Devise with rails 4 authenticated root route not working

Question

What I'm trying to do

I want to send a user to the registrations#new page if they aren't logged in.

After you enter login info and click submit, I want you to be sent to the registrations#show page.

What is happening

It sends you to the registrations#new page when you're not logged in (correct so far). But when you submit the login form, it sends errors out with a redirect loop. The server's output is just this block repeated over and over:

Started GET "/" for 127.0.0.1 at 2013-09-25 02:31:59 -0400
Processing by RegistrationsController#new as HTML
  User Load (0.7ms)  SELECT "users".* FROM "users" WHERE "users"."id" = 8 ORDER BY "users"."id" ASC LIMIT 1
Redirected to http://lvh.me:3000/
Filter chain halted as :require_no_authentication rendered or redirected
Completed 302 Found in 2ms (ActiveRecord: 0.7ms)

I can't seem to figure it out. It does log you in, as I can see that by manually navigating to a different page, but the authenticated root path is not working correctly. I've tried a few different combinations in my routes file and can't seem to get it. The code I'm using is based off of this thread

My code

In my application controller I have before_filter :authenticate_user!

My routes file:

devise_for :users, :controllers => {
  :registrations => "registrations"
}

devise_scope :user do
  root to: "registrations#new"
end

authenticated :user do
  root to: "registrations#show", :as => "profile"
end

unauthenticated do
  root to: "registrations#new", :as => "unauthenticated"
end

Answer 1

First, you should customize Devise::RegistrationsController (you can add file app/controllers/registrations_controller.rb)

And see prepend_before_filter on devise registrations_controller.rb

prepend_before_filter :require_no_authentication, :only => [ :new, :create, :cancel ]
prepend_before_filter :authenticate_scope!, :only => [:edit, :update, :destroy]

Add show action to prepend_before_filter :authenticate_scope!

registrations_controller.rb

class RegistrationsController < Devise::RegistrationsController
  prepend_before_filter :require_no_authentication, :only => [ :new, :create, :cancel ]
  prepend_before_filter :authenticate_scope!, :only => [:edit, :update, :destroy, :show]

  # GET /resource/sign_up
  def new
    super
  end

  # POST /resource
  def create
    super
  end

  # GET /resource/edit
  def edit
    super
  end

  def update
    super
  end

  # DELETE /resource
  def destroy
    super
  end

  def show
  end


  protected

  def after_sign_up_path_for(resource)
    after_sign_in_path_for(resource)
  end

end

Also copy the view of devise registration (edit and new template) to /app/views/registrations/ and You can make a file show.html.erb in /app/views/registrations/ folder for a profile page.

For routes of devise looks like :

devise_for :users, :skip => [:registrations]

devise_for :users, :controllers => {
  :registrations => "registrations"
}

authenticated :user do
  devise_scope :user do
    root to: "registrations#show", :as => "profile"
  end
end

unauthenticated do
  devise_scope :user do
    root to: "registrations#new", :as => "unauthenticated"
  end
end

Last, you to set a "path" in after_sign_in_path_for(resource) and after_sign_out_path_for(resource_or_scope) at file application_controller.rb

class ApplicationController < ActionController::Base
  protect_from_forgery

  private

   def after_sign_in_path_for(resource)
     # After you enter login info and click submit, I want you to be sent to the registrations#show page
     profile_path
   end
   def after_sign_out_path_for(resource_or_scope)
     new_user_session_path
   end
end

Note: I have tried this (to make sample apps), and it works. See log when sign in here, and log sign out here

Answer 2

The redirect to registration#new is default so all you need to do is this (in your route file):

devise_for :users, :controllers => {
  :registrations => "registrations"
}

devise_scope :user do
  root to: "registrations#show" # This is the root path of the user when you are logged in
end

unauthenticated do
  root to: "registrations#new", :as => "unauthenticated"
end

# I dont't think this part is neccesary... Try if it works without
authenticated :user do
  root to: "registrations#show", :as => "profile"
end

Answer 3

Do not use routes to do the jobs belonging to controller.

To redirect an user to certain page after signing up, use Devise built-in after_sign_up_path_for and override it.

class ApplicationController
  def after_sign_up_path_for(resource)
    faked_user_profile_path(resource)
  end
end

For routes, I'm not very aware of all of them except devise_for part. But for the redirecting feature, this overriding should be enough.