Django REST框架-根据查询参数进行过滤

Question

因此，我使用REST框架创建了“ API”，现在尝试对其进行过滤。那就是我models.py或多或少的样子：

class Airline(models.Model):
    name = models.TextField()

class Workspace(models.Model):
    airline = models.ForeignKey(Airline)
    name = models.CharField(max_length=100)

class Passenger(models.Model):
    workspace = models.ForeignKey(Workspace)
    title = models.CharField(max_length=200)

因此，我想在我的JSON文件中看到“特定工作区中的所有乘客”或“特定航空公司中的所有乘客”等。

这是我的， serializers.py

class AirlineSerializer(serializers.ModelSerializer):
    class Meta:
        model = Airline


class WorkspaceSerializer(serializers.ModelSerializer):
    class Meta:
        model = Workspace


class PassengerSerializer(serializers.ModelSerializer):
    class Meta:
        model = Passenger

和views.py：

class AirlineList(generics.ListCreateAPIView):
    model = Airline
    serializer_class = AirlineSerializer


class AirlineDetail(generics.RetrieveUpdateDestroyAPIView):
    model = Airline
    serializer_class = AirlineSerializer


class WorkspaceList(generics.ListCreateAPIView):
    model = Workspace
    serializer_class = WorkspaceSerializer


class WorkspaceDetail(generics.RetrieveUpdateDestroyAPIView):
    model = Workspace
    serializer_class = WorkspaceSerializer


class PassengerList(generics.ListCreateAPIView):
    model = Passenger
    serializer_class = PassengerSerializer


class PassengerDetail(generics.RetrieveUpdateDestroyAPIView):
    model = Passenger
    serializer_class = PassengerSerializer

这是我第一次使用REST框架，我检查了文档，他们帮助了我到目前为止所做的一切，我想使用

根据查询参数进行过滤：http : //www.django-rest-
framework.org/api-guide/filtering/#filtering-against-query-
parameters

真的不能得到它..

Answer 1

因此，通过@limelights，我设法完成了我想要的工作，这是代码：

class PassengerList(generics.ListCreateAPIView):
    model = Passenger
    serializer_class = PassengerSerializer

    # Show all of the PASSENGERS in particular WORKSPACE
    # or all of the PASSENGERS in particular AIRLINE
    def get_queryset(self):
        queryset = Passenger.objects.all()
        workspace = self.request.query_params.get('workspace')
        airline = self.request.query_params.get('airline')

        if workspace:
            queryset = queryset.filter(workspace_id=workspace)
        elif airline:
            queryset = queryset.filter(workspace__airline_id=airline)

        return queryset