FOREIGN KEY 约束失败。电子邮件地址中的 Django allauth 错误

Question

我在我的 Django 应用程序中使用 allauth。我有自定义用户模型和自定义注册表单。起初，Model 和 Form 在名为“main”的应用程序中，然后我创建了一个名为“user”的新应用程序并将它们移至新应用程序。现在我在注册新用户时收到 FOREIGN KEY constraint failed 错误。

我的 settings.py 中有这个：

AUTH_USER_MODEL = "user.Account"
ACCOUNT_FORMS = {
    "signup": "user.forms.CustomSignUpForm",
}

我的自定义注册表单：

class CustomSignUpForm(SignupForm):
    full_name = forms.CharField(max_length=350, label="Full Name", required=True)
    
    def save(self, request):
        user = super(CustomSignUpForm, self).save(request)
        user.full_name = self.cleaned_data['full_name']
        user.save()
        return user

我的models.py：

class AccountManager(BaseUserManager):
    def create_user(self, email, full_name, password=None):
        if not email:
            raise ValueError("Users must have email address")
        if not full_name:
            raise ValueError("Users must have name")
        
        user = self.model(
            email=self.normalize_email(email),
            full_name=full_name,
        )

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

    def create_superuser(self, email, full_name, password):
        user = self.create_user(
            email=self.normalize_email(email),
            password=password,
            full_name=full_name,
        )
        user.is_admin = True
        user.is_staff = True
        user.is_superuser = True
        user.save(using=self._db)
        return user


class Account(AbstractBaseUser):
    GENDERS = (
        ("M", "Male"),
        ("FM", "Female"),
        ("O", "Other")
    )
    SPECIALIZATIONS = (
        ("DV", "Developer"),
        ("DS", "Designer"),
    )
    email = models.EmailField(verbose_name="email", max_length=60, unique=True) 
    full_name = models.CharField(max_length=350)
    gender = models.CharField(max_length=50, choices=GENDERS)
    birth_date = models.DateField(null=True, blank=True)
    specialization = models.CharField(max_length=250, choices=SPECIALIZATIONS)


    extra_info = models.BooleanField(default=False)
    contacts = models.BooleanField(default=False)
    
    date_joined = models.DateTimeField(auto_now_add=True, verbose_name="date join")
    last_login = models.DateTimeField(auto_now=True, verbose_name="last login")
    is_admin = models.BooleanField(default=False)
    is_active = models.BooleanField(default=True)
    is_staff = models.BooleanField(default=False)
    is_superuser= models.BooleanField(default=False)

    USERNAME_FIELD = 'email'
    REQUIRED_FIELDS = ['full_name']

    objects = AccountManager()


    def __str__(self):
        return self.email
    
    def has_perm(self, perm, obj=None):
        return self.is_admin

    def has_module_perms(self, app_label):
        return True

错误：

IntegrityError at /accounts/signup/
FOREIGN KEY constraint failed

错误来自这些代码（allauth源代码）：

... self.user = form.save(self.request)
... user = super(CustomSignUpForm, self).save(request)
... setup_user_email(request, user, [])
... a.save()

当我检查“a.save()”附近的代码和局部变量时，我看到了：

a: <EmailAddress: emuradyan07@gmail.com>        

addresses, primary = cleanup_email_addresses(
    request, priority_addresses + addresses
)

for a in addresses:
  a.user = user
  a.save()
  EmailAddress.objects.fill_cache_for_user(user, addresses)
...

在我看来，allauth 在创建新用户时无法创建 EmailAddress。

Answer 1

我找到了解决办法：

1. 从应用程序中删除迁移和 pycache 文件夹
2. 删除数据库 (db.sqlite3)
3. 创建 db.sqlite3
4. python manage.py makemigrations user，其中用户是应用名称
5. python manage.py migrate