如何在覆蓋列表時添加過濾器後端？

Question

如果我重寫列表，則後端過濾器不起作用。如果我重寫列表定義，如何應用我的過濾器？

class CircuitViewSet(viewsets.ModelViewSet): 
    queryset = Circuit.objects.all() 
    serializer_class = CircuitSerializer 
    filter_backends = (filters.DjangoFilterBackend, filters.OrderingFilter,) 
    filter_class = CircuitFilter 

    def list(self, request): 
     queryset = Circuit.objects.all() 
     serializer = CircuitSerializer(queryset, many=True, context={'request': request}) 
     return Response(serializer.data) 

Answer 1

我以前也遇到了這個問題。在我的例子中，我只是刪除filter_backends = (filters.DjangoFilterBackend, filters.OrderingFilter,)部分，並開始過濾工作。

Answer 2

class CircuitViewSet(viewsets.ModelViewSet): 
    queryset = Circuit.objects.all() 
    serializer_class = CircuitSerializer 
    filter_backends = (filters.DjangoFilterBackend, filters.OrderingFilter,) 
    filter_class = CircuitFilter 

    def list(self, request): 
     # with filter 
     queryset = self.filter_queryset(self.get_queryset()) 

     # pagination 
     page = self.paginate_queryset(queryset) 
     if page is not None: 
      serializer = self.get_serializer(page, many=True) 
      return self.get_paginated_response(serializer.data) 

     serializer = self.get_serializer(queryset, many=True) 
     return Response(serializer.data)