Making the show page url at the site root after logging in - ruby-on-rails

Question

Currently, when a user logs in or signs up, they are redirected to /users/1, for example, as their show page.
I can't figure out what routes to use to redirect them to just the site root (example.com, for example, instead of example.com/users/1). The logged in site root would be the show page, the logged out site root would be the normal site home page.
I'm using devise, if it matters.
Current routes:
devise_for :users, :path => '', :path_names => { :sign_in => 'login', :sign_out => 'logout',
:password => 'password', :confirmation => 'verification',
:unlock => 'unblock', :registration => 'signup',
:sign_up => 'new' }
devise_scope :user do
get 'login', to: 'devise/sessions#new'
get 'users/login', to: 'devise/sessions#new'
get 'logout', to: 'devise/sessions#destroy'
get 'signup', to: 'devise/registrations#new'
get 'password', to: 'devise/passwords#new'
match 'users/secret', to: "devise/passwords#create", via: :post
match 'sessions/user', to: 'devise/sessions#create', via: :post
match 'users/signup', to: 'devise/registrations#create', via: :post
match 'users/signup', to: 'devise/registrations#create', via: :post
end
resources :users
resources :sessions
root 'site#index'
Updated Routes:
devise_for :users, :path => '', :path_names => { :sign_in => 'login', :sign_out => 'logout',
:password => 'password', :confirmation => 'verification',
:unlock => 'unblock', :registration => 'signup',
:sign_up => 'new' }
get 'login' => 'users/login'
devise_scope :user do
get 'login', to: 'devise/sessions#new'
get 'users/login', to: 'devise/sessions#new'
get 'logout', to: 'devise/sessions#destroy'
get 'signup', to: 'devise/registrations#new'
get 'password', to: 'devise/passwords#new'
match 'users/secret', to: "devise/passwords#create", via: :post
match 'sessions/user', to: 'devise/sessions#create', via: :post
match 'users/signup', to: 'devise/registrations#create', via: :post
match 'users/signup', to: 'devise/registrations#create', via: :post
end
get '', to: 'users#show', as: 'user'
get 'edit', to: 'users#edit', as: 'user/edit'
#resources :users
resources :sessions
# Authenticated Users:
authenticated :user do
root to: "users#show", as: :authenticated_root
end
# Non-Authenticated Users
root to: 'site#index'

Answer 1

You can use authenticated and unauthenticated resources.
Like this:
authenticated :user do
root to: "users#show", as: :authenticated_root, via: :get
end
unauthenticated do
root 'site#index'
end
Then in your users controller you'll need to make sure to check for the devise helper current_user instead of the id because you aren't passing one.
like
if params[:id]
#user = User.find params[:id]
else
#user = current_user
end
If you don't want users to be able to access this route, its easier to manage in the controller. Just modify the if statement, something like
if params[:id]
if current_user
#user = current_user
else
flash[:notice] = "This page is not available"
redirect_to root_path
end
else
#user = current_user
end
Updated routes:
devise_for :users, :path => '', :path_names => { :sign_in => 'login', :sign_out => 'logout',
:password => 'password', :confirmation => 'verification',
:unlock => 'unblock', :registration => 'signup',
:sign_up => 'new' }
get 'login' => 'users/login'
devise_scope :user do
get 'login', to: 'devise/sessions#new'
get 'users/login', to: 'devise/sessions#new'
get 'logout', to: 'devise/sessions#destroy'
get 'signup', to: 'devise/registrations#new'
get 'password', to: 'devise/passwords#new'
match 'users/secret', to: "devise/passwords#create", via: :post
match 'sessions/user', to: 'devise/sessions#create', via: :post
match 'users/signup', to: 'devise/registrations#create', via: :post
match 'users/signup', to: 'devise/registrations#create', via: :post
end
#resources :users
resources :sessions
# Authenticated Users:
authenticated :user do
root to: "users#show", as: :authenticated_root
end
# Non-Authenticated Users
root to: 'site#index'
get '', to: 'users#show', as: 'user'
get 'edit', to: 'users#edit' as: 'user'

Answer 2

In your routes.rb (change the destination to: to the pages you wish)
YourApp::Application.routes.draw do
...
# Authenticated Users:
authenticated :user do
root to: 'user#show', as: :authenticated_root
end
# Non-Authenticated Users
root to: 'site#index'
end
Rails 4 Fix: https://github.com/plataformatec/devise/issues/2393#issuecomment-17298414
In UserController.rb: Make sure in your show method, that you use current_user instead of params[:id]. You do this because typically whenever you call your show action you send it an id, however in this case, you're not going to be doing so.
class UsersController < ApplicationController
def show
if params[:id].present?
#user = User.find(params[:id])
else
#user = current_user
end
end
end