[英]Fetch user model data and update another model in django
我有用戶 model 使用 AbstractBaseUser class。 我正在使用 email、用戶名和密碼注冊用戶。 用戶 class:
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
我想將此 model 擴展到另一個名為 Employee 的 model。 為了將用戶 model 擴展到員工 model,我使用了 django 信號 ZA2F2ED4F8EBC2CBB4C21A29DC40AB61D 員工 class:
class Employee(models.Model):
"""
Create employee attributes
"""
employee_user = models.OneToOneField(settings.AUTH_USER_MODEL, on_delete=models.CASCADE, blank=True)
e_id = models.IntegerField(unique=True, null=True, blank=True)
first_name = models.CharField(max_length=128,blank=True)
last_name = models.CharField(max_length=128, blank=True)
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)
@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???
您可以執行Employee.objects.create(employee_user=instance, email=instance.email)
,但您應該評估是否需要在兩個表中重復數據。 只要您有 Employee 實例,您就可以隨時訪問employee.employee_user.email
。
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