module TkhAuthenticationHelper
  def self.included(base)
    base.send(:include, InstanceMethods) 
    # base.before_filter :current_user
    # base.after_filter :my_method_2
  end

  module InstanceMethods
    # duplicated it from action controller extension. there must be a better way
    def current_user
      @current_user ||= User.find_by_auth_token!(cookies[:auth_token]) if cookies[:auth_token]
    end
  end
end