Serialization Django rest:使用2个外键发送POST请求
我想在序列化程序中发布一个数据,具有2个ForeignKeySerialization Django rest:使用2个外键发送POST请求,serialization,django-rest-framework,foreign-keys,django-rest-viewsets,Serialization,Django Rest Framework,Foreign Keys,Django Rest Viewsets,我想在序列化程序中发布一个数据,具有2个ForeignKey 我有这些型号: class Child(models.Model): first_name = models.CharField(max_length=40) description = models.CharField(max_length=40) class Parent(models.Model): name = models.CharField(max_length=20) pet = mod
我有这些型号:
class Child(models.Model):
first_name = models.CharField(max_length=40)
description = models.CharField(max_length=40)
class Parent(models.Model):
name = models.CharField(max_length=20)
pet = models.ForeignKey(pet)
child = models.ForeignKey(Child, related_name='boys')
class Pet(models.Model):
kind = models.CharField(max_length=40)
------------------,
Class PetSerializer(ModelSerializer):
class Meta:
model = Pet
fields = ('kind',)
class ParentSerializer(ModelSerializer):
pet = PetSerializer(many=True):
class Meta:
model = Parent
fields = ('name', 'pet')
class ChildSerializer(ModelSerializer):
boys = ParentSerializer()
class Meta:
model = Child
fields = ('first_name', 'boys')
我的第一个问题:是否有可能得到如下输出:
{
"first_name": "Peter",
"boys": [
{
"name": "Bill",
"kind": "dog"
}
]
}
我的第二个问题:我正试图通过使用以下方法发送数据以创建新模型:
def create(self, validated_data):
clean_data = validated_data.pop('boys')
child = Child.objects.create(**validated_data)
for data in clean_data:
Parent.objects.create(child=child, **data)
return child
But I got this error: TypeError: Direct assignment to the reverse side of a related set is prohibited. Use boys.set() instead.
仅针对第一个问题,您可以在
ParentSerializer
类中使用:
类ParentSerializer(ModelSerializer):
kind=serializers.CharField(source='pet.kind'):
类元:
模型=父
字段=('name','kind')
is
boys
isChild
model的外键?boys是相关的\u name:属性指定从子模型返回到父模型的反向关系的名称。对于第二个问题,请提供您的验证的\u数据
并检查您的代码,了解跟踪\u数据
varibale。错误中的用户名也在哪里。请把你的第二个问题说清楚。对不起。是男孩们