPath0/gems/activemodel-5.0.2/lib/active_model/attribute_methods.rb:218
                                                                                    • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                      • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                    • String#to_s $GemPath0/gems/activemodel-5.0.2/lib/active_model/attribute_methods.rb:219
                                                                                    • Hash#key? $GemPath0/gems/activemodel-5.0.2/lib/active_model/attribute_methods.rb:219
                                                                                  • Arel::Table#[] $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:80
                                                                                    • #<Class:#<Class:0x007fde6b2d2638>>#new $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:81
                                                                                      • Struct#initialize $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:81
                                                                              • ActiveRecord::PredicateBuilder#build $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:75
                                                                                • ActiveRecord::PredicateBuilder#handler_for $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:154
                                                                                  • Enumerable#detect $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:155
                                                                                    • Array#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:155
                                                                                      • ActiveRecord::PredicateBuilder#block in handler_for $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:155
                                                                                        • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:155
                                                                                      • ActiveRecord::PredicateBuilder#block in handler_for $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:155
                                                                                        • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:155
                                                                                      • ActiveRecord::PredicateBuilder#block in handler_for $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:155
                                                                                        • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:155
                                                                                  • Array#last $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder.rb:155
                                                                                • ActiveRecord::PredicateBuilder::ArrayHandler#call $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder/array_handler.rb:8
                                                                                  • Array#map $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder/array_handler.rb:9
                                                                                    • ActiveRecord::PredicateBuilder::ArrayHandler#block in call $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder/array_handler.rb:9
                                                                                      • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder/array_handler.rb:9
                                                                                    • ActiveRecord::PredicateBuilder::ArrayHandler#block in call $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder/array_handler.rb:9
                                                                                      • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder/array_handler.rb:9
                                                                                  • Enumerable#partition $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder/array_handler.rb:10
                                                                                    • Array#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder/array_handler.rb:10
                                                                                      • Kernel#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder/array_handler.rb:10
                                                                                      • Kernel#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder/array_handler.rb:10
                                                                                  • Enumerable#partition $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder/array_handler.rb:14
                                                                                    • Array#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder/array_handler.rb:14
                                                                                      • ActiveRecord::PredicateBuilder::ArrayHandler#block in call $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder/array_handler.rb:14
                                                                                        • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder/array_handler.rb:14
                                                                                      • ActiveRecord::PredicateBuilder::ArrayHandler#block in call $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder/array_handler.rb:14
                                                                                        • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder/array_handler.rb:14
                                                                                  • Arel::Attributes::Attribute#in $GemPath0/gems/arel-7.1.4/lib/arel/predications.rb:47
                                                                                    • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/predications.rb:49
                                                                                    • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/predications.rb:51
                                                                                    • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/predications.rb:58
                                                                                    • Arel::Attributes::Attribute#quoted_array $GemPath0/gems/arel-7.1.4/lib/arel/predications.rb:227
                                                                                      • Array#map $GemPath0/gems/arel-7.1.4/lib/arel/predications.rb:228
                                                                                        • Arel::Attributes::Attribute#block in quoted_array $GemPath0/gems/arel-7.1.4/lib/arel/predications.rb:228
                                                                                          • Arel::Attributes::Attribute#quoted_node $GemPath0/gems/arel-7.1.4/lib/arel/predications.rb:223
                                                                                            • Arel::Nodes.build_quoted $GemPath0/gems/arel-7.1.4/lib/arel/nodes/casted.rb:30
                                                                                              • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/nodes/casted.rb:32
                                                                                              • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/nodes/casted.rb:32
                                                                                              • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/nodes/casted.rb:32
                                                                                              • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/nodes/casted.rb:32
                                                                                              • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/nodes/casted.rb:32
                                                                                              • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/nodes/casted.rb:32
                                                                                              • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/nodes/casted.rb:36
                                                                                              • Class#new $GemPath0/gems/arel-7.1.4/lib/arel/nodes/casted.rb:37
                                                                                                • Arel::Nodes::Casted#initialize $GemPath0/gems/arel-7.1.4/lib/arel/nodes/casted.rb:5
                                                                                                  • BasicObject#initialize $GemPath0/gems/arel-7.1.4/lib/arel/nodes/casted.rb:8
                                                                                        • Arel::Attributes::Attribute#block in quoted_array $GemPath0/gems/arel-7.1.4/lib/arel/predications.rb:228
                                                                                          • Arel::Attributes::Attribute#quoted_node $GemPath0/gems/arel-7.1.4/lib/arel/predications.rb:223
                                                                                            • Arel::Nodes.build_quoted $GemPath0/gems/arel-7.1.4/lib/arel/nodes/casted.rb:30
                                                                                              • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/nodes/casted.rb:32
                                                                                              • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/nodes/casted.rb:32
                                                                                              • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/nodes/casted.rb:32
                                                                                              • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/nodes/casted.rb:32
                                                                                              • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/nodes/casted.rb:32
                                                                                              • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/nodes/casted.rb:32
                                                                                              • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/nodes/casted.rb:36
                                                                                              • Class#new $GemPath0/gems/arel-7.1.4/lib/arel/nodes/casted.rb:37
                                                                                                • Arel::Nodes::Casted#initialize $GemPath0/gems/arel-7.1.4/lib/arel/nodes/casted.rb:5
                                                                                                  • BasicObject#initialize $GemPath0/gems/arel-7.1.4/lib/arel/nodes/casted.rb:8
                                                                                    • Class#new $GemPath0/gems/arel-7.1.4/lib/arel/predications.rb:59
                                                                                      • Arel::Nodes::In#initialize $GemPath0/gems/arel-7.1.4/lib/arel/nodes/binary.rb:6
                                                                                        • BasicObject#initialize $GemPath0/gems/arel-7.1.4/lib/arel/nodes/binary.rb:7
                                                                                  • Array#map $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder/array_handler.rb:27
                                                                                  • Array#unshift $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder/array_handler.rb:28
                                                                                  • Enumerable#inject $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder/array_handler.rb:29
                                                                                    • Array#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/predicate_builder/array_handler.rb:29
                                                                  • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause_factory.rb:30
                                                                    • ActiveRecord::Relation::WhereClause#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:8
                                                                • ActiveRecord::Relation::WhereClause#+ $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:13
                                                                  • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:14
                                                                    • ActiveRecord::Relation::WhereClause#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:8
                                                                • Comment::ActiveRecord_Relation#where_clause= $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:94
                                                                  • Comment::ActiveRecord_Relation#assert_mutability! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:954
                                                        • Comment::ActiveRecord_Relation#load $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:582
                                                          • Comment::ActiveRecord_Relation#exec_queries $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:701
                                                            • Comment::ActiveRecord_Relation#eager_loading? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:637
                                                              • Comment::ActiveRecord_Relation#eager_load_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.rb:639
                                                              • Comment::ActiveRecord_Relation#includes_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.rb:640
                                                            • Comment::ActiveRecord_Relation#arel $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:948
                                                              • Comment::ActiveRecord_Relation#build_arel $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:959
                                                                • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:960
                                                                  • Arel::SelectManager#initialize $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:9
                                                                    • Arel::SelectManager#initialize $GemPath0/gems/arel-7.1.4/lib/arel/tree_manager.rb:11
                                                                    • Class#new $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:11
                                                                      • Class#new $GemPath0/gems/arel-7.1.4/lib/arel/nodes/select_statement.rb:7
                                                                        • Arel::Nodes::SelectCore#initialize $GemPath0/gems/arel-7.1.4/lib/arel/nodes/select_core.rb:7
                                                                          • BasicObject#initialize $GemPath0/gems/arel-7.1.4/lib/arel/nodes/select_core.rb:8
                                                                          • Class#new $GemPath0/gems/arel-7.1.4/lib/arel/nodes/select_core.rb:9
                                                                            • Arel::Nodes::JoinSource#initialize $GemPath0/gems/arel-7.1.4/lib/arel/nodes/join_source.rb:9
                                                                              • Arel::Nodes::JoinSource#initialize $GemPath0/gems/arel-7.1.4/lib/arel/nodes/binary.rb:6
                                                                                • BasicObject#initialize $GemPath0/gems/arel-7.1.4/lib/arel/nodes/binary.rb:7
                                                                      • Arel::Nodes::SelectStatement#initialize $GemPath0/gems/arel-7.1.4/lib/arel/nodes/select_statement.rb:7
                                                                        • BasicObject#initialize $GemPath0/gems/arel-7.1.4/lib/arel/nodes/select_statement.rb:8
                                                                    • Array#last $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:12
                                                                    • Arel::SelectManager#from $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:87
                                                                      • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:88
                                                                      • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:91
                                                                • Comment::ActiveRecord_Relation#joins_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:60
                                                                • Comment::ActiveRecord_Relation#left_outer_joins_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:60
                                                                • Comment::ActiveRecord_Relation#where_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:90
                                                                • ActiveRecord::Relation::WhereClause#empty? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:6
                                                                  • Array#empty? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:6
                                                                • Comment::ActiveRecord_Relation#where_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:90
                                                                • ActiveRecord::Relation::WhereClause#ast $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:69
                                                                  • ActiveRecord::Relation::WhereClause#predicates_with_wrapped_sql_literals $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:151
                                                                    • ActiveRecord::Relation::WhereClause#non_empty_predicates $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:162
                                                                      • Array#- $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:163
                                                                        • Arel::Nodes::In#hash $GemPath0/gems/arel-7.1.4/lib/arel/nodes/binary.rb:18
                                                                          • Kernel#class $GemPath0/gems/arel-7.1.4/lib/arel/nodes/binary.rb:19
                                                                          • Array#hash $GemPath0/gems/arel-7.1.4/lib/arel/nodes/binary.rb:19
                                                                            • Kernel#hash $GemPath0/gems/arel-7.1.4/lib/arel/nodes/binary.rb:19
                                                                            • Struct#hash $GemPath0/gems/arel-7.1.4/lib/arel/nodes/binary.rb:19
                                                                              • Kernel#hash $GemPath0/gems/arel-7.1.4/lib/arel/nodes/binary.rb:19
                                                                              • Arel::Table#hash $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:84
                                                                                • String#hash $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:88
                                                                              • String#hash $GemPath0/gems/arel-7.1.4/lib/arel/nodes/binary.rb:19
                                                                            • Array#hash $GemPath0/gems/arel-7.1.4/lib/arel/nodes/binary.rb:19
                                                                              • Arel::Nodes::Casted#hash $GemPath0/gems/arel-7.1.4/lib/arel/nodes/casted.rb:13
                                                                                • Kernel#class $GemPath0/gems/arel-7.1.4/lib/arel/nodes/casted.rb:14
                                                                                • Array#hash $GemPath0/gems/arel-7.1.4/lib/arel/nodes/casted.rb:14
                                                                                  • Kernel#hash $GemPath0/gems/arel-7.1.4/lib/arel/nodes/casted.rb:14
                                                                                  • Kernel#hash $GemPath0/gems/arel-7.1.4/lib/arel/nodes/casted.rb:14
                                                                                  • Struct#hash $GemPath0/gems/arel-7.1.4/lib/arel/nodes/casted.rb:14
                                                                                    • Kernel#hash $GemPath0/gems/arel-7.1.4/lib/arel/nodes/casted.rb:14
                                                                                    • Arel::Table#hash $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:84
                                                                                      • String#hash $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:88
                                                                                    • String#hash $GemPath0/gems/arel-7.1.4/lib/arel/nodes/casted.rb:14
                                                                              • Arel::Nodes::Casted#hash $GemPath0/gems/arel-7.1.4/lib/arel/nodes/casted.rb:13
                                                                                • Kernel#class $GemPath0/gems/arel-7.1.4/lib/arel/nodes/casted.rb:14
                                                                                • Array#hash $GemPath0/gems/arel-7.1.4/lib/arel/nodes/casted.rb:14
                                                                                  • Kernel#hash $GemPath0/gems/arel-7.1.4/lib/arel/nodes/casted.rb:14
                                                                                  • Kernel#hash $GemPath0/gems/arel-7.1.4/lib/arel/nodes/casted.rb:14
                                                                                  • Struct#hash $GemPath0/gems/arel-7.1.4/lib/arel/nodes/casted.rb:14
                                                                                    • Kernel#hash $GemPath0/gems/arel-7.1.4/lib/arel/nodes/casted.rb:14
                                                                                    • Arel::Table#hash $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:84
                                                                                      • String#hash $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:88
                                                                                    • String#hash $GemPath0/gems/arel-7.1.4/lib/arel/nodes/casted.rb:14
                                                                    • Array#map $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:152
                                                                      • ActiveRecord::Relation::WhereClause#block in predicates_with_wrapped_sql_literals $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:152
                                                                        • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:153
                                                                  • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:70
                                                                    • Arel::Nodes::And#initialize $GemPath0/gems/arel-7.1.4/lib/arel/nodes/and.rb:6
                                                                      • BasicObject#initialize $GemPath0/gems/arel-7.1.4/lib/arel/nodes/and.rb:7
                                                                • Arel::SelectManager#where $GemPath0/gems/arel-7.1.4/lib/arel/tree_manager.rb:33
                                                                  • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/tree_manager.rb:34
                                                                • Comment::ActiveRecord_Relation#having_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:90
                                                                • ActiveRecord::Relation::WhereClause#empty? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:6
                                                                  • Array#empty? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/where_clause.rb:6
                                                                • Comment::ActiveRecord_Relation#limit_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:73
                                                                • Comment::ActiveRecord_Relation#offset_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:73
                                                                • Comment::ActiveRecord_Relation#group_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:60
                                                                • Comment::ActiveRecord_Relation#build_order $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1150
                                                                  • Comment::ActiveRecord_Relation#order_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:60
                                                                  • Array#uniq $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1151
                                                                  • Array#reject! $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1152
                                                                • Comment::ActiveRecord_Relation#build_select $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:1096
                                                                  • Comment::ActiveRecord_Relation#select_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:1097
                                                                  • Comment.arel_table $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:253
                                                                  • Arel.star $GemPath0/gems/arel-7.1.4/lib/arel.rb:30
                                                                    • Arel.sql $GemPath0/gems/arel-7.1.4/lib/arel.rb:26
                                                                      • Class#new $GemPath0/gems/arel-7.1.4/lib/arel.rb:27
                                                                        • String#initialize $GemPath0/gems/arel-7.1.4/lib/arel.rb:27
                                                                  • Arel::Table#[] $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:80
                                                                    • #<Class:#<Class:0x007fde6b2d2638>>#new $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:81
                                                                      • Struct#initialize $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:81
                                                                  • Arel::SelectManager#project $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:132
                                                                    • Array#map $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:135
                                                                      • Arel::SelectManager#block in project $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:135
                                                                        • Kernel#class $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:136
                                                                        • Array#include? $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:136
                                                                    • Array#concat $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:135
                                                                • Comment::ActiveRecord_Relation#distinct_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:73
                                                                • Arel::SelectManager#distinct $GemPath0/gems/arel-7.1.4/lib/arel/select_manager.rb:149
                                                                • Comment::ActiveRecord_Relation#from_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:90
                                                                • ActiveRecord::Relation::FromClause#empty? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/from_clause.rb:23
                                                                  • NilClass#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/from_clause.rb:24
                                                                • Comment::ActiveRecord_Relation#lock_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:73
                                                            • Comment::ActiveRecord_Relation#bound_attributes $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:101
                                                              • Comment::ActiveRecord_Relation#limit_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:73
                                                              • Comment::ActiveRecord_Relation#offset_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:73
                                                              • Comment::ActiveRecord_Relation#connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:43
                                                                • Comment.connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:90
                                                                  • Comment.retrieve_connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:127
                                                                    • Comment.connection_handler $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:121
                                                                      • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-5.0.2/lib/active_record/runtime_registry.rb:18
                                                                        • ActiveRecord::RuntimeRegistry.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
                                                                      • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                        • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                    • Comment.connection_specification_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:98
                                                                      • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:100
                                                                      • ApplicationRecord.connection_specification_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:98
                                                                        • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:100
                                                                        • ActiveRecord::Base.connection_specification_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:98
                                                                          • Kernel#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:99
                                                                    • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:880
                                                                      • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:916
                                                                        • ActiveRecord::ConnectionAdapters::ConnectionHandler#owner_to_pool $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:933
                                                                          • #<Class:Process>#pid $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:934
                                                                          • 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
                                                                        • Concurrent::Map#fetch $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:118
                                                                          • Concurrent::Map#get_or_default $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:109
                                                                            • Hash#fetch $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:110
                                                                      • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:363
                                                                        • #<Class:Thread>#current $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:364
                                                                        • ActiveRecord::ConnectionAdapters::ConnectionPool#connection_cache_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:585
                                                                        • 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
                                                                            • Kernel#hash $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:20
                                                              • Comment::ActiveRecord_Relation#from_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:90
                                                              • ActiveRecord::Relation::FromClause#binds $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/from_clause.rb:11
                                                                • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/from_clause.rb:12
                                                              • Comment::ActiveRecord_Relation#arel $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:948
                                                              • Comment::ActiveRecord_Relation#where_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:90
                                                              • Comment::ActiveRecord_Relation#having_clause $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:90
                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#combine_bind_parameters $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract_adapter.rb:480
                                                            • Comment.find_by_sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:38
                                                              • Comment.connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:90
                                                                • Comment.retrieve_connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:127
                                                                  • Comment.connection_handler $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:121
                                                                    • ActiveRecord::RuntimeRegistry.connection_handler $GemPath0/gems/activerecord-5.0.2/lib/active_record/runtime_registry.rb:18
                                                                      • ActiveRecord::RuntimeRegistry.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
                                                                    • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                      • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                  • Comment.connection_specification_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:98
                                                                    • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:100
                                                                    • ApplicationRecord.connection_specification_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:98
                                                                      • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:100
                                                                      • ActiveRecord::Base.connection_specification_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:98
                                                                        • Kernel#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_handling.rb:99
                                                                  • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:880
                                                                    • ActiveRecord::ConnectionAdapters::ConnectionHandler#retrieve_connection_pool $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:916
                                                                      • ActiveRecord::ConnectionAdapters::ConnectionHandler#owner_to_pool $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:933
                                                                        • #<Class:Process>#pid $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:934
                                                                        • 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
                                                                      • Concurrent::Map#fetch $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/map.rb:118
                                                                        • Concurrent::Map#get_or_default $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:109
                                                                          • Hash#fetch $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:110
                                                                    • ActiveRecord::ConnectionAdapters::ConnectionPool#connection $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:363
                                                                      • #<Class:Thread>#current $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:364
                                                                      • ActiveRecord::ConnectionAdapters::ConnectionPool#connection_cache_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:585
                                                                      • 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
                                                                          • Kernel#hash $GemPath0/gems/concurrent-ruby-1.0.5/lib/concurrent/collection/map/non_concurrent_map_backend.rb:20
                                                              • Comment.sanitize_sql_for_conditions $GemPath0/gems/activerecord-5.0.2/lib/active_record/sanitization.rb:29
                                                                • Arel::SelectManager#blank? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:14
                                                                  • Kernel#respond_to? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:15
                                                                • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/sanitization.rb:33
                                                              • Module#name $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:39
                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#select_all $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/query_cache.rb:89
                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#select_all $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:30
                                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#binds_from_relation $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:389
                                                                    • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:390
                                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#to_sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:10
                                                                    • Kernel#respond_to? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:11
                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#collector $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract_adapter.rb:144
                                                                      • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract_adapter.rb:146
                                                                        • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#initialize $GemPath0/gems/arel-7.1.4/lib/arel/collectors/sql_string.rb:8
                                                                          • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#initialize $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:4
                                                                    • Arel::Visitors::SQLite#accept $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/determine_if_preparable_visitor.rb:6
                                                                      • Arel::Visitors::SQLite#accept $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:6
                                                                        • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:12
                                                                          • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-7.1.4/lib/arel/visitors/visitor.rb:24
                                                                          • Kernel#class $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                                                          • Kernel#hash $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                                                          • Arel::Visitors::SQLite#visit_Arel_Nodes_SelectStatement $GemPath0/gems/arel-7.1.4/lib/arel/visitors/sqlite.rb:11
                                                                            • Arel::Visitors::SQLite#visit_Arel_Nodes_SelectStatement $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:209
                                                                              • Enumerable#inject $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:215
                                                                                • Array#each $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:215
                                                                                  • Arel::Visitors::SQLite#block in visit_Arel_Nodes_SelectStatement $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:215
                                                                                    • Arel::Visitors::SQLite#visit_Arel_Nodes_SelectCore $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:239
                                                                                      • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:12
                                                                                      • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:813
                                                                                      • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:813
                                                                                      • Arel::Visitors::SQLite#collect_nodes_for $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:264
                                                                                        • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:12
                                                                                        • Enumerable#each_with_index $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:268
                                                                                          • Array#each $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:268
                                                                                            • Arel::Visitors::SQLite#block in collect_nodes_for $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:268
                                                                                              • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:12
                                                                                                • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-7.1.4/lib/arel/visitors/visitor.rb:24
                                                                                                • Kernel#class $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                                                                                • Kernel#hash $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                                                                                • Arel::Visitors::SQLite#visit_Arel_Attributes_Attribute $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:725
                                                                                                  • #<Class:0x007fde6b2d2638>#relation $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:726
                                                                                                  • #<Class:0x007fde6b2d2638>#relation $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:726
                                                                                                  • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:803
                                                                                                    • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:804
                                                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:90
                                                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3/quoting.rb:13
                                                                                                  • #<Class:0x007fde6b2d2638>#name $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:727
                                                                                                  • Arel::Visitors::SQLite#quote_column_name $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:808
                                                                                                    • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:809
                                                                                                  • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:12
                                                                                      • Arel::Nodes::JoinSource#empty? $GemPath0/gems/arel-7.1.4/lib/arel/nodes/join_source.rb:13
                                                                                      • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:12
                                                                                      • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:12
                                                                                        • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-7.1.4/lib/arel/visitors/visitor.rb:24
                                                                                        • Kernel#class $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                                                                        • Kernel#hash $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                                                                        • Arel::Visitors::SQLite#visit_Arel_Nodes_JoinSource $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:542
                                                                                          • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:12
                                                                                            • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-7.1.4/lib/arel/visitors/visitor.rb:24
                                                                                            • Kernel#class $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                                                                            • Kernel#hash $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                                                                            • Arel::Visitors::SQLite#visit_Arel_Table $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:607
                                                                                              • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:803
                                                                                                • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:804
                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:90
                                                                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3/quoting.rb:13
                                                                                              • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:12
                                                                                          • Array#any? $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:546
                                                                                      • Arel::Visitors::SQLite#collect_nodes_for $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:264
                                                                                        • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:12
                                                                                        • Enumerable#each_with_index $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:268
                                                                                          • Array#each $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:268
                                                                                            • Arel::Visitors::SQLite#block in collect_nodes_for $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:268
                                                                                              • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:12
                                                                                                • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-7.1.4/lib/arel/visitors/visitor.rb:24
                                                                                                • Kernel#class $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                                                                                • Kernel#hash $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                                                                                • Arel::Visitors::SQLite#visit_Arel_Nodes_And $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:636
                                                                                                  • Arel::Visitors::SQLite#inject_join $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:819
                                                                                                    • Enumerable#each_with_index $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:821
                                                                                                    • Enumerable#inject $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:821
                                                                                                      • Enumerator#each $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:821
                                                                                                        • Enumerable#each_with_index $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:821
                                                                                                          • Array#each $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:821
                                                                                                            • Arel::Visitors::SQLite#block in inject_join $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:821
                                                                                                              • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:12
                                                                                                                • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-7.1.4/lib/arel/visitors/visitor.rb:24
                                                                                                                • Kernel#class $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                                                                                                • Kernel#hash $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                                                                                                • Arel::Visitors::SQLite#visit_Arel_Nodes_In $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/determine_if_preparable_visitor.rb:11
                                                                                                                  • Arel::Visitors::SQLite#visit_Arel_Nodes_In $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:615
                                                                                                                    • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:616
                                                                                                                    • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:12
                                                                                                                      • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-7.1.4/lib/arel/visitors/visitor.rb:24
                                                                                                                      • Kernel#class $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                                                                                                      • Kernel#hash $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                                                                                                      • Arel::Visitors::SQLite#visit_Arel_Attributes_Attribute $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:725
                                                                                                                        • #<Class:0x007fde6b2d2638>#relation $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:726
                                                                                                                        • #<Class:0x007fde6b2d2638>#relation $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:726
                                                                                                                        • Arel::Visitors::SQLite#quote_table_name $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:803
                                                                                                                          • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:804
                                                                                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_table_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:90
                                                                                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3/quoting.rb:13
                                                                                                                        • #<Class:0x007fde6b2d2638>#name $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:727
                                                                                                                        • Arel::Visitors::SQLite#quote_column_name $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:808
                                                                                                                          • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:809
                                                                                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote_column_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3/quoting.rb:13
                                                                                                                        • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                    • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                    • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:12
                                                                                                                      • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-7.1.4/lib/arel/visitors/visitor.rb:24
                                                                                                                      • Kernel#class $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                                                                                                      • Kernel#hash $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                                                                                                      • Arel::Visitors::SQLite#visit_Array $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:790
                                                                                                                        • Arel::Visitors::SQLite#inject_join $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:819
                                                                                                                          • Enumerable#each_with_index $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:821
                                                                                                                          • Enumerable#inject $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:821
                                                                                                                            • Enumerator#each $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:821
                                                                                                                              • Enumerable#each_with_index $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:821
                                                                                                                                • Array#each $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:821
                                                                                                                                  • Arel::Visitors::SQLite#block in inject_join $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:821
                                                                                                                                    • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                      • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-7.1.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                      • Kernel#class $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                      • Kernel#hash $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                      • Arel::Visitors::SQLite#visit_Arel_Nodes_Casted $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:156
                                                                                                                                        • Arel::Visitors::SQLite#quoted $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:747
                                                                                                                                          • Arel::Attributes::Attribute#able_to_type_cast? $GemPath0/gems/arel-7.1.4/lib/arel/attributes/attribute.rb:20
                                                                                                                                            • #<Class:0x007fde6b2d2638>#relation $GemPath0/gems/arel-7.1.4/lib/arel/attributes/attribute.rb:21
                                                                                                                                            • Arel::Table#able_to_type_cast? $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:102
                                                                                                                                              • Kernel#nil? $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:103
                                                                                                                                          • Arel::Attributes::Attribute#type_cast_for_database $GemPath0/gems/arel-7.1.4/lib/arel/attributes/attribute.rb:16
                                                                                                                                            • #<Class:0x007fde6b2d2638>#relation $GemPath0/gems/arel-7.1.4/lib/arel/attributes/attribute.rb:17
                                                                                                                                            • #<Class:0x007fde6b2d2638>#name $GemPath0/gems/arel-7.1.4/lib/arel/attributes/attribute.rb:17
                                                                                                                                            • Arel::Table#type_cast_for_database $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:98
                                                                                                                                              • ActiveRecord::TypeCaster::Map#type_cast_for_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/type_caster/map.rb:8
                                                                                                                                                • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/type_caster/map.rb:9
                                                                                                                                                • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/type_caster/map.rb:10
                                                                                                                                                • Comment.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                                                                                                                  • Comment.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                                                                                                                    • Comment.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                                                                                                      • Comment.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                                                                                                                • ActiveModel::Type::Integer#serialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:24
                                                                                                                                                  • ActiveModel::Type::Integer#cast $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/numeric.rb:5
                                                                                                                                                    • TrueClass#=== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/numeric.rb:7
                                                                                                                                                      • BasicObject#== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/numeric.rb:7
                                                                                                                                                    • FalseClass#=== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/numeric.rb:8
                                                                                                                                                      • BasicObject#== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/numeric.rb:8
                                                                                                                                                    • Module#=== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/numeric.rb:9
                                                                                                                                                    • ActiveModel::Type::Integer#cast $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:35
                                                                                                                                                      • Kernel#nil? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:36
                                                                                                                                                      • ActiveModel::Type::Integer#cast_value $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:38
                                                                                                                                                        • Integer#to_i $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:43
                                                                                                                                                  • ActiveModel::Type::Integer#ensure_in_range $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:47
                                                                                                                                                    • Range#cover? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:48
                                                                                                                                                      • Fixnum#<=> $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:48
                                                                                                                                                      • Fixnum#<=> $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:48
                                                                                                                                          • Arel::Visitors::SQLite#quote $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:795
                                                                                                                                            • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:796
                                                                                                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:9
                                                                                                                                              • Kernel#respond_to? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:11
                                                                                                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_quote $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3/quoting.rb:23
                                                                                                                                                • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3/quoting.rb:24
                                                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_quote $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:164
                                                                                                                                                  • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:166
                                                                                                                                                  • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:166
                                                                                                                                                  • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:166
                                                                                                                                                  • TrueClass#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:168
                                                                                                                                                    • BasicObject#== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:168
                                                                                                                                                  • FalseClass#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:169
                                                                                                                                                    • BasicObject#== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:169
                                                                                                                                                  • NilClass#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:170
                                                                                                                                                    • BasicObject#== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:170
                                                                                                                                                  • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:172
                                                                                                                                                  • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:173
                                                                                                                                                  • Fixnum#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:103
                                                                                                                                                    • NilClass#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:105
                                                                                                                                                    • Fixnum#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:106
                                                                                                                                        • String#to_s $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:157
                                                                                                                                        • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                    • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                                  • Arel::Visitors::SQLite#block in inject_join $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:821
                                                                                                                                    • Arel::Visitors::SQLite#visit $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:12
                                                                                                                                      • Arel::Visitors::SQLite#dispatch $GemPath0/gems/arel-7.1.4/lib/arel/visitors/visitor.rb:24
                                                                                                                                      • Kernel#class $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                      • Kernel#hash $GemPath0/gems/arel-7.1.4/lib/arel/visitors/reduce.rb:13
                                                                                                                                      • Arel::Visitors::SQLite#visit_Arel_Nodes_Casted $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:156
                                                                                                                                        • Arel::Visitors::SQLite#quoted $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:747
                                                                                                                                          • Arel::Attributes::Attribute#able_to_type_cast? $GemPath0/gems/arel-7.1.4/lib/arel/attributes/attribute.rb:20
                                                                                                                                            • #<Class:0x007fde6b2d2638>#relation $GemPath0/gems/arel-7.1.4/lib/arel/attributes/attribute.rb:21
                                                                                                                                            • Arel::Table#able_to_type_cast? $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:102
                                                                                                                                              • Kernel#nil? $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:103
                                                                                                                                          • Arel::Attributes::Attribute#type_cast_for_database $GemPath0/gems/arel-7.1.4/lib/arel/attributes/attribute.rb:16
                                                                                                                                            • #<Class:0x007fde6b2d2638>#relation $GemPath0/gems/arel-7.1.4/lib/arel/attributes/attribute.rb:17
                                                                                                                                            • #<Class:0x007fde6b2d2638>#name $GemPath0/gems/arel-7.1.4/lib/arel/attributes/attribute.rb:17
                                                                                                                                            • Arel::Table#type_cast_for_database $GemPath0/gems/arel-7.1.4/lib/arel/table.rb:98
                                                                                                                                              • ActiveRecord::TypeCaster::Map#type_cast_for_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/type_caster/map.rb:8
                                                                                                                                                • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/type_caster/map.rb:9
                                                                                                                                                • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/type_caster/map.rb:10
                                                                                                                                                • Comment.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                                                                                                                  • Comment.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                                                                                                                    • Comment.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                                                                                                      • Comment.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                                                                                                                • ActiveModel::Type::Integer#serialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:24
                                                                                                                                                  • ActiveModel::Type::Integer#cast $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/numeric.rb:5
                                                                                                                                                    • TrueClass#=== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/numeric.rb:7
                                                                                                                                                      • BasicObject#== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/numeric.rb:7
                                                                                                                                                    • FalseClass#=== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/numeric.rb:8
                                                                                                                                                      • BasicObject#== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/numeric.rb:8
                                                                                                                                                    • Module#=== $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/helpers/numeric.rb:9
                                                                                                                                                    • ActiveModel::Type::Integer#cast $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:35
                                                                                                                                                      • Kernel#nil? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/value.rb:36
                                                                                                                                                      • ActiveModel::Type::Integer#cast_value $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:38
                                                                                                                                                        • Integer#to_i $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:43
                                                                                                                                                  • ActiveModel::Type::Integer#ensure_in_range $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:47
                                                                                                                                                    • Range#cover? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:48
                                                                                                                                                      • Fixnum#<=> $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:48
                                                                                                                                                      • Fixnum#<=> $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:48
                                                                                                                                          • Arel::Visitors::SQLite#quote $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:795
                                                                                                                                            • Module#=== $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:796
                                                                                                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#quote $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:9
                                                                                                                                              • Kernel#respond_to? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:11
                                                                                                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_quote $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3/quoting.rb:23
                                                                                                                                                • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3/quoting.rb:24
                                                                                                                                                • ActiveRecord::ConnectionAdapters::SQLite3Adapter#_quote $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:164
                                                                                                                                                  • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:166
                                                                                                                                                  • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:166
                                                                                                                                                  • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:166
                                                                                                                                                  • TrueClass#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:168
                                                                                                                                                    • BasicObject#== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:168
                                                                                                                                                  • FalseClass#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:169
                                                                                                                                                    • BasicObject#== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:169
                                                                                                                                                  • NilClass#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:170
                                                                                                                                                    • BasicObject#== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:170
                                                                                                                                                  • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:172
                                                                                                                                                  • Module#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/quoting.rb:173
                                                                                                                                                  • Fixnum#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:103
                                                                                                                                                    • NilClass#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:105
                                                                                                                                                    • Fixnum#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:106
                                                                                                                                        • String#to_s $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:157
                                                                                                                                        • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:12
                                                                                                                    • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#<< $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:12
                                                                                      • Arel::Visitors::SQLite#collect_nodes_for $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:264
                                                                                      • Arel::Visitors::SQLite#collect_nodes_for $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:264
                                                                              • Arel::Visitors::SQLite#visit_Arel_Nodes_SelectOptions $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:233
                                                                                • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:813
                                                                                • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:813
                                                                                • Arel::Visitors::SQLite#maybe_visit $GemPath0/gems/arel-7.1.4/lib/arel/visitors/to_sql.rb:813
                                                                    • Kernel#dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:13
                                                                      • Kernel#initialize_dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:13
                                                                        • Array#initialize_copy $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:13
                                                                    • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#compile $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract_adapter.rb:139
                                                                      • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#compile $GemPath0/gems/arel-7.1.4/lib/arel/collectors/sql_string.rb:19
                                                                        • ActiveRecord::ConnectionAdapters::AbstractAdapter::SQLString#value $GemPath0/gems/arel-7.1.4/lib/arel/collectors/plain_string.rb:8
                                                                  • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:33
                                                                  • ActiveRecord::ConnectionAdapters::SQLite3Adapter#select $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:372
                                                                    • ActiveRecord::ConnectionAdapters::SQLite3Adapter#exec_query $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3_adapter.rb:190
                                                                      • Array#map $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3_adapter.rb:191
                                                                      • ActiveRecord::ConnectionAdapters::SQLite3Adapter#log $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract_adapter.rb:582
                                                                        • Kernel#object_id $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract_adapter.rb:587
                                                                        • ActiveSupport::Notifications::Instrumenter#instrument $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:17
                                                                          • ActiveSupport::Notifications::Instrumenter#start $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:32
                                                                            • ActiveSupport::Notifications::Fanout#start $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:41
                                                                              • ActiveSupport::Notifications::Fanout#listeners_for $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:53
                                                                                • 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
                                                                              • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:42
                                                                                • ActiveSupport::Notifications::Fanout#block in start $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:42
                                                                                  • ActiveSupport::Notifications::Fanout::Subscribers::Evented#start $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:97
                                                                                    • ActiveRecord::LogSubscriber#start $GemPath0/gems/activesupport-5.0.2/lib/active_support/log_subscriber.rb:78
                                                                                      • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:90
                                                                                        • ActiveRecord::Base.logger $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                      • ActiveRecord::LogSubscriber#start $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:80
                                                                                        • #<Class:Time>#now $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:81
                                                                                          • Time#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:81
                                                                                            • Fixnum#+ $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:81
                                                                                        • Class#new $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:81
                                                                                          • ActiveSupport::Notifications::Event#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:56
                                                                                            • Kernel#dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:58
                                                                                              • Kernel#initialize_dup $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:58
                                                                                                • Hash#initialize_copy $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:58
                                                                                        • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:100
                                                                                          • ActiveSupport::SubscriberQueueRegistry.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
                                                                                          • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:116
                                                                                        • Array#last $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:82
                                                                                        • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:100
                                                                                          • ActiveSupport::SubscriberQueueRegistry.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
                                                                                          • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:116
                                                                                        • Array#push $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:85
                                                                                • ActiveSupport::Notifications::Fanout#block in start $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:42
                                                                                  • ActiveSupport::Notifications::Fanout::Subscribers::Evented#start $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:97
                                                                                    • ActiveRecord::ExplainSubscriber#start $GemPath0/gems/activerecord-5.0.2/lib/active_record/explain_subscriber.rb:6
                                                                          • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in log $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract_adapter.rb:589
                                                                            • ActiveRecord::ConnectionAdapters::SQLite3Adapter#block in exec_query $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3_adapter.rb:193
                                                                              • SQLite3::Database#prepare $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:90
                                                                                • Class#new $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:91
                                                                                  • SQLite3::Statement#initialize $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:91
                                                                                • Kernel#block_given? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/database.rb:92
                                                                              • SQLite3::Statement#columns $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:101
                                                                                • SQLite3::Statement#get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:135
                                                                                  • SQLite3::Statement#column_count $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                  • Class#new $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                    • Array#initialize $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                        • SQLite3::Statement#column_name $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:137
                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                        • SQLite3::Statement#column_name $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:137
                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                        • SQLite3::Statement#column_name $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:137
                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                        • SQLite3::Statement#column_name $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:137
                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                        • SQLite3::Statement#column_name $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:137
                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:136
                                                                                        • SQLite3::Statement#column_name $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:137
                                                                                  • SQLite3::Statement#column_count $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                  • Class#new $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                    • Array#initialize $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                        • SQLite3::Statement#column_decltype $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:140
                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                        • SQLite3::Statement#column_decltype $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:140
                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                        • SQLite3::Statement#column_decltype $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:140
                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                        • SQLite3::Statement#column_decltype $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:140
                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                        • SQLite3::Statement#column_decltype $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:140
                                                                                      • SQLite3::Statement#block in get_metadata $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:139
                                                                                        • SQLite3::Statement#column_decltype $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:140
                                                                              • ActiveRecord::ConnectionAdapters::SQLite3Adapter#without_prepared_statement? $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/abstract_adapter.rb:599
                                                                              • Enumerable#to_a $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3_adapter.rb:202
                                                                                • SQLite3::Statement#each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:106
                                                                                  • Kernel#loop $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                                                    • SQLite3::Statement#block in each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                                                      • SQLite3::Statement#step $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                        • SQLite3::Database#encoding $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                      • SQLite3::Statement#done? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:109
                                                                                    • SQLite3::Statement#block in each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                                                      • SQLite3::Statement#step $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                        • SQLite3::Database#encoding $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                      • SQLite3::Statement#done? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:109
                                                                                    • SQLite3::Statement#block in each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                                                      • SQLite3::Statement#step $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                        • SQLite3::Database#encoding $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                      • SQLite3::Statement#done? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:109
                                                                                    • SQLite3::Statement#block in each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                                                      • SQLite3::Statement#step $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                        • SQLite3::Database#encoding $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                      • SQLite3::Statement#done? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:109
                                                                                    • SQLite3::Statement#block in each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                                                      • SQLite3::Statement#step $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                        • SQLite3::Database#encoding $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                      • SQLite3::Statement#done? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:109
                                                                                    • SQLite3::Statement#block in each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                                                      • SQLite3::Statement#step $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                        • SQLite3::Database#encoding $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                      • SQLite3::Statement#done? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:109
                                                                                    • SQLite3::Statement#block in each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                                                      • SQLite3::Statement#step $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                        • SQLite3::Database#encoding $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                      • SQLite3::Statement#done? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:109
                                                                                    • SQLite3::Statement#block in each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                                                      • SQLite3::Statement#step $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                        • SQLite3::Database#encoding $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                      • SQLite3::Statement#done? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:109
                                                                                    • SQLite3::Statement#block in each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                                                      • SQLite3::Statement#step $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                        • SQLite3::Database#encoding $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                      • SQLite3::Statement#done? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:109
                                                                                    • SQLite3::Statement#block in each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                                                      • SQLite3::Statement#step $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                        • SQLite3::Database#encoding $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                      • SQLite3::Statement#done? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:109
                                                                                    • SQLite3::Statement#block in each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                                                      • SQLite3::Statement#step $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                        • SQLite3::Database#encoding $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                      • SQLite3::Statement#done? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:109
                                                                                    • SQLite3::Statement#block in each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                                                      • SQLite3::Statement#step $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                        • SQLite3::Database#encoding $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                      • SQLite3::Statement#done? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:109
                                                                                    • SQLite3::Statement#block in each $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:107
                                                                                      • SQLite3::Statement#step $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                        • SQLite3::Database#encoding $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:108
                                                                                      • SQLite3::Statement#done? $GemPath0/gems/sqlite3-1.3.13/lib/sqlite3/statement.rb:109
                                                                              • SQLite3::Statement#close $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3_adapter.rb:204
                                                                              • Array#to_a $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3_adapter.rb:217
                                                                              • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/connection_adapters/sqlite3_adapter.rb:217
                                                                                • ActiveRecord::Result#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:39
                                                                          • ActiveSupport::Notifications::Instrumenter#finish_with_state $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:41
                                                                            • ActiveSupport::Notifications::Fanout#finish $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:45
                                                                              • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:46
                                                                                • ActiveSupport::Notifications::Fanout#block in finish $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:46
                                                                                  • ActiveSupport::Notifications::Fanout::Subscribers::Evented#finish $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:101
                                                                                    • ActiveRecord::LogSubscriber#finish $GemPath0/gems/activesupport-5.0.2/lib/active_support/log_subscriber.rb:82
                                                                                      • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:90
                                                                                        • ActiveRecord::Base.logger $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                      • ActiveRecord::LogSubscriber#finish $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:88
                                                                                        • #<Class:Time>#now $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:89
                                                                                          • Time#initialize $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:89
                                                                                            • Fixnum#+ $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:89
                                                                                        • ActiveRecord::LogSubscriber#event_stack $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:100
                                                                                          • ActiveSupport::SubscriberQueueRegistry.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
                                                                                          • ActiveSupport::SubscriberQueueRegistry#get_queue $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:116
                                                                                        • Array#pop $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:90
                                                                                        • Hash#merge! $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:92
                                                                                        • String#split $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:94
                                                                                        • Array#first $GemPath0/gems/activesupport-5.0.2/lib/active_support/subscriber.rb:94
                                                                                        • ActiveRecord::LogSubscriber#sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:37
                                                                                          • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:38
                                                                                          • ActiveRecord::LogSubscriber.runtime $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:9
                                                                                            • ActiveRecord::RuntimeRegistry.sql_runtime $GemPath0/gems/activerecord-5.0.2/lib/active_record/runtime_registry.rb:18
                                                                                              • ActiveRecord::RuntimeRegistry.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
                                                                                          • ActiveSupport::Notifications::Event#duration $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:78
                                                                                            • Time#minus_with_coercion $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:258
                                                                                              • Kernel#respond_to? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:259
                                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:260
                                                                                              • Time#minus_with_duration $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:245
                                                                                                • ActiveSupport::Duration.=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/duration.rb:102
                                                                                                  • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/duration.rb:103
                                                                                                • Time#minus_without_duration $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:249
                                                                                                  • Fixnum#- $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:249
                                                                                                  • Numeric#quo $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:249
                                                                                                    • Fixnum#fdiv $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/time/calculations.rb:249
                                                                                          • ActiveRecord::LogSubscriber.runtime= $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:5
                                                                                            • ActiveRecord::RuntimeRegistry.sql_runtime= $GemPath0/gems/activerecord-5.0.2/lib/active_record/runtime_registry.rb:19
                                                                                              • ActiveRecord::RuntimeRegistry.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::LogSubscriber#logger $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:90
                                                                                            • ActiveRecord::Base.logger $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                          • ActiveSupport::Logger#debug? $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:92
                                                                                            • ActiveSupport::Logger#level $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:27
                                                                                              • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:15
                                                                                                • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:11
                                                                                                  • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:12
                                                                                                  • BasicObject#__id__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:12
                                                                                                • 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
                                                                                          • Array#include? $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:43
                                                                                          • ActiveSupport::Notifications::Event#duration $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:78
                                                                                          • Float#round $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:45
                                                                                          • Float#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:103
                                                                                            • NilClass#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:105
                                                                                            • Float#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:106
                                                                                          • ActiveRecord::LogSubscriber#colorize_payload_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:61
                                                                                            • String#blank? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:114
                                                                                              • Regexp#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:118
                                                                                            • ActiveRecord::LogSubscriber#color $GemPath0/gems/activesupport-5.0.2/lib/active_support/log_subscriber.rb:102
                                                                                              • ActiveRecord::LogSubscriber#colorize_logging $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:67
                                                                                              • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/log_subscriber.rb:104
                                                                                          • ActiveRecord::LogSubscriber#sql_color $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:69
                                                                                            • Regexp#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:71
                                                                                            • Regexp#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:73
                                                                                            • Regexp#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:73
                                                                                            • Regexp#=== $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:75
                                                                                          • ActiveRecord::LogSubscriber#color $GemPath0/gems/activesupport-5.0.2/lib/active_support/log_subscriber.rb:102
                                                                                            • ActiveRecord::LogSubscriber#colorize_logging $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:67
                                                                                            • Kernel#is_a? $GemPath0/gems/activesupport-5.0.2/lib/active_support/log_subscriber.rb:104
                                                                                          • NilClass#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:56
                                                                                          • ActiveRecord::LogSubscriber#debug $GemPath0/gems/activesupport-5.0.2/lib/active_support/log_subscriber.rb:92
                                                                                            • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:90
                                                                                              • ActiveRecord::Base.logger $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                            • ActiveRecord::LogSubscriber#logger $GemPath0/gems/activerecord-5.0.2/lib/active_record/log_subscriber.rb:90
                                                                                              • ActiveRecord::Base.logger $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:60
                                                                                            • ActiveSupport::Logger#debug /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:454
                                                                                              • ActiveSupport::Logger#block (2 levels) in broadcast $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:24
                                                                                                • ActiveSupport::Logger#block (2 levels) in broadcast $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:24
                                                                                                  • ActiveSupport::Logger#add $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:85
                                                                                                    • Kernel#nil? $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:86
                                                                                                    • ActiveSupport::Logger#level $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:27
                                                                                                      • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:15
                                                                                                        • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:11
                                                                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:12
                                                                                                          • BasicObject#__id__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:12
                                                                                                        • 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::Logger#add /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:419
                                                                                                      • Kernel#nil? /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:421
                                                                                                      • NilClass#nil? /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:425
                                                                                                      • Kernel#block_given? /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:426
                                                                                                      • ActiveSupport::Logger#format_severity /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:541
                                                                                                      • #<Class:Time>#now /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:434
                                                                                                        • Time#initialize /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:434
                                                                                                          • Fixnum#+ /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:434
                                                                                                      • ActiveSupport::Logger#format_message /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:545
                                                                                                        • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:101
                                                                                                          • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:102
                                                                                                      • Logger::LogDevice#write /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:643
                                                                                                        • Logger::LogDevice#mon_synchronize /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/monitor.rb:211
                                                                                                          • Logger::LogDevice#mon_enter /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/monitor.rb:185
                                                                                                            • #<Class:Thread>#current /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/monitor.rb:186
                                                                                                            • Thread::Mutex#lock /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/monitor.rb:187
                                                                                                            • #<Class:Thread>#current /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/monitor.rb:188
                                                                                                          • Logger::LogDevice#block in write /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:645
                                                                                                            • IO#write /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:654
                                                                                                          • Logger::LogDevice#mon_exit /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/monitor.rb:197
                                                                                                            • Logger::LogDevice#mon_check_owner /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/monitor.rb:247
                                                                                                              • #<Class:Thread>#current /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/monitor.rb:248
                                                                                                            • Thread::Mutex#unlock /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/monitor.rb:202
                                                                                                  • ActiveSupport::Logger#add $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:85
                                                                                                    • Kernel#nil? $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:86
                                                                                                    • ActiveSupport::Logger#level $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:27
                                                                                                      • ActiveSupport::Logger#local_level $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:15
                                                                                                        • ActiveSupport::Logger#local_log_id $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:11
                                                                                                          • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:12
                                                                                                          • BasicObject#__id__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger_thread_safe_level.rb:12
                                                                                                        • 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::Logger#add /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:419
                                                                                                      • Kernel#nil? /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:421
                                                                                                      • NilClass#nil? /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:425
                                                                                                      • Kernel#block_given? /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:426
                                                                                                      • ActiveSupport::Logger#format_severity /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:541
                                                                                                      • #<Class:Time>#now /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:434
                                                                                                        • Time#initialize /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:434
                                                                                                          • Fixnum#+ /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:434
                                                                                                      • ActiveSupport::Logger#format_message /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:545
                                                                                                        • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-5.0.2/lib/active_support/tagged_logging.rb:20
                                                                                                          • ActiveSupport::Logger::SimpleFormatter#tags_text $GemPath0/gems/activesupport-5.0.2/lib/active_support/tagged_logging.rb:51
                                                                                                            • ActiveSupport::Logger::SimpleFormatter#current_tags $GemPath0/gems/activesupport-5.0.2/lib/active_support/tagged_logging.rb:45
                                                                                                              • #<Class:Thread>#current $GemPath0/gems/activesupport-5.0.2/lib/active_support/tagged_logging.rb:48
                                                                                                              • Thread#[] $GemPath0/gems/activesupport-5.0.2/lib/active_support/tagged_logging.rb:48
                                                                                                            • Array#any? $GemPath0/gems/activesupport-5.0.2/lib/active_support/tagged_logging.rb:53
                                                                                                          • NilClass#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/tagged_logging.rb:21
                                                                                                          • ActiveSupport::Logger::SimpleFormatter#call $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:101
                                                                                                            • Module#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/logger.rb:102
                                                                                                      • Logger::LogDevice#write /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:643
                                                                                                        • Logger::LogDevice#mon_synchronize /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/monitor.rb:211
                                                                                                          • Logger::LogDevice#mon_enter /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/monitor.rb:185
                                                                                                            • #<Class:Thread>#current /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/monitor.rb:186
                                                                                                            • Thread::Mutex#lock /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/monitor.rb:187
                                                                                                            • #<Class:Thread>#current /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/monitor.rb:188
                                                                                                          • Logger::LogDevice#block in write /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:645
                                                                                                            • IO#write /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/logger.rb:654
                                                                                                          • Logger::LogDevice#mon_exit /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/monitor.rb:197
                                                                                                            • Logger::LogDevice#mon_check_owner /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/monitor.rb:247
                                                                                                              • #<Class:Thread>#current /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/monitor.rb:248
                                                                                                            • Thread::Mutex#unlock /home/z/.rbenv/versions/2.3.3/lib/ruby/2.3.0/monitor.rb:202
                                                                                • ActiveSupport::Notifications::Fanout#block in finish $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:46
                                                                                  • ActiveSupport::Notifications::Fanout::Subscribers::Evented#finish $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:101
                                                                                    • ActiveRecord::ExplainSubscriber#finish $GemPath0/gems/activerecord-5.0.2/lib/active_record/explain_subscriber.rb:10
                                                                                      • ActiveRecord::ExplainRegistry.collect? $GemPath0/gems/activesupport-5.0.2/lib/active_support/per_thread_registry.rb:53
                                                                                        • ActiveRecord::ExplainRegistry.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::ExplainRegistry#collect? $GemPath0/gems/activerecord-5.0.2/lib/active_record/explain_registry.rb:21
                                                              • Kernel#dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:40
                                                                • Kernel#initialize_dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:40
                                                                  • Hash#initialize_copy $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:40
                                                              • Comment.columns_hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:338
                                                                • Comment.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                  • Comment.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                              • Hash#each_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:41
                                                                • Comment.block in find_by_sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:41
                                                                  • Hash#delete $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:41
                                                                • Comment.block in find_by_sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:41
                                                                  • Hash#delete $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:41
                                                                • Comment.block in find_by_sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:41
                                                                  • Hash#delete $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:41
                                                                • Comment.block in find_by_sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:41
                                                                  • Hash#delete $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:41
                                                                • Comment.block in find_by_sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:41
                                                                  • Hash#delete $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:41
                                                                • Comment.block in find_by_sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:41
                                                                  • Hash#delete $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:41
                                                              • ActiveSupport::Notifications.instrumenter $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications.rb:185
                                                                • ActiveSupport::Notifications::InstrumentationRegistry.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
                                                                • ActiveSupport::Notifications::InstrumentationRegistry#instrumenter_for $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications.rb:205
                                                                  • Kernel#hash $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications.rb:206
                                                              • ActiveRecord::Result#length $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:46
                                                              • Module#name $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:46
                                                              • ActiveSupport::Notifications::Instrumenter#instrument $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:17
                                                                • ActiveSupport::Notifications::Instrumenter#start $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:32
                                                                  • ActiveSupport::Notifications::Fanout#start $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:41
                                                                    • ActiveSupport::Notifications::Fanout#listeners_for $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:53
                                                                      • 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
                                                                    • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:42
                                                                • Comment.block in find_by_sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:49
                                                                  • Enumerable#map $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:50
                                                                    • ActiveRecord::Result#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:50
                                                                      • Kernel#block_given? $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:51
                                                                      • ActiveRecord::Result#hash_rows $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:112
                                                                        • Array#map $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                                                                            • Kernel#dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                                                                              • Kernel#initialize_dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                                                                                • String#initialize_copy $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                                                                            • String#freeze $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                                                                            • Kernel#dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                                                                              • Kernel#initialize_dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                                                                                • String#initialize_copy $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                                                                            • String#freeze $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                                                                            • Kernel#dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                                                                              • Kernel#initialize_dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                                                                                • String#initialize_copy $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                                                                            • String#freeze $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                                                                            • Kernel#dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                                                                              • Kernel#initialize_dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                                                                                • String#initialize_copy $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                                                                            • String#freeze $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                                                                            • Kernel#dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                                                                              • Kernel#initialize_dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                                                                                • String#initialize_copy $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                                                                            • String#freeze $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                                                                            • Kernel#dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                                                                              • Kernel#initialize_dup $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                                                                                • String#initialize_copy $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                                                                            • String#freeze $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:117
                                                                        • Array#map $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:118
                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:118
                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:118
                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:118
                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:118
                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:118
                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:118
                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:118
                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:118
                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:118
                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:118
                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:118
                                                                          • ActiveRecord::Result#block in hash_rows $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:118
                                                                      • Array#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:52
                                                                        • ActiveRecord::Result#block in each $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:52
                                                                          • Comment.block (2 levels) in find_by_sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:50
                                                                            • Comment.instantiate $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:66
                                                                              • Comment.discriminate_class_for_record $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:161
                                                                                • Comment.using_single_table_inheritance? $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:169
                                                                                  • Comment.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                                                                    • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:272
                                                                                    • ApplicationRecord.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                                                                      • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:272
                                                                                      • ActiveRecord::Base.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                                                                  • NilClass#present? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:21
                                                                                    • NilClass#blank? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:52
                                                                                • Comment.discriminate_class_for_record $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:78
                                                                              • Comment.attributes_builder $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:330
                                                                              • ActiveRecord::AttributeSet::Builder#build_from_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:14
                                                                                • Hash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:15
                                                                                • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:19
                                                                                  • ActiveRecord::LazyAttributeHash#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:28
                                                                                • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:20
                                                                                  • ActiveRecord::AttributeSet#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:7
                                                                              • Comment.allocate $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:133
                                                                                • Comment.define_attribute_methods $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:55
                                                                                • Class#allocate $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:135
                                                                              • Comment#init_with $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:339
                                                                                • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:340
                                                                                • ActiveRecord::LegacyYamlAdapter.convert $GemPath0/gems/activerecord-5.0.2/lib/active_record/legacy_yaml_adapter.rb:3
                                                                                  • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/legacy_yaml_adapter.rb:4
                                                                                • Comment#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/aggregations.rb:22
                                                                                  • Comment#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:267
                                                                                    • Comment#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:539
                                                                                • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:347
                                                                                • Comment.define_attribute_methods $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:55
                                                                                • Kernel#block_given? $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:349
                                                                                • ActiveRecord::Associations::Preloader::HasMany#block in associated_records_by_owner $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:65
                                                                                  • ActiveRecord::Associations::Preloader::HasMany#owners_by_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:87
                                                                                    • Enumerable#each_with_object $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:89
                                                                                      • Array#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:89
                                                                                        • ActiveRecord::Associations::Preloader::HasMany#block in owners_by_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:89
                                                                                          • ActiveRecord::Associations::Preloader::HasMany#owner_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:10
                                                                                            • ActiveRecord::Reflection::HasManyReflection#active_record_primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:405
                                                                                          • Article#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:346
                                                                                            • Article#read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:50
                                                                                              • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:51
                                                                                              • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:52
                                                                                              • Article.primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/primary_key.rb:72
                                                                                              • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:52
                                                                                              • Article.primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/primary_key.rb:72
                                                                                              • Article#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                                                                • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                                                                • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                                                                  • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                                    • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                                                                  • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                                          • ActiveRecord::Associations::Preloader::HasMany#convert_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:100
                                                                                            • ActiveRecord::Associations::Preloader::HasMany#key_conversion_required? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:96
                                                                                              • ActiveRecord::Associations::Preloader::HasMany#association_key_type $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:108
                                                                                                • ActiveRecord::Associations::Preloader::HasMany#association_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:6
                                                                                                  • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                                • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:109
                                                                                                • Comment.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                                                                  • Comment.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                                                                    • Comment.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                                                      • Comment.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                                                                • ActiveModel::Type::Integer#type $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:15
                                                                                              • ActiveRecord::Associations::Preloader::HasMany#owner_key_type $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:112
                                                                                                • ActiveRecord::Associations::Preloader::HasMany#owner_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:10
                                                                                                  • ActiveRecord::Reflection::HasManyReflection#active_record_primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:405
                                                                                                • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:113
                                                                                                • Article.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                                                                  • Article.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                                                                    • Article.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                                                      • Article.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                                                                • ActiveModel::Type::Integer#type $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:15
                                                                                        • ActiveRecord::Associations::Preloader::HasMany#block in owners_by_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:89
                                                                                          • ActiveRecord::Associations::Preloader::HasMany#owner_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:10
                                                                                            • ActiveRecord::Reflection::HasManyReflection#active_record_primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:405
                                                                                          • Article#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:346
                                                                                            • Article#read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:50
                                                                                              • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:51
                                                                                              • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:52
                                                                                              • Article.primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/primary_key.rb:72
                                                                                              • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:52
                                                                                              • Article.primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/primary_key.rb:72
                                                                                              • Article#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                                                                • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                                                                • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                                                                  • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                                    • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                                                                  • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                                          • ActiveRecord::Associations::Preloader::HasMany#convert_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:100
                                                                                            • ActiveRecord::Associations::Preloader::HasMany#key_conversion_required? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:96
                                                                                              • ActiveRecord::Associations::Preloader::HasMany#association_key_type $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:108
                                                                                                • ActiveRecord::Associations::Preloader::HasMany#association_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:6
                                                                                                  • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                                • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:109
                                                                                                • Comment.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                                                                  • Comment.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                                                                    • Comment.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                                                      • Comment.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                                                                • ActiveModel::Type::Integer#type $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:15
                                                                                              • ActiveRecord::Associations::Preloader::HasMany#owner_key_type $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:112
                                                                                                • ActiveRecord::Associations::Preloader::HasMany#owner_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:10
                                                                                                  • ActiveRecord::Reflection::HasManyReflection#active_record_primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:405
                                                                                                • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:113
                                                                                                • Article.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                                                                  • Article.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                                                                    • Article.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                                                      • Article.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                                                                • ActiveModel::Type::Integer#type $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:15
                                                                                  • ActiveRecord::Associations::Preloader::HasMany#association_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:6
                                                                                    • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                  • Comment#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:346
                                                                                    • Comment#read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:50
                                                                                      • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:51
                                                                                      • Comment#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                                                              • ActiveRecord::LazyAttributeHash#assign_default_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:118
                                                                                                • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:119
                                                                                                • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:121
                                                                                                • ActiveRecord::Attribute.from_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:4
                                                                                                  • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:5
                                                                                                    • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:29
                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                                            • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:139
                                                                                              • ActiveModel::Type::Integer#deserialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:19
                                                                                                • Kernel#nil? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:20
                                                                                                • Integer#to_i $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:21
                                                                                  • ActiveRecord::Associations::Preloader::HasMany#convert_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:100
                                                                                    • ActiveRecord::Associations::Preloader::HasMany#key_conversion_required? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:96
                                                                                      • ActiveRecord::Associations::Preloader::HasMany#association_key_type $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:108
                                                                                        • ActiveRecord::Associations::Preloader::HasMany#association_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:6
                                                                                          • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:109
                                                                                        • Comment.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                                                          • Comment.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                                                            • Comment.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                                              • Comment.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                                                        • ActiveModel::Type::Integer#type $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:15
                                                                                      • ActiveRecord::Associations::Preloader::HasMany#owner_key_type $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:112
                                                                                        • ActiveRecord::Associations::Preloader::HasMany#owner_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:10
                                                                                          • ActiveRecord::Reflection::HasManyReflection#active_record_primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:405
                                                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:113
                                                                                        • Article.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                                                          • Article.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                                                            • Article.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                                              • Article.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                                                        • ActiveModel::Type::Integer#type $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:15
                                                                                  • Article#association $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:233
                                                                                    • Article#association_instance_get $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:273
                                                                                    • Kernel#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:236
                                                                                  • ActiveRecord::Associations::HasManyAssociation#set_inverse_instance $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:106
                                                                                    • ActiveRecord::Associations::HasManyAssociation#invertible_for? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:235
                                                                                      • ActiveRecord::Associations::HasManyAssociation#foreign_key_for? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:240
                                                                                        • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                        • Comment#has_attribute? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:251
                                                                                          • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:252
                                                                                          • ActiveRecord::AttributeSet#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:28
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                                                                                              • Hash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:38
                                                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                                                            • ActiveRecord::Attribute::FromDatabase#initialized? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:87
                                                                                      • ActiveRecord::Associations::HasManyAssociation#inverse_reflection_for $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:229
                                                                                        • ActiveRecord::Reflection::HasManyReflection#inverse_of $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:193
                                                                                          • ActiveRecord::Reflection::HasManyReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                                                                            • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                    • ActiveRecord::Associations::HasManyAssociation#inverse_reflection_for $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:229
                                                                                      • ActiveRecord::Reflection::HasManyReflection#inverse_of $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:193
                                                                                        • ActiveRecord::Reflection::HasManyReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                                                                          • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                    • Comment#association $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:233
                                                                                      • Comment#association_instance_get $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:273
                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:236
                                                                                      • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:237
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                                                                                        • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                          • Comment.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:114
                                                                                      • ActiveRecord::Reflection::BelongsToReflection#association_class $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:670
                                                                                        • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:511
                                                                                      • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:240
                                                                                        • ActiveRecord::Associations::BelongsToAssociation#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:24
                                                                                          • ActiveRecord::Reflection::BelongsToReflection#check_validity! $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:409
                                                                                            • ActiveRecord::Reflection::BelongsToReflection#check_validity_of_inverse! $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:199
                                                                                              • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:511
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                                                                                                • ActiveRecord::Reflection::BelongsToReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                                                                                  • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                                    • ActiveRecord::Reflection::BelongsToReflection#block in inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                          • ActiveRecord::Associations::BelongsToAssociation#reset $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/belongs_to_association.rb:25
                                                                                            • ActiveRecord::Associations::BelongsToAssociation#reset $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:42
                                                                                          • ActiveRecord::Associations::BelongsToAssociation#reset_scope $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:101
                                                                                      • Comment#association_instance_set $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:278
                                                                                    • ActiveRecord::Associations::BelongsToAssociation#target= $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:80
                                                                                      • ActiveRecord::Associations::BelongsToAssociation#loaded! $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:63
                                                                                        • ActiveRecord::Associations::BelongsToAssociation#stale_state $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/belongs_to_association.rb:102
                                                                                          • ActiveRecord::Reflection::BelongsToReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                          • Comment#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                                                            • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                                                            • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                                                              • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                                • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                                                              • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                                          • Fixnum#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:103
                                                                                            • NilClass#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:105
                                                                                            • Fixnum#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:106
                                                                                • Comment#_run_find_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:749
                                                                                  • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                    • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                      • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:111
                                                                                      • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                      • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                        • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                          • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                  • Comment#__run_callbacks__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:95
                                                                                    • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:480
                                                                                    • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:97
                                                                                • Comment#_run_initialize_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:749
                                                                                  • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                    • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                      • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:111
                                                                                      • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                      • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                        • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                          • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                  • Comment#__run_callbacks__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:95
                                                                                    • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:480
                                                                                    • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:97
                                                                        • ActiveRecord::Result#block in each $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:52
                                                                          • Comment.block (2 levels) in find_by_sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:50
                                                                            • Comment.instantiate $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:66
                                                                              • Comment.discriminate_class_for_record $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:161
                                                                                • Comment.using_single_table_inheritance? $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:169
                                                                                  • Comment.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                                                                    • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:272
                                                                                    • ApplicationRecord.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                                                                      • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:272
                                                                                      • ActiveRecord::Base.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                                                                  • NilClass#present? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:21
                                                                                    • NilClass#blank? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:52
                                                                                • Comment.discriminate_class_for_record $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:78
                                                                              • Comment.attributes_builder $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:330
                                                                              • ActiveRecord::AttributeSet::Builder#build_from_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:14
                                                                                • Hash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:15
                                                                                • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:19
                                                                                  • ActiveRecord::LazyAttributeHash#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:28
                                                                                • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:20
                                                                                  • ActiveRecord::AttributeSet#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:7
                                                                              • Comment.allocate $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:133
                                                                                • Comment.define_attribute_methods $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:55
                                                                                • Class#allocate $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:135
                                                                              • Comment#init_with $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:339
                                                                                • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:340
                                                                                • ActiveRecord::LegacyYamlAdapter.convert $GemPath0/gems/activerecord-5.0.2/lib/active_record/legacy_yaml_adapter.rb:3
                                                                                  • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/legacy_yaml_adapter.rb:4
                                                                                • Comment#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/aggregations.rb:22
                                                                                  • Comment#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:267
                                                                                    • Comment#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:539
                                                                                • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:347
                                                                                • Comment.define_attribute_methods $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:55
                                                                                • Kernel#block_given? $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:349
                                                                                • ActiveRecord::Associations::Preloader::HasMany#block in associated_records_by_owner $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:65
                                                                                  • ActiveRecord::Associations::Preloader::HasMany#owners_by_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:87
                                                                                  • ActiveRecord::Associations::Preloader::HasMany#association_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:6
                                                                                    • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                  • Comment#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:346
                                                                                    • Comment#read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:50
                                                                                      • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:51
                                                                                      • Comment#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                                                              • ActiveRecord::LazyAttributeHash#assign_default_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:118
                                                                                                • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:119
                                                                                                • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:121
                                                                                                • ActiveRecord::Attribute.from_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:4
                                                                                                  • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:5
                                                                                                    • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:29
                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                                            • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:139
                                                                                              • ActiveModel::Type::Integer#deserialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:19
                                                                                                • Kernel#nil? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:20
                                                                                                • Integer#to_i $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:21
                                                                                  • ActiveRecord::Associations::Preloader::HasMany#convert_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:100
                                                                                    • ActiveRecord::Associations::Preloader::HasMany#key_conversion_required? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:96
                                                                                      • ActiveRecord::Associations::Preloader::HasMany#association_key_type $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:108
                                                                                        • ActiveRecord::Associations::Preloader::HasMany#association_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:6
                                                                                          • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:109
                                                                                        • Comment.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                                                          • Comment.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                                                            • Comment.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                                              • Comment.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                                                        • ActiveModel::Type::Integer#type $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:15
                                                                                      • ActiveRecord::Associations::Preloader::HasMany#owner_key_type $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:112
                                                                                        • ActiveRecord::Associations::Preloader::HasMany#owner_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:10
                                                                                          • ActiveRecord::Reflection::HasManyReflection#active_record_primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:405
                                                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:113
                                                                                        • Article.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                                                          • Article.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                                                            • Article.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                                              • Article.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                                                        • ActiveModel::Type::Integer#type $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:15
                                                                                  • Article#association $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:233
                                                                                    • Article#association_instance_get $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:273
                                                                                    • Kernel#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:236
                                                                                  • ActiveRecord::Associations::HasManyAssociation#set_inverse_instance $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:106
                                                                                    • ActiveRecord::Associations::HasManyAssociation#invertible_for? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:235
                                                                                      • ActiveRecord::Associations::HasManyAssociation#foreign_key_for? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:240
                                                                                        • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                        • Comment#has_attribute? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:251
                                                                                          • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:252
                                                                                          • ActiveRecord::AttributeSet#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:28
                                                                                            • ActiveRecord::LazyAttributeHash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:37
                                                                                              • Hash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:38
                                                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                                                            • ActiveRecord::Attribute::FromDatabase#initialized? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:87
                                                                                      • ActiveRecord::Associations::HasManyAssociation#inverse_reflection_for $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:229
                                                                                        • ActiveRecord::Reflection::HasManyReflection#inverse_of $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:193
                                                                                          • ActiveRecord::Reflection::HasManyReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                                                                            • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                    • ActiveRecord::Associations::HasManyAssociation#inverse_reflection_for $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:229
                                                                                      • ActiveRecord::Reflection::HasManyReflection#inverse_of $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:193
                                                                                        • ActiveRecord::Reflection::HasManyReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                                                                          • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                    • Comment#association $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:233
                                                                                      • Comment#association_instance_get $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:273
                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:236
                                                                                      • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:237
                                                                                      • Comment._reflect_on_association $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:113
                                                                                        • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                          • Comment.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:114
                                                                                      • ActiveRecord::Reflection::BelongsToReflection#association_class $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:670
                                                                                        • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:511
                                                                                      • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:240
                                                                                        • ActiveRecord::Associations::BelongsToAssociation#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:24
                                                                                          • ActiveRecord::Reflection::BelongsToReflection#check_validity! $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:409
                                                                                            • ActiveRecord::Reflection::BelongsToReflection#check_validity_of_inverse! $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:199
                                                                                              • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:511
                                                                                              • ActiveRecord::Reflection::BelongsToReflection#has_inverse? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:464
                                                                                                • ActiveRecord::Reflection::BelongsToReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                                                                                  • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                                    • ActiveRecord::Reflection::BelongsToReflection#block in inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                          • ActiveRecord::Associations::BelongsToAssociation#reset $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/belongs_to_association.rb:25
                                                                                            • ActiveRecord::Associations::BelongsToAssociation#reset $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:42
                                                                                          • ActiveRecord::Associations::BelongsToAssociation#reset_scope $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:101
                                                                                      • Comment#association_instance_set $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:278
                                                                                    • ActiveRecord::Associations::BelongsToAssociation#target= $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:80
                                                                                      • ActiveRecord::Associations::BelongsToAssociation#loaded! $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:63
                                                                                        • ActiveRecord::Associations::BelongsToAssociation#stale_state $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/belongs_to_association.rb:102
                                                                                          • ActiveRecord::Reflection::BelongsToReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                          • Comment#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                                                            • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                                                            • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                                                              • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                                • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                                                              • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                                          • Fixnum#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:103
                                                                                            • NilClass#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:105
                                                                                            • Fixnum#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:106
                                                                                • Comment#_run_find_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:749
                                                                                  • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                    • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                      • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:111
                                                                                      • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                      • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                        • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                          • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                  • Comment#__run_callbacks__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:95
                                                                                    • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:480
                                                                                    • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:97
                                                                                • Comment#_run_initialize_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:749
                                                                                  • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                    • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                      • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:111
                                                                                      • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                      • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                        • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                          • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                  • Comment#__run_callbacks__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:95
                                                                                    • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:480
                                                                                    • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:97
                                                                        • ActiveRecord::Result#block in each $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:52
                                                                          • Comment.block (2 levels) in find_by_sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:50
                                                                            • Comment.instantiate $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:66
                                                                              • Comment.discriminate_class_for_record $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:161
                                                                                • Comment.using_single_table_inheritance? $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:169
                                                                                  • Comment.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                                                                    • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:272
                                                                                    • ApplicationRecord.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                                                                      • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:272
                                                                                      • ActiveRecord::Base.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                                                                  • NilClass#present? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:21
                                                                                    • NilClass#blank? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:52
                                                                                • Comment.discriminate_class_for_record $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:78
                                                                              • Comment.attributes_builder $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:330
                                                                              • ActiveRecord::AttributeSet::Builder#build_from_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:14
                                                                                • Hash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:15
                                                                                • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:19
                                                                                  • ActiveRecord::LazyAttributeHash#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:28
                                                                                • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:20
                                                                                  • ActiveRecord::AttributeSet#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:7
                                                                              • Comment.allocate $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:133
                                                                                • Comment.define_attribute_methods $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:55
                                                                                • Class#allocate $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:135
                                                                              • Comment#init_with $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:339
                                                                                • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:340
                                                                                • ActiveRecord::LegacyYamlAdapter.convert $GemPath0/gems/activerecord-5.0.2/lib/active_record/legacy_yaml_adapter.rb:3
                                                                                  • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/legacy_yaml_adapter.rb:4
                                                                                • Comment#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/aggregations.rb:22
                                                                                  • Comment#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:267
                                                                                    • Comment#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:539
                                                                                • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:347
                                                                                • Comment.define_attribute_methods $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:55
                                                                                • Kernel#block_given? $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:349
                                                                                • ActiveRecord::Associations::Preloader::HasMany#block in associated_records_by_owner $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:65
                                                                                  • ActiveRecord::Associations::Preloader::HasMany#owners_by_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:87
                                                                                  • ActiveRecord::Associations::Preloader::HasMany#association_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:6
                                                                                    • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                  • Comment#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:346
                                                                                    • Comment#read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:50
                                                                                      • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:51
                                                                                      • Comment#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                                                              • ActiveRecord::LazyAttributeHash#assign_default_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:118
                                                                                                • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:119
                                                                                                • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:121
                                                                                                • ActiveRecord::Attribute.from_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:4
                                                                                                  • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:5
                                                                                                    • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:29
                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                                            • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:139
                                                                                              • ActiveModel::Type::Integer#deserialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:19
                                                                                                • Kernel#nil? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:20
                                                                                                • Integer#to_i $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:21
                                                                                  • ActiveRecord::Associations::Preloader::HasMany#convert_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:100
                                                                                    • ActiveRecord::Associations::Preloader::HasMany#key_conversion_required? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:96
                                                                                      • ActiveRecord::Associations::Preloader::HasMany#association_key_type $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:108
                                                                                        • ActiveRecord::Associations::Preloader::HasMany#association_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:6
                                                                                          • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:109
                                                                                        • Comment.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                                                          • Comment.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                                                            • Comment.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                                              • Comment.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                                                        • ActiveModel::Type::Integer#type $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:15
                                                                                      • ActiveRecord::Associations::Preloader::HasMany#owner_key_type $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:112
                                                                                        • ActiveRecord::Associations::Preloader::HasMany#owner_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:10
                                                                                          • ActiveRecord::Reflection::HasManyReflection#active_record_primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:405
                                                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:113
                                                                                        • Article.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                                                          • Article.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                                                            • Article.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                                              • Article.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                                                        • ActiveModel::Type::Integer#type $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:15
                                                                                  • Article#association $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:233
                                                                                    • Article#association_instance_get $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:273
                                                                                    • Kernel#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:236
                                                                                  • ActiveRecord::Associations::HasManyAssociation#set_inverse_instance $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:106
                                                                                    • ActiveRecord::Associations::HasManyAssociation#invertible_for? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:235
                                                                                      • ActiveRecord::Associations::HasManyAssociation#foreign_key_for? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:240
                                                                                        • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                        • Comment#has_attribute? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:251
                                                                                          • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:252
                                                                                          • ActiveRecord::AttributeSet#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:28
                                                                                            • ActiveRecord::LazyAttributeHash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:37
                                                                                              • Hash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:38
                                                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                                                            • ActiveRecord::Attribute::FromDatabase#initialized? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:87
                                                                                      • ActiveRecord::Associations::HasManyAssociation#inverse_reflection_for $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:229
                                                                                        • ActiveRecord::Reflection::HasManyReflection#inverse_of $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:193
                                                                                          • ActiveRecord::Reflection::HasManyReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                                                                            • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                    • ActiveRecord::Associations::HasManyAssociation#inverse_reflection_for $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:229
                                                                                      • ActiveRecord::Reflection::HasManyReflection#inverse_of $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:193
                                                                                        • ActiveRecord::Reflection::HasManyReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                                                                          • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                    • Comment#association $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:233
                                                                                      • Comment#association_instance_get $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:273
                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:236
                                                                                      • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:237
                                                                                      • Comment._reflect_on_association $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:113
                                                                                        • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                          • Comment.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:114
                                                                                      • ActiveRecord::Reflection::BelongsToReflection#association_class $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:670
                                                                                        • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:511
                                                                                      • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:240
                                                                                        • ActiveRecord::Associations::BelongsToAssociation#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:24
                                                                                          • ActiveRecord::Reflection::BelongsToReflection#check_validity! $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:409
                                                                                            • ActiveRecord::Reflection::BelongsToReflection#check_validity_of_inverse! $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:199
                                                                                              • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:511
                                                                                              • ActiveRecord::Reflection::BelongsToReflection#has_inverse? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:464
                                                                                                • ActiveRecord::Reflection::BelongsToReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                                                                                  • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                                    • ActiveRecord::Reflection::BelongsToReflection#block in inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                          • ActiveRecord::Associations::BelongsToAssociation#reset $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/belongs_to_association.rb:25
                                                                                            • ActiveRecord::Associations::BelongsToAssociation#reset $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:42
                                                                                          • ActiveRecord::Associations::BelongsToAssociation#reset_scope $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:101
                                                                                      • Comment#association_instance_set $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:278
                                                                                    • ActiveRecord::Associations::BelongsToAssociation#target= $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:80
                                                                                      • ActiveRecord::Associations::BelongsToAssociation#loaded! $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:63
                                                                                        • ActiveRecord::Associations::BelongsToAssociation#stale_state $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/belongs_to_association.rb:102
                                                                                          • ActiveRecord::Reflection::BelongsToReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                          • Comment#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                                                            • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                                                            • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                                                              • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                                • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                                                              • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                                          • Fixnum#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:103
                                                                                            • NilClass#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:105
                                                                                            • Fixnum#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:106
                                                                                • Comment#_run_find_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:749
                                                                                  • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                    • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                      • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:111
                                                                                      • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                      • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                        • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                          • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                  • Comment#__run_callbacks__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:95
                                                                                    • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:480
                                                                                    • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:97
                                                                                • Comment#_run_initialize_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:749
                                                                                  • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                    • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                      • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:111
                                                                                      • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                      • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                        • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                          • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                  • Comment#__run_callbacks__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:95
                                                                                    • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:480
                                                                                    • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:97
                                                                        • ActiveRecord::Result#block in each $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:52
                                                                          • Comment.block (2 levels) in find_by_sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:50
                                                                            • Comment.instantiate $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:66
                                                                              • Comment.discriminate_class_for_record $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:161
                                                                                • Comment.using_single_table_inheritance? $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:169
                                                                                  • Comment.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                                                                    • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:272
                                                                                    • ApplicationRecord.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                                                                      • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:272
                                                                                      • ActiveRecord::Base.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                                                                  • NilClass#present? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:21
                                                                                    • NilClass#blank? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:52
                                                                                • Comment.discriminate_class_for_record $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:78
                                                                              • Comment.attributes_builder $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:330
                                                                              • ActiveRecord::AttributeSet::Builder#build_from_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:14
                                                                                • Hash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:15
                                                                                • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:19
                                                                                  • ActiveRecord::LazyAttributeHash#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:28
                                                                                • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:20
                                                                                  • ActiveRecord::AttributeSet#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:7
                                                                              • Comment.allocate $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:133
                                                                                • Comment.define_attribute_methods $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:55
                                                                                • Class#allocate $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:135
                                                                              • Comment#init_with $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:339
                                                                                • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:340
                                                                                • ActiveRecord::LegacyYamlAdapter.convert $GemPath0/gems/activerecord-5.0.2/lib/active_record/legacy_yaml_adapter.rb:3
                                                                                  • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/legacy_yaml_adapter.rb:4
                                                                                • Comment#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/aggregations.rb:22
                                                                                  • Comment#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:267
                                                                                    • Comment#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:539
                                                                                • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:347
                                                                                • Comment.define_attribute_methods $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:55
                                                                                • Kernel#block_given? $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:349
                                                                                • ActiveRecord::Associations::Preloader::HasMany#block in associated_records_by_owner $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:65
                                                                                  • ActiveRecord::Associations::Preloader::HasMany#owners_by_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:87
                                                                                  • ActiveRecord::Associations::Preloader::HasMany#association_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:6
                                                                                    • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                  • Comment#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:346
                                                                                    • Comment#read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:50
                                                                                      • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:51
                                                                                      • Comment#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                                                              • ActiveRecord::LazyAttributeHash#assign_default_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:118
                                                                                                • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:119
                                                                                                • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:121
                                                                                                • ActiveRecord::Attribute.from_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:4
                                                                                                  • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:5
                                                                                                    • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:29
                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                                            • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:139
                                                                                              • ActiveModel::Type::Integer#deserialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:19
                                                                                                • Kernel#nil? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:20
                                                                                                • Integer#to_i $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:21
                                                                                  • ActiveRecord::Associations::Preloader::HasMany#convert_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:100
                                                                                    • ActiveRecord::Associations::Preloader::HasMany#key_conversion_required? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:96
                                                                                      • ActiveRecord::Associations::Preloader::HasMany#association_key_type $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:108
                                                                                        • ActiveRecord::Associations::Preloader::HasMany#association_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:6
                                                                                          • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:109
                                                                                        • Comment.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                                                          • Comment.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                                                            • Comment.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                                              • Comment.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                                                        • ActiveModel::Type::Integer#type $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:15
                                                                                      • ActiveRecord::Associations::Preloader::HasMany#owner_key_type $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:112
                                                                                        • ActiveRecord::Associations::Preloader::HasMany#owner_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:10
                                                                                          • ActiveRecord::Reflection::HasManyReflection#active_record_primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:405
                                                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:113
                                                                                        • Article.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                                                          • Article.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                                                            • Article.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                                              • Article.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                                                        • ActiveModel::Type::Integer#type $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:15
                                                                                  • Article#association $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:233
                                                                                    • Article#association_instance_get $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:273
                                                                                    • Kernel#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:236
                                                                                  • ActiveRecord::Associations::HasManyAssociation#set_inverse_instance $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:106
                                                                                    • ActiveRecord::Associations::HasManyAssociation#invertible_for? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:235
                                                                                      • ActiveRecord::Associations::HasManyAssociation#foreign_key_for? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:240
                                                                                        • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                        • Comment#has_attribute? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:251
                                                                                          • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:252
                                                                                          • ActiveRecord::AttributeSet#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:28
                                                                                            • ActiveRecord::LazyAttributeHash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:37
                                                                                              • Hash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:38
                                                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                                                            • ActiveRecord::Attribute::FromDatabase#initialized? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:87
                                                                                      • ActiveRecord::Associations::HasManyAssociation#inverse_reflection_for $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:229
                                                                                        • ActiveRecord::Reflection::HasManyReflection#inverse_of $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:193
                                                                                          • ActiveRecord::Reflection::HasManyReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                                                                            • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                    • ActiveRecord::Associations::HasManyAssociation#inverse_reflection_for $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:229
                                                                                      • ActiveRecord::Reflection::HasManyReflection#inverse_of $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:193
                                                                                        • ActiveRecord::Reflection::HasManyReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                                                                          • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                    • Comment#association $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:233
                                                                                      • Comment#association_instance_get $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:273
                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:236
                                                                                      • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:237
                                                                                      • Comment._reflect_on_association $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:113
                                                                                        • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                          • Comment.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:114
                                                                                      • ActiveRecord::Reflection::BelongsToReflection#association_class $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:670
                                                                                        • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:511
                                                                                      • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:240
                                                                                        • ActiveRecord::Associations::BelongsToAssociation#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:24
                                                                                          • ActiveRecord::Reflection::BelongsToReflection#check_validity! $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:409
                                                                                            • ActiveRecord::Reflection::BelongsToReflection#check_validity_of_inverse! $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:199
                                                                                              • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:511
                                                                                              • ActiveRecord::Reflection::BelongsToReflection#has_inverse? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:464
                                                                                                • ActiveRecord::Reflection::BelongsToReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                                                                                  • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                                    • ActiveRecord::Reflection::BelongsToReflection#block in inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                          • ActiveRecord::Associations::BelongsToAssociation#reset $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/belongs_to_association.rb:25
                                                                                            • ActiveRecord::Associations::BelongsToAssociation#reset $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:42
                                                                                          • ActiveRecord::Associations::BelongsToAssociation#reset_scope $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:101
                                                                                      • Comment#association_instance_set $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:278
                                                                                    • ActiveRecord::Associations::BelongsToAssociation#target= $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:80
                                                                                      • ActiveRecord::Associations::BelongsToAssociation#loaded! $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:63
                                                                                        • ActiveRecord::Associations::BelongsToAssociation#stale_state $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/belongs_to_association.rb:102
                                                                                          • ActiveRecord::Reflection::BelongsToReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                          • Comment#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                                                            • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                                                            • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                                                              • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                                • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                                                              • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                                          • Fixnum#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:103
                                                                                            • NilClass#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:105
                                                                                            • Fixnum#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:106
                                                                                • Comment#_run_find_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:749
                                                                                  • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                    • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                      • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:111
                                                                                      • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                      • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                        • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                          • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                  • Comment#__run_callbacks__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:95
                                                                                    • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:480
                                                                                    • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:97
                                                                                • Comment#_run_initialize_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:749
                                                                                  • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                    • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                      • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:111
                                                                                      • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                      • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                        • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                          • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                  • Comment#__run_callbacks__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:95
                                                                                    • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:480
                                                                                    • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:97
                                                                        • ActiveRecord::Result#block in each $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:52
                                                                          • Comment.block (2 levels) in find_by_sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:50
                                                                            • Comment.instantiate $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:66
                                                                              • Comment.discriminate_class_for_record $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:161
                                                                                • Comment.using_single_table_inheritance? $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:169
                                                                                  • Comment.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                                                                    • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:272
                                                                                    • ApplicationRecord.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                                                                      • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:272
                                                                                      • ActiveRecord::Base.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                                                                  • NilClass#present? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:21
                                                                                    • NilClass#blank? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:52
                                                                                • Comment.discriminate_class_for_record $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:78
                                                                              • Comment.attributes_builder $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:330
                                                                              • ActiveRecord::AttributeSet::Builder#build_from_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:14
                                                                                • Hash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:15
                                                                                • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:19
                                                                                  • ActiveRecord::LazyAttributeHash#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:28
                                                                                • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:20
                                                                                  • ActiveRecord::AttributeSet#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:7
                                                                              • Comment.allocate $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:133
                                                                                • Comment.define_attribute_methods $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:55
                                                                                • Class#allocate $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:135
                                                                              • Comment#init_with $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:339
                                                                                • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:340
                                                                                • ActiveRecord::LegacyYamlAdapter.convert $GemPath0/gems/activerecord-5.0.2/lib/active_record/legacy_yaml_adapter.rb:3
                                                                                  • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/legacy_yaml_adapter.rb:4
                                                                                • Comment#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/aggregations.rb:22
                                                                                  • Comment#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:267
                                                                                    • Comment#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:539
                                                                                • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:347
                                                                                • Comment.define_attribute_methods $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:55
                                                                                • Kernel#block_given? $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:349
                                                                                • ActiveRecord::Associations::Preloader::HasMany#block in associated_records_by_owner $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:65
                                                                                  • ActiveRecord::Associations::Preloader::HasMany#owners_by_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:87
                                                                                  • ActiveRecord::Associations::Preloader::HasMany#association_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:6
                                                                                    • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                  • Comment#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:346
                                                                                    • Comment#read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:50
                                                                                      • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:51
                                                                                      • Comment#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                                                              • ActiveRecord::LazyAttributeHash#assign_default_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:118
                                                                                                • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:119
                                                                                                • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:121
                                                                                                • ActiveRecord::Attribute.from_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:4
                                                                                                  • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:5
                                                                                                    • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:29
                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                                            • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:139
                                                                                              • ActiveModel::Type::Integer#deserialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:19
                                                                                                • Kernel#nil? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:20
                                                                                                • Integer#to_i $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:21
                                                                                  • ActiveRecord::Associations::Preloader::HasMany#convert_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:100
                                                                                    • ActiveRecord::Associations::Preloader::HasMany#key_conversion_required? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:96
                                                                                      • ActiveRecord::Associations::Preloader::HasMany#association_key_type $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:108
                                                                                        • ActiveRecord::Associations::Preloader::HasMany#association_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:6
                                                                                          • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:109
                                                                                        • Comment.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                                                          • Comment.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                                                            • Comment.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                                              • Comment.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                                                        • ActiveModel::Type::Integer#type $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:15
                                                                                      • ActiveRecord::Associations::Preloader::HasMany#owner_key_type $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:112
                                                                                        • ActiveRecord::Associations::Preloader::HasMany#owner_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:10
                                                                                          • ActiveRecord::Reflection::HasManyReflection#active_record_primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:405
                                                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:113
                                                                                        • Article.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                                                          • Article.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                                                            • Article.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                                              • Article.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                                                        • ActiveModel::Type::Integer#type $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:15
                                                                                  • Article#association $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:233
                                                                                    • Article#association_instance_get $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:273
                                                                                    • Kernel#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:236
                                                                                  • ActiveRecord::Associations::HasManyAssociation#set_inverse_instance $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:106
                                                                                    • ActiveRecord::Associations::HasManyAssociation#invertible_for? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:235
                                                                                      • ActiveRecord::Associations::HasManyAssociation#foreign_key_for? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:240
                                                                                        • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                        • Comment#has_attribute? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:251
                                                                                          • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:252
                                                                                          • ActiveRecord::AttributeSet#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:28
                                                                                            • ActiveRecord::LazyAttributeHash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:37
                                                                                              • Hash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:38
                                                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                                                            • ActiveRecord::Attribute::FromDatabase#initialized? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:87
                                                                                      • ActiveRecord::Associations::HasManyAssociation#inverse_reflection_for $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:229
                                                                                        • ActiveRecord::Reflection::HasManyReflection#inverse_of $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:193
                                                                                          • ActiveRecord::Reflection::HasManyReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                                                                            • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                    • ActiveRecord::Associations::HasManyAssociation#inverse_reflection_for $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:229
                                                                                      • ActiveRecord::Reflection::HasManyReflection#inverse_of $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:193
                                                                                        • ActiveRecord::Reflection::HasManyReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                                                                          • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                    • Comment#association $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:233
                                                                                      • Comment#association_instance_get $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:273
                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:236
                                                                                      • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:237
                                                                                      • Comment._reflect_on_association $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:113
                                                                                        • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                          • Comment.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:114
                                                                                      • ActiveRecord::Reflection::BelongsToReflection#association_class $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:670
                                                                                        • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:511
                                                                                      • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:240
                                                                                        • ActiveRecord::Associations::BelongsToAssociation#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:24
                                                                                          • ActiveRecord::Reflection::BelongsToReflection#check_validity! $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:409
                                                                                            • ActiveRecord::Reflection::BelongsToReflection#check_validity_of_inverse! $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:199
                                                                                              • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:511
                                                                                              • ActiveRecord::Reflection::BelongsToReflection#has_inverse? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:464
                                                                                                • ActiveRecord::Reflection::BelongsToReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                                                                                  • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                                    • ActiveRecord::Reflection::BelongsToReflection#block in inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                          • ActiveRecord::Associations::BelongsToAssociation#reset $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/belongs_to_association.rb:25
                                                                                            • ActiveRecord::Associations::BelongsToAssociation#reset $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:42
                                                                                          • ActiveRecord::Associations::BelongsToAssociation#reset_scope $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:101
                                                                                      • Comment#association_instance_set $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:278
                                                                                    • ActiveRecord::Associations::BelongsToAssociation#target= $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:80
                                                                                      • ActiveRecord::Associations::BelongsToAssociation#loaded! $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:63
                                                                                        • ActiveRecord::Associations::BelongsToAssociation#stale_state $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/belongs_to_association.rb:102
                                                                                          • ActiveRecord::Reflection::BelongsToReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                          • Comment#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                                                            • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                                                            • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                                                              • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                                • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                                                              • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                                          • Fixnum#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:103
                                                                                            • NilClass#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:105
                                                                                            • Fixnum#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:106
                                                                                • Comment#_run_find_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:749
                                                                                  • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                    • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                      • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:111
                                                                                      • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                      • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                        • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                          • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                  • Comment#__run_callbacks__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:95
                                                                                    • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:480
                                                                                    • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:97
                                                                                • Comment#_run_initialize_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:749
                                                                                  • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                    • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                      • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:111
                                                                                      • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                      • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                        • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                          • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                  • Comment#__run_callbacks__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:95
                                                                                    • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:480
                                                                                    • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:97
                                                                        • ActiveRecord::Result#block in each $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:52
                                                                          • Comment.block (2 levels) in find_by_sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:50
                                                                            • Comment.instantiate $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:66
                                                                              • Comment.discriminate_class_for_record $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:161
                                                                                • Comment.using_single_table_inheritance? $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:169
                                                                                  • Comment.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                                                                    • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:272
                                                                                    • ApplicationRecord.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                                                                      • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:272
                                                                                      • ActiveRecord::Base.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                                                                  • NilClass#present? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:21
                                                                                    • NilClass#blank? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:52
                                                                                • Comment.discriminate_class_for_record $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:78
                                                                              • Comment.attributes_builder $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:330
                                                                              • ActiveRecord::AttributeSet::Builder#build_from_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:14
                                                                                • Hash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:15
                                                                                • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:19
                                                                                  • ActiveRecord::LazyAttributeHash#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:28
                                                                                • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:20
                                                                                  • ActiveRecord::AttributeSet#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:7
                                                                              • Comment.allocate $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:133
                                                                                • Comment.define_attribute_methods $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:55
                                                                                • Class#allocate $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:135
                                                                              • Comment#init_with $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:339
                                                                                • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:340
                                                                                • ActiveRecord::LegacyYamlAdapter.convert $GemPath0/gems/activerecord-5.0.2/lib/active_record/legacy_yaml_adapter.rb:3
                                                                                  • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/legacy_yaml_adapter.rb:4
                                                                                • Comment#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/aggregations.rb:22
                                                                                  • Comment#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:267
                                                                                    • Comment#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:539
                                                                                • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:347
                                                                                • Comment.define_attribute_methods $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:55
                                                                                • Kernel#block_given? $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:349
                                                                                • ActiveRecord::Associations::Preloader::HasMany#block in associated_records_by_owner $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:65
                                                                                  • ActiveRecord::Associations::Preloader::HasMany#owners_by_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:87
                                                                                  • ActiveRecord::Associations::Preloader::HasMany#association_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:6
                                                                                    • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                  • Comment#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:346
                                                                                    • Comment#read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:50
                                                                                      • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:51
                                                                                      • Comment#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                                                              • ActiveRecord::LazyAttributeHash#assign_default_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:118
                                                                                                • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:119
                                                                                                • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:121
                                                                                                • ActiveRecord::Attribute.from_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:4
                                                                                                  • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:5
                                                                                                    • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:29
                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                                            • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:139
                                                                                              • ActiveModel::Type::Integer#deserialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:19
                                                                                                • Kernel#nil? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:20
                                                                                                • Integer#to_i $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:21
                                                                                  • ActiveRecord::Associations::Preloader::HasMany#convert_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:100
                                                                                    • ActiveRecord::Associations::Preloader::HasMany#key_conversion_required? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:96
                                                                                      • ActiveRecord::Associations::Preloader::HasMany#association_key_type $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:108
                                                                                        • ActiveRecord::Associations::Preloader::HasMany#association_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:6
                                                                                          • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:109
                                                                                        • Comment.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                                                          • Comment.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                                                            • Comment.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                                              • Comment.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                                                        • ActiveModel::Type::Integer#type $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:15
                                                                                      • ActiveRecord::Associations::Preloader::HasMany#owner_key_type $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:112
                                                                                        • ActiveRecord::Associations::Preloader::HasMany#owner_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:10
                                                                                          • ActiveRecord::Reflection::HasManyReflection#active_record_primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:405
                                                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:113
                                                                                        • Article.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                                                          • Article.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                                                            • Article.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                                              • Article.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                                                        • ActiveModel::Type::Integer#type $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:15
                                                                                  • Article#association $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:233
                                                                                    • Article#association_instance_get $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:273
                                                                                    • Kernel#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:236
                                                                                  • ActiveRecord::Associations::HasManyAssociation#set_inverse_instance $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:106
                                                                                    • ActiveRecord::Associations::HasManyAssociation#invertible_for? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:235
                                                                                      • ActiveRecord::Associations::HasManyAssociation#foreign_key_for? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:240
                                                                                        • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                        • Comment#has_attribute? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:251
                                                                                          • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:252
                                                                                          • ActiveRecord::AttributeSet#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:28
                                                                                            • ActiveRecord::LazyAttributeHash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:37
                                                                                              • Hash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:38
                                                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                                                            • ActiveRecord::Attribute::FromDatabase#initialized? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:87
                                                                                      • ActiveRecord::Associations::HasManyAssociation#inverse_reflection_for $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:229
                                                                                        • ActiveRecord::Reflection::HasManyReflection#inverse_of $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:193
                                                                                          • ActiveRecord::Reflection::HasManyReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                                                                            • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                    • ActiveRecord::Associations::HasManyAssociation#inverse_reflection_for $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:229
                                                                                      • ActiveRecord::Reflection::HasManyReflection#inverse_of $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:193
                                                                                        • ActiveRecord::Reflection::HasManyReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                                                                          • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                    • Comment#association $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:233
                                                                                      • Comment#association_instance_get $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:273
                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:236
                                                                                      • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:237
                                                                                      • Comment._reflect_on_association $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:113
                                                                                        • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                          • Comment.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:114
                                                                                      • ActiveRecord::Reflection::BelongsToReflection#association_class $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:670
                                                                                        • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:511
                                                                                      • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:240
                                                                                        • ActiveRecord::Associations::BelongsToAssociation#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:24
                                                                                          • ActiveRecord::Reflection::BelongsToReflection#check_validity! $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:409
                                                                                            • ActiveRecord::Reflection::BelongsToReflection#check_validity_of_inverse! $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:199
                                                                                              • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:511
                                                                                              • ActiveRecord::Reflection::BelongsToReflection#has_inverse? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:464
                                                                                                • ActiveRecord::Reflection::BelongsToReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                                                                                  • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                                    • ActiveRecord::Reflection::BelongsToReflection#block in inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                          • ActiveRecord::Associations::BelongsToAssociation#reset $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/belongs_to_association.rb:25
                                                                                            • ActiveRecord::Associations::BelongsToAssociation#reset $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:42
                                                                                          • ActiveRecord::Associations::BelongsToAssociation#reset_scope $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:101
                                                                                      • Comment#association_instance_set $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:278
                                                                                    • ActiveRecord::Associations::BelongsToAssociation#target= $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:80
                                                                                      • ActiveRecord::Associations::BelongsToAssociation#loaded! $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:63
                                                                                        • ActiveRecord::Associations::BelongsToAssociation#stale_state $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/belongs_to_association.rb:102
                                                                                          • ActiveRecord::Reflection::BelongsToReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                          • Comment#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                                                            • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                                                            • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                                                              • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                                • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                                                              • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                                          • Fixnum#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:103
                                                                                            • NilClass#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:105
                                                                                            • Fixnum#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:106
                                                                                • Comment#_run_find_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:749
                                                                                  • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                    • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                      • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:111
                                                                                      • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                      • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                        • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                          • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                  • Comment#__run_callbacks__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:95
                                                                                    • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:480
                                                                                    • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:97
                                                                                • Comment#_run_initialize_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:749
                                                                                  • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                    • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                      • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:111
                                                                                      • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                      • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                        • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                          • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                  • Comment#__run_callbacks__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:95
                                                                                    • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:480
                                                                                    • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:97
                                                                        • ActiveRecord::Result#block in each $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:52
                                                                          • Comment.block (2 levels) in find_by_sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:50
                                                                            • Comment.instantiate $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:66
                                                                              • Comment.discriminate_class_for_record $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:161
                                                                                • Comment.using_single_table_inheritance? $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:169
                                                                                  • Comment.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                                                                    • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:272
                                                                                    • ApplicationRecord.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                                                                      • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:272
                                                                                      • ActiveRecord::Base.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                                                                  • NilClass#present? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:21
                                                                                    • NilClass#blank? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:52
                                                                                • Comment.discriminate_class_for_record $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:78
                                                                              • Comment.attributes_builder $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:330
                                                                              • ActiveRecord::AttributeSet::Builder#build_from_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:14
                                                                                • Hash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:15
                                                                                • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:19
                                                                                  • ActiveRecord::LazyAttributeHash#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:28
                                                                                • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:20
                                                                                  • ActiveRecord::AttributeSet#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:7
                                                                              • Comment.allocate $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:133
                                                                                • Comment.define_attribute_methods $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:55
                                                                                • Class#allocate $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:135
                                                                              • Comment#init_with $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:339
                                                                                • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:340
                                                                                • ActiveRecord::LegacyYamlAdapter.convert $GemPath0/gems/activerecord-5.0.2/lib/active_record/legacy_yaml_adapter.rb:3
                                                                                  • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/legacy_yaml_adapter.rb:4
                                                                                • Comment#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/aggregations.rb:22
                                                                                  • Comment#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:267
                                                                                    • Comment#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:539
                                                                                • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:347
                                                                                • Comment.define_attribute_methods $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:55
                                                                                • Kernel#block_given? $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:349
                                                                                • ActiveRecord::Associations::Preloader::HasMany#block in associated_records_by_owner $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:65
                                                                                  • ActiveRecord::Associations::Preloader::HasMany#owners_by_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:87
                                                                                  • ActiveRecord::Associations::Preloader::HasMany#association_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:6
                                                                                    • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                  • Comment#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:346
                                                                                    • Comment#read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:50
                                                                                      • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:51
                                                                                      • Comment#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                                                              • ActiveRecord::LazyAttributeHash#assign_default_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:118
                                                                                                • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:119
                                                                                                • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:121
                                                                                                • ActiveRecord::Attribute.from_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:4
                                                                                                  • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:5
                                                                                                    • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:29
                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                                            • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:139
                                                                                              • ActiveModel::Type::Integer#deserialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:19
                                                                                                • Kernel#nil? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:20
                                                                                                • Integer#to_i $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:21
                                                                                  • ActiveRecord::Associations::Preloader::HasMany#convert_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:100
                                                                                    • ActiveRecord::Associations::Preloader::HasMany#key_conversion_required? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:96
                                                                                      • ActiveRecord::Associations::Preloader::HasMany#association_key_type $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:108
                                                                                        • ActiveRecord::Associations::Preloader::HasMany#association_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:6
                                                                                          • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:109
                                                                                        • Comment.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                                                          • Comment.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                                                            • Comment.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                                              • Comment.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                                                        • ActiveModel::Type::Integer#type $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:15
                                                                                      • ActiveRecord::Associations::Preloader::HasMany#owner_key_type $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:112
                                                                                        • ActiveRecord::Associations::Preloader::HasMany#owner_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:10
                                                                                          • ActiveRecord::Reflection::HasManyReflection#active_record_primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:405
                                                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:113
                                                                                        • Article.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                                                          • Article.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                                                            • Article.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                                              • Article.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                                                        • ActiveModel::Type::Integer#type $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:15
                                                                                  • Article#association $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:233
                                                                                    • Article#association_instance_get $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:273
                                                                                    • Kernel#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:236
                                                                                  • ActiveRecord::Associations::HasManyAssociation#set_inverse_instance $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:106
                                                                                    • ActiveRecord::Associations::HasManyAssociation#invertible_for? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:235
                                                                                      • ActiveRecord::Associations::HasManyAssociation#foreign_key_for? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:240
                                                                                        • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                        • Comment#has_attribute? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:251
                                                                                          • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:252
                                                                                          • ActiveRecord::AttributeSet#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:28
                                                                                            • ActiveRecord::LazyAttributeHash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:37
                                                                                              • Hash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:38
                                                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                                                            • ActiveRecord::Attribute::FromDatabase#initialized? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:87
                                                                                      • ActiveRecord::Associations::HasManyAssociation#inverse_reflection_for $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:229
                                                                                        • ActiveRecord::Reflection::HasManyReflection#inverse_of $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:193
                                                                                          • ActiveRecord::Reflection::HasManyReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                                                                            • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                    • ActiveRecord::Associations::HasManyAssociation#inverse_reflection_for $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:229
                                                                                      • ActiveRecord::Reflection::HasManyReflection#inverse_of $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:193
                                                                                        • ActiveRecord::Reflection::HasManyReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                                                                          • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                    • Comment#association $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:233
                                                                                      • Comment#association_instance_get $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:273
                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:236
                                                                                      • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:237
                                                                                      • Comment._reflect_on_association $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:113
                                                                                        • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                          • Comment.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:114
                                                                                      • ActiveRecord::Reflection::BelongsToReflection#association_class $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:670
                                                                                        • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:511
                                                                                      • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:240
                                                                                        • ActiveRecord::Associations::BelongsToAssociation#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:24
                                                                                          • ActiveRecord::Reflection::BelongsToReflection#check_validity! $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:409
                                                                                            • ActiveRecord::Reflection::BelongsToReflection#check_validity_of_inverse! $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:199
                                                                                              • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:511
                                                                                              • ActiveRecord::Reflection::BelongsToReflection#has_inverse? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:464
                                                                                                • ActiveRecord::Reflection::BelongsToReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                                                                                  • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                                    • ActiveRecord::Reflection::BelongsToReflection#block in inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                          • ActiveRecord::Associations::BelongsToAssociation#reset $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/belongs_to_association.rb:25
                                                                                            • ActiveRecord::Associations::BelongsToAssociation#reset $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:42
                                                                                          • ActiveRecord::Associations::BelongsToAssociation#reset_scope $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:101
                                                                                      • Comment#association_instance_set $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:278
                                                                                    • ActiveRecord::Associations::BelongsToAssociation#target= $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:80
                                                                                      • ActiveRecord::Associations::BelongsToAssociation#loaded! $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:63
                                                                                        • ActiveRecord::Associations::BelongsToAssociation#stale_state $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/belongs_to_association.rb:102
                                                                                          • ActiveRecord::Reflection::BelongsToReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                          • Comment#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                                                            • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                                                            • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                                                              • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                                • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                                                              • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                                          • Fixnum#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:103
                                                                                            • NilClass#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:105
                                                                                            • Fixnum#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:106
                                                                                • Comment#_run_find_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:749
                                                                                  • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                    • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                      • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:111
                                                                                      • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                      • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                        • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                          • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                  • Comment#__run_callbacks__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:95
                                                                                    • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:480
                                                                                    • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:97
                                                                                • Comment#_run_initialize_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:749
                                                                                  • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                    • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                      • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:111
                                                                                      • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                      • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                        • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                          • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                  • Comment#__run_callbacks__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:95
                                                                                    • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:480
                                                                                    • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:97
                                                                        • ActiveRecord::Result#block in each $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:52
                                                                          • Comment.block (2 levels) in find_by_sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:50
                                                                            • Comment.instantiate $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:66
                                                                              • Comment.discriminate_class_for_record $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:161
                                                                                • Comment.using_single_table_inheritance? $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:169
                                                                                  • Comment.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                                                                    • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:272
                                                                                    • ApplicationRecord.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                                                                      • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:272
                                                                                      • ActiveRecord::Base.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                                                                  • NilClass#present? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:21
                                                                                    • NilClass#blank? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:52
                                                                                • Comment.discriminate_class_for_record $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:78
                                                                              • Comment.attributes_builder $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:330
                                                                              • ActiveRecord::AttributeSet::Builder#build_from_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:14
                                                                                • Hash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:15
                                                                                • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:19
                                                                                  • ActiveRecord::LazyAttributeHash#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:28
                                                                                • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:20
                                                                                  • ActiveRecord::AttributeSet#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:7
                                                                              • Comment.allocate $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:133
                                                                                • Comment.define_attribute_methods $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:55
                                                                                • Class#allocate $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:135
                                                                              • Comment#init_with $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:339
                                                                                • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:340
                                                                                • ActiveRecord::LegacyYamlAdapter.convert $GemPath0/gems/activerecord-5.0.2/lib/active_record/legacy_yaml_adapter.rb:3
                                                                                  • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/legacy_yaml_adapter.rb:4
                                                                                • Comment#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/aggregations.rb:22
                                                                                  • Comment#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:267
                                                                                    • Comment#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:539
                                                                                • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:347
                                                                                • Comment.define_attribute_methods $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:55
                                                                                • Kernel#block_given? $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:349
                                                                                • ActiveRecord::Associations::Preloader::HasMany#block in associated_records_by_owner $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:65
                                                                                  • ActiveRecord::Associations::Preloader::HasMany#owners_by_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:87
                                                                                  • ActiveRecord::Associations::Preloader::HasMany#association_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:6
                                                                                    • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                  • Comment#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:346
                                                                                    • Comment#read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:50
                                                                                      • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:51
                                                                                      • Comment#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                                                              • ActiveRecord::LazyAttributeHash#assign_default_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:118
                                                                                                • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:119
                                                                                                • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:121
                                                                                                • ActiveRecord::Attribute.from_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:4
                                                                                                  • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:5
                                                                                                    • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:29
                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                                            • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:139
                                                                                              • ActiveModel::Type::Integer#deserialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:19
                                                                                                • Kernel#nil? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:20
                                                                                                • Integer#to_i $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:21
                                                                                  • ActiveRecord::Associations::Preloader::HasMany#convert_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:100
                                                                                    • ActiveRecord::Associations::Preloader::HasMany#key_conversion_required? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:96
                                                                                      • ActiveRecord::Associations::Preloader::HasMany#association_key_type $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:108
                                                                                        • ActiveRecord::Associations::Preloader::HasMany#association_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:6
                                                                                          • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:109
                                                                                        • Comment.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                                                          • Comment.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                                                            • Comment.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                                              • Comment.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                                                        • ActiveModel::Type::Integer#type $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:15
                                                                                      • ActiveRecord::Associations::Preloader::HasMany#owner_key_type $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:112
                                                                                        • ActiveRecord::Associations::Preloader::HasMany#owner_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:10
                                                                                          • ActiveRecord::Reflection::HasManyReflection#active_record_primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:405
                                                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:113
                                                                                        • Article.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                                                          • Article.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                                                            • Article.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                                              • Article.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                                                        • ActiveModel::Type::Integer#type $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:15
                                                                                  • Article#association $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:233
                                                                                    • Article#association_instance_get $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:273
                                                                                    • Kernel#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:236
                                                                                  • ActiveRecord::Associations::HasManyAssociation#set_inverse_instance $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:106
                                                                                    • ActiveRecord::Associations::HasManyAssociation#invertible_for? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:235
                                                                                      • ActiveRecord::Associations::HasManyAssociation#foreign_key_for? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:240
                                                                                        • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                        • Comment#has_attribute? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:251
                                                                                          • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:252
                                                                                          • ActiveRecord::AttributeSet#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:28
                                                                                            • ActiveRecord::LazyAttributeHash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:37
                                                                                              • Hash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:38
                                                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                                                            • ActiveRecord::Attribute::FromDatabase#initialized? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:87
                                                                                      • ActiveRecord::Associations::HasManyAssociation#inverse_reflection_for $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:229
                                                                                        • ActiveRecord::Reflection::HasManyReflection#inverse_of $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:193
                                                                                          • ActiveRecord::Reflection::HasManyReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                                                                            • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                    • ActiveRecord::Associations::HasManyAssociation#inverse_reflection_for $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:229
                                                                                      • ActiveRecord::Reflection::HasManyReflection#inverse_of $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:193
                                                                                        • ActiveRecord::Reflection::HasManyReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                                                                          • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                    • Comment#association $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:233
                                                                                      • Comment#association_instance_get $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:273
                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:236
                                                                                      • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:237
                                                                                      • Comment._reflect_on_association $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:113
                                                                                        • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                          • Comment.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:114
                                                                                      • ActiveRecord::Reflection::BelongsToReflection#association_class $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:670
                                                                                        • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:511
                                                                                      • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:240
                                                                                        • ActiveRecord::Associations::BelongsToAssociation#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:24
                                                                                          • ActiveRecord::Reflection::BelongsToReflection#check_validity! $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:409
                                                                                            • ActiveRecord::Reflection::BelongsToReflection#check_validity_of_inverse! $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:199
                                                                                              • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:511
                                                                                              • ActiveRecord::Reflection::BelongsToReflection#has_inverse? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:464
                                                                                                • ActiveRecord::Reflection::BelongsToReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                                                                                  • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                                    • ActiveRecord::Reflection::BelongsToReflection#block in inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                          • ActiveRecord::Associations::BelongsToAssociation#reset $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/belongs_to_association.rb:25
                                                                                            • ActiveRecord::Associations::BelongsToAssociation#reset $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:42
                                                                                          • ActiveRecord::Associations::BelongsToAssociation#reset_scope $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:101
                                                                                      • Comment#association_instance_set $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:278
                                                                                    • ActiveRecord::Associations::BelongsToAssociation#target= $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:80
                                                                                      • ActiveRecord::Associations::BelongsToAssociation#loaded! $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:63
                                                                                        • ActiveRecord::Associations::BelongsToAssociation#stale_state $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/belongs_to_association.rb:102
                                                                                          • ActiveRecord::Reflection::BelongsToReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                          • Comment#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                                                            • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                                                            • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                                                              • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                                • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                                                              • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                                          • Fixnum#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:103
                                                                                            • NilClass#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:105
                                                                                            • Fixnum#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:106
                                                                                • Comment#_run_find_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:749
                                                                                  • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                    • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                      • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:111
                                                                                      • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                      • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                        • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                          • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                  • Comment#__run_callbacks__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:95
                                                                                    • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:480
                                                                                    • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:97
                                                                                • Comment#_run_initialize_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:749
                                                                                  • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                    • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                      • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:111
                                                                                      • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                      • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                        • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                          • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                  • Comment#__run_callbacks__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:95
                                                                                    • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:480
                                                                                    • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:97
                                                                        • ActiveRecord::Result#block in each $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:52
                                                                          • Comment.block (2 levels) in find_by_sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:50
                                                                            • Comment.instantiate $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:66
                                                                              • Comment.discriminate_class_for_record $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:161
                                                                                • Comment.using_single_table_inheritance? $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:169
                                                                                  • Comment.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                                                                    • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:272
                                                                                    • ApplicationRecord.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                                                                      • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:272
                                                                                      • ActiveRecord::Base.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                                                                  • NilClass#present? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:21
                                                                                    • NilClass#blank? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:52
                                                                                • Comment.discriminate_class_for_record $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:78
                                                                              • Comment.attributes_builder $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:330
                                                                              • ActiveRecord::AttributeSet::Builder#build_from_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:14
                                                                                • Hash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:15
                                                                                • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:19
                                                                                  • ActiveRecord::LazyAttributeHash#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:28
                                                                                • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:20
                                                                                  • ActiveRecord::AttributeSet#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:7
                                                                              • Comment.allocate $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:133
                                                                                • Comment.define_attribute_methods $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:55
                                                                                • Class#allocate $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:135
                                                                              • Comment#init_with $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:339
                                                                                • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:340
                                                                                • ActiveRecord::LegacyYamlAdapter.convert $GemPath0/gems/activerecord-5.0.2/lib/active_record/legacy_yaml_adapter.rb:3
                                                                                  • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/legacy_yaml_adapter.rb:4
                                                                                • Comment#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/aggregations.rb:22
                                                                                  • Comment#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:267
                                                                                    • Comment#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:539
                                                                                • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:347
                                                                                • Comment.define_attribute_methods $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:55
                                                                                • Kernel#block_given? $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:349
                                                                                • ActiveRecord::Associations::Preloader::HasMany#block in associated_records_by_owner $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:65
                                                                                  • ActiveRecord::Associations::Preloader::HasMany#owners_by_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:87
                                                                                  • ActiveRecord::Associations::Preloader::HasMany#association_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:6
                                                                                    • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                  • Comment#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:346
                                                                                    • Comment#read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:50
                                                                                      • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:51
                                                                                      • Comment#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                                                              • ActiveRecord::LazyAttributeHash#assign_default_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:118
                                                                                                • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:119
                                                                                                • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:121
                                                                                                • ActiveRecord::Attribute.from_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:4
                                                                                                  • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:5
                                                                                                    • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:29
                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                                            • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:139
                                                                                              • ActiveModel::Type::Integer#deserialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:19
                                                                                                • Kernel#nil? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:20
                                                                                                • Integer#to_i $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:21
                                                                                  • ActiveRecord::Associations::Preloader::HasMany#convert_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:100
                                                                                    • ActiveRecord::Associations::Preloader::HasMany#key_conversion_required? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:96
                                                                                      • ActiveRecord::Associations::Preloader::HasMany#association_key_type $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:108
                                                                                        • ActiveRecord::Associations::Preloader::HasMany#association_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:6
                                                                                          • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:109
                                                                                        • Comment.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                                                          • Comment.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                                                            • Comment.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                                              • Comment.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                                                        • ActiveModel::Type::Integer#type $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:15
                                                                                      • ActiveRecord::Associations::Preloader::HasMany#owner_key_type $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:112
                                                                                        • ActiveRecord::Associations::Preloader::HasMany#owner_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:10
                                                                                          • ActiveRecord::Reflection::HasManyReflection#active_record_primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:405
                                                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:113
                                                                                        • Article.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                                                          • Article.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                                                            • Article.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                                              • Article.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                                                        • ActiveModel::Type::Integer#type $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:15
                                                                                  • Article#association $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:233
                                                                                    • Article#association_instance_get $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:273
                                                                                    • Kernel#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:236
                                                                                  • ActiveRecord::Associations::HasManyAssociation#set_inverse_instance $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:106
                                                                                    • ActiveRecord::Associations::HasManyAssociation#invertible_for? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:235
                                                                                      • ActiveRecord::Associations::HasManyAssociation#foreign_key_for? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:240
                                                                                        • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                        • Comment#has_attribute? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:251
                                                                                          • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:252
                                                                                          • ActiveRecord::AttributeSet#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:28
                                                                                            • ActiveRecord::LazyAttributeHash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:37
                                                                                              • Hash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:38
                                                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                                                            • ActiveRecord::Attribute::FromDatabase#initialized? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:87
                                                                                      • ActiveRecord::Associations::HasManyAssociation#inverse_reflection_for $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:229
                                                                                        • ActiveRecord::Reflection::HasManyReflection#inverse_of $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:193
                                                                                          • ActiveRecord::Reflection::HasManyReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                                                                            • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                    • ActiveRecord::Associations::HasManyAssociation#inverse_reflection_for $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:229
                                                                                      • ActiveRecord::Reflection::HasManyReflection#inverse_of $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:193
                                                                                        • ActiveRecord::Reflection::HasManyReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                                                                          • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                    • Comment#association $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:233
                                                                                      • Comment#association_instance_get $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:273
                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:236
                                                                                      • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:237
                                                                                      • Comment._reflect_on_association $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:113
                                                                                        • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                          • Comment.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:114
                                                                                      • ActiveRecord::Reflection::BelongsToReflection#association_class $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:670
                                                                                        • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:511
                                                                                      • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:240
                                                                                        • ActiveRecord::Associations::BelongsToAssociation#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:24
                                                                                          • ActiveRecord::Reflection::BelongsToReflection#check_validity! $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:409
                                                                                            • ActiveRecord::Reflection::BelongsToReflection#check_validity_of_inverse! $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:199
                                                                                              • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:511
                                                                                              • ActiveRecord::Reflection::BelongsToReflection#has_inverse? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:464
                                                                                                • ActiveRecord::Reflection::BelongsToReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                                                                                  • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                                    • ActiveRecord::Reflection::BelongsToReflection#block in inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                          • ActiveRecord::Associations::BelongsToAssociation#reset $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/belongs_to_association.rb:25
                                                                                            • ActiveRecord::Associations::BelongsToAssociation#reset $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:42
                                                                                          • ActiveRecord::Associations::BelongsToAssociation#reset_scope $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:101
                                                                                      • Comment#association_instance_set $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:278
                                                                                    • ActiveRecord::Associations::BelongsToAssociation#target= $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:80
                                                                                      • ActiveRecord::Associations::BelongsToAssociation#loaded! $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:63
                                                                                        • ActiveRecord::Associations::BelongsToAssociation#stale_state $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/belongs_to_association.rb:102
                                                                                          • ActiveRecord::Reflection::BelongsToReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                          • Comment#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                                                            • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                                                            • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                                                              • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                                • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                                                              • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                                          • Fixnum#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:103
                                                                                            • NilClass#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:105
                                                                                            • Fixnum#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:106
                                                                                • Comment#_run_find_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:749
                                                                                  • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                    • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                      • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:111
                                                                                      • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                      • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                        • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                          • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                  • Comment#__run_callbacks__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:95
                                                                                    • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:480
                                                                                    • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:97
                                                                                • Comment#_run_initialize_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:749
                                                                                  • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                    • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                      • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:111
                                                                                      • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                      • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                        • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                          • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                  • Comment#__run_callbacks__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:95
                                                                                    • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:480
                                                                                    • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:97
                                                                        • ActiveRecord::Result#block in each $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:52
                                                                          • Comment.block (2 levels) in find_by_sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:50
                                                                            • Comment.instantiate $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:66
                                                                              • Comment.discriminate_class_for_record $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:161
                                                                                • Comment.using_single_table_inheritance? $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:169
                                                                                  • Comment.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                                                                    • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:272
                                                                                    • ApplicationRecord.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                                                                      • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:272
                                                                                      • ActiveRecord::Base.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                                                                  • NilClass#present? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:21
                                                                                    • NilClass#blank? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:52
                                                                                • Comment.discriminate_class_for_record $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:78
                                                                              • Comment.attributes_builder $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:330
                                                                              • ActiveRecord::AttributeSet::Builder#build_from_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:14
                                                                                • Hash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:15
                                                                                • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:19
                                                                                  • ActiveRecord::LazyAttributeHash#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:28
                                                                                • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:20
                                                                                  • ActiveRecord::AttributeSet#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:7
                                                                              • Comment.allocate $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:133
                                                                                • Comment.define_attribute_methods $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:55
                                                                                • Class#allocate $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:135
                                                                              • Comment#init_with $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:339
                                                                                • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:340
                                                                                • ActiveRecord::LegacyYamlAdapter.convert $GemPath0/gems/activerecord-5.0.2/lib/active_record/legacy_yaml_adapter.rb:3
                                                                                  • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/legacy_yaml_adapter.rb:4
                                                                                • Comment#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/aggregations.rb:22
                                                                                  • Comment#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:267
                                                                                    • Comment#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:539
                                                                                • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:347
                                                                                • Comment.define_attribute_methods $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:55
                                                                                • Kernel#block_given? $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:349
                                                                                • ActiveRecord::Associations::Preloader::HasMany#block in associated_records_by_owner $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:65
                                                                                  • ActiveRecord::Associations::Preloader::HasMany#owners_by_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:87
                                                                                  • ActiveRecord::Associations::Preloader::HasMany#association_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:6
                                                                                    • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                  • Comment#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:346
                                                                                    • Comment#read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:50
                                                                                      • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:51
                                                                                      • Comment#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                                                              • ActiveRecord::LazyAttributeHash#assign_default_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:118
                                                                                                • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:119
                                                                                                • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:121
                                                                                                • ActiveRecord::Attribute.from_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:4
                                                                                                  • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:5
                                                                                                    • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:29
                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                                            • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:139
                                                                                              • ActiveModel::Type::Integer#deserialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:19
                                                                                                • Kernel#nil? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:20
                                                                                                • Integer#to_i $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:21
                                                                                  • ActiveRecord::Associations::Preloader::HasMany#convert_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:100
                                                                                    • ActiveRecord::Associations::Preloader::HasMany#key_conversion_required? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:96
                                                                                      • ActiveRecord::Associations::Preloader::HasMany#association_key_type $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:108
                                                                                        • ActiveRecord::Associations::Preloader::HasMany#association_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:6
                                                                                          • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:109
                                                                                        • Comment.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                                                          • Comment.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                                                            • Comment.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                                              • Comment.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                                                        • ActiveModel::Type::Integer#type $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:15
                                                                                      • ActiveRecord::Associations::Preloader::HasMany#owner_key_type $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:112
                                                                                        • ActiveRecord::Associations::Preloader::HasMany#owner_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:10
                                                                                          • ActiveRecord::Reflection::HasManyReflection#active_record_primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:405
                                                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:113
                                                                                        • Article.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                                                          • Article.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                                                            • Article.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                                              • Article.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                                                        • ActiveModel::Type::Integer#type $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:15
                                                                                  • Article#association $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:233
                                                                                    • Article#association_instance_get $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:273
                                                                                    • Kernel#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:236
                                                                                  • ActiveRecord::Associations::HasManyAssociation#set_inverse_instance $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:106
                                                                                    • ActiveRecord::Associations::HasManyAssociation#invertible_for? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:235
                                                                                      • ActiveRecord::Associations::HasManyAssociation#foreign_key_for? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:240
                                                                                        • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                        • Comment#has_attribute? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:251
                                                                                          • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:252
                                                                                          • ActiveRecord::AttributeSet#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:28
                                                                                            • ActiveRecord::LazyAttributeHash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:37
                                                                                              • Hash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:38
                                                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                                                            • ActiveRecord::Attribute::FromDatabase#initialized? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:87
                                                                                      • ActiveRecord::Associations::HasManyAssociation#inverse_reflection_for $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:229
                                                                                        • ActiveRecord::Reflection::HasManyReflection#inverse_of $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:193
                                                                                          • ActiveRecord::Reflection::HasManyReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                                                                            • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                    • ActiveRecord::Associations::HasManyAssociation#inverse_reflection_for $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:229
                                                                                      • ActiveRecord::Reflection::HasManyReflection#inverse_of $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:193
                                                                                        • ActiveRecord::Reflection::HasManyReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                                                                          • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                    • Comment#association $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:233
                                                                                      • Comment#association_instance_get $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:273
                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:236
                                                                                      • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:237
                                                                                      • Comment._reflect_on_association $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:113
                                                                                        • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                          • Comment.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:114
                                                                                      • ActiveRecord::Reflection::BelongsToReflection#association_class $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:670
                                                                                        • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:511
                                                                                      • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:240
                                                                                        • ActiveRecord::Associations::BelongsToAssociation#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:24
                                                                                          • ActiveRecord::Reflection::BelongsToReflection#check_validity! $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:409
                                                                                            • ActiveRecord::Reflection::BelongsToReflection#check_validity_of_inverse! $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:199
                                                                                              • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:511
                                                                                              • ActiveRecord::Reflection::BelongsToReflection#has_inverse? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:464
                                                                                                • ActiveRecord::Reflection::BelongsToReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                                                                                  • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                                    • ActiveRecord::Reflection::BelongsToReflection#block in inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                          • ActiveRecord::Associations::BelongsToAssociation#reset $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/belongs_to_association.rb:25
                                                                                            • ActiveRecord::Associations::BelongsToAssociation#reset $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:42
                                                                                          • ActiveRecord::Associations::BelongsToAssociation#reset_scope $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:101
                                                                                      • Comment#association_instance_set $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:278
                                                                                    • ActiveRecord::Associations::BelongsToAssociation#target= $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:80
                                                                                      • ActiveRecord::Associations::BelongsToAssociation#loaded! $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:63
                                                                                        • ActiveRecord::Associations::BelongsToAssociation#stale_state $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/belongs_to_association.rb:102
                                                                                          • ActiveRecord::Reflection::BelongsToReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                          • Comment#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                                                            • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                                                            • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                                                              • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                                • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                                                              • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                                          • Fixnum#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:103
                                                                                            • NilClass#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:105
                                                                                            • Fixnum#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:106
                                                                                • Comment#_run_find_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:749
                                                                                  • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                    • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                      • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:111
                                                                                      • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                      • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                        • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                          • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                  • Comment#__run_callbacks__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:95
                                                                                    • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:480
                                                                                    • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:97
                                                                                • Comment#_run_initialize_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:749
                                                                                  • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                    • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                      • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:111
                                                                                      • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                      • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                        • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                          • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                  • Comment#__run_callbacks__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:95
                                                                                    • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:480
                                                                                    • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:97
                                                                        • ActiveRecord::Result#block in each $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:52
                                                                          • Comment.block (2 levels) in find_by_sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:50
                                                                            • Comment.instantiate $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:66
                                                                              • Comment.discriminate_class_for_record $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:161
                                                                                • Comment.using_single_table_inheritance? $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:169
                                                                                  • Comment.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                                                                    • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:272
                                                                                    • ApplicationRecord.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                                                                      • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:272
                                                                                      • ActiveRecord::Base.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                                                                  • NilClass#present? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:21
                                                                                    • NilClass#blank? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:52
                                                                                • Comment.discriminate_class_for_record $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:78
                                                                              • Comment.attributes_builder $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:330
                                                                              • ActiveRecord::AttributeSet::Builder#build_from_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:14
                                                                                • Hash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:15
                                                                                • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:19
                                                                                  • ActiveRecord::LazyAttributeHash#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:28
                                                                                • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:20
                                                                                  • ActiveRecord::AttributeSet#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:7
                                                                              • Comment.allocate $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:133
                                                                                • Comment.define_attribute_methods $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:55
                                                                                • Class#allocate $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:135
                                                                              • Comment#init_with $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:339
                                                                                • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:340
                                                                                • ActiveRecord::LegacyYamlAdapter.convert $GemPath0/gems/activerecord-5.0.2/lib/active_record/legacy_yaml_adapter.rb:3
                                                                                  • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/legacy_yaml_adapter.rb:4
                                                                                • Comment#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/aggregations.rb:22
                                                                                  • Comment#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:267
                                                                                    • Comment#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:539
                                                                                • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:347
                                                                                • Comment.define_attribute_methods $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:55
                                                                                • Kernel#block_given? $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:349
                                                                                • ActiveRecord::Associations::Preloader::HasMany#block in associated_records_by_owner $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:65
                                                                                  • ActiveRecord::Associations::Preloader::HasMany#owners_by_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:87
                                                                                  • ActiveRecord::Associations::Preloader::HasMany#association_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:6
                                                                                    • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                  • Comment#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:346
                                                                                    • Comment#read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:50
                                                                                      • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:51
                                                                                      • Comment#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                                                              • ActiveRecord::LazyAttributeHash#assign_default_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:118
                                                                                                • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:119
                                                                                                • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:121
                                                                                                • ActiveRecord::Attribute.from_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:4
                                                                                                  • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:5
                                                                                                    • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:29
                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                                            • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:139
                                                                                              • ActiveModel::Type::Integer#deserialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:19
                                                                                                • Kernel#nil? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:20
                                                                                                • Integer#to_i $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:21
                                                                                  • ActiveRecord::Associations::Preloader::HasMany#convert_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:100
                                                                                    • ActiveRecord::Associations::Preloader::HasMany#key_conversion_required? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:96
                                                                                      • ActiveRecord::Associations::Preloader::HasMany#association_key_type $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:108
                                                                                        • ActiveRecord::Associations::Preloader::HasMany#association_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:6
                                                                                          • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:109
                                                                                        • Comment.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                                                          • Comment.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                                                            • Comment.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                                              • Comment.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                                                        • ActiveModel::Type::Integer#type $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:15
                                                                                      • ActiveRecord::Associations::Preloader::HasMany#owner_key_type $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:112
                                                                                        • ActiveRecord::Associations::Preloader::HasMany#owner_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:10
                                                                                          • ActiveRecord::Reflection::HasManyReflection#active_record_primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:405
                                                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:113
                                                                                        • Article.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                                                          • Article.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                                                            • Article.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                                              • Article.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                                                        • ActiveModel::Type::Integer#type $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:15
                                                                                  • Article#association $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:233
                                                                                    • Article#association_instance_get $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:273
                                                                                    • Kernel#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:236
                                                                                  • ActiveRecord::Associations::HasManyAssociation#set_inverse_instance $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:106
                                                                                    • ActiveRecord::Associations::HasManyAssociation#invertible_for? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:235
                                                                                      • ActiveRecord::Associations::HasManyAssociation#foreign_key_for? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:240
                                                                                        • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                        • Comment#has_attribute? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:251
                                                                                          • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:252
                                                                                          • ActiveRecord::AttributeSet#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:28
                                                                                            • ActiveRecord::LazyAttributeHash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:37
                                                                                              • Hash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:38
                                                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                                                            • ActiveRecord::Attribute::FromDatabase#initialized? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:87
                                                                                      • ActiveRecord::Associations::HasManyAssociation#inverse_reflection_for $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:229
                                                                                        • ActiveRecord::Reflection::HasManyReflection#inverse_of $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:193
                                                                                          • ActiveRecord::Reflection::HasManyReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                                                                            • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                    • ActiveRecord::Associations::HasManyAssociation#inverse_reflection_for $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:229
                                                                                      • ActiveRecord::Reflection::HasManyReflection#inverse_of $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:193
                                                                                        • ActiveRecord::Reflection::HasManyReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                                                                          • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                    • Comment#association $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:233
                                                                                      • Comment#association_instance_get $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:273
                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:236
                                                                                      • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:237
                                                                                      • Comment._reflect_on_association $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:113
                                                                                        • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                          • Comment.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:114
                                                                                      • ActiveRecord::Reflection::BelongsToReflection#association_class $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:670
                                                                                        • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:511
                                                                                      • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:240
                                                                                        • ActiveRecord::Associations::BelongsToAssociation#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:24
                                                                                          • ActiveRecord::Reflection::BelongsToReflection#check_validity! $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:409
                                                                                            • ActiveRecord::Reflection::BelongsToReflection#check_validity_of_inverse! $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:199
                                                                                              • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:511
                                                                                              • ActiveRecord::Reflection::BelongsToReflection#has_inverse? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:464
                                                                                                • ActiveRecord::Reflection::BelongsToReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                                                                                  • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                                    • ActiveRecord::Reflection::BelongsToReflection#block in inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                          • ActiveRecord::Associations::BelongsToAssociation#reset $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/belongs_to_association.rb:25
                                                                                            • ActiveRecord::Associations::BelongsToAssociation#reset $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:42
                                                                                          • ActiveRecord::Associations::BelongsToAssociation#reset_scope $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:101
                                                                                      • Comment#association_instance_set $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:278
                                                                                    • ActiveRecord::Associations::BelongsToAssociation#target= $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:80
                                                                                      • ActiveRecord::Associations::BelongsToAssociation#loaded! $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:63
                                                                                        • ActiveRecord::Associations::BelongsToAssociation#stale_state $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/belongs_to_association.rb:102
                                                                                          • ActiveRecord::Reflection::BelongsToReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                          • Comment#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                                                            • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                                                            • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                                                              • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                                • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                                                              • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                                          • Fixnum#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:103
                                                                                            • NilClass#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:105
                                                                                            • Fixnum#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:106
                                                                                • Comment#_run_find_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:749
                                                                                  • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                    • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                      • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:111
                                                                                      • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                      • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                        • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                          • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                  • Comment#__run_callbacks__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:95
                                                                                    • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:480
                                                                                    • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:97
                                                                                • Comment#_run_initialize_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:749
                                                                                  • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                    • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                      • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:111
                                                                                      • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                      • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                        • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                          • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                  • Comment#__run_callbacks__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:95
                                                                                    • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:480
                                                                                    • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:97
                                                                        • ActiveRecord::Result#block in each $GemPath0/gems/activerecord-5.0.2/lib/active_record/result.rb:52
                                                                          • Comment.block (2 levels) in find_by_sql $GemPath0/gems/activerecord-5.0.2/lib/active_record/querying.rb:50
                                                                            • Comment.instantiate $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:66
                                                                              • Comment.discriminate_class_for_record $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:161
                                                                                • Comment.using_single_table_inheritance? $GemPath0/gems/activerecord-5.0.2/lib/active_record/inheritance.rb:169
                                                                                  • Comment.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                                                                    • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:272
                                                                                    • ApplicationRecord.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                                                                      • Class#superclass $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:272
                                                                                      • ActiveRecord::Base.inheritance_column $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:271
                                                                                  • NilClass#present? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:21
                                                                                    • NilClass#blank? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/object/blank.rb:52
                                                                                • Comment.discriminate_class_for_record $GemPath0/gems/activerecord-5.0.2/lib/active_record/persistence.rb:78
                                                                              • Comment.attributes_builder $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:330
                                                                              • ActiveRecord::AttributeSet::Builder#build_from_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:14
                                                                                • Hash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:15
                                                                                • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:19
                                                                                  • ActiveRecord::LazyAttributeHash#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:28
                                                                                • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:20
                                                                                  • ActiveRecord::AttributeSet#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:7
                                                                              • Comment.allocate $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:133
                                                                                • Comment.define_attribute_methods $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:55
                                                                                • Class#allocate $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:135
                                                                              • Comment#init_with $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:339
                                                                                • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:340
                                                                                • ActiveRecord::LegacyYamlAdapter.convert $GemPath0/gems/activerecord-5.0.2/lib/active_record/legacy_yaml_adapter.rb:3
                                                                                  • Kernel#is_a? $GemPath0/gems/activerecord-5.0.2/lib/active_record/legacy_yaml_adapter.rb:4
                                                                                • Comment#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/aggregations.rb:22
                                                                                  • Comment#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:267
                                                                                    • Comment#init_internals $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:539
                                                                                • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:347
                                                                                • Comment.define_attribute_methods $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:55
                                                                                • Kernel#block_given? $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:349
                                                                                • ActiveRecord::Associations::Preloader::HasMany#block in associated_records_by_owner $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:65
                                                                                  • ActiveRecord::Associations::Preloader::HasMany#owners_by_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:87
                                                                                  • ActiveRecord::Associations::Preloader::HasMany#association_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:6
                                                                                    • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                  • Comment#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:346
                                                                                    • Comment#read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:50
                                                                                      • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:51
                                                                                      • Comment#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                                                              • ActiveRecord::LazyAttributeHash#assign_default_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:118
                                                                                                • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:119
                                                                                                • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:121
                                                                                                • ActiveRecord::Attribute.from_database $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:4
                                                                                                  • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:5
                                                                                                    • ActiveRecord::Attribute::FromDatabase#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:29
                                                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                                            • ActiveRecord::Attribute::FromDatabase#type_cast $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:139
                                                                                              • ActiveModel::Type::Integer#deserialize $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:19
                                                                                                • Kernel#nil? $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:20
                                                                                                • Integer#to_i $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:21
                                                                                  • ActiveRecord::Associations::Preloader::HasMany#convert_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:100
                                                                                    • ActiveRecord::Associations::Preloader::HasMany#key_conversion_required? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:96
                                                                                      • ActiveRecord::Associations::Preloader::HasMany#association_key_type $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:108
                                                                                        • ActiveRecord::Associations::Preloader::HasMany#association_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:6
                                                                                          • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:109
                                                                                        • Comment.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                                                          • Comment.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                                                            • Comment.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                                              • Comment.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                                                        • ActiveModel::Type::Integer#type $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:15
                                                                                      • ActiveRecord::Associations::Preloader::HasMany#owner_key_type $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:112
                                                                                        • ActiveRecord::Associations::Preloader::HasMany#owner_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:10
                                                                                          • ActiveRecord::Reflection::HasManyReflection#active_record_primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:405
                                                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:113
                                                                                        • Article.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                                                          • Article.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                                                            • Article.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                                              • Article.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                                                        • ActiveModel::Type::Integer#type $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:15
                                                                                  • Article#association $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:233
                                                                                    • Article#association_instance_get $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:273
                                                                                    • Kernel#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:236
                                                                                  • ActiveRecord::Associations::HasManyAssociation#set_inverse_instance $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:106
                                                                                    • ActiveRecord::Associations::HasManyAssociation#invertible_for? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:235
                                                                                      • ActiveRecord::Associations::HasManyAssociation#foreign_key_for? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:240
                                                                                        • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                        • Comment#has_attribute? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:251
                                                                                          • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:252
                                                                                          • ActiveRecord::AttributeSet#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:28
                                                                                            • ActiveRecord::LazyAttributeHash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:37
                                                                                              • Hash#key? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:38
                                                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                                                            • ActiveRecord::Attribute::FromDatabase#initialized? $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:87
                                                                                      • ActiveRecord::Associations::HasManyAssociation#inverse_reflection_for $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:229
                                                                                        • ActiveRecord::Reflection::HasManyReflection#inverse_of $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:193
                                                                                          • ActiveRecord::Reflection::HasManyReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                                                                            • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                    • ActiveRecord::Associations::HasManyAssociation#inverse_reflection_for $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:229
                                                                                      • ActiveRecord::Reflection::HasManyReflection#inverse_of $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:193
                                                                                        • ActiveRecord::Reflection::HasManyReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                                                                          • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                    • Comment#association $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:233
                                                                                      • Comment#association_instance_get $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:273
                                                                                      • NilClass#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:236
                                                                                      • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:237
                                                                                      • Comment._reflect_on_association $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:113
                                                                                        • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                          • Comment.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:114
                                                                                      • ActiveRecord::Reflection::BelongsToReflection#association_class $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:670
                                                                                        • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:511
                                                                                      • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:240
                                                                                        • ActiveRecord::Associations::BelongsToAssociation#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:24
                                                                                          • ActiveRecord::Reflection::BelongsToReflection#check_validity! $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:409
                                                                                            • ActiveRecord::Reflection::BelongsToReflection#check_validity_of_inverse! $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:199
                                                                                              • ActiveRecord::Reflection::BelongsToReflection#polymorphic? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:511
                                                                                              • ActiveRecord::Reflection::BelongsToReflection#has_inverse? $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:464
                                                                                                • ActiveRecord::Reflection::BelongsToReflection#inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:545
                                                                                                  • Hash#fetch $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                                    • ActiveRecord::Reflection::BelongsToReflection#block in inverse_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:546
                                                                                          • ActiveRecord::Associations::BelongsToAssociation#reset $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/belongs_to_association.rb:25
                                                                                            • ActiveRecord::Associations::BelongsToAssociation#reset $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:42
                                                                                          • ActiveRecord::Associations::BelongsToAssociation#reset_scope $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:101
                                                                                      • Comment#association_instance_set $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:278
                                                                                    • ActiveRecord::Associations::BelongsToAssociation#target= $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:80
                                                                                      • ActiveRecord::Associations::BelongsToAssociation#loaded! $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:63
                                                                                        • ActiveRecord::Associations::BelongsToAssociation#stale_state $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/belongs_to_association.rb:102
                                                                                          • ActiveRecord::Reflection::BelongsToReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                                                          • Comment#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                                                            • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                                                            • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                                                              • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                                                                • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                                                              • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                                                          • Fixnum#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:103
                                                                                            • NilClass#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:105
                                                                                            • Fixnum#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:106
                                                                                • Comment#_run_find_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:749
                                                                                  • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                    • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                      • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:111
                                                                                      • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                      • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                        • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                          • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                  • Comment#__run_callbacks__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:95
                                                                                    • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:480
                                                                                    • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:97
                                                                                • Comment#_run_initialize_callbacks $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:749
                                                                                  • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                    • Comment#block (2 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:110
                                                                                      • Kernel#instance_variable_defined? $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:111
                                                                                      • Kernel#class $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                      • Kernel#public_send $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:114
                                                                                        • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                          • Comment.block (4 levels) in class_attribute $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/class/attribute.rb:90
                                                                                  • Comment#__run_callbacks__ $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:95
                                                                                    • ActiveSupport::Callbacks::CallbackChain#empty? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:480
                                                                                    • Kernel#block_given? $GemPath0/gems/activesupport-5.0.2/lib/active_support/callbacks.rb:97
                                                                • ActiveSupport::Notifications::Instrumenter#finish_with_state $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/instrumenter.rb:41
                                                                  • ActiveSupport::Notifications::Fanout#finish $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:45
                                                                    • Array#each $GemPath0/gems/activesupport-5.0.2/lib/active_support/notifications/fanout.rb:46
                                                            • Kernel#freeze $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:702
                                                            • Comment::ActiveRecord_Relation#preload_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:60
                                                            • Comment::ActiveRecord_Relation#eager_loading? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:637
                                                              • Comment::ActiveRecord_Relation#eager_load_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.rb:639
                                                              • Comment::ActiveRecord_Relation#includes_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.rb:640
                                                            • Comment::ActiveRecord_Relation#includes_values $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:60
                                                            • Comment::ActiveRecord_Relation#build_preloader $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:717
                                                              • Class#new $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:718
                                                                • BasicObject#initialize $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:718
                                                            • Array#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:707
                                                            • Comment::ActiveRecord_Relation#readonly_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:73
                                                      • Comment::ActiveRecord_Relation#respond_to? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:111
                                                        • Kernel#respond_to? $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:112
                                                      • Comment::ActiveRecord_Relation#to_ary $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:38
                                                        • Comment::ActiveRecord_Relation#records $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:259
                                                          • Comment::ActiveRecord_Relation#load $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation.rb:582
                                                        • Array#to_ary $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:38
                                              • Enumerable#group_by $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:124
                                                • Array#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:124
                                                  • ActiveRecord::Associations::Preloader::HasMany#block in load_records $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:124
                                                    • ActiveRecord::Associations::Preloader::HasMany#association_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:6
                                                      • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                    • Comment#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:346
                                                      • Comment#read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:50
                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:51
                                                        • Comment#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                          • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                          • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                            • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                    • ActiveRecord::Associations::Preloader::HasMany#convert_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:100
                                                      • ActiveRecord::Associations::Preloader::HasMany#key_conversion_required? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:96
                                                        • ActiveRecord::Associations::Preloader::HasMany#association_key_type $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:108
                                                          • ActiveRecord::Associations::Preloader::HasMany#association_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:6
                                                            • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                          • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:109
                                                          • Comment.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                            • Comment.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                              • Comment.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                • Comment.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                          • ActiveModel::Type::Integer#type $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:15
                                                        • ActiveRecord::Associations::Preloader::HasMany#owner_key_type $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:112
                                                          • ActiveRecord::Associations::Preloader::HasMany#owner_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:10
                                                            • ActiveRecord::Reflection::HasManyReflection#active_record_primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:405
                                                          • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:113
                                                          • Article.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                            • Article.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                              • Article.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                • Article.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
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                                                  • ActiveRecord::Associations::Preloader::HasMany#block in load_records $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:124
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                                                      • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                    • Comment#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:346
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                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:51
                                                        • Comment#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                          • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                          • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
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                                                            • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                    • ActiveRecord::Associations::Preloader::HasMany#convert_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:100
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                                                          • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:109
                                                          • Comment.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                            • Comment.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                              • Comment.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
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                                                          • ActiveRecord::Associations::Preloader::HasMany#owner_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:10
                                                            • ActiveRecord::Reflection::HasManyReflection#active_record_primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:405
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                                                          • Article.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
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                                                              • Article.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
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                                                  • ActiveRecord::Associations::Preloader::HasMany#block in load_records $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:124
                                                    • ActiveRecord::Associations::Preloader::HasMany#association_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:6
                                                      • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                    • Comment#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:346
                                                      • Comment#read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:50
                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:51
                                                        • Comment#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                          • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                          • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                            • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                              • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                            • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                    • ActiveRecord::Associations::Preloader::HasMany#convert_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:100
                                                      • ActiveRecord::Associations::Preloader::HasMany#key_conversion_required? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:96
                                                        • ActiveRecord::Associations::Preloader::HasMany#association_key_type $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:108
                                                          • ActiveRecord::Associations::Preloader::HasMany#association_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:6
                                                            • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                          • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:109
                                                          • Comment.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                            • Comment.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                              • Comment.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                                • Comment.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                          • ActiveModel::Type::Integer#type $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:15
                                                        • ActiveRecord::Associations::Preloader::HasMany#owner_key_type $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:112
                                                          • ActiveRecord::Associations::Preloader::HasMany#owner_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:10
                                                            • ActiveRecord::Reflection::HasManyReflection#active_record_primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:405
                                                          • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:113
                                                          • Article.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
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                                                              • Article.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
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                                                      • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                    • Comment#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods.rb:346
                                                      • Comment#read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:50
                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:51
                                                        • Comment#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                          • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                          • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
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                                                      • Kernel#class $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:52
                                                      • Article.primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/primary_key.rb:72
                                                      • Article#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                  • ActiveRecord::Associations::Preloader::HasMany#convert_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:100
                                                    • ActiveRecord::Associations::Preloader::HasMany#key_conversion_required? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:96
                                                      • ActiveRecord::Associations::Preloader::HasMany#association_key_type $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:108
                                                        • ActiveRecord::Associations::Preloader::HasMany#association_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:6
                                                          • ActiveRecord::Reflection::HasManyReflection#foreign_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:388
                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:109
                                                        • Comment.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                          • Comment.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                            • Comment.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                              • Comment.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                        • ActiveModel::Type::Integer#type $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:15
                                                      • ActiveRecord::Associations::Preloader::HasMany#owner_key_type $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:112
                                                        • ActiveRecord::Associations::Preloader::HasMany#owner_key_name $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/has_many.rb:10
                                                          • ActiveRecord::Reflection::HasManyReflection#active_record_primary_key $GemPath0/gems/activerecord-5.0.2/lib/active_record/reflection.rb:405
                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/association.rb:113
                                                        • Article.type_for_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:364
                                                          • Article.attribute_types $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:348
                                                            • Article.load_schema $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:435
                                                              • Article.schema_loaded? $GemPath0/gems/activerecord-5.0.2/lib/active_record/model_schema.rb:431
                                                        • ActiveModel::Type::Integer#type $GemPath0/gems/activemodel-5.0.2/lib/active_model/type/integer.rb:15
                                                  • Article#hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:435
                                                    • Article#__temp__9646 $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:34
                                                      • Article#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                    • Article#__temp__9646 $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:34
                                                      • Article#_read_attribute $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:65
                                                        • String#to_s $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_methods/read.rb:66
                                                        • ActiveRecord::AttributeSet#fetch_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:43
                                                          • ActiveRecord::AttributeSet#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set.rb:11
                                                            • ActiveRecord::LazyAttributeHash#[] $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute_set/builder.rb:41
                                                          • ActiveRecord::Attribute::FromDatabase#value $GemPath0/gems/activerecord-5.0.2/lib/active_record/attribute.rb:36
                                                    • Kernel#hash $GemPath0/gems/activerecord-5.0.2/lib/active_record/core.rb:437
                                          • Hash#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/collection_association.rb:8
                                            • ActiveRecord::Associations::Preloader::HasMany#block in preload $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/collection_association.rb:8
                                              • Article#association $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:233
                                                • Article#association_instance_get $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:273
                                                • Kernel#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:236
                                              • ActiveRecord::Associations::HasManyAssociation#loaded! $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:63
                                                • ActiveRecord::Associations::HasManyAssociation#stale_state $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:249
                                              • Array#concat $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/collection_association.rb:11
                                            • ActiveRecord::Associations::Preloader::HasMany#block in preload $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/collection_association.rb:8
                                              • Article#association $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:233
                                                • Article#association_instance_get $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:273
                                                • Kernel#nil? $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations.rb:236
                                              • ActiveRecord::Associations::HasManyAssociation#loaded! $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:63
                                                • ActiveRecord::Associations::HasManyAssociation#stale_state $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/association.rb:249
                                              • Array#concat $GemPath0/gems/activerecord-5.0.2/lib/active_record/associations/preloader/collection_association.rb:11
          • Article::ActiveRecord_Relation#readonly_value $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/query_methods.rb:73
    • Array#each $GemPath0/gems/activerecord-5.0.2/lib/active_record/relation/delegation.rb:38
      • Object#block (2 levels) in irb_binding (irb):34
      • Object#block (2 levels) in irb_binding (irb):34