fix and test regression in 1.19.3 forbidding setting GFK via proxy model

CHANGELOG.md

@@ -13,12 +13,12 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ### Removed
 
-## [1.20.2](https://pypi.org/project/model-bakery/1.20.2)
+## [1.20.2](https://pypi.org/project/model-bakery/1.20.2/)
 
 ### Changed
 
-- Fix setting GFK parameter by a callable (#516)
-
+- Fix setting GFK parameter by a callable
+- Fix regression forbidding using Proxy models as GFK
 
 ## [1.20.1](https://pypi.org/project/model-bakery/1.20.1/)
 

model_bakery/baker.py

@@ -716,7 +716,9 @@ def _handle_generic_foreign_keys(self, instance: Model, attrs: Dict[str, Any]):
                 setattr(
                     instance,
                     ct_field_name,
-                    contenttypes_models.ContentType.objects.get_for_model(value),
+                    contenttypes_models.ContentType.objects.get_for_model(
+                        value, for_concrete_model=False
+                    ),
                 )
                 setattr(instance, oid_field_name, value.pk)
 

tests/test_baker.py

@@ -649,6 +649,24 @@ def get_dummy_key():
         assert isinstance(dummy.content_type, ContentType)
         assert isinstance(dummy.content_object, models.Person)
 
+    def test_create_model_with_contenttype_field_and_proxy_model(self):
+        from django.contrib.contenttypes.models import ContentType
+
+        class ProxyPerson(models.Person):
+            class Meta:
+                proxy = True
+                app_label = "generic"
+
+        dummy = baker.make(
+            models.DummyGenericForeignKeyModel,
+            content_object=baker.make(ProxyPerson, name="John Doe"),
+        )
+        dummy.refresh_from_db()
+        assert isinstance(dummy, models.DummyGenericForeignKeyModel)
+        assert isinstance(dummy.content_type, ContentType)
+        assert isinstance(dummy.content_object, ProxyPerson)
+        assert dummy.content_object.name == "John Doe"
+
 
 @pytest.mark.skipif(
     not BAKER_CONTENTTYPES, reason="Django contenttypes framework is not installed"