devise rails current_user vs user_signed_in？ [英] devise rails current_user vs user_signed_in?

问题描述

我正在使用Devise on Rails 4.1
我的问题是关于帮助者以及它们与会话的关系。
current_user：告诉您用户是否有用户会话可用。
user_signed_in：告诉你用户是否经过身份验证。

我不明白如果user_signed_in可以有一个current_user，是错误的？

两种方法有什么区别，它与会话如何相关。

谢谢。
Richard Madson

解决方案

current_user 方法返回当前登录的用户，而 user_signed_in？方法用于验证是否有用户登录并返回true或false。如果 user_signed_in？为false，那么 current_user 方法将返回nil。

https://github.com/plataformatec/devise#controller-filters-and-helpers

I am using Devise on Rails 4.1 My question is regarding the helpers and how they relate to sessions. current_user : tells you if there is a user session available for the user. user_signed_in: tells you if the user is authenticated.

I cannot understand how a there can be a current_user if the user_signed_in? is false?

What is the difference between the two methods, and how does it relate to sessions.

THanks. Richard Madson

解决方案

current_user method returns current signed-in user, while user_signed_in? method is used to verify if any user is signed in and returns true or false. if user_signed_in? is false then current_user method will return nil.

https://github.com/plataformatec/devise#controller-filters-and-helpers

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