Question

我是Django Rest Framework的新手。在我的工作中，建议我在一个现有项目中工作并即时学习Rest Framework。因此，我正在编写一个API，以同时使用get_queryset方法和get方法来显示车辆列表。我可以使get_queryset()方法起作用，但是get()方法不起作用（我假设某种语法错误）。

工作代码：

class VehicleList(ListAPIView):
    permission_classes = (AllowAny,)
    serializer_class = FleetVehicleSerializer

    def get_queryset(self):
        domain = self.request.META.get('HTTP_DOMAIN', None)
        if domain is None:
            raise Exception("Domain is missing in request header")
        qs = FleetVehicle.objects.using(domain).all()
        return qs

无效的代码：

class VehicleList(ListAPIView):
    permission_classes = (AllowAny,)
    serializer_class = FleetVehicleSerializer

  def get(self, request):
        domain = self.request.META.get('HTTP_DOMAIN', None)
        if domain is None:
            raise Exception("Domain is missing in request header")
        vehicles = FleetVehicle.objects.using(domain).all()
        return Response({'a': vehicles},status=status.HTTP_200_OK, content_type = 'application/json' )

输出应该是json，我正在邮递员中测试api。谁能帮助我解决可能的语法错误？

Answer 1

def get(self, request):
        domain = self.request.META.get('HTTP_DOMAIN', None)
        if domain is None:
            raise Exception("Domain is missing in request header")
        vehicles = FleetVehicle.objects.using(domain).all()
        data = FleetVehicleSerializer(vehicles,many=True)
        return Response({'a': data.data},status=status.HTTP_200_OK, content_type = 'application/json' )

根据您在我给出的解决方法get中遇到的错误进行解释。

Answer 2

您需要为ListAPIView覆盖list方法。您可以这样做：

class VehicleList(ListAPIView):
    permission_classes = (AllowAny,)
    serializer_class = FleetVehicleSerializer

  def list(self, request, *args, **kwargs):
        domain = self.request.META.get('HTTP_DOMAIN', None)
        if domain is None:
            raise Exception("Domain is missing in request header")
        vehicles = FleetVehicle.objects.using(domain).all()
        data = self.get_serializer(vehicles, many=True).data
        return Response({'a': data},status=status.HTTP_200_OK, content_type = 'application/json' )

错误覆盖Django Rest中的get方法

2 个答案: