ruby-on-rails-4 - 如何扩展 ActiveJob 以访问 delay_job 的失败/错误 Hook ？

Question

我正在使用 rails ActiveJob 的 delay_job 适配器，但希望仍然能够访问 delay_job 的 error and failure hooks当作业出错或失败时触发通知邮件程序。

我想我已经找到了 ActiveJob code我需要扩展以合并delayed_job 的错误和失败方法。

我如何扩展下面的 JobWrapper 类以包含 delay_job 的错误和失败方法，以便我可以在逐个作业的基础上使用自定义错误/失败代码？

require "delayed_job"

module ActiveJob

  module QueueAdapters

    class DelayedJobAdapter

      def enqueue(job)
        delayed_job = Delayed::Job.enqueue(JobWrapper.new(job.serialize), queue: job.queue_name, priority: job.priority)
        job.provider_job_id = delayed_job.id
        delayed_job
      end

      def enqueue_at(job, timestamp)
        delayed_job = Delayed::Job.enqueue(JobWrapper.new(job.serialize), queue: job.queue_name, priority: job.priority, run_at: Time.at(timestamp))
        job.provider_job_id = delayed_job.id
        delayed_job
      end

      class JobWrapper
        attr_accessor :job_data

        def initialize(job_data)
          @job_data = job_data
        end

        def perform
          Base.execute(job_data)
        end
      end
    end
  end
end

Answer 1

我相信这就是你想要的

module ActiveJob
  module QueueAdapters
    class DelayedJobAdapter
      class JobWrapper
        def failure(job)
          job_data = Base.deserialize(job.payload_object.job_data)
          job_data.failure(job) if job_data.respond_to?(:failure)
        end
      end
    end
  end
end

我已将此问题/补丁发布到 rails 问题
https://github.com/rails/rails/issues/30205