Created: 2011-07-16 10:35
Updated: 2013-10-19 22:45
License: mit



  • If you settin up enum_attribute to existed your method,helpful method are added automatically.
  • It's useful for input type(select,checkbox,radio) in a form.
  • indication is through I18n.


To install enum_attribute, use the following command:

$ gem install enum_attribute

or write Gemfile and "bundle install"

$ gem 'enum_attribute', :git=>'https://github.com/eijik/enum_attribute.git'


###add in your model include EnumAttribute

###extend your method to model class enum_attribute :test, ['a','b','c']


  # class methods will be  defined.

  Aaa.tests         => ['a','b','c']
  Aaa.test_names    => [ t('activerecord.attributes.aaa.tests.a'),
                         t('activerecord.attributes.aaa.tests.c') ] 

  Aaa.test_name('a')  => t('activerecord.attributes.aaa.tests.a')

  Aaa.test_pairs    => [[t('activerecord.attributes.aaa.tests.a'),a],

  # test_pairs method is useful for select_tag
   select @aaa, Aaa.test_pairs 

  # instance methods also will be defined.
  @aaa = Aaa.new(:test=>'a')
  @aaa.test_name     => t('activerecord.attributes.aaa.tests.a')

####@params [Hash] options ####@options options [boolean] :number(false) if true, (name)_pairs method return number in 2nd array and change column name :column => (name)_id automatically! It will be useful for select type ex. seting in a model enum_attribute :test, ['a','b','c'] :number => true you can get object.test_pairs => [[a,1],[b,2],[c,3]]

####@options options [string] :column_name(false) attached column name in table of DB

ex. :column => it will be set when name and column name is difference

####@options options [boolean] :i18n(true) if i18n == false ,just return raw data


  • Check out the latest master to make sure the feature hasn't been implemented or the bug hasn't been fixed yet
  • Check out the issue tracker to make sure someone already hasn't requested it and/or contributed it
  • Fork the project
  • Start a feature/bugfix branch
  • Commit and push until you are happy with your contribution
  • Make sure to add tests for it. This is important so I don't break it in a future version unintentionally.
  • Please try not to mess with the Rakefile, version, or history. If you want to have your own version, or is otherwise necessary, that is fine, but please isolate to its own commit so I can cherry-pick around it.


Copyright (c) 2011 Eiji Kosaki. See LICENSE.txt for further details.

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