replace signals by save and delete override

core/apps.py

@@ -34,7 +34,6 @@ class SithConfig(AppConfig):
 
     def ready(self):
         from forum.models import Forum
-        import core.signals
 
         def clear_cached_memberships(**kwargs):
             Forum._club_memberships = {}

core/models.py

@@ -90,6 +90,16 @@ class Group(AuthGroup):
         """
         return reverse("core:group_list")
 
+    def save(self, *args, **kwargs):
+        super().save(*args, **kwargs)
+        cache.set(f"sith_group_{self.id}", self)
+        cache.set(f"sith_group_{self.name.replace(' ', '_')}", self)
+
+    def delete(self, *args, **kwargs):
+        super().delete(*args, **kwargs)
+        cache.delete(f"sith_group_{self.id}")
+        cache.delete(f"sith_group_{self.name.replace(' ', '_')}")
+
 
 class MetaGroup(Group):
     """

core/signals.py

@@ -1,54 +0,0 @@
-# -*- coding:utf-8 -*
-#
-# Copyright 2023
-# - Maréchal <thgirod@hotmail.com>
-#
-# Ce fichier fait partie du site de l'Association des Étudiants de l'UTBM,
-# http://ae.utbm.fr.
-#
-# This program is free software; you can redistribute it and/or modify it under
-# the terms of the GNU General Public License a published by the Free Software
-# Foundation; either version 3 of the License, or (at your option) any later
-# version.
-#
-# This program is distributed in the hope that it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
-# FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
-# details.
-#
-# You should have received a copy of the GNU General Public License along with
-# this program; if not, write to the Free Sofware Foundation, Inc., 59 Temple
-# Place - Suite 330, Boston, MA 02111-1307, USA.
-#
-#
-
-
-from django.core.cache import cache
-from django.db.models.signals import pre_delete, pre_save
-from django.dispatch import receiver
-
-from club.models import Club, Membership
-from core.models import Group
-
-
-@receiver(pre_delete, sender=Club, dispatch_uid="clear_cached_memberships")
-def clear_cached_memberships(sender, instance: Club, **_kwargs):
-    """
-    When a club is deleted, clear the cache of the memberships
-    associated with this club
-    """
-    for membership in instance.members.ongoing():
-        cache.delete(f"membership_{membership.club.id}_{membership.user.id}")
-
-
-@receiver(
-    pre_delete,
-    sender=Group,
-    dispatch_uid="clear_cached_user_groups",
-)
-def clear_cached_user_groups(sender, instance: Group, **_kwargs):
-    """
-    When the membership of a user is deleted or edited, clear the associated cache
-    """
-    cache.delete(f"sith_group_{instance.id}")
-    cache.delete(f"sith_group_{instance.name.replace(' ', '_')}")