Backend: Database - celery.backends.database¶

celery.backends.database

class celery.backends.database.Backend(*args, **kwargs)¶

The database backends. Using Django models to store task metadata.

cleanup()¶

Delete expired metadata.

get_result(task_id)¶

Get the result for a task.

get_status(task_id)¶

Get the status of a task.

get_traceback(task_id)¶

Get the traceback of a failed task.

init_periodic_tasks()¶

Create entries for all periodic tasks in the database.

is_done(task_id)¶

Returns True if task with task_id has been executed.

run_periodic_tasks()¶

Run all waiting periodic tasks.

Returns:	a list of (task, task_id) tuples containing the task class and id for the resulting tasks applied.

store_result(task_id, result, status, traceback=None)¶

Store return value and status of an executed task.