devise hack with resque mailer

devise_mailer.rb

##HACK - dmp - we must return an unserialized version of resource 
##so copy devise's method and use a finder for resource

require "devise"
require Rails.root.join("lib/resque/mailer")
Devise::Mailers::Helpers.send(:alias_method, :old_initialize_from_record, :initialize_from_record)

module Devise
  module Mailers 
    module Helpers
      include Resque::Mailer

      alias_method :old_initialize_from_record, :initialize_from_record

      protected
      def initialize_from_record(record)
        ActiveRecord::Base.verify_active_connections! unless Rails.env.test?
        if record.kind_of?(Hash)

          #if we use another devise mapping we can't hardcode User
          record = User.find(record["user"]["id"])
        end
        old_initialize_from_record(record)
      end
    end
  end
end