From 7ebbed7267fb3ab1eaa206b4715e5343f2e83053 Mon Sep 17 00:00:00 2001
From: Jason Ward <jason.ward@policystat.com>
Date: Wed, 3 Jul 2013 12:06:08 -0400
Subject: [PATCH] refs #9: no longer doing dependent sub-queries

---
 authority/permissions.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/authority/permissions.py b/authority/permissions.py
index 6431cd3..7cc55d1 100644
--- a/authority/permissions.py
+++ b/authority/permissions.py
@@ -48,8 +48,12 @@ class BasePermission(object):
         """
         if not self.user:
             return {}, {}
+        group_pks = set(self.user.groups.values_list(
+            'pk',
+            flat=True,
+        ))
         perms = Permission.objects.filter(
-            Q(user__pk=self.user.pk) | Q(group__in=self.user.groups.all()),
+            Q(user__pk=self.user.pk) | Q(group__pk__in=group_pks),
         )
         user_permissions = {}
         group_permissions = {}