作业无法加载:带有延迟的作业和Rails 3的未初始化常量 [英] Job failed to load: uninitialized constant with Delayed Job and Rails 3

问题描述

我正在尝试在Rails 3应用程序中使用延迟作业"，但一直遇到障碍.作业不断失败，并显示以下错误: Job无法加载:未初始化的常量CrawlJob.

I'm trying to utilize Delayed Job in my Rails 3 app, but keep hitting a snag. The jobs keep failing with the error: Job failed to load: uninitialized constant CrawlJob.

我发现了其他几个SO线程，但没有遵循建议.这是相关的代码.

I found a couple of other SO threads and followed advice there to no avail. Here is the relevant code.

Application.rb

require File.expand_path('../boot', __FILE__)

require 'rails/all'

...

module Decurate
  class Application < Rails::Application

...

    config.autoload_paths += %W(#{config.root}/lib)
    config.autoload_paths += Dir["#{config.root}/lib/**/"]

...

  end
end

/lib/crawl_job.rb

class CrawlJob < Struct.new(:merchant_id,:ec2,:s3)
  def perform

...

  end
end

/lib/tasks/cron.rake

  merchants = Store.all.collect{ |store| store[:merchant_id] }
  merchants.each do |merchant_id|
    queue.push merchant_id
  end
  merchants.each do |merchant_id|
    Delayed::Job.enqueue CrawlJob.new(merchant_id,@ec2,@s3)
  end

推荐答案

对不起，每个人似乎都因为忘记了autoload_paths而忘记了重新启动工作进程.供参考，上述安排应起作用.只要记住要使用 rake jobs:work ！

Sorry everyone, it seems that I simply forgot to restart my worker processes as I was messing with the autoload_paths. For reference, the above arrangement should work. Just remember to start up a new worker with rake jobs:work!

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