谷歌应用引擎 python:如何扩展 ndb 用户类 [英] google app engine python: how to extend ndb User class

问题描述

我正在使用谷歌云端点并希望能够扩展 User 类，以便对 get_current_user 的调用将返回一个 AppUser> 具有我自己的额外属性的对象.

I'm using google cloud endpoints and want to be able to extend the User class so that a call to get_current_user would return an AppUser object with my own extra properties.

class AppUser(--?--): # what should i put here
    gcm = ndb.StringProperty()

    def send_notification(self):
         # do something with gcm ...
         pass

我怎样才能实现这样的事情?还有更好的方法吗?

how can I implement such a thing ? and is there a better way ?

推荐答案

官方不支持，不建议乱用；有一个更好的方法，只需添加一个新的 Model 并通过 user_id 链接它，然后你就可以用它做任何你想做的事.

It's not supported officially, and I wouldn't recommend messing with it; there's a better way, just add a new Model and link it via the user_id, then you can do whatever you want with it.

class Preferences(ndb.Model):
    gcm = ndb.StringProperty()

user = users.get_current_user()
Preferences(
    gcm='',
    id=user.user_id(),
).put()
prefs = Preferences.get_by_id(user.user_id())

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