Django:覆盖抽象基类模型中的模型方法

from django.db import models

class BaseModel(models.Model):
    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)

    class Meta:
        abstract = True

    def save(self, *args, **kwargs):
        print("Saving base model")
        super().save(*args, **kwargs)

class UserProfile(BaseModel):
    user = models.OneToOneField(User, on_delete=models.CASCADE)
    bio = models.TextField()

    def save(self, *args, **kwargs):
        print("Saving user profile")
        super().save(*args, **kwargs)

def save(self, *args, **kwargs):
    print("Saving user profile")
    super().save(*args, **kwargs)  # 确保调用基类的 save 方法

class AnotherBaseModel(models.Model):
    created_at = models.DateTimeField(auto_now_add=True)

    class Meta:
        abstract = True

class UserProfile(BaseModel, AnotherBaseModel):
    # 这里会导致字段冲突，因为 created_at 字段被定义了两次
    pass

class UserProfile(BaseModel):
    user = models.OneToOneField(User, on_delete=models.CASCADE)
    bio = models.TextField()
    # 不再继承 AnotherBaseModel