class ActiveJob::QueueAdapters::QuAdapter

Rails.application.config.active_job.queue_adapter = :qu
To use Qu set the queue_adapter config to :qu.
Read more about Qu here.
requeued when worker is killed, resque-like API.
The advantages of Qu are: Multiple backends (redis, mongo), jobs are
some shortcomings in the existing queuing libraries.
heavily inspired by delayed_job and Resque. Qu was created to overcome
Qu is a Ruby library for queuing and processing background jobs. It is
== Qu adapter for Active Job

def enqueue(job, *args) #:nodoc:

:nodoc: 
def enqueue(job, *args) #:nodoc:
  qu_job = Qu::Payload.new(klass: JobWrapper, args: [job.serialize]).tap do |payload|
    payload.instance_variable_set(:@queue, job.queue_name)
  end.push
  
  # qu_job can be nil depending on the configured backend
  job.provider_job_id = qu_job.id unless qu_job.nil?
  qu_job
end

def enqueue_at(job, timestamp, *args) #:nodoc:

:nodoc: 
def enqueue_at(job, timestamp, *args) #:nodoc:
  raise NotImplementedError, "This queueing backend does not support scheduling jobs. To see what features are supported go to http://api.rubyonrails.org/classes/ActiveJob/QueueAdapters.html"
end