Rails 3 / Enum Support¶ ↑

Provides rudimentary enum support for Rails 3 model classes.

Getting Started¶ ↑

1. Require the enum_support gem in each model class you wish to use it in:

   require 'enum_support'
   

2. Then, make sure to extend the module:

   Class IceCream < ActiveRecord::Base
     extend EnumSupport
   

3. Finally, specify as many enum attributes as you want within the class:

   enum :flavour, %w{vanilla chocolate strawberry neopolitan}
   

At this point, you can use your enumeration just as you would with any other attribute you specify:

yum = IceCream.new
yum.flavour = :chocolate
yum.flavour # returns :chocolate

Validation is also performed when attempting to save a model instance. Setting an enum attribute to a value not in the initial set will render the instance invalid.