Devise redirect back to the original location after sign in or sign up?

Question

Here I\'m using Devise Gem for authentication. If someone want to open page without login then it redirect to sign_in page and after signed in it back to the page which user

Answer 1

As of Devise 4, it worked seamlessly for me:

Devise automatically redirects on sign in and sign up as long as you store the location of the current page using devise's store_location_for(resource). To do this, edit your ApplicationController in app/controllers/application_controller.rb. Add:

# saves the location before loading each page so we can return to the
# right page. If we're on a devise page, we don't want to store that as the
# place to return to (for example, we don't want to return to the sign in page
# after signing in), which is what the :unless prevents
before_filter :store_current_location, :unless => :devise_controller?

private
  # override the devise helper to store the current location so we can
  # redirect to it after loggin in or out. This override makes signing in
  # and signing up work automatically.
  def store_current_location
    store_location_for(:user, request.url)
  end

Add the following to the ApplicationController to make sign out redirect:

private
  # override the devise method for where to go after signing out because theirs
  # always goes to the root path. Because devise uses a session variable and
  # the session is destroyed on log out, we need to use request.referrer
  # root_path is there as a backup
  def after_sign_out_path_for(resource)
    request.referrer || root_path
  end

Answer 2

gem 'devise', '~> 4.4.0'

1. Create sessions_controller.rb: class SessionsController < Devise::SessionsController

2. Add the following (modifying the regex if your login url isn't /users)

   def before_login
     session[:previous_url] = request.fullpath unless request.fullpath =~ /\/users/
   end
   
   def after_login
     session[:previous_url] || root_path
   end
   

Notice that this does not work if you've got /users/dashboard or other locations under /users. Might want to get more specific with the regex.