在django中更新从用户模型获取数据的模型字段

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

class UserProfile(models.Model):
    user = models.OneToOneField(User, on_delete=models.CASCADE)
    bio = models.TextField(blank=True)
    location = models.CharField(max_length=100, blank=True)

    def __str__(self):
        return self.user.username

@receiver(post_save, sender=User)
def update_user_profile(sender, instance, created, **kwargs):
    if created:
        UserProfile.objects.create(user=instance)
    instance.userprofile.save()

# 使用自定义管理器更新字段
class UserProfileManager(models.Manager):
    def update_profile(self, user_id, bio=None, location=None):
        profile = self.get(user_id=user_id)
        if bio is not None:
            profile.bio = bio
        if location is not None:
            profile.location = location
        profile.save()
        return profile

# 将自定义管理器应用到模型
class UserProfile(models.Model):
    user = models.OneToOneField(User, on_delete=models.CASCADE)
    bio = models.TextField(blank=True)
    location = models.CharField(max_length=100, blank=True)

    objects = UserProfileManager()

    def __str__(self):
        return self.user.username