Python Django Rest框架在运行验证后将相关对象列表转换为空列表
在django rest框架中创建子对象时,我正在尝试创建相关对象或父对象的列表Python Django Rest框架在运行验证后将相关对象列表转换为空列表,python,django,django-rest-framework,Python,Django,Django Rest Framework,在django rest框架中创建子对象时,我正在尝试创建相关对象或父对象的列表 My Models are like this class Model2(models.Model): model1 = models.ForeignKey(Model1) name = models.CharField(max_length=100) display_name = models.CharField(max_length=100) class Model3(model
My Models are like this
class Model2(models.Model):
model1 = models.ForeignKey(Model1)
name = models.CharField(max_length=100)
display_name = models.CharField(max_length=100)
class Model3(models.Model):
model1 = models.ForeignKey(Model1)
kind = models.ForeignKey(Kind)
model2 = models.ForeignKey(Model2)
我的序列化程序类是:
class Model2Serializer(serializers.ModelSerializer):
class Meta:
model = Model2
class Model3Serializer(serializers.ModelSerializer):
model2 = Model2Serializer(many=True)
class Meta:
model = Model3
fields = ('model1', 'model2')
我的看法是:
class Model3View(generics.CreateAPIView):
serializer_class = Model3Serializer
queryset = Model3.objects.all()
def create(self, request, *args, **kwargs):
serializer = self.get_serializer(data=request.data)
serializer.is_valid(raise_exception=True)
# self.perform_create(serializer)
print serializer.data
headers = self.get_success_headers(serializer.data)
return Response(serializer.data, status=status.HTTP_201_CREATED, headers=headers)
我正在发送字段名model2中的对象列表
request.data中的model2字段类似
[
{
"name":"abcde",
"display_name":"ghvhgvhg",
"model1":1
},
{
"name":"abcde",
"display_name":"ghvhgvhg",
"model1":1
}
]
但当我在检查serializer.data是否有效后打印serializer.data时,它会在serailizer.data中显示model2:[]
为什么我的数据在对数据执行验证时丢失?这是因为Model3只能有Model2的一个实例,Model2可以由Model3的多个实例指向
因此,您的字段model2=Model2Serializermany=True是错误的,因为Model3实例可能永远不会有很多model2实例