在django rest泛型CreateAPIView中覆盖create方法

Question

我的django应用程序的views.py如下,

class MemberCreate(generics.CreateAPIView):
    queryset = members.objects.all()
    serializer_class = MemberSerializer
    permission_classes = (permissions.IsAdminUser,)

    def create(self, serializer):
        ''' I wanted to do some stuff with serializer.data here '''
        pass 

在上面的内容中如果我覆盖了create函数,则返回失败并出现以下错误,即使我没有做任何事情,只是写入传递它失败了,

AssertionError: Expected a `Response`, `HttpResponse` or `HttpStreamingResponse` to be returned from the view, but received a `<class 'NoneType'>`

Answer 1

返回应该是instanceof Response.你可以parent在你之后返回课堂回复stuff

def create(self, request, *args, **kwargs):
    ''' I wanted to do some stuff with serializer.data here '''
    return super(MemberCreate, self).create(request, *args, **kwargs)

或者如果你不想要父响应,那么只需返回一个Response实例

def create(self, request, *args, **kwargs):
    ''' I wanted to do some stuff with serializer.data here '''
    return Response(status=204)

Answer 2

您的视图应该返回一个Response对象，如堆栈跟踪中所述AssertionError。

对于您的情况，您可以尝试返回一个空值Response以测试您的视图和您的serializer.data

from rest_framework.response import Response
from rest_framework import status


class MemberCreate(generics.CreateAPIView):
    queryset = members.objects.all()
    serializer_class = MemberSerializer
    permission_classes = (permissions.IsAdminUser,)

    def create(self, request, *args, **kwargs):
        serializer = self.serializer_class(...)
        data = serializer.data

        # ...

        return Response(status=status.HTTP_204_NO_CONTENT)

通常，您希望serializer.validated_data最终返回您的内容，因此这一行可能如下所示：

return Response(serializer.validated_data, status=status.HTTP_201_CREATED)