method

alias_attribute

v8.0.0 - Show latest stable - 0 notes - Class: ActiveRecord::AttributeMethods::ClassMethods

1.0.0
1.1.6
1.2.6
2.0.3
2.1.0
2.2.1
2.3.8
3.0.0
3.0.9
3.1.0
3.2.1
3.2.8
3.2.13
4.0.2
4.1.8
4.2.1
4.2.7
4.2.9
5.0.0.1
5.1.7
5.2.3
6.0.0
6.1.3.1
6.1.7.7
7.0.0
7.1.3.2 (0)
7.1.3.4 (0)
7.2.3 (38)
8.0.0 (0)
8.1.1 (0)
What's this?

alias_attribute(new_name, old_name) public

Allows you to make aliases for attributes.

class Person < ActiveRecord::Base
  alias_attribute :nickname, :name
end

person = Person.create(name: 'Bob')
person.name     # => "Bob"
person.nickname # => "Bob"

The alias can also be used for querying:

Person.where(nickname: "Bob")
# SELECT "people".* FROM "people" WHERE "people"."name" = "Bob"

Show source

# File activerecord/lib/active_record/attribute_methods.rb, line 66
      def alias_attribute(new_name, old_name)
        super

        if @alias_attributes_mass_generated
          ActiveSupport::CodeGenerator.batch(generated_attribute_methods, __FILE__, __LINE__) do |code_generator|
            generate_alias_attribute_methods(code_generator, new_name, old_name)
          end
        end
      end

alias_attribute

Related methods