From 200bc5bd3d56ca2c1cd1a7cedab63e4cce0f5b5f Mon Sep 17 00:00:00 2001
From: Oliver <oliver.henry.walters@gmail.com>
Date: Mon, 25 Sep 2023 13:24:39 +1000
Subject: [PATCH] Use prefetch to improve query efficiency (#5613)

- Significantly improves performance of users.models.update_group_roles() function
- Ref: https://github.com/inventree/InvenTree/pull/5612
---
 InvenTree/users/models.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/InvenTree/users/models.py b/InvenTree/users/models.py
index 91e7cd40c0..488b9d4c93 100644
--- a/InvenTree/users/models.py
+++ b/InvenTree/users/models.py
@@ -376,7 +376,7 @@ def update_group_roles(group, debug=False):
 
     # Iterate through each permission already assigned to this group,
     # and create a simplified permission key string
-    for p in group.permissions.all():
+    for p in group.permissions.all().prefetch_related('content_type'):
         (permission, app, model) = p.natural_key()
 
         permission_string = '{app}.{perm}'.format(