refinery_page_extensions.rb

module MyApp
  module Extensions

    module Page

      def self.included(base)
        base.class_eval do
          belongs_to :account
        end
      end

    end


    module PagesController

      def self.included(base)
        base.class_eval do
          def find_all_pages
            super
            # this is what I think I want to do if I ever get there
            @pages.where(:account_id => current_user.account_id)
          end
        end
      end

    end

  end
end

# in application.rb:

    config.before_initialize do
       require 'refinery_page_extensions'
     end

     config.to_prepare do
       Page.send :include, MyApp::Extensions::Page
       Admin::PagesController.send :include, MyApp::Extensions::PagesController
     end