在没有使用Devise的已经signed_in用户的rails中重定向root_path [英] Redirect root_path in rails for already signed_in user without using Devise

问题描述

在我的应用程序中，我有 root_path root'home＃mainPage'，虽然用户已登录，但他可以访问 http：// localhost：3000 / 我不想要。所以我正在关注 http://stackoverflow.com/a/8739874/3786657 回答添加此功能，我得到未定义的方法user_signed_in？用于AuthenticatedUser：Class 。我使用的是Rails 4.2.0

In my application i have root_path root 'home#mainPage' and though a user is signed in , he can accesss http://localhost:3000/ which i dont want. So i am following http://stackoverflow.com/a/8739874/3786657 answer to add this feature and i am getting undefined method user_signed_in? for AuthenticatedUser:Class. I am using Rails 4.2.0

我的路线：

  constraints(AuthenticatedUser) do 
    root :to => "users#show", as: :authenticated
  end

  root 'home#mainPage'

Lib / authenticated_user.rb：

class AuthenticatedUser
  def self.matches?(request)
    user_signed_in?
  end
end

application_helper.rb / p>

application_helper.rb

module ApplicationHelper
    def user_signed_in?
        !!session[:user_id]
    end
    def current_user
        User.find(session[:user_id])
    end
end

配置/ application.rb

config.autoload_paths << Rails.root.join('lib')

推荐答案

user_signed_in？在 ApplicationHelper 中定义的方法不可用于 AuthenticatedUser 。因为你可以从请求中获取会话，我只需直接在 AuthenticatedUser 中查看：

The user_signed_in? method defined in ApplicationHelper is not available to AuthenticatedUser. Since you can get the session from the request I would just check it directly in AuthenticatedUser:

class AuthenticatedUser
  def self.matches?(request)
    !!request.session[:user_id]
  end
end

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