Question

我对网址http://127.0.0.1:8000/airlines/的POST请求失败

以下是我项目中的模型和相应的序列化器。最初我想创建航空公司信息，然后再添加航班

有人可以告诉我哪里出错了吗

models.py

class AirlineFirm(models.Model):
    operator_name = models.CharField(max_length=30)

    def __unicode__(self):
       return "%s" % (self.operator_name)

class Flight(models.Model):

    flight_num = models.CharField(max_length=7, primary_key=True)
    src = models.CharField(max_length=20)
    dest = models.CharField(max_length=20)
    outbound_time = models.DateTimeField()
    inbound_time = models.DateTimeField()
    num_of_seats = models.IntegerField()
    ticketPrice = models.FloatField()
    delayed = models.BooleanField()
    airlinefirm = models.ForeignKey(AirlineFirm)

serializers.py

class FlightSerializer(serializers.Serializer):

    flight_num = serializers.CharField(read_only=True)
    src = serializers.CharField()
    dest = serializers.CharField()
    outbound_time = serializers.DateTimeField()
    inbound_time = serializers.DateTimeField()
    num_of_seats = serializers.IntegerField()
    ticketPrice = serializers.FloatField()
    delayed = serializers.BooleanField()
    airlinefirm = serializers.RelatedField(read_only='True')
    #passengers = models.ManyToManyField(Passenger)


    def create(self, validated_data):
        return Flight.objects.create(**validated_data)

    def update(self, instance, validated_data):
        pass

class AirlineSerializer(serializers.ModelSerializer):

    flights = FlightSerializer(many=True)

    class Meta:
        model = AirlineFirm
        fields = ('operator_name','flights')

        def create(self, validated_data):
            flights_data = validated_data.pop('flights')
            airlinefirm = AirlineFirm.objects.create(**validated_data)

            for flight_data in flights_data:
                Flight.objects.create(airlinefirm=airlinefirm, **flight_data)
                return airlinefirm

views.py

@api_view(['GET','POST'])
def airline(request, format=None):

    if request.method == 'GET':
        airlines = AirlineFirm.objects.all()
        serializer = AirlineSerializer(airlines, many=True)
        return Response(serializer.data)

    if request.method == 'POST':
        #data = JSONParser().parse(request)
        serializer = AirlineSerializer(data=request.data)
        #import pdb;pdb.set_trace()
        if serializer.is_valid():
            serializer.save()
            return Response(serializer.data, status=status.HTTP_201_CREATED)
        else:
            import pdb;pdb.set_trace()
            return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)

当我向我的航空公司视图课程发送POST请求http://127.0.0.1:8000/airlines/时，我得到404回复

http请求

import json
import requests

payload = {'operator_name':'AmericanAirlines','flights':[]}
headers = {'Content-type':'application/json'}
r = requests.post('http://127.0.0.1:8000/',data=json.dumps(payload),headers=headers)

以下是错误消息：

AttributeError：尝试在序列化程序flights上获取字段AirlineSerializer的值时获得AttributeError。序列化程序字段可能名称不正确，并且与AirlineFirm实例上的任何属性或键都不匹配。原始异常文本是：'AirlineFirm'对象没有属性'flight'。 [18 / Feb / 2016 13:43:58]“POST / airlines / HTTP / 1.1”500 112039

Answer 1

你需要和你的urls.py中的api端点（如果它不存在），然后在你的请求中指向它，如：

r = requests.post('http://127.0.0.1:8000/airlines',data=json.dumps(payload),headers=headers)

django rest框架POST请求失败，嵌套序列化

1 个答案: