Fixed #35580 -- Allowed related fields referencing auto-created through models.

2 files changed, 20 insertions, 1 deletions

diff --git a/django/db/models/fields/related.py b/django/db/models/fields/related.py
index 8930d6ef4a..6737570074 100644
--- a/django/db/models/fields/related.py
+++ b/django/db/models/fields/related.py
@@ -187,7 +187,9 @@ class RelatedField(FieldCacheMixin, Field):
         return errors
 
     def _check_relation_model_exists(self):
-        rel_is_missing = self.remote_field.model not in self.opts.apps.get_models()
+        rel_is_missing = self.remote_field.model not in self.opts.apps.get_models(
+            include_auto_created=True
+        )
         rel_is_string = isinstance(self.remote_field.model, str)
         model_name = (
             self.remote_field.model
diff --git a/tests/invalid_models_tests/test_relative_fields.py b/tests/invalid_models_tests/test_relative_fields.py
index e539d4e6fb..9b69ae4151 100644
--- a/tests/invalid_models_tests/test_relative_fields.py
+++ b/tests/invalid_models_tests/test_relative_fields.py
@@ -89,6 +89,23 @@ class RelativeFieldTests(SimpleTestCase):
         field = Model._meta.get_field("m2m")
         self.assertEqual(field.check(from_model=Model), [])
 
+    @isolate_apps("invalid_models_tests")
+    def test_auto_created_through_model(self):
+        class OtherModel(models.Model):
+            pass
+
+        class M2MModel(models.Model):
+            many_to_many_rel = models.ManyToManyField(OtherModel)
+
+        class O2OModel(models.Model):
+            one_to_one_rel = models.OneToOneField(
+                "invalid_models_tests.M2MModel_many_to_many_rel",
+                on_delete=models.CASCADE,
+            )
+
+        field = O2OModel._meta.get_field("one_to_one_rel")
+        self.assertEqual(field.check(from_model=O2OModel), [])
+
     def test_many_to_many_with_useless_options(self):
         class Model(models.Model):
             name = models.CharField(max_length=20)