Use cachalot to invalidate caches

core/models.py

@@ -214,15 +214,6 @@ class NotificationRule(models.Model):
             raise ValueError(f"Invalid YAML: {e}")
         return parsed
 
-    @property
-    def matches(self):
-        """
-        Get the total number of matches for this rule.
-        """
-        if isinstance(self.match, dict):
-            truthy_values = [x for x in self.match.values() if x is not False]
-            return f"{len(truthy_values)}/{len(self.match)}"
-
     def get_notification_settings(self, check=True):
         """
         Get the notification settings for this rule.