define_method_attribute

# File activerecord/lib/active_record/attribute_methods/read.rb, line 11
          def define_method_attribute(name, owner))
            ActiveModel::AttributeMethods::AttrNames.define_attribute_accessor_method(
              owner, name
            ) do |temp_method_name, attr_name_expr|
              owner.define_cached_method(name, as: temp_method_name, namespace: :active_record) do |batch|
                batch <<
                  "def #{temp_method_name}" <<
                  "  _read_attribute(#{attr_name_expr}) { |n| missing_attribute(n, caller) }" <<
                  "end"
              end
            end
          end