Resque-Scheduler not working with ActiveJob in Rails 4.2

Question

Has anyone been able to get scheduled jobs to work in Rails 4.2?

I am using resque, and I am attempting to use resque-scheduler to schedule jobs. I have a schedule

Answer 1

It seems that ActiveJob in Rails 4.2 is not supported by resque-scheduler. Therefore, jobs are not scheduled correctly, that explains the difference in the log when a job is enqueued using ActiveJob API and resque-scheduler.

To fix this, we should find a way to schedule job within ActiveJob wrapper:

ActiveJob::QueueAdapters::ResqueAdapter::JobWrapper

Resque-scheduler provides the way to support extensions that are not supported by default. To do this, we should extend custom job class to support the #scheduled method. This way we can enqueue job manually using ActiveJob API.

The easiest way is to write general code method in the base job, and then extend all jobs from it:

# custom base job
class Job < ActiveJob::Base

    # method called by resque-scheduler to enqueue job in a queue
    def self.scheduled(queue, klass, *args)

        # create the job instance and pass the arguments
        job = self.job_or_instantiate(*args)

        # set correct queue
        job.queue_name = queue

        # enqueue job using ActiveJob API
        job.enqueue
    end
end

Reque-scheduler will call this method to schedule every single job extended from Job class. This way jobs are going to be enqueued within the ActiveJob wrapper. Result will be same as calling MyJob.perform_later(*args).