refac: access controls

backend/open_webui/models/users.py

@@ -2,7 +2,12 @@ import time
 from typing import Optional
 
 from open_webui.internal.db import Base, JSONField, get_db
+
+
 from open_webui.models.chats import Chats
+from open_webui.models.groups import Groups
+
+
 from pydantic import BaseModel, ConfigDict
 from sqlalchemy import BigInteger, Column, String, Text
 
@@ -268,9 +273,11 @@ class UsersTable:
 
     def delete_user_by_id(self, id: str) -> bool:
         try:
+            # Remove User from Groups
+            Groups.remove_user_from_all_groups(id)
+
             # Delete User Chats
             result = Chats.delete_chats_by_user_id(id)
-
             if result:
                 with get_db() as db:
                     # Delete User