set_options_for_callbacks!

# File activerecord/lib/active_record/transactions.rb, line 289
      def set_options_for_callbacks!(args, enforced_options = {})
        options = args.extract_options!.merge!(enforced_options)
        args << options

        if options[:on]
          fire_on = Array(options[:on])
          assert_valid_transaction_action(fire_on)
          options[:if] = Array(options[:if])
          options[:if] << "transaction_include_any_action?(#{fire_on})"
        end
      end