python - Django Rest Framework - APIView 分页

Question

我有一个非常简单的APIView，但我不知道如何在这里设置分页。在这种情况下，我选择一个具有给定 pk 的 Event，然后我获得分配给此 Event 的所有 NewsItems。

pagination_class = LimitOffsetPagination 当我在 ListCreateAPIView 开头定义查询集时工作正常，例如。 queryset = Event.objects.all() 但不使用自定义 get:

class EventNewsItems(APIView):
    pagination_class = LimitOffsetPagination

    def get(self, request, pk, format=None):

        #user = request.user
        event = Event.objects.get(pk=pk)
        news = event.get_news_items().all()

        serializer = NewsItemSerializer(news, many=True, context={'request':request})
        response = Response(serializer.data, status=status.HTTP_200_OK)
        return response

---

已解决:

def get(self, request, pk, format=None):

    #user = request.user
    event = Event.objects.get(pk=pk)
    news = event.get_news_items().all()
    paginator = LimitOffsetPagination()
    result_page = paginator.paginate_queryset(news, request)
    serializer = NewsItemSerializer(result_page, many=True, context={'request':request})
    response = Response(serializer.data, status=status.HTTP_200_OK)
    return response

Answer 1

另一种选择是从分页类继承，对 View 类的更改较少:

from rest_framework.pagination import LimitOffsetPagination

class EventNewsItems(APIView, LimitOffsetPagination):

    def get(self, request, pk, format=None):
        event = Event.objects.get(pk=pk)
        news = event.get_news_items().all()

        results = self.paginate_queryset(news, request, view=self)
        serializer = NewsItemSerializer(results, many=True)
        return self.get_paginated_response(serializer.data)