Object#block in __pry__
(pry):57
Student#__temp__16c6961637f5e616d65637
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Student#_read_attribute
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String#to_s
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ActiveRecord::AttributeSet#fetch_value
$GemPath0/gems/activerecord-5.1.2/lib/active_record/attribute_set.rb:44
ActiveRecord::AttributeSet#[]
$GemPath0/gems/activerecord-5.1.2/lib/active_record/attribute_set.rb:12
ActiveRecord::LazyAttributeHash#[]
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ActiveRecord::LazyAttributeHash#assign_default_value
$GemPath0/gems/activerecord-5.1.2/lib/active_record/attribute_set/builder.rb:112
Hash#fetch
$GemPath0/gems/activerecord-5.1.2/lib/active_record/attribute_set/builder.rb:113
Hash#fetch
$GemPath0/gems/activerecord-5.1.2/lib/active_record/attribute_set/builder.rb:115
ActiveRecord::Attribute.from_database
$GemPath0/gems/activerecord-5.1.2/lib/active_record/attribute.rb:4
Class#new
$GemPath0/gems/activerecord-5.1.2/lib/active_record/attribute.rb:5
ActiveRecord::Attribute::FromDatabase#initialize
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ActiveRecord::Attribute::FromDatabase#value
$GemPath0/gems/activerecord-5.1.2/lib/active_record/attribute.rb:36
ActiveRecord::Attribute::FromDatabase#type_cast
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ActiveRecord::Type::Serialized#deserialize
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ActiveRecord::Type::Serialized#default_value?
$GemPath0/gems/activerecord-5.1.2/lib/active_record/type/serialized.rb:54
ActiveRecord::Coders::YAMLColumn#load
$GemPath0/gems/activerecord-5.1.2/lib/active_record/coders/yaml_column.rb:21
NilClass#nil?
$GemPath0/gems/activerecord-5.1.2/lib/active_record/coders/yaml_column.rb:22
Class#new
$GemPath0/gems/activerecord-5.1.2/lib/active_record/coders/yaml_column.rb:22
Array#initialize
$GemPath0/gems/activerecord-5.1.2/lib/active_record/coders/yaml_column.rb:22
String#==
$GemPath0/gems/activerecord-5.1.2/lib/active_record/type/serialized.rb:55
ActiveRecord::Type::Serialized#deserialize -> block in delegating_block
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ActiveRecord::Type::Serialized#block in delegating_block
/home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:339
ActiveRecord::Type::Serialized#__getobj__
/home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/delegate.rb:384
ActiveRecord::Type::Text#deserialize
$GemPath0/gems/activemodel-5.1.2/lib/active_model/type/value.rb:21
ActiveRecord::Type::Text#cast
$GemPath0/gems/activemodel-5.1.2/lib/active_model/type/value.rb:35
Kernel#nil?
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ActiveRecord::Type::Text#cast_value
$GemPath0/gems/activemodel-5.1.2/lib/active_model/type/string.rb:14
Module#===
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Class#new
$GemPath0/gems/activemodel-5.1.2/lib/active_model/type/string.rb:16
String#initialize
$GemPath0/gems/activemodel-5.1.2/lib/active_model/type/string.rb:16
ActiveRecord::Coders::YAMLColumn#load
$GemPath0/gems/activerecord-5.1.2/lib/active_record/coders/yaml_column.rb:21
Kernel#nil?
$GemPath0/gems/activerecord-5.1.2/lib/active_record/coders/yaml_column.rb:22
Kernel#is_a?
$GemPath0/gems/activerecord-5.1.2/lib/active_record/coders/yaml_column.rb:23
Regexp#match?
$GemPath0/gems/activerecord-5.1.2/lib/active_record/coders/yaml_column.rb:23
Psych.load
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Psych.parse
/home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/psych.rb:324
Psych.parse_stream
/home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/psych.rb:374
Kernel#block_given?
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Class#new
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Psych::Handlers::DocumentStream#initialize
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Psych::Handlers::DocumentStream#initialize
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Class#new
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Psych::Parser#initialize
/home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/psych/parser.rb:47
Psych::Parser#parse
/home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/psych.rb:377
Psych::Handlers::DocumentStream#start_stream
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Class#new
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Psych::Nodes::Stream#initialize
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Psych::Nodes::Stream#initialize
/home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/psych/nodes/node.rb:21
Psych::Handlers::DocumentStream#push
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Array#push
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Psych::Handlers::DocumentStream#start_document
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Class#new
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Psych::Nodes::Document#initialize
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Psych::Nodes::Document#initialize
/home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/psych/nodes/node.rb:21
Psych::Handlers::DocumentStream#push
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Array#push
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Psych::Handlers::DocumentStream#start_sequence
(eval):2
Class#new
(eval):3
Psych::Nodes::Sequence#initialize
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Psych::Nodes::Sequence#initialize
/home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/psych/nodes/node.rb:21
Psych::Handlers::DocumentStream#push
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Array#push
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Psych::Handlers::DocumentStream#scalar
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Class#new
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Psych::Nodes::Scalar#initialize
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Psych::Handlers::DocumentStream#scalar
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Class#new
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Psych::Nodes::Scalar#initialize
/home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/psych/nodes/scalar.rb:58
Psych::Handlers::DocumentStream#end_sequence
(eval):8
Psych::Handlers::DocumentStream#pop
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Array#pop
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Array#last
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Psych::Handlers::DocumentStream#end_document
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Psych::Handlers::DocumentStream#pop
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Array#pop
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Array#last
/home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/psych/tree_builder.rb:93
Psych.block in parse
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Psych::Nodes::Document#to_ruby
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Psych::Visitors::ToRuby.create
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Class#new
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Psych::ClassLoader#initialize
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Kernel#dup
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Kernel#initialize_dup
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Hash#initialize_copy
/home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/psych/class_loader.rb:22
Class#new
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Psych::ScalarScanner#initialize
/home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/psych/scalar_scanner.rb:26
Class#new
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Psych::Visitors::ToRuby#initialize
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BasicObject#initialize
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Psych::Visitors::ToRuby#accept
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Psych::Visitors::ToRuby#accept
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Psych::Visitors::ToRuby#visit
/home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/psych/visitors/visitor.rb:15
Kernel#class
/home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/psych/visitors/visitor.rb:16
Kernel#hash
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Psych::Visitors::ToRuby#visit_Psych_Nodes_Document
/home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/psych/visitors/to_ruby.rb:310
Psych::Nodes::Document#root
/home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/psych/nodes/document.rb:56
Array#first
/home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/psych/nodes/document.rb:57
Psych::Visitors::ToRuby#accept
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Psych::Visitors::ToRuby#accept
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Psych::Visitors::ToRuby#visit
/home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/psych/visitors/visitor.rb:15
Kernel#class
/home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/psych/visitors/visitor.rb:16
Kernel#hash
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Psych::Visitors::ToRuby#visit_Psych_Nodes_Sequence
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Psych::Visitors::ToRuby#resolve_class
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Psych::ClassLoader#load
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NilClass#===
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Psych::Visitors::ToRuby#register_empty
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Psych::Visitors::ToRuby#register
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Array#each
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Psych::Visitors::ToRuby#block in register_empty
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Psych::Visitors::ToRuby#accept
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Psych::Visitors::ToRuby#accept
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Psych::Visitors::ToRuby#visit
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Kernel#class
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Kernel#hash
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Psych::Visitors::ToRuby#visit_Psych_Nodes_Scalar
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Psych::Visitors::ToRuby#deserialize
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Psych::Visitors::ToRuby#resolve_class
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Psych::ClassLoader#load
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Psych::ScalarScanner#tokenize
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Hash#key?
/home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/psych/scalar_scanner.rb:35
Hash#key?
/home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/psych/scalar_scanner.rb:36
Regexp#===
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Regexp#===
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Psych::Visitors::ToRuby#register
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Array#push
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Psych::Visitors::ToRuby#block in register_empty
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Psych::Visitors::ToRuby#accept
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Psych::Visitors::ToRuby#accept
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Psych::Visitors::ToRuby#visit
/home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/psych/visitors/visitor.rb:15
Kernel#class
/home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/psych/visitors/visitor.rb:16
Kernel#hash
/home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/psych/visitors/visitor.rb:16
Psych::Visitors::ToRuby#visit_Psych_Nodes_Scalar
/home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/psych/visitors/to_ruby.rb:122
Psych::Visitors::ToRuby#deserialize
/home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/psych/visitors/to_ruby.rb:46
Psych::Visitors::ToRuby#resolve_class
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Psych::ClassLoader#load
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Psych::ScalarScanner#tokenize
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Hash#key?
/home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/psych/scalar_scanner.rb:35
Hash#key?
/home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/psych/scalar_scanner.rb:36
Regexp#===
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Regexp#===
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Psych::Visitors::ToRuby#register
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Array#push
/home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/psych/visitors/to_ruby.rb:330
ActiveRecord::Coders::YAMLColumn#assert_valid_value
$GemPath0/gems/activerecord-5.1.2/lib/active_record/coders/yaml_column.rb:32
Kernel#nil?
$GemPath0/gems/activerecord-5.1.2/lib/active_record/coders/yaml_column.rb:33
Kernel#is_a?
$GemPath0/gems/activerecord-5.1.2/lib/active_record/coders/yaml_column.rb:33