将自动生成的用户名存储到数据库DJango中

from django.contrib.auth.models import AbstractUser
from django.db import models

class CustomUser(AbstractUser):
    # 添加额外字段
    generated_username = models.CharField(max_length=255)

python manage.py makemigrations
python manage.py migrate

from django.contrib.auth import get_user_model
from django.db.models.signals import post_save
from django.dispatch import receiver

User = get_user_model()

@receiver(post_save, sender=User)
def generate_username(sender, instance, created, **kwargs):
    if created and not instance.generated_username:
        # 自动生成用户名的逻辑
        generated_username = ...
        instance.generated_username = generated_username
        instance.save()

def get_generated_username(request):
    user = CustomUser.objects.get(username=request.user.username)
    generated_username = user.generated_username
    return generated_username