Stale page added in controller

Gemfile.lock

@@ -396,7 +396,7 @@ DEPENDENCIES
   recaptcha
   rest-client
   rspec
-  rubocop
+  rubocop (~> 0.52.0)
   ruby-openid
   sass-rails (~> 4.0.0)
   scrypt (~> 3)

app/controllers/wiki_controller.rb

@@ -306,6 +306,26 @@ def index
     @paginated = true
   end
 
+  def stale
+    @title = I18n.t('wiki_controller.wiki')
+
+    order_string = if params[:order] == 'alphabetic'
+                     'node_revisions.title ASC'
+                   else
+                     'node_revisions.timestamp ASC'
+                   end
+
+    @wikis = Node.includes(:revision)
+                 .references(:node_revisions)
+                 .group('node_revisions.nid')
+                 .order(order_string)
+                 .where("node_revisions.status = 1 AND node.status = 1 AND (type = 'page' OR type = 'tool' OR type = 'place')")
+                 .page(params[:page])
+
+    @paginated = true
+    render template: 'wiki/index'
+  end
+
   def popular
     @title = I18n.t('wiki_controller.popular_wiki_pages')
     @wikis = Node.limit(40)

config/routes.rb

@@ -102,6 +102,7 @@
   get 'wiki/:lang/:id' => 'wiki#show'
   get 'wiki/edit/:lang/:id' => 'wiki#edit'
   get 'wiki' => 'wiki#index'
+  get 'wiki' => 'wiki#stale'
 
   get 'place/:id/feed' => 'place#feed'
   get 'n/:id' => 'notes#shortlink'