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Code Issues 32 Releases Wiki Activity

Fixed #33651 -- Added support for prefetching GenericForeignKey.

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Co-authored-by: revanthgss <revanthgss@almabase.com>
Co-authored-by: Mariusz Felisiak <felisiak.mariusz@gmail.com>
This commit is contained in:
Clément Escolano
2023-08-01 23:31:40 +02:00
committed by Mariusz Felisiak
parent 190874eadd
commit cac94dd8aa
15 changed files with 473 additions and 42 deletions
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19
tests/prefetch_related/tests.py
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@@ -13,6 +13,7 @@ from django.test import (
skipUnlessDBFeature,
)
from django.test.utils import CaptureQueriesContext
from django.utils.deprecation import RemovedInDjango60Warning
from .models import (
Article,
@@ -1696,7 +1697,7 @@ class Ticket21760Tests(TestCase):
def test_bug(self):
prefetcher = get_prefetcher(self.rooms[0], "house", "house")[0]
queryset = prefetcher.get_prefetch_queryset(list(Room.objects.all()))[0]
queryset = prefetcher.get_prefetch_querysets(list(Room.objects.all()))[0]
self.assertNotIn(" JOIN ", str(queryset.query))
@@ -1994,3 +1995,19 @@ class PrefetchLimitTests(TestDataMixin, TestCase):
)
with self.assertRaisesMessage(NotSupportedError, msg):
list(Book.objects.prefetch_related(Prefetch("authors", authors[1:])))
class GetCurrentQuerySetDeprecation(TestCase):
def test_get_current_queryset_warning(self):
msg = (
"Prefetch.get_current_queryset() is deprecated. Use "
"get_current_querysets() instead."
)
authors = Author.objects.all()
with self.assertWarnsMessage(RemovedInDjango60Warning, msg):
self.assertEqual(
Prefetch("authors", authors).get_current_queryset(1),
authors,
)
with self.assertWarnsMessage(RemovedInDjango60Warning, msg):
self.assertIsNone(Prefetch("authors").get_current_queryset(1))