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-rw-r--r--main/models.py13
1 files changed, 9 insertions, 4 deletions
diff --git a/main/models.py b/main/models.py
index db456c20..caf36be0 100644
--- a/main/models.py
+++ b/main/models.py
@@ -460,12 +460,17 @@ class Todolist(models.Model):
def __unicode__(self):
return self.name
+ _packages = None
+
@property
def packages(self):
- # select_related() does not use LEFT OUTER JOIN for nullable ForeignKey
- # fields. That is why we need to explicitly list the ones we want.
- return TodolistPkg.objects.select_related(
- 'pkg__repo', 'pkg__arch').filter(list=self).order_by('pkg')
+ if not self._packages:
+ # select_related() does not use LEFT OUTER JOIN for nullable
+ # ForeignKey fields. That is why we need to explicitly list the
+ # ones we want.
+ self._packages = TodolistPkg.objects.select_related(
+ 'pkg__repo', 'pkg__arch').filter(list=self).order_by('pkg')
+ return self._packages
@property
def package_names(self):