Fix sitemap nil

Fix namespace of role in subrole

app/controllers/admin/sub_roles_controller.rb

@@ -1,4 +1,4 @@
-class Admin::SubRolesController < RolesController
+class Admin::SubRolesController < Admin::RolesController
   
   
 end

app/models/item.rb

@@ -12,7 +12,7 @@ class Item
   field :enabled_for, :type => Array, :default => nil
   field :menu_enabled_for, :type => Array, :default => nil
   field :title, localize: true
-  field :sitemap_enabled, :type => Hash
+  field :sitemap_enabled, :type => Hash, :default => {}
 
  
   validates_format_of :name, :with => /^[0-9a-zA-Z\-_]+$/
@@ -57,7 +57,7 @@ class Item
   end
 
   def show_in_sitemap_for(locale)
-    if sitemap_enabled && !sitemap_enabled[locale].blank?
+    if !sitemap_enabled.blank? && !sitemap_enabled[locale].blank?
       sitemap_enabled[locale].eql?('true') ? true : false
     else
       true