相关疑难解决方法(0)

我想在我的REST API中过滤查询参数 - 请参阅django docs.但是,我希望过滤的一个参数只能通过模型​​@property获得

models models.py:

class Listing(models.Model):
    product = models.OneToOneField(Product, related_name='listing')
    ...
    @property
    def category(self):
        return self.product.assets[0].category.name

这是我的Listing API的设置,符合django-filter docs

    class ListingFilter(django_filters.FilterSet):
        product = django_filters.CharFilter(name='product__name')
        category = django_filters.CharFilter(name='category') #DOES NOT WORK!!

        class Meta:
            model = Listing
            fields = ['product','category']

    class ListingList(generics.ListCreateAPIView):
        queryset = Listing.objects.all()
        serializer_class = ListingSerializer
        filter_class = ListingFilter

我怎样才能通过listing.category进行适当的过滤？它不是直接在列表模型上提供的.