improve log

sync/signals.py

@@ -32,7 +32,7 @@ def presave_handler(sender, instance, **kwargs):
 
     users = related_users(instance)
 
-    logger.info(f'* {signal} : {instance.__class__.__name__} > impacted users = {users}')
+    logger.info(f'* {signal.__class__.__name__} : {instance.__class__.__name__} > impacted users = {users}')
 
     related_users_registry.register(instance.id, users)
     # user_ids = [user.id for user in users]