Object#block in <main>
(pry):11
Student#read_attribute
$GemPath0/gems/activerecord-5.1.2/lib/active_record/attribute_methods/read.rb:50
Kernel#class
$GemPath0/gems/activerecord-5.1.2/lib/active_record/attribute_methods/read.rb:51
Student.attribute_alias?
$GemPath0/gems/activemodel-5.1.2/lib/active_model/attribute_methods.rb:218
Student.attribute_aliases -> block (4 levels) in class_attribute
$GemPath0/gems/activesupport-5.1.2/lib/active_support/core_ext/class/attribute.rb:90
Student.block (4 levels) in class_attribute
$GemPath0/gems/activesupport-5.1.2/lib/active_support/core_ext/class/attribute.rb:90
Symbol#to_s
$GemPath0/gems/activemodel-5.1.2/lib/active_model/attribute_methods.rb:219
Hash#key?
$GemPath0/gems/activemodel-5.1.2/lib/active_model/attribute_methods.rb:219
Symbol#to_s
$GemPath0/gems/activerecord-5.1.2/lib/active_record/attribute_methods/read.rb:54
Student#_read_attribute
$GemPath0/gems/activerecord-5.1.2/lib/active_record/attribute_methods/read.rb:70
String#to_s
$GemPath0/gems/activerecord-5.1.2/lib/active_record/attribute_methods/read.rb:71
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#[]
$GemPath0/gems/activerecord-5.1.2/lib/active_record/attribute_set/builder.rb:41
ActiveRecord::Attribute::FromDatabase#value
$GemPath0/gems/activerecord-5.1.2/lib/active_record/attribute.rb:36