Utilisation des valeurs par défaut de reduce()

1 files changed, 4 insertions, 6 deletions

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),