Question

我遇到属性错误

accounts app name
models.py
class AddressUser(models.Model):
    customer = models.OneToOneField(Customer_create, related_name='customer_address', on_delete=models.CASCADE, blank = True,null=True)
    user = models.OneToOneField(User, on_delete=models.CASCADE, blank = True,null=True)
    house_number = models.CharField(max_length=250)
    builiding_name = models.CharField(max_length=250)
    block_no = models.CharField(max_length=250)
    street = models.CharField(max_length=250)
    area = models.CharField(max_length=250)
    city = models.CharField(max_length=250)
    pincode = models.CharField(max_length=250)
    state_choices = (
        ("Andhra Pradesh", "Andhra Pradesh"), ("Arunachal Pradesh ", "Arunachal Pradesh "), ("Assam", "Assam"),
        ("Bihar", "Bihar"), ("Chhattisgarh", "Chhattisgarh"), ("Goa", "Goa"), ("Gujarat", "Gujarat"),
        ("Haryana", "Haryana"), ("Himachal Pradesh", "Himachal Pradesh"), ("Jammu and Kashmir ", "Jammu and Kashmir "),
        ("Jharkhand", "Jharkhand"), ("Karnataka", "Karnataka"), ("Kerala", "Kerala"), ("Madhya Pradesh", "Madhya Pradesh"),
        ("Maharashtra", "Maharashtra"), ("Manipur", "Manipur"), ("Meghalaya", "Meghalaya"), ("Mizoram", "Mizoram"),
        ("Nagaland", "Nagaland"), ("Odisha", "Odisha"), ("Punjab", "Punjab"), ("Rajasthan", "Rajasthan"),
        ("Sikkim", "Sikkim"), ("Tamil Nadu", "Tamil Nadu"), ("Telangana", "Telangana"), ("Tripura", "Tripura"),
        ("Uttar Pradesh", "Uttar Pradesh"), ("Uttarakhand", "Uttarakhand"), ("West Bengal", "West Bengal"),
        ("Andaman and Nicobar Islands", "Andaman and Nicobar Islands"), ("Chandigarh", "Chandigarh"),
        ("Dadra and Nagar Haveli", "Dadra and Nagar Haveli"), ("Daman and Diu", "Daman and Diu"),
        ("Lakshadweep", "Lakshadweep"), ("National Capital Territory of Delhi", "National Capital Territory of Delhi"),
        ("Puducherry", "Puducherry"))
    state = models.CharField(choices=state_choices, max_length=255)
    country = models.CharField(max_length=10, default='India')
Simple app
model.py
class Customer_create(models.Model):
    #address = models.ForeignKey(AddressUser, on_delete= models.CASCADE)
    customer_name=models.CharField(max_length=250)
    mobile_number=models.CharField(max_length=10)
    email=models.CharField(max_length=50)
serializers.py
class AddressSerlizer(serializers.ModelSerializer):
    class Meta:
        model = AddressUser
        fields = ('id','house_number','builiding_name','block_no', 'street', 'area', 'city', 'pincode', 'state', 'country',)
class Customer_serializer(serializers.ModelSerializer):
    address = AddressSerlizer(many=True, allow_null=False)
    class Meta:
        model = Customer_create
        fields = ('id','customer_name',
                'mobile_number',
                'email',
                'address',)
    # def create(self, validated_data):
    #     """
    #     Overriding the default create method of the Model serializer.
    #     :param validated_data: data containing all the details of student
    #     :return: returns a successfully created student record
    #     """
    #     user_data = validated_data.pop('address')
    #     user = AddressSerlizer.create(AddressSerlizer(), validated_data=user_data)
    #     student, created = Customer_create.objects.create(user=user,
    #                                                     customer_name = validated_data.pop('customer_name'),
    #                                                   mobile_name=validated_data.pop('mobile_number'),
    #                                                   email=validated_data.pop('email'))
    #     return student
    def create(self, validated_data):
        address_data = validated_data.pop('address')
        # customer = Customer_create.objects.create(**validated_data)
        # AddressUser.objects.create(customer=customer, **address_data)
        # return customer
        # customer = Customer_create(customer_name = validated_data['customer_name'],
        #                            mobile_name = validated_data['mobile_number'],
        #                            email = validated_data['email']
        #                            )
        # customer.save()
        customer = Customer_create.objects.create(**validated_data)
        for i in address_data:
            AddressUser.objects.create(customer=customer, **i)
        return customer
AttributeError at /simple/customer_post

尝试在序列化程序address上获取字段Customer_serializer的值时出现AttributeError。序列化程序字段的名称可能不正确，并且与Customer_create实例上的任何属性或键都不匹配。原始异常文本为：'Customer_create'对象没有属性'address'。

**

Answer 1

这是因为您需要指定Customer_create模型和AddressUser模型之间的关系。 您可以如下从Customer_create模型中删除以下注释。因为DRF序列化程序无法在您的address模型的实例中找到Customer_create。

class Customer_create(models.Model):
    #address = models.ForeignKey(AddressUser, on_delete= models.CASCADE)
    customer_name=models.CharField(max_length=250)
    mobile_number=models.CharField(max_length=10)
    email=models.CharField(max_length=50)

比运行python manage.py makemigrations和python manage.py migrate命令

如何使用嵌套的Serilizer我得到属性错误

1 个答案: