EnumField¶ ↑

Macro to help with enumerations in an Active Record column.

Usage¶ ↑

This gem encapsulates a validates_inclusion_of and automatically gives you a few more goodies automatically. That’s it!

class Computer < ActiveRecord:Base
  enum_field :status, ['on', 'off', 'standby', 'sleep', 'out of this world']

  # Optionally with a message to replace the default one
  # enum_field :status, ['on', 'off', 'standby', 'sleep', 'out of this world'], :message => "incorrect status"

  #...
end

This will give you a few things:

• add a validates_inclusion_of with a simple error message (“invalid #{field}”) or your custom message

• define the following query methods, in the name of expressive code:

  • on?

  • off?

  • standby?

  • sleep?

  • out_of_this_world?

• define the STATUSES constant, which contains the acceptable values

License¶ ↑

Copyright © 2008 James Golick, released under the MIT license