AssertionError：无法在没有 `.model` 或 `.queryset` 属性的视图上应用 DjangoModelPermissions

Question

我之前对我的项目有这样的看法：

from rest_framework import status
from rest_framework.views import APIView
from rest_framework.response import Response
from rest_framework.parsers import JSONParser
from rest_framework.permissions import IsAuthenticated


from rest_api.my_app.serializer import MySerializer
from my_project.models import Bag


class MyView(APIView):
    parser_classes = (JSONParser,)
    queryset = Bag.objects.all()
    permission_classes = (IsAuthenticated,)


    @staticmethod
    def post(self, request, format=None):
        serializer = MySerializer(data=request.DATA)
        if serializer.is_valid():
            serializer.save(),
            return Response(serializer.data, status=status.HTTP_201_CREATED)
        return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)

但是我后来意识到我不需要查询集，所以我删除了那行和 保留的权限和查询集：

from rest_framework import status
from rest_framework.views import APIView
from rest_framework.response import Response
from rest_framework.parsers import JSONParser


from rest_api.my_app.serializer import MySerializer


class MyView(APIView):
    parser_classes = (JSONParser,)
    @staticmethod
    def post(self, request, format=None):
        serializer = MySerializer(data=request.DATA)
        if serializer.is_valid():
            serializer.save(),
            return Response(serializer.data, status=status.HTTP_201_CREATED)
        return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)

如果我尝试运行代码，我会收到以下错误消息：

AssertionError: Cannot apply DjangoModelPermissions on a view that does not have     `.model` or `.queryset` property.'

Answer 1

这是因为您删除了权限类。 您可以使用 permission_classes = (IsAuthenticatedOrReadOnly,)