如何从delayed_job运行rake任务

Question

我想从delayed_job运行一个rake任务(apn:notifications:从apn_on_rails gem传递).换句话说,我想将一个延迟的工作排入队列,这个工作将调用apn:notifications:提供rake任务.

我发现这个代码http://pastie.org/157390从http://geminstallthat.wordpress.com/2008/02/25/run-rake-tasks-with-delayedjob-dj/.

我将此代码作为DelayedRake.rb添加到我的lib目录中:

require 'rake'
require 'fileutils'

class DelayedRake
  def initialize(task, options = {})
     @task     = task
     @options  = options
 end

  ##
  # Called by Delayed::Job.
  def perform
    FileUtils.cd RAILS_ROOT

    @rake = Rake::Application.new
    Rake.application = @rake
    ### Load all the Rake Tasks.
     Dir[ "./lib/tasks/**/*.rake" ].each { |ext| load ext }
     @options.stringify_keys!.each do |key, value|
      ENV[key] = value  
     end
    begin
       @rake[@task].invoke
    rescue => e
       RAILS_DEFAULT_LOGGER.error "[ERROR]: task \"#{@task}\" failed.  #{e}"
    end
 end
end

一切运行良好,直到delayed_job运行,它抱怨:

[错误]:任务"apn:notifications:deliver"失败.不知道如何构建任务'apn:notifications:deliver'

我如何让它知道apn_on_rails？我试过在DelayedRake的顶部要求'apn_on_rails_tasks',它没有做任何事情.我还尝试将rake任务目录更改为./lib/tasks/*.rake

我对Ruby/Rails有些新意.这是在heroku上运行2.3.5.

Answer 1

为什么不做系统调用？

system "rake apn:notifications:deliver"