Question

如何使用django框架返回分页？

我正在尝试使用LimitOffsetPagination类。

我要去哪里错了？

谢谢你们

class Sellers(APIView):
    pagination_class = LimitOffsetPagination

    def get(self, request):

    transactions = Transactions.objects.all()


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

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





page = self.paginate_queryset(transactions, request)
AttributeError: 'Sellers' object has no attribute 'paginate_queryset'

Answer 1

我认为APIView不支持pagination。您需要使用GenericAPIView：

class Sellers(GenericAPIView):
    pagination_class = LimitOffsetPagination

    def get(self, request):
        transactions = Transactions.objects.all()
        page = self.paginate_queryset(transactions)
        if page is not None:
            serializer = self.get_serializer(page, many=True)
            return self.get_paginated_response(serializer.data)

        serializer = YourSerializer(transactions, many=True)
        return Response(serializer.data)

或更简单地使用django rest框架为您处理一切的ListAPIView：

class Sellers(ListAPIView):
    serializer_class = YourSerializer # you need to define a serializer and put it here
    queryset = Transactions.objects.all()

    def dispatch(self, request, *args, **kwargs):
        if request.GET.get('offset', None) and self.request.GET.get('limit', None):
           self._paginator = LimitOffsetPagination
        else:
           self._paginator = PageNumberPagination
        return super(Sellers, self).dispatch(request, *args, **kwargs)

     def get_queryset(self):
         return Transactions.objects.filter(user=request.session['user_id'])

    # You don't need to override the `.get()` method

Answer 2

我们可以利用通用ListAPIView的优势。您可以使用内置功能来加快开发速度，如下所示。

class Sellers(ListAPIView):
    pagination_class = LimitOffsetPagination
    queryset = Transactions.objects.all()

参考： https://www.django-rest-framework.org/api-guide/generic-views/#listapiview

Answer 3

使用winSCP->Server and protocol information dialogue, which lists MD5 and SHA-256 keys nice and explicitly. I have tried both key strings, with and without prefixes like而不是self.pagination_class编辑Ruddura的第二个答案，因为它会引发一些奇怪的错误。

修改后的答案：

self._paginator

然后在settings.py中添加：

class Sellers(ListAPIView):
    serializer_class = YourSerializer # you need to define a serializer and put it here
    queryset = Transactions.objects.all()

    def dispatch(self, request, *args, **kwargs):
        if request.GET.get('offset', None) and self.request.GET.get('limit', None):
           self.pagination_class = LimitOffsetPagination
        else:
           self.pagination_class = PageNumberPagination
        return super(Sellers, self).dispatch(request, *args, **kwargs)

     def get_queryset(self):
         return Transactions.objects.filter(user=request.session['user_id'])

     # ...
     return self.get_paginated_response(self.paginate_queryset(serializer.data))

如何使用Django框架返回分页？

3 个答案: