core: improve notification callback system

Signed-off-by: Skia <skia@libskia.so>

core/models.py

@@ -1094,13 +1094,18 @@ class Notification(models.Model):
             return self.get_type_display() % self.param
         return self.get_type_display()
 
+    def callback(self):
+        # Get the callback defined in settings to update existing
+        # notifications
+        mod_name, func_name = settings.SITH_PERMANENT_NOTIFICATIONS[self.type].rsplit('.',1)
+        mod = importlib.import_module(mod_name)
+        getattr(mod, func_name)(self)
+
     def save(self, *args, **kwargs):
         if not self.id and self.type in settings.SITH_PERMANENT_NOTIFICATIONS:
             old_notif = self.user.notifications.filter(type=self.type).last()
             if old_notif:
-                mod_name, func_name = settings.SITH_PERMANENT_NOTIFICATIONS[self.type].rsplit('.',1)
-                mod = importlib.import_module(mod_name)
-                getattr(mod, func_name)(old_notif)
+                old_notif.callback()
                 old_notif.save()
                 return
         super(Notification, self).save(*args, **kwargs)

core/views/site.py

@@ -62,6 +62,8 @@ def notification(request, notif_id):
     if notif:
         if notif.type not in settings.SITH_PERMANENT_NOTIFICATIONS:
             notif.viewed = True
+        else:
+            notif.callback()
         notif.save()
         return redirect(notif.url)
     return redirect("/")