Module ActiveRecord::AttributeMethods::Write::ClassMethods

# File activerecord/lib/active_record/attribute_methods/write.rb, line 12
def define_method_attribute=(attr_name)
  if attr_name =~ ActiveModel::AttributeMethods::NAME_COMPILABLE_REGEXP
    generated_attribute_methods.module_eval("def #{attr_name}=(new_value); write_attribute('#{attr_name}', new_value); end", __FILE__, __LINE__)
  else
    generated_attribute_methods.send(:define_method, "#{attr_name}=") do |new_value|
      write_attribute(attr_name, new_value)
    end
  end
end