Redirect root_path in rails for already signed_in user without using Devise

Question

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 https://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

My routes:

  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

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

Config/application.rb

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

score 1 · Answer 1 · answered Mar 13 '15 at 19:40

1

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

answered Mar 13 '15 at 19:40

infused

24,000
13
68
78

its saying `Couldn't find User with 'id'=` now – Rahul Dess Mar 13 '15 at 19:57
Its occuring Users controller `# Use callbacks to share common setup or constraints between actions. def set_user @user = User.find(params[:id]) end` – Rahul Dess Mar 13 '15 at 21:55
It looks like whatever page you're hitting does not set params[:id] to a valid user id... – infused Mar 13 '15 at 22:17
actually, using `!!request.session[:user_id]`, id is passing as nil – Rahul Dess Mar 13 '15 at 22:19
There is no `id` in that expression. – infused Mar 13 '15 at 22:25
With `!!request.session[:user_id]` its redirecting to `users#show` but failing..any solution or any other workaround ? – Rahul Dess Mar 13 '15 at 22:33
`def set_user @user = User.find(session[:user_id]) end` instead of using the params should work, but only if the logged in user will be the only person ever accessing that page. If its a public page that others can go to, that won't work. – infused Mar 13 '15 at 22:43
any way to access helper method in lib directory ? – Rahul Dess Mar 13 '15 at 22:45

Redirect root_path in rails for already signed_in user without using Devise

1 Answers1

Linked