django检查对象是否在一个树结构中

def check_is_in_tree(obj, query_set, **kwargs):
    child_query_set = query_set.filter(**kwargs)
    is_in = False
    if child_query_set:
        if obj in child_query_set:
            is_in = True
        else:
            for child_org in child_query_set:
                kwargs[list(kwargs.keys())[0]] = child_org
                is_in = check_is_in_tree(obj, query_set, **kwargs)
    return is_in



# 使用示例
check_is_in_tree(org_obj,
                 Organization.objects.all(),
                 ParentOrg=created_user.Organization)