[英]How to add custom error message when using createsuperuser command in Django?
我已經創建了一個自定義用戶模型,我希望電子郵件和用戶名成為唯一字段。 我正在使用電子郵件作為我的主要用戶名字段。 兩者都是獨特的。 問題是,當我創建了一個“ createsuperuser”時,如果有人已經收到了電子郵件,我會立即收到一個錯誤消息,但是在用戶名字段的情況下,它會在最后檢查唯一條件,從而導致丑陋的Postgres唯一約束失敗錯誤。 我希望像電子郵件字段一樣立即檢查用戶名字段。
檢查下面的圖像。
models.py
from django.contrib.auth.models import AbstractUser, BaseUserManager
from django.db import models
from django.forms import ModelForm
from django.utils.translation import ugettext_lazy as _
class UserManager(BaseUserManager):
"""Define a model manager for User model with no username field."""
use_in_migrations = True
def _create_user(self, email, password, **extra_fields):
"""Create and save a User with the given email and password."""
if not email:
raise ValueError('The given email must be set')
email = self.normalize_email(email)
user = self.model(email=email, **extra_fields)
user.set_password(password)
user.save(using=self._db)
return user
def create_user(self, email, password=None, **extra_fields):
"""Create and save a regular User with the given email and password."""
extra_fields.setdefault('is_staff', False)
extra_fields.setdefault('is_superuser', False)
return self._create_user(email, password, **extra_fields)
def create_superuser(self, email, password, **extra_fields):
"""Create and save a SuperUser with the given email and password."""
extra_fields.setdefault('is_staff', True)
extra_fields.setdefault('is_superuser', True)
if extra_fields.get('is_staff') is not True:
raise ValueError('Superuser must have is_staff=True.')
if extra_fields.get('is_superuser') is not True:
raise ValueError('Superuser must have is_superuser=True.')
return self._create_user(email, password, **extra_fields)
class User(AbstractUser):
"""User model."""
username = models.CharField(max_length=255, unique=True, null=False)
full_name = models.CharField(max_length=255, null=True)
email = models.EmailField(_('email address'), unique=True)
confirm = models.BooleanField(default=False)
USERNAME_FIELD = 'email'
REQUIRED_FIELDS = ['username', 'full_name']
objects = UserManager()
def __str__(self):
return self.email
您可以創建自己的django命令來創建超級用戶。 創建超級用戶命令示例可以是:
# your_app/management/commands/create_custom_superuser.py
from django.contrib.auth import get_user_model
from django.core.management.base import BaseCommand
class Command(BaseCommand):
def handle(self, *args, **options):
if not get_user_model().objects.filter(username="admin").exists():
# you can add some logs here
get_user_model().objects.create_superuser("admin", "admin@admin.com", "admin")
然后,您可以通過python manage.py create_custom_superuser
創建超級用戶。
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