Django Rest Framework AttributeError“CustomUser”对象没有属性“user”

Question

我有不同类型的用户。这就是为什么，每个用户类型都应该有自己的配置文件详细信息。所以我试图为这些配置文件编写API。但是，我无法解决此错误。我正在学习一门课程中的一个例子。我的代码与这个示例完全相似。我不明白我错在哪里

似乎我在协调相关模型时犯了一个错误。我检查了别名，一遍又一遍地试图解决它。我试了很多次来解决这个问题，但每次都不成功

错误消息

AttributeError at /api/account/child-profile-update
Got AttributeError when attempting to get a value for field `user` on serializer `ChildProfileSerializer`.
The serializer field might be named incorrectly and not match any attribute or key on the `CustomUser` instance.
Original exception text was: 'CustomUser' object has no attribute 'user'.

自定义用户模型

class CustomUser(AbstractUser):
    GENDER_CHOICES = (
        (1, AccountStrings.CustomUserStrings.gender_choice_male),
        (2, AccountStrings.CustomUserStrings.gender_choice_female),
        (3, AccountStrings.CustomUserStrings.gender_choice_other),
    )

    USER_TYPE_CHOICES = (
        (1, AccountStrings.CustomUserStrings.user_type_choice_default),
        (2, AccountStrings.CustomUserStrings.user_type_choice_child),
        (3, AccountStrings.CustomUserStrings.user_type_choice_parent),
        (4, AccountStrings.CustomUserStrings.user_type_choice_instructor),
    )
    objects = CustomUserManager()
    email = models.EmailField(max_length=255,
                              unique=True,
                              null=False,
                              blank=False)
    identity_number = models.CharField(
        max_length=11,
        unique=True,
        verbose_name=AccountStrings.CustomUserStrings.
        identity_number_verbose_name)
    birth_date = models.DateField(
        null=True,
        blank=True,
        verbose_name=AccountStrings.CustomUserStrings.birth_date_verbose_name)
    gender = models.PositiveSmallIntegerField(
        choices=GENDER_CHOICES,
        default=1,
        verbose_name=AccountStrings.CustomUserStrings.gender_verbose_name)
    user_type = models.PositiveSmallIntegerField(
        choices=USER_TYPE_CHOICES,
        default=1,
        verbose_name=AccountStrings.CustomUserStrings.user_type_verbose_name)

子配置文件模型

class ChildProfile(models.Model):
    user = models.OneToOneField(
        settings.AUTH_USER_MODEL,
        on_delete=models.CASCADE,
        primary_key=True,
        verbose_name=AccountStrings.ChildProfileStrings.user_verbose_name,
        related_name="user_child")
    city = models.ForeignKey(
        City,
        on_delete=models.SET_NULL,
        null=True,
        blank=True,
        verbose_name=AccountStrings.ChildProfileStrings.city_verbose_name,
        related_name="city_child_profiles")
    hobbies = models.CharField(
        max_length=500,
        null=True,
        blank=True,
        verbose_name=AccountStrings.ChildProfileStrings.hobbies_verbose_name)

   

子配置文件序列化程序

from rest_framework.serializers import ModelSerializer
from account.models import ChildProfile
from django.contrib.auth import get_user_model

User = get_user_model()


class ChildProfileSerializer(ModelSerializer):
    class Meta:
        model = ChildProfile
        fields = "__all__"

class UserChildSerializer(ModelSerializer):
    childprofile = ChildProfileSerializer()

    class Meta:
        model = User
        fields = ["id", "first_name", "last_name", "email", "identity_number", "gender", "birth_date", "childprofile"]

视图

from django.contrib.auth import get_user_model

User = get_user_model()

class ChildProfileUpdateAPIView(RetrieveUpdateAPIView):
    queryset = User.objects.all()
    serializer_class = ChildProfileSerializer

    def get_object(self):
        queryset = self.get_queryset()
        obj = User.objects.get(id = self.request.user.id)
        return obj

Answer 1

这个问题是由ChildProfileUpdateAPIView.get_object返回一个User/CustomUser实例引起的，而它很可能是一个ChildProfile实例

本质上，您正在对ChildProfileSerializer使用一个User/CustomUser，它将失败，并出现您看到的错误

要解决此问题，请尝试：

def get_object(self):
    obj = ChildProfile.objects.get(user=self.request.user)
    return obj