带有自定义查询集的嵌套序列化程序

Question

我正在尝试向嵌套的序列化程序显示自定义查询值。但它没有显示

serializer.py

class TueRangeSerializer(serializers.ModelSerializer):

    class Meta:
        model = SubnetRange
        fields = ('type', 'id', 'begin', 'end')


class TueSubnetSerializer(serializers.ModelSerializer):
    range = TueRangeSerializer(required=False,read_only=False,many=True)
    class Meta:
        model = Subnet
        fields = ('name','base_address','bits','range')


    def create(self,validated_data):
        print(validated_data)

在api文件中

api.py

class SubnetList(APIView):


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

        query = 'SELECT ss.id ,ssr.id, ssp.id , ' \
                ' ss.name as name, ss.bits as bits, ssr.begin as begin FROM subnets_subnet ss' \
                ' inner join subnets_subnetphysical ssp on ssp.subnet_id = ss.id' \
                ' inner join subnets_subnetrange ssr on ssr.subnet_physical_id = ssp.id'

        subnets = Subnet.objects.raw(query)
        serializer = TueSubnetSerializer(subnets,many=True)

        return Response(serializer.data)

SQL查询是正确的。但是在序列化程序的响应中，它只显示来自子网表的数据

结果

[
    {
        "name": "First subnet",
        "base_address": "192.100.30.0",
        "bits": 24
    },
    {
        "name": "Second subnet",
        "base_address": "192.100.30.0",
        "bits": 24
    }    
]

它不显示范围输出