fix ReverseManyToOneDescriptor through prefetching bug

Author: tonisvain

HISTORY.md

@@ -1,5 +1,8 @@
 # Changelog
 
+## 2.2.1 (2024-10-28)
+- fix ReverseManyToOne through prefetch model selection
+
 ## 2.2.0 (2024-10-22)
 - Support for Django 5
   - Django supported versions `5.0 -> 5.1`

drf_sideloading/__init__.py

@@ -1 +1 @@
-__version__ = "2.2.0"
+__version__ = "2.2.1"

drf_sideloading/mixins.py

@@ -245,7 +245,10 @@ def get_sideloadable_queryset(self, prefetch):
                 elif isinstance(descriptor, ReverseOneToOneDescriptor):
                     model = descriptor.related.related_model
                 elif isinstance(descriptor, ReverseManyToOneDescriptor):
-                    model = descriptor.field.model
+                    if getattr(descriptor, "through", None):
+                        model = descriptor.field.related_model
+                    else:
+                        model = descriptor.field.model
                 else:
                     raise NotImplementedError(f"Descriptor {descriptor.__class__.__name__} has not been implemented")
             return model.objects.all()

setup.cfg

@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 2.2.0
+current_version = 2.2.1
 commit = True
 tag = True
 
@@ -10,7 +10,7 @@ universal = 1
 
 [flake8]
 ignore = D203
-exclude = 
+exclude =
 	drf_sideloading/migrations,
 	.git,
 	.tox,