Module: ActiveJob::Callbacks::ClassMethods

Defined in:
activejob/lib/active_job/callbacks.rb

Overview

These methods will be included into any Active Job object, adding callbacks for perform and enqueue methods.

Instance Method Summary collapse

Instance Method Details

#after_enqueue(*filters, &blk) ⇒ Object

Defines a callback that will get called right after the job is enqueued.

class VideoProcessJob < ActiveJob::Base
  queue_as :default

  after_enqueue do |job|
    $statsd.increment "enqueue-video-job.success"
  end

  def perform(video_id)
    Video.find(video_id).process
  end
end


142
143
144
# File 'activejob/lib/active_job/callbacks.rb', line 142

def after_enqueue(*filters, &blk)
  set_callback(:enqueue, :after, *filters, &blk)
end

#after_perform(*filters, &blk) ⇒ Object

Defines a callback that will get called right after the job’s perform method has finished.

class VideoProcessJob < ActiveJob::Base
  queue_as :default

  after_perform do |job|
    UserMailer.notify_video_processed(job.arguments.first)
  end

  def perform(video_id)
    Video.find(video_id).process
  end
end


84
85
86
# File 'activejob/lib/active_job/callbacks.rb', line 84

def after_perform(*filters, &blk)
  set_callback(:perform, :after, *filters, &blk)
end

#around_enqueue(*filters, &blk) ⇒ Object

Defines a callback that will get called around the enqueuing of the job.

class VideoProcessJob < ActiveJob::Base
  queue_as :default

  around_enqueue do |job, block|
    $statsd.time "video-job.process" do
      block.call
    end
  end

  def perform(video_id)
    Video.find(video_id).process
  end
end


163
164
165
# File 'activejob/lib/active_job/callbacks.rb', line 163

def around_enqueue(*filters, &blk)
  set_callback(:enqueue, :around, *filters, &blk)
end

#around_perform(*filters, &blk) ⇒ Object

Defines a callback that will get called around the job’s perform method.

class VideoProcessJob < ActiveJob::Base
  queue_as :default

  around_perform do |job, block|
    UserMailer.notify_video_started_processing(job.arguments.first)
    block.call
    UserMailer.notify_video_processed(job.arguments.first)
  end

  def perform(video_id)
    Video.find(video_id).process
  end
end


104
105
106
# File 'activejob/lib/active_job/callbacks.rb', line 104

def around_perform(*filters, &blk)
  set_callback(:perform, :around, *filters, &blk)
end

#before_enqueue(*filters, &blk) ⇒ Object

Defines a callback that will get called right before the job is enqueued.

class VideoProcessJob < ActiveJob::Base
  queue_as :default

  before_enqueue do |job|
    $statsd.increment "enqueue-video-job.try"
  end

  def perform(video_id)
    Video.find(video_id).process
  end
end


123
124
125
# File 'activejob/lib/active_job/callbacks.rb', line 123

def before_enqueue(*filters, &blk)
  set_callback(:enqueue, :before, *filters, &blk)
end

#before_perform(*filters, &blk) ⇒ Object

Defines a callback that will get called right before the job’s perform method is executed.

class VideoProcessJob < ActiveJob::Base
  queue_as :default

  before_perform do |job|
    UserMailer.notify_video_started_processing(job.arguments.first)
  end

  def perform(video_id)
    Video.find(video_id).process
  end
end


65
66
67
# File 'activejob/lib/active_job/callbacks.rb', line 65

def before_perform(*filters, &blk)
  set_callback(:perform, :before, *filters, &blk)
end

#inherited(klass) ⇒ Object



44
45
46
47
48
# File 'activejob/lib/active_job/callbacks.rb', line 44

def inherited(klass)
  klass.get_callbacks(:enqueue).config[:skip_after_callbacks_if_terminated] = skip_after_callbacks_if_terminated
  klass.get_callbacks(:perform).config[:skip_after_callbacks_if_terminated] = skip_after_callbacks_if_terminated
  super
end