Restart a jobqueue

[grayskripko]

I want to restart a job queue after being stopped.
So, I can start a task task() by a timer and I can stop it.
When I try to start it for the second time and timer() content works great but not task() at all

class MyBot:
        def __init__(self, some_params):
              self.updater = tg.Updater(TOKEN, ...)

        def start_bot(self):
            self.updater.start_pooling()

            def task():                  
                  ...logic...
        
            def timer(update: telegram.Update, context: telegram.ext.CallbackContext):
                context.job_queue.run_repeating(
                    task, poll,
                    context=update.message.chat_id, first=5)

            def stop(update: telegram.Update, context: telegram.ext.CallbackContext):
                context.job_queue.stop()

            handlers = [
                {'command': 'start', 'callback': timer},
                {'command': 'stop', 'callback': stop, 'pass_job_queue': False} ]
            for h in handlers:
                self.updater.dispatcher.add_handler(CommandHandler(**h))

            

[Poolitzer]

how do you start and stop the job queue? You dont have that in your code

[grayskripko]

@Poolitzer updated

[Poolitzer]

Okay, now I see where you stop the jobqueue, but you never start it.

Also, you put the updater polling part inside the job. This means you cant just start the jobqueue again with the /start command (thats what you want to do I guess), because - whenever you stop the queue the updater is stopped as well.

This whole setup looks weird. What exactly do you want to achieve?

[grayskripko]

@Poolitzer sorry, it was a mistake in the post. It's hard to simplify the code and correct it here, in the github text editor. I call pooling() outside of the task, definitely. I've fixed the example
So, I run MyBot().start_bot(). Then it works and accepts '/start' and '/stop' in telegram. But I can't start this bot for the second time. Nothing happens with the job queue. I debugged timer(), it works for the second run. But tasks are not executed.

[Poolitzer]

Now it doesnt look like jobqueue mangles with the updater, right.

I still see no logic where you actually start the job queue again. Or do you mean that you send /start twice and expect the task function to be called twice? Or from different account? Because yes, that should happen then, until you stop the queue.

[grayskripko]

@Poolitzer in Python:
MyBot().start_bot()
In telegram, sequentually:
/start # works as expected, job queue is started
/stop # works as expected
/start # runs everything in timer() function but not task()

In other words, /start works. /start after (/start, /stop) does not work

[Poolitzer]

Yes. Because you never start the job queue again after stopping it. But I dont think you actually want that. You probably want to stop the one job you use as a timer. Which wouldnt require you to stop the whole queue.

[grayskripko]

why I never start the job queue? I can't see it. I think the job queue is started by /start in telegram and then with the registered in the dispatcher timer()

[grayskripko]

I type /start, it runs timer(), then it starts the job queue, right?

[Poolitzer]

No. You start a job in start. But when you stop the whole queue in stop, you never restart it.

This is why I think what you actually want is to stop the job you start in the start function, not the whole job queue.