StatesFor
=========

The states_for class method takes an ActiveRecord column and turns it into a field that has many states (represented by an INTEGER).

SVN:     http://hughbien.com/svn/public/states_for
Site:    http://hughbien.com/

Example
=======

    class User < ActiveRecord::BASE
      # users table should have a 'role' column of type INTEGER
      states_for :role => ["Client", "Employee", "Admin"]
      validates_inclusion_of_role :allow_nil => true, :message => "must be a client, employee, or admin"
    end
    
    hugh = User.new(:role => User::CLIENT)

This adds a few methods and constants:
* User::CLIENT            # => 0
* User::EMPLOYEE          # => 1
* User::ADMIN             # => 2

* User.roles              # => [0, 1, 2]
* User.options_for_role   # => [["Client", 0], ["Employee", 1], ["Admin", 2]]

* hugh.state_for_role     # => "Client"
* hugh.client?, user.employee?, user.admin?    # => returns true if user.role == User::CONSTANT

Copyright (c) 2007 Hugh Bien, released under the MIT license