From f61259e0d24e74a4bdf8dfae2fb037e03db3e3bf Mon Sep 17 00:00:00 2001
From: Oliver <oliver.henry.walters@gmail.com>
Date: Thu, 11 Apr 2024 10:05:20 +1000
Subject: [PATCH] Improve DB efficiency for user settings (#6996)

- Prefetch related user
- Prevents 1+N issue
---
 src/backend/InvenTree/common/api.py | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/backend/InvenTree/common/api.py b/src/backend/InvenTree/common/api.py
index f3e5066bde..50f6361e0b 100644
--- a/src/backend/InvenTree/common/api.py
+++ b/src/backend/InvenTree/common/api.py
@@ -258,6 +258,13 @@ class UserSettingsList(SettingsList):
         common.models.InvenTreeUserSetting.build_default_values(user=request.user)
         return super().list(request, *args, **kwargs)
 
+    def get_queryset(self):
+        """Return prefetched queryset."""
+        queryset = super().get_queryset()
+        queryset = queryset.prefetch_related('user')
+
+        return queryset
+
     def filter_queryset(self, queryset):
         """Only list settings which apply to the current user."""
         try: