mirror of
https://github.com/ae-utbm/sith.git
synced 2024-11-01 11:58:04 +00:00
16 lines
634 B
Python
16 lines
634 B
Python
from django.core.cache import cache
|
|
from django.db.models.signals import m2m_changed
|
|
from django.dispatch import receiver
|
|
|
|
from core.models import User
|
|
|
|
|
|
@receiver(m2m_changed, sender=User.groups.through, dispatch_uid="user_groups_changed")
|
|
def user_groups_changed(sender, instance: User, **kwargs):
|
|
"""Clear the cached groups of the user."""
|
|
# As a m2m relationship doesn't live within the model
|
|
# but rather on an intermediary table, there is no
|
|
# model method to override, meaning we must use
|
|
# a signal to invalidate the cache when a user is removed from a group
|
|
cache.delete(f"user_{instance.pk}_groups")
|