Django:模型之间的参考

救命!

我有以下两种型号:

class Account(models.Model):
    username = models.OneToOneField(User, primary_key=True, unique=True)
    receiveaddress = models.CharField(max_length=40, blank=True, null=True, unique=True)
    balance = models.DecimalField(max_digits=16, decimal_places=8, default=0)

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


class Deposits(models.Model): 
    receiveaddress = models.CharField(max_length=40, blank=True, null=True, unique=True)
    amount = models.DecimalField(max_digits=16, decimal_places=8, default=0)

    user = ?????????????????

    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)
    confirmed = models.BooleanField(default=False)
    accounted = models.BooleanField(default=False)  

    def __str__(self):
        return str(self.receiveaddress)

示例: 可视化

我的问题:

我希望"Deposits.user" 自动引用此"receiveaddress"所属的用户.在这个例子中,那是TIM.我浪费了6个小时试图搞清楚,我做错了什么？

提前致谢.