django 软删除 默认查询为True 传任何非bool值查询出所有的

发现了一个Bug：外键的外键不会进行is_valid验证

class ValidQueryset(models.QuerySet):
    def filter(self, *args, **kwargs):
        is_valid = kwargs.pop('is_valid', True)
        if isinstance(is_valid, bool):
            kwargs['is_valid'] = is_valid
        return super().filter(*args, **kwargs)


class BaseManage(models.Manager):
    _queryset_class = ValidQueryset


class BaseModel(models.Model):
    is_valid = models.BooleanField(default=True, verbose_name='数据有效/无效')

    objects = BaseManage()

    class Meta:
        abstract = True