Django自定义用户模型UUID验证错误：‘1’非有效UUID的解决求助

运行Django服务器时触发错误：django.core.exceptions.ValidationError: ['“1” is not a valid UUID.']。我已将用户ID设置为UUID v4随机值，但代码始终无法正常运行，多次删除并重新执行迁移操作也没有改善，该如何解决？

from django.db import models
from django.contrib.auth.models import AbstractBaseUser,PermissionsMixin,BaseUserManager
import uuid

class CustomUserManager(BaseUserManager):
    def _create_user(self, email, password, first_name, last_name, mobile, **extra_fields):
        if not email:
            raise ValueError("Email must be provided")
        if not password:
            raise ValueError('Password is not provided')

        user = self.model(
            email = self.normalize_email(email),
            first_name = first_name,
            last_name = last_name,
            mobile = mobile,
            **extra_fields
        )

        user.set_password(password)
        user.save(using=self._db)
        return user

    def create_user(self, email, password, first_name, last_name, mobile, **extra_fields):
        extra_fields.setdefault('is_staff',True)
        extra_fields.setdefault('is_active',True)
        extra_fields.setdefault('is_superuser',False)
        return self._create_user(email, password, first_name, last_name, mobile, password, **extra_fields)

    def create_superuser(self, email, password, first_name, last_name, mobile, **extra_fields):
        extra_fields.setdefault('is_staff',True)
        extra_fields.setdefault('is_active',True)
        extra_fields.setdefault('is_superuser',True)
        return self._create_user(email, password, first_name, last_name, mobile, **extra_fields)

# Create your User Model here.
class User(AbstractBaseUser,PermissionsMixin):
    # Abstractbaseuser has password, last_login, is_active by default
    id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
    email = models.EmailField(db_index=True, unique=True, max_length=254)
    first_name = models.CharField(max_length=240)
    last_name = models.CharField(max_length=255)
    mobile = models.CharField(max_length=50)
    address = models.CharField( max_length=250)

    is_staff = models.BooleanField(default=True) # must needed, otherwise you won't be able to loginto django-admin.
    is_active = models.BooleanField(default=True) # must needed, otherwise you won't be able to loginto django-admin.
    is_superuser = models.BooleanField(default=False) # this field we inherit from PermissionsMixin.

    objects = CustomUserManager()

    USERNAME_FIELD = 'email'
    REQUIRED_FIELDS = ['first_name','last_name','mobile']

    class Meta:
        verbose_name = 'User'
        verbose_name_plural = 'Users'

1. 修复create_user方法的参数错误 #

你的create_user方法调用_create_user时多传了一个password参数，导致参数不匹配，这会引发异常并可能生成错误格式的数据：

def create_user(self, email, password, first_name, last_name, mobile, **extra_fields):
    extra_fields.setdefault('is_staff',True)
    extra_fields.setdefault('is_active',True)
    extra_fields.setdefault('is_superuser',False)
    # 移除多余的password参数，与_create_user的参数列表匹配
    return self._create_user(email, password, first_name, last_name, mobile, **extra_fields)

2. 彻底清理旧迁移与数据库数据 #

之前的迁移可能已在数据库中留下错误格式的ID数据，需完全重置：

• 停止Django服务器
• 删除所有migrations目录下的__pycache__文件夹，以及除__init__.py外的所有迁移文件
• 若使用SQLite，直接删除db.sqlite3文件；若使用其他数据库，清空用户表或重建数据库
• 重新生成迁移：python manage.py makemigrations
• 执行迁移：python manage.py migrate
• 创建新的超级用户：python manage.py createsuperuser

3. 排查硬编码的非UUID格式ID #

检查项目中其他代码（视图、模板、测试用例等）是否存在硬编码的1这类非UUID值，比如User.objects.get(id=1)，需替换为正确的UUID值，或通过邮箱等其他唯一字段查询用户。

4. 验证UUID字段配置 #

确认User模型中的UUID字段配置无误：

id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)

该配置是正确的，确保uuid模块已正确导入。

内容的提问来源于stack exchange，提问作者Mohammad Touhidul Islam