Callback after delayed_job process job

I need to update a model after delayed_job processes a task on it, e.g:

foo.delay.something

After something is done, I need to update the foo开发者_JAVA百科 object, what is the best way to achieve this? I was thinking in coding a callback on the Delayed::Backend::ActiveRecord::Job class, but there's should be something cleaner and better to do this.

I would just updated it at the end of the #foo method:

def foo
  # do work here
  update_attribute :processed, true
end

I don't understand why you wouldn't do it as part of the job that's already acting on the object.

updating a record as suggested is fine , but it's only part of the solution ...

a callback would help if I want more control on what to do if it fails .. i.e. :

Delayed::Job.enqueue InstructionRequestJob.new( p1, p2 )

InstructionRequestJob perform
- perform a task on a remote server
- get a response
- case response
  when OK
    update attribute ( as suggested)
  else
    # how many attempts ?
    if too_many_attempts
       update attribute
       destroy the job
    else
       reschedule the job for another attempt
- end