Use pre_delete signal insted of Model.delete() to prevent note balance issues when deleting a transaction (don't do it) in Django Admin

apps/note/apps.py

@@ -3,7 +3,7 @@
 
 from django.apps import AppConfig
 from django.conf import settings
-from django.db.models.signals import post_save
+from django.db.models.signals import post_save, pre_delete
 from django.utils.translation import gettext_lazy as _
 
 from . import signals
@@ -25,3 +25,8 @@ class NoteConfig(AppConfig):
             signals.save_club_note,
             sender='member.Club',
         )
+
+        pre_delete.connect(
+            signals.delete_transaction,
+            sender='note.transaction',
+        )