From 89018d89ecb0f07efa05048cc859447d341431e0 Mon Sep 17 00:00:00 2001
From: Luca Guidi <guidi.luca@gmail.com>
Date: Mon, 6 Apr 2009 12:37:32 +0200
Subject: [PATCH] Added locales controller

---
 app/controllers/locales_controller.rb      | 14 ++++++++++++++
 app/helpers/locales_helper.rb              |  2 ++
 config/routes.rb                           |  3 ++-
 test/functional/locales_controller_test.rb | 14 ++++++++++++++
 4 files changed, 32 insertions(+), 1 deletion(-)
 create mode 100644 app/controllers/locales_controller.rb
 create mode 100644 app/helpers/locales_helper.rb
 create mode 100644 test/functional/locales_controller_test.rb

diff --git a/app/controllers/locales_controller.rb b/app/controllers/locales_controller.rb
new file mode 100644
index 0000000..3824b0c
--- /dev/null
+++ b/app/controllers/locales_controller.rb
@@ -0,0 +1,14 @@
+class LocalesController < ApplicationController
+  before_filter :normalize_http_referer
+
+  # PUT /locales/en/change
+  def change
+    I18n.locale = params[:id]
+    redirect_to :back
+  end
+
+  private
+    def normalize_http_referer
+      request.env["HTTP_REFERER"] ||= "/"
+    end
+end
diff --git a/app/helpers/locales_helper.rb b/app/helpers/locales_helper.rb
new file mode 100644
index 0000000..2f932ec
--- /dev/null
+++ b/app/helpers/locales_helper.rb
@@ -0,0 +1,2 @@
+module LocalesHelper
+end
diff --git a/config/routes.rb b/config/routes.rb
index 5018aba..c90f0ef 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -1,3 +1,4 @@
 ActionController::Routing::Routes.draw do |map|
-  map.resources :translations, :only => [ :index ], :member => { :save => :post }
+  map.resources :translations, :only => [ :index ], :member => { :save   => :post }
+  map.resources :locales,      :only => [ ],        :member => { :change => :put  }
 end
diff --git a/test/functional/locales_controller_test.rb b/test/functional/locales_controller_test.rb
new file mode 100644
index 0000000..2d4d341
--- /dev/null
+++ b/test/functional/locales_controller_test.rb
@@ -0,0 +1,14 @@
+require File.expand_path(File.dirname(__FILE__) + '/../test_helper')
+
+class LocalesControllerTest < ActionController::TestCase
+  test "routing" do
+    assert_routing({ :method => :put, :path => "/locales/en/change" },
+      :controller => "locales", :action => "change", :id => "en" )
+  end
+
+  test "should change locale" do
+    put :change, :id => "it"
+    assert_redirected_to "/"
+    assert_equal "it", I18n.locale
+  end
+end
\ No newline at end of file