• 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