Fixed #16281 -- Fixed ContentType.get_object_for_this_type() in a multiple database setup.

1 files changed, 28 insertions, 0 deletions

diff --git a/tests/multiple_database/tests.py b/tests/multiple_database/tests.py
index 337ebae75e..9587030a46 100644
--- a/tests/multiple_database/tests.py
+++ b/tests/multiple_database/tests.py
@@ -1302,6 +1302,34 @@ class QueryTestCase(TestCase):
             title="Dive into Water", published=datetime.date(2009, 5, 4), extra_arg=True
         )
 
+    @override_settings(DATABASE_ROUTERS=["multiple_database.tests.TestRouter"])
+    def test_contenttype_in_separate_db(self):
+        ContentType.objects.using("other").all().delete()
+        book_other = Book.objects.using("other").create(
+            title="Test title other", published=datetime.date(2009, 5, 4)
+        )
+        book_default = Book.objects.using("default").create(
+            title="Test title default", published=datetime.date(2009, 5, 4)
+        )
+        book_type = ContentType.objects.using("default").get(
+            app_label="multiple_database", model="book"
+        )
+
+        book = book_type.get_object_for_this_type(title=book_other.title)
+        self.assertEqual(book, book_other)
+        book = book_type.get_object_for_this_type(using="other", title=book_other.title)
+        self.assertEqual(book, book_other)
+
+        with self.assertRaises(Book.DoesNotExist):
+            book_type.get_object_for_this_type(title=book_default.title)
+        book = book_type.get_object_for_this_type(
+            using="default", title=book_default.title
+        )
+        self.assertEqual(book, book_default)
+
+        all_books = book_type.get_all_objects_for_this_type()
+        self.assertCountEqual(all_books, [book_other])
+
 
 class ConnectionRouterTestCase(SimpleTestCase):
     @override_settings(