gva/gnuviechadmin/managemails/signals.py

62 lines
1.9 KiB
Python

"""
This module contains the signal handlers of the :py:mod:`managemails` app.
The module starts Celery_ tasks.
.. _Celery: https://www.celeryproject.org/
"""
import logging
from django.db.models.signals import post_delete, post_save
from django.dispatch import receiver
from fileservertasks.tasks import create_file_mailbox, delete_file_mailbox
from managemails.models import Mailbox
from taskresults.models import TaskResult
_LOGGER = logging.getLogger(__name__)
@receiver(post_save, sender=Mailbox)
def handle_mailbox_created(sender, instance, created, **kwargs):
"""
Handles post creation actions on :py:class:`Mailbox <managemails.models.Mailbox>` instances.
:param sender: sender of the signal
:param instance: Mailbox instance
:param created: whether the instance has just been created
This signal handler starts a Celery_ task.
"""
if created:
task_result = TaskResult.objects.create_task_result(
"handle_mailbox_created",
create_file_mailbox.s(instance.osuser.username, instance.username),
)
_LOGGER.info(
"Mailbox creation has been requested in task %s", task_result.task_id
)
_LOGGER.debug(
"mailbox %s has been %s", instance, created and "created" or "updated"
)
@receiver(post_delete, sender=Mailbox)
def handle_mailbox_deleted(sender, instance, **kwargs):
"""
Handles cleanup actions to be done after deletion of a
:py:class:`Mailbox <managemails.models.Mailbox>` instance.
:param sender: sender of the signal
:param instance: Mailbox instance
This signal handler starts a Celery_ task.
"""
task_result = TaskResult.objects.create_task_result(
"handle_mailbox_deleted",
delete_file_mailbox.s(instance.osuser.username, instance.username),
)
_LOGGER.info("Mailbox deletion has been requested in task %s", task_result.task_id)