多个对象返回到/api/rentals/gallery/1/

Question

我需要在GalleryAPI的详细视图中显示多个图像，但我收到一个错误声明

多个对象返回/api/rentals/gallery/1/

get（）返回了多个库--它返回了2！

视图.py

class GalleryListAPIView(ListAPIView):
    # queryset = Rental.objects.all()
    serializer_class = GalleryListSerializer
    pagination_class = RentalPageNumberPagination

    def get_queryset(self, *args, **kwargs):
        queryset_list = Gallery.objects.all()
        return queryset_list

class GalleryDetailAPIView(RetrieveAPIView):
    queryset = Gallery.objects.all()
    serializer_class = GalleryDetailSerializer
    lookup_field = 'rental_id'

序列化程序.py

^{pr2}$

Answer 1

看看documentation

lookup_field - The model field that should be used to for performing object lookup of individual model instances. Defaults to 'pk'.

因为您使用了rental_id，并且使用的是url /api/rentals/gallery/1/，这里的1是rental_id，而不是图库的{}。而且，可能有两个gallery对象与rental_id=1相关，这就是为什么在结果中得到这些对象。在