Fixed language change.

app/assets/javascripts/app/controllers/_profile/language.js.coffee

@@ -25,7 +25,7 @@ class Index extends App.Controller
   update: (e) =>
     e.preventDefault()
     params = @formParam(e.target)
-    error = @form.validate(params)
+    error  = @form.validate(params)
     if error
       @formValidate( form: e.target, errors: error )
       return false
@@ -35,13 +35,13 @@ class Index extends App.Controller
     # get data
     @locale = params['locale']
     @ajax(
-      id:   'preferences'
-      type: 'PUT'
-      url:  @apiPath + '/users/preferences'
-      data: JSON.stringify(params)
+      id:          'preferences'
+      type:        'PUT'
+      url:         @apiPath + '/users/preferences'
+      data:        JSON.stringify({user:params})
       processData: true
-      success: @success
-      error:   @error
+      success:     @success
+      error:       @error
     )
 
   success: (data, status, xhr) =>

app/controllers/users_controller.rb

@@ -509,8 +509,8 @@ curl http://localhost/api/v1/users/preferences.json -v -u #{login}:#{password} -
       params[:user].each {|key, value|
         current_user.preferences[key.to_sym] = value
       }
+      current_user.save
     end
-    current_user.save
     render :json => { :message => 'ok' }, :status => :ok
   end
 

test/browser/prefereces_test.rb

@@ -47,9 +47,31 @@ class PreferencesTest < TestCase
             :area    => 'body',
             :value   => 'Language',
           },
+          {
+            :execute => 'select',
+            :css     => '.language_item select[name="locale"]',
+            :value   => 'Deutsch',
+          },
+          {
+            :execute => 'click',
+            :css     => '.content button[type="submit"]',
+          },
+          {
+            :execute => 'watch_for',
+            :area    => 'body',
+            :value   => 'Sprache',
+          },
+          {
+            :execute => 'reload',
+          },
+          {
+            :execute => 'watch_for',
+            :area    => 'body',
+            :value   => 'Sprache',
+          },
         ],
       },
     ]
     browser_signle_test_with_login(tests)
   end
-end
+end