错误记录：(fields.E304) Reverse accessor for '' clashes with reverse accessor for ''.

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最新推荐文章于 2023-07-04 08:50:12 发布

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本文详细解析了在Django模型中使用ForeignKey时遇到的错误E304，即反向访问器冲突问题，并提供了修改related_name参数以区分不同外键反向访问的方法。

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ERRORS:
buy.Orders.buser: (fields.E304) Reverse accessor for ‘Orders.buser’ clashes with reverse accessor for ‘Orders.suser’.
HINT: Add or change a related_name argument to the definition for ‘Orders.buser’ or ‘Orders.suser’.
buy.Orders.suser: (fields.E304) Reverse accessor for ‘Orders.suser’ clashes with reverse accessor for ‘Orders.buser’.
HINT: Add or change a related_name argument to the definition for ‘Orders.suser’ or ‘Orders.buser’.

两个属性都关联一个外键应该加一个related_name

class Orders(models.Model):

	# 两个属性都关联一个外键   应该加一个related_name
    buser = models.ForeignKey(UserInfo, verbose_name='买家',related_name='buser')
    suser = models.ForeignKey(UserInfo, verbose_name='卖家',related_name='suser')
    price = models.DecimalField(verbose_name='价格', max_digits=8, decimal_places=2)
    ordertime = models.DateField(verbose_name='成交时间', auto_now_add=True)
    car = models.OneToOneField(CarInfo, verbose_name='车辆信息')
    # mileage = models.IntegerField(verbose_name='公里数')
    orderStatus = models.IntegerField(verbose_name='订单状态', choices=ORDER_CHOICES, default=0)
    isDelete = models.BooleanField(verbose_name='是否删除', default=False)

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

    class Meta:
        verbose_name = '交易记录表'
        verbose_name_plural = verbose_name