newforms-admin: Merged from trunk up to [7499].

git-svn-id: http://code.djangoproject.com/svn/django/branches/newforms-admin@7500 bcc190cf-cafb-0310-a4f2-bffc1f526a37

tests/regressiontests/queries/models.py

@@ -117,6 +117,24 @@ class LoopZ(models.Model):
     class Meta:
         ordering = ['z']
 
+# A model and custom default manager combination.
+class CustomManager(models.Manager):
+    def get_query_set(self):
+        return super(CustomManager, self).get_query_set().filter(public=True,
+                tag__name='t1')
+
+class ManagedModel(models.Model):
+    data = models.CharField(max_length=10)
+    tag = models.ForeignKey(Tag)
+    public = models.BooleanField(default=True)
+
+    objects = CustomManager()
+    normal_manager = models.Manager()
+
+    def __unicode__(self):
+        return self.data
+
+
 __test__ = {'API_TESTS':"""
 >>> t1 = Tag(name='t1')
 >>> t1.save()
@@ -658,5 +676,30 @@ Bug #7098 -- Make sure semi-deprecated ordering by related models syntax still
 works.
 >>> Item.objects.values('note__note').order_by('queries_note.note', 'id')
 [{'note__note': u'n2'}, {'note__note': u'n3'}, {'note__note': u'n3'}, {'note__note': u'n3'}]
+
+Bug #7096 -- Make sure exclude() with multiple conditions continues to work.
+>>> Tag.objects.filter(parent=t1, name='t3').order_by('name')
+[<Tag: t3>]
+>>> Tag.objects.exclude(parent=t1, name='t3').order_by('name')
+[<Tag: t1>, <Tag: t2>, <Tag: t4>, <Tag: t5>]
+>>> Item.objects.exclude(tags__name='t1', name='one').order_by('name').distinct()
+[<Item: four>, <Item: three>, <Item: two>]
+>>> Item.objects.filter(name__in=['three', 'four']).exclude(tags__name='t1').order_by('name')
+[<Item: four>, <Item: three>]
+
+More twisted cases, involving nested negations.
+>>> Item.objects.exclude(~Q(tags__name='t1', name='one'))
+[<Item: one>]
+>>> Item.objects.filter(~Q(tags__name='t1', name='one'), name='two')
+[<Item: two>]
+>>> Item.objects.exclude(~Q(tags__name='t1', name='one'), name='two')
+[<Item: four>, <Item: one>, <Item: three>]
+
+Bug #7095
+Updates that are filtered on the model being updated are somewhat tricky to get
+in MySQL. This exercises that case.
+>>> mm = ManagedModel.objects.create(data='mm1', tag=t1, public=True)
+>>> ManagedModel.objects.update(data='mm')
+
 """}