反向关系Django Rest框架中的写操作

我有这样的模型：

class Car(models.Model):
    name = models.CharField(max_length=255)


class CarImage(models.Model):
    car = models.ForeignKey(Car, related_name='photos')
    photo = models.ImageField(upload_to='car/')

对于序列化程序，我有：

class CarImageSerializer(serializer.ModelSerializer):
    class Meta:
        model = CarImage

class CarSerializer(serializer.ModelSerializer):
    photos = CarImageSerializer()
    class Meta:
        model = Car
        fields = ('id', 'name', 'photos',)

当

CarSerializer

的web界面加载时，默认情况下，

photos

字段上会出现

non_field_errors

。DRF是否支持这种情况？如果不是，最好的方法是什么？ P.S我使用的是generic

createapieview

使用，您应该从另一种方式执行此操作：

class CarSerializer(serializer.ModelSerializer):
    photos = serializers.RelatedField(many=True)
    class Meta:
        model = Car
        fields = ('id', 'name', 'photos',)

---

也许你可以试试这个：

序列化程序.py

class CarImageSerializer(serializers.ModelSerializer):

    class Meta:
        model = CarImage


class CarSerializer(serializers.HyperlinkedModelSerializer):
    photos = serializers.HyperlinkedRelatedField(many=True,
                                                 view_name='carimage-list')

    class Meta:
        model = Car
        fields = ('id', 'name', 'photos',)

class CarImageList(ListCreateAPIView):
    queryset = CarImage.objects.all()
    serializer_class = CarImageSerializer


class CarList(ListCreateAPIView):
    queryset = Car.objects.all()
    serializer_class = CarSerializer

url(r'^carimage/$', CarImageList.as_view(), name='carimage-list'),
url(r'^car/$', CarList.as_view(), name='car-list'),

视图.py

class CarImageSerializer(serializers.ModelSerializer):

    class Meta:
        model = CarImage


class CarSerializer(serializers.HyperlinkedModelSerializer):
    photos = serializers.HyperlinkedRelatedField(many=True,
                                                 view_name='carimage-list')

    class Meta:
        model = Car
        fields = ('id', 'name', 'photos',)

class CarImageList(ListCreateAPIView):
    queryset = CarImage.objects.all()
    serializer_class = CarImageSerializer


class CarList(ListCreateAPIView):
    queryset = Car.objects.all()
    serializer_class = CarSerializer

url(r'^carimage/$', CarImageList.as_view(), name='carimage-list'),
url(r'^car/$', CarList.as_view(), name='car-list'),

url.py

class CarImageSerializer(serializers.ModelSerializer):

    class Meta:
        model = CarImage


class CarSerializer(serializers.HyperlinkedModelSerializer):
    photos = serializers.HyperlinkedRelatedField(many=True,
                                                 view_name='carimage-list')

    class Meta:
        model = Car
        fields = ('id', 'name', 'photos',)

class CarImageList(ListCreateAPIView):
    queryset = CarImage.objects.all()
    serializer_class = CarImageSerializer


class CarList(ListCreateAPIView):
    queryset = Car.objects.all()
    serializer_class = CarSerializer

url(r'^carimage/$', CarImageList.as_view(), name='carimage-list'),
url(r'^car/$', CarList.as_view(), name='car-list'),

---

你应该注意所有需要的进口。不保证，但您可以试一试。

如果我这样做，我在web界面上看不到照片字段。另外，反向关系插入是否由通用API视图处理？如果您找到/找到了答案，请告诉我，我将发布一个类似的问题。再次尝试发布到通过反向关系链接的模型。尚未找到答案！是否确实要使用

CreateAPIView

？它只能根据

post

创建新条目。如果还希望根据

get

显示条目，则应使用

ListCreateAPIView

？您的序列化程序类中有一个错误的输入错误：

serializer.ModelSerializer

。它必须是

序列化程序。ModelSerializer

。您肯定有这样一个：

来自rest\u框架导入序列化程序

。