Ticket #26667: 26667-test.diff

docs/releases/1.9.7.txt

@@ -20 +20 @@
 
 * Fixed ``on_commit`` callbacks execution order when callbacks make
   transactions (:ticket:`26627`).
+
+* Fixed a regression in queries on a ``OneToOneField`` that has ``to_field``
+  and ``primary_key=True`` (:ticket:`26667`).

tests/one_to_one/models.py

@@ -98 +98 @@
     target = models.OneToOneField(Target, models.CASCADE, related_name='hidden+')
 
 
+class ToFieldPointer(models.Model):
+    target = models.OneToOneField(Target, models.CASCADE, to_field='name', primary_key=True)
+
+
 # Test related objects visibility.
 class SchoolManager(models.Manager):
     def get_queryset(self):

tests/one_to_one/tests.py

@@ -6 +6 @@
 
 from .models import (
     Bar, Director, Favorites, HiddenPointer, ManualPrimaryKey, MultiModel,
-    Place, Pointer, RelatedModel, Restaurant, School, Target, UndergroundBar,
-    Waiter,
+    Place, Pointer, RelatedModel, Restaurant, School, Target, ToFieldPointer,
+    UndergroundBar, Waiter,
 )
 
 
@@ -530 +530 @@
         r = Restaurant.objects.first()
         r2 = Restaurant.objects.filter(pk__exact=r).first()
         self.assertEqual(r, r2)
+
+    def test_primary_key_to_field_filter(self):
+        target = Target.objects.create()
+        pointer = ToFieldPointer.objects.create(target=target)
+        self.assertQuerysetEqual(ToFieldPointer.objects.filter(target=target), [pointer], lambda x: x)