[英]Update a model field fetching data from user model in django
我有一個使用 AbstractBaseUser 的用戶 model。 我有一個 model 員工使用 Model class。 我希望通過注冊創建用戶時,用戶繼承員工 model 的所有字段。 我在用戶 model 和員工之間建立了 OnetoOne 關系。 但是創建用戶后,當我查詢員工 model 時,我找不到與創建的用戶相關的任何數據。 用戶管理員:
class UserManager(BaseUserManager):
"""
Creates and saves a User with the given email and password.
"""
def create_user(self, email, username, password=None):
if not email:
raise ValueError('Users must have an email address')
user = self.model(
email=self.normalize_email(email),
username=username
)
user.set_password(password)
user.save(using=self._db)
return user
def create_staffuser(self, email,username, password):
user = self.create_user(
email,
password=password,
username=username
)
user.is_staff = True
user.save(using=self._db)
return user
def create_superuser(self, email, username, password):
user = self.create_user(
email,
password=password,
username=username
)
user.is_staff = True
user.is_admin = True
user.save(using=self._db)
return user
用戶:
class User(AbstractBaseUser):
"""
Creates a customized database table for user
"""
email = models.EmailField(
verbose_name='email address',
max_length=255,
unique=True,
)
username = models.CharField(max_length=255, unique=True)
is_active = models.BooleanField(default=True)
is_staff = models.BooleanField(default=False)
is_admin = models.BooleanField(default=False)
USERNAME_FIELD = 'username'
REQUIRED_FIELDS = ['email',]
objects = UserManager()
def get_full_name(self):
# The user is identified by their email address
return self.email
def get_short_name(self):
# The user is identified by their email address
return self.email
def __str__(self):
return self.email
def has_perm(self, perm, obj=None):
"Does the user have a specific permission?"
# Simplest possible answer: Yes, always
return True
def has_module_perms(self, app_label):
"Does the user have permissions to view the app `app_label`?"
# Simplest possible answer: Yes, always
return True
我使用OneToOneField(User, on_delete=models.CASCADE, null=True)
擴展了用戶 model 與 OnetoOne 關系
Employee model:
class Employee(models.Model):
"""
Create employee attributes
"""
employee_user = models.OneToOneField(User, on_delete=models.CASCADE, null=True)
e_id = models.IntegerField(unique=True, null=False)
first_name = models.CharField(max_length=128)
last_name = models.CharField(max_length=128)
address = models.CharField(max_length=256, blank=True)
phone_number = models.CharField(max_length=128, blank=True)
email = models.EmailField(max_length=128, unique=True)
def get_absolute_url(self):
return reverse("employee:employee-list")
@receiver(post_save, sender=User)
def create_or_update_user_profile(sender, instance, created, **kwargs):
if created:
Employee.objects.create(employee_user=instance)
instance.Employee.save()
在這個 model 中還有一個名為 email 的字段。 我必須保留此字段,因為我正在使用此 model 創建員工創建表單。 但問題是,用戶模型的 email 字段與員工 email 字段沖突。 我必須保留兩個 email 字段。
我可以用用戶 email 字段更新員工 email 字段嗎? 如果是,那么應該查詢什么???
您可以嘗試,但所有數據都將在同一個表中:
class Employee(User, models.Model):
...
否則,如果您想使用 OneToOneField 我相信您必須將 User 擴展到models.Model
您已經創建了一個自定義用戶 model 所以您需要從您的設置文件中導入他的 Auth_User_model,而不是使用 django 內置身份驗證用戶。 你可以這樣做
from django.conf import settings
employee_user = models.OneToOneField(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
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