"订购Djang所致的无限循环"

Question

当我试图从模型中删除记录时，出现以下错误：

Infinite loop caused by ordering

class Empresa(MPTTModel):
    nombre = models.CharField(max_length=35, unique=True, db_index=True)
    parent = TreeForeignKey('Empresa', blank=True, null=True, related_name='children')
    nivel = models.PositiveIntegerField(default=1)
    class MPTTMeta:
        order_insertion_by = ['nivel']
    class Meta:
        ordering = ['parent__id']

提前谢谢

Answer 1

您是否尝试过使用self？在

 parent = TreeForeignKey('self', blank=True, null=True, related_name='children'

然后移除

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