From 1ba5cda81bfeb19c98b80f172dca5ddc0b64ab4c Mon Sep 17 00:00:00 2001
From: Alban Gruin
Date: Sat, 27 Jan 2018 22:02:32 +0100
Subject: Préchargement des salles et des groupes des cours lorsqu’on liste les
 cours d’une salle pour économiser les requêtes et augmenter les performances

---
 models.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/models.py b/models.py
index 8ff9359..5d2fe17 100644
--- a/models.py
+++ b/models.py
@@ -198,7 +198,8 @@ class CourseManager(Manager):
             qs = qs.filter(groups__in=Group.objects.get_parents(obj),
                            **criteria).prefetch_related("rooms")
         elif isinstance(obj, Room):
-            qs = qs.filter(rooms__in=(obj,), **criteria)
+            qs = qs.filter(rooms=obj, **criteria).prefetch_related("rooms",
+                                                                   "groups")
         else:
             raise(TypeError, "obj must be a Group or a Room")
 
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