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Description
UsingSlugRelatedField(queryset=ContentType.objects.all(), slug_field='model',) used to work but doesn't anymore
models.py
classFoo(models.Model):product_type=models.ForeignKey(ContentType,on_delete=models.CASCADE, )
serializers.py
fromdjango.contrib.contenttypes.modelsimportContentTypefromrest_frameworkimportserializersfrom .modelsimportFooclassFooSerializer(serializers.ModelSerializer):classMeta:model=Foocontent_type=serializers.SlugRelatedField(queryset=ContentType.objects.all(),slug_field='model', )
views.py
classFooViewSet(viewsets.ModelViewSet):queryset=Foo.objects.all()serializer_class=serializers.FooSerializerfilterset_fields= ['content_type']
The expectation is to be able to filter by doingcontent_type=user but instead it throws the following error:Select a valid choice. That choice is not one of the available choices, which doesn't make sense, especially since printing the choices show that "user" is the "model" attribute of one of them.
One possible workaround is to create a custom FilterSet class, but it doesn't do anything special to fix it, just a blank filter with the same references used at SlugRelatedField before, so its clear its redundant and drf should work without it:
classContentTypeFilterSet(django_filters.FilterSet):content_type=django_filters.ModelChoiceFilter(field_name='content_type',queryset=ContentType.objects.all(),to_field_name='model',label='Model' )classMeta:model=Foofields= ('content_type', )
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