FakeEnum

A gem which define enum classes with constants.

Installation

Add this line to your application's Gemfile:

gem 'fake_enum'

And then execute:

$ bundle

Or install it yourself as:

$ gem install fake_enum

Usage

To use enum, just create a class which extends fake_enum

class Status
    extend FakeEnum

    ACTIVE   = 1
    ARCHIVED = 2
    DELETED  = 3
end
class Task < ActiveRecord::Base
  attr_accessible :status, :name, :description

  validates :name, :description, :presence => true
  validates :status, :inclusion => { :in => Status.to_a, :message => "%{value} is not a valid status" }
end

Translations

fake_enum uses I18n for translations and leverages the namespace of the activerecord:

en:
  activerecord:
    fake_enums:
      status:
        active: 'Active'
        archived: 'Archived'
        deleted: 'Deleted'

Methods

fake_enum offers some methods to help you:

Status::ACTIVE or Status.from_s 'ACTIVE' will return 1

Status.to_s 2 will return the string which represents the enum 2: 'ARCHIVED'

Status.to_sym 3 will return the symbol which represents the enum 3: :deleted

Status.localize 1 will return the translation for enum 1: 'Active'

Status.to_a will return an array of enums: [1, 2, 3]

Status.to_localized_a will return an array of translated enums: ['Ative', 'Archived', 'Deleted']

Status.to_localized_hash will return a hash with translated enums: { "Active" => "1", "Archived" => "2", "Deleted" => "3" }

Contributing

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request