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Code Issues 32 Releases Wiki Activity

[1.6.x] Fixed #21787 -- regression in MTI .exclude() queries

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Backpatch of 78a2617703 from master.
This commit is contained in:
Anssi Kääriäinen
2014-01-20 18:28:16 +02:00
parent c91e772b3a
commit e47b90e48f
2 changed files with 24 additions and 2 deletions
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8
django/db/models/sql/query.py
View File

@@ -1256,6 +1256,7 @@ class Query(object):
"""
path, names_with_path = [], []
for pos, name in enumerate(names):
cur_names_with_path = (name, [])
if name == 'pk':
name = opts.pk.name
try:
@@ -1288,19 +1289,22 @@ class Query(object):
targets = (final_field.rel.get_related_field(),)
opts = int_model._meta
path.append(PathInfo(final_field.model._meta, opts, targets, final_field, False, True))
cur_names_with_path[1].append(PathInfo(final_field.model._meta, opts, targets, final_field, False, True))
if hasattr(field, 'get_path_info'):
pathinfos = field.get_path_info()
if not allow_many:
for inner_pos, p in enumerate(pathinfos):
if p.m2m:
names_with_path.append((name, pathinfos[0:inner_pos + 1]))
cur_names_with_path[1].extend(pathinfos[0:inner_pos + 1])
names_with_path.append(cur_names_with_path)
raise MultiJoin(pos + 1, names_with_path)
last = pathinfos[-1]
path.extend(pathinfos)
final_field = last.join_field
opts = last.to_opts
targets = last.target_fields
names_with_path.append((name, pathinfos))
cur_names_with_path[1].extend(pathinfos)
names_with_path.append(cur_names_with_path)
else:
# Local non-relational field.
final_field = field

18
tests/queries/tests.py
View File

@@ -3008,3 +3008,21 @@ class Ticket21203Tests(TestCase):
qs = Ticket21203Child.objects.select_related('parent').defer('parent__created')
self.assertQuerysetEqual(qs, [c], lambda x: x)
self.assertIs(qs[0].parent.parent_bool, True)
class ForeignKeyToBaseExcludeTests(TestCase):
def test_ticket_21787(self):
sc1 = SpecialCategory.objects.create(special_name='sc1', name='sc1')
sc2 = SpecialCategory.objects.create(special_name='sc2', name='sc2')
sc3 = SpecialCategory.objects.create(special_name='sc3', name='sc3')
c1 = CategoryItem.objects.create(category=sc1)
CategoryItem.objects.create(category=sc2)
self.assertQuerysetEqual(
SpecialCategory.objects.exclude(
categoryitem__id=c1.pk).order_by('name'),
[sc2, sc3], lambda x: x
)
self.assertQuerysetEqual(
SpecialCategory.objects.filter(categoryitem__id=c1.pk),
[sc1], lambda x: x
)