undefined local variable or method `rolify' for User:Class (again)

[ehwinter]

Using Rails 3.2, ruby 2.1, rolify 4.0.0, Mongoid 3.1.6 I'm seeing the undefined local variable issue #57 again:

I have rolify in the appropriate spot (after include Mongoid::Document) i.e.:

  include Mongoid::Document
  include ActiveModel::Validations
  include Mongoid::Timestamps
  include ActiveModel::SecurePassword
  include Mongoid::Paperclip
...
  rolify

The problem is resolved when I add extend Rolify i.e.:

  include Mongoid::Document
  include ActiveModel::Validations
  include Mongoid::Timestamps
  include ActiveModel::SecurePassword
  include Mongoid::Paperclip
...
  extend Rolify
  rolify