From 8f9c5eb32c6cf27aa84d1cbf14b7aaaa00acc0b9 Mon Sep 17 00:00:00 2001
From: Alban Gruin
Date: Tue, 16 Jan 2018 20:31:20 +0100
Subject: Utilisation des valeurs par défaut de reduce()

---
 models.py | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

(limited to 'models.py')

diff --git a/models.py b/models.py
index 363cf33..56c1845 100644
--- a/models.py
+++ b/models.py
@@ -93,12 +93,10 @@ class Timetable(SlugModel):
 
 class GroupManager(Manager):
     def get_parents(self, group):
-        groups_criteria = Q(subgroup="")
-
-        if len(group.subgroup) != 0:
-            groups_criteria |= reduce(lambda x, y: x | y,
-                                      [Q(subgroup=group.subgroup[:i])
-                                       for i in range(1, len(group.subgroup) + 1)])
+        groups_criteria = reduce(lambda x, y: x | y,
+                                 [Q(subgroup=group.subgroup[:i])
+                                    for i in range(1, len(group.subgroup) + 1)],
+                                 Q(subgroup=""))
 
         return self.get_queryset().filter(groups_criteria,
                                           Q(semester=None) | Q(semester=group.semester),
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