Implement internationalization

app/controllers/application_controller.rb

@@ -21,7 +21,7 @@ private
     Net::HTTP.post_form(uri, :message => message.to_json)
   end
   def set_locale
-    I18n.locale = :nl
+    I18n.locale = (params[:locale].presence || :nl).to_sym
   end
 
   def layout_by_resource

config/routes.rb

@@ -156,7 +156,10 @@ Qwaiter::Application.routes.draw do
   #
   #root :to => 'dashboard#home'
   root :to => 'pages#home'
-  get "/:name" => "pages#show", constraints: {name: /.*/}, as: :page
+
+  scope '(/:locale)', constraints: {locale: /nl|be|de|fr|en/}, defaults: { locale: :nl } do
+    get "/:name" => "pages#show", constraints: {name: /.*/}, as: :page
+  end
 
   # See how all your routes lay out with "rake routes"