# models.py
from django.contrib.auth.models import User
# Create your models here.
class Profile(models.Model):
    user = models.ForeignKey(User, on_delete=models.CASCADE)
    avatar = models.ImageField(upload_to=avatar_photo_upload, blank=True)
    banner = models.ImageField(upload_to=banner_photo_upload, blank=True)

    bio = models.TextField(max_length=150, blank=True)

    date_joined = models.DateField(auto_now_add=True)
    time_joined = models.TimeField(auto_now_add=True)

    def __str__(self) -> str:
        return self.user.username

class Friend(models.Model):
    # The friends, sender first, reciever second
    friends = models.ManyToManyField(Profile)

    # accepted or rejected
    accepted = models.BooleanField(default=False)
    rejected = models.BooleanField(default=False)

    date_added = models.DateField(auto_now=True)
    time_added = models.TimeField(auto_now=True)

    def __str__(self):
        if self.accepted == False and self.rejected == False:
            return f'{" sent a request to ".join([i.user.username for i in self.friends.all()])}'
        else:
            if self.accepted == True and self.rejected == True:
                return f'{" was a friend of ".join([i.user.username for i in self.friends.all()])}'
            elif self.accepted == True and self.rejected == False:
                return f'{" is a friend of ".join([i.user.username for i in self.friends.all()])}'
            else:
                return f'{" was rejected as a friend by ".join([i.user.username for i in self.friends.all()])}'

friends字段是many-to-many field，通过一个示例来理解我的问题：
例如-〉创建了配置文件对象a，然后创建了配置文件对象b。现在我在friend字段中添加了配置文件对象b，然后添加了对象a，但是friend字段将它们排序为a，然后是b ...
如何按添加的时间订购它们。
谢谢你。

• • 编辑：**

预期产出：与插入值的顺序相同。