kerwin_LV的博客

Django2.2 model中manytomany 关联自己时,如果不设置symmetrical=False时,就会出现对称创建,即创建两个关联关系就会创建四条数据.class UserTest2(models.Model): name = models.CharField(max_length=128, null=True, blank=True, verbose_name="名字") leader = models.ManyToManyField("self",related_nam