i18n in all pages n links

app/controllers/application_controller.rb

@@ -2,4 +2,12 @@ class ApplicationController < ActionController::Base
   # Prevent CSRF attacks by raising an exception.
   # For APIs, you may want to use :null_session instead.
   protect_from_forgery with: :exception
+
+  before_action do
+      I18n.locale = params[:locale] || I18n.default_locale
+  end
+
+  def default_url_options
+    { locale: I18n.locale }
+  end
 end

app/views/layouts/application.html.erb

@@ -17,7 +17,7 @@
 
 	<header>
 		<div id="header-wrap">
-			<h1><%= link_to "colcho.net", root_path %> </h1>
+			<h1><%= link_to "colcho.net", root_path %></h1>
 			<nav>
 				<ul>
 					<li><%= link_to t('layout.rooms'), rooms_path %> </li>
@@ -38,6 +38,10 @@
 		
 		<%= yield %> 
 	</div>
-
+	<br /><br /><br />
+	<div id="content">
+		<%= link_to_unless I18n.locale == :en, "en", locale: :en %> |
+		<%= link_to_unless I18n.locale == :de, "pt", locale: :pt %>
+	</div>
 </body>
 </html>

config/locales/en.yml

@@ -20,4 +20,31 @@
 # available at http://guides.rubyonrails.org/i18n.html.
 
 en:
-  hello: "Hello world"
+  rooms: 
+    new: 
+      title: New account
+    edit: 
+      title: Edit room
+    show: 
+      title: "Room: %{room_title}"
+      edit: Edit Room
+      location: "Location: %{location}"
+      description: "Description: %{description}"
+  users: 
+    new: 
+      title: Account
+    edit: 
+      title: Edit account
+    show: 
+      title: "Account: %{user_name}"
+      edit: Edit account
+      location: "Location: %{location}"
+      bio: "Bio: %{bio}"
+  links: 
+    back: Back
+  layout: 
+    rooms: Rooms
+    signup: New Account
+  general:
+    form_error: "There are errors on the form, please check"
+

config/locales/pt.yml

@@ -8,7 +8,7 @@ pt:
       title: "Quarto: %{room_title}"
       edit: Ediar quarto
       location: "Localização: %{location}"
-      description: "Description: %{description}"
+      description: "Descrição: %{description}"
   users: 
     new: 
       title: Cadastro
@@ -25,7 +25,7 @@ pt:
     rooms: Quartos
     signup: Cadastro
   general:
-    form_error: "Há erros no formilário, favor verificar"
+    form_error: "Há erros no formulário, favor verificar"
   activerecord: 
     models: 
       room: Quarto

config/routes.rb

@@ -1,7 +1,10 @@
 Rails.application.routes.draw do
-  resources :rooms
-  resources :users
+  scope "(:locale)", locale: /en|pt/ do
+    resources :rooms
+    resources :users
+  end
 
+  get '/:locale' => 'home#index', locale: /en|pt/
   root 'home#index'
 
   # The priority is based upon order of creation: first created -> highest priority.