foodsoft/plugins/printer/lib/foodsoft_printer/order_printer_jobs.rb

module FoodsoftPrinter
  module OrderPrinterJobs
    def self.included(base) # :nodoc:
      base.class_eval do
        has_many :printer_jobs, dependent: :destroy

        alias_method :foodsoft_printer_orig_finish!, :finish!

        def finish!(user)
          foodsoft_printer_orig_finish!(user)
          return if finished?

          printer_jobs.unfinished.each do |job|
            job.add_update! 'ready'
          end
        end
      end
    end

    def self.install
      Order.send :include, self
    end
  end
end