无法通过(....)实例访问Manager [英] Manager isn't accessible via (....) instances

问题描述

我有两个表，分别是Stuff和Boss.基于用户的slug(user_type)，我定义将要使用的表.

I have two tables namely Stuff and Boss. Based on the slug(user_type) from the user, I define which table is going to be used.

def Person_info(request,user_type):
    if user_type=="Staff":
        item=Staff()
    elif user_type=="Boss":
        item=Boss()

.................

然后，我需要从表中获取项目的最后一个ID.

Then, I need to get the last id for item from its table.

但是，当我尝试获取Staff表的最后一个ID时，出现了无法通过Staff实例访问Manager的信息".

But, I am having "Manager isn't accessible via Staff instances" When I try to get the last id of Staff table.

如何绕过此问题?

推荐答案

您正在使用实例进行查询，这是不正确的.

You are querying using the instance, which is incorrect.

按如下所示更改您的代码:

Change your code as below:

def Person_info(request,user_type):
if user_type=="Staff":
    # Note no () at the end, which makes the item an instance by instantiating it, not a class by assigning it
    item=Staff
elif user_type=="Boss":
    item=Boss
....

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