如何获得模型中观测的CURRENT_USER？ [英] How to get the current_user in a model observer?

问题描述

由于以下型号：

Room (id, title)
RoomMembers (id, room_id)
RoomFeed, also an observer

在一个房间标题更新，我想创建一个RoomFeed项目，显示出用户是谁谁做的更新。

When a Room title is updated, I want to create a RoomFeed item, showing who the user is who made the update.

@room.update_attributes(:title => "This is my new title")

但问题是在我的观察员RoomFeed：

Problem is in my observer for RoomFeed:

def after_update(record)
   # record is the Room object
end

本是没有办法，我让谁刚才提出的更新的人的user.id。我该如何去这样做？有没有更好的方式来做到更新，所以我得到了CURRENT_USER？

The is no way for me to get the user.id of the person who just made the update. How do I go about doing that? is there a better way to do the update so I get the current_user?

推荐答案

我觉得你在找什么是room.updated_by你的观察中。如果你不想坚持了updated_by，刚刚宣布它作为一个attr_accessor。在你推送更新，请确保您指定CURRENT_USER到updated_by，可能与您的控制器。

I think what you are looking for is, room.updated_by inside your observer. If you don't want to persist the updated_by, just declare it as an attr_accessor. Before you push the update, make sure you assign the current_user to updated_by, may be from you controller.

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