module Doorkeeper::Models::Scopes

def self.included(base)
  base.class_eval do
    define_method :scopes do
      Doorkeeper::OAuth::Scopes.from_string(self[:scopes])
    end
    define_method :scopes_string do
      Doorkeeper::OAuth::Scopes.from_string(self[:scopes]).to_s
    end
  end
end