Add the number of unread items when reading an article

index.php

@@ -100,6 +100,7 @@ Router\get_action('show', function() {
     switch ($menu) {
         case 'unread':
             $nav = Model\get_nav_item($item);
+            $nb_unread_items = Model\count_items('unread');
             break;
         case 'history':
             $nav = Model\get_nav_item($item, array('read'));
@@ -113,6 +114,7 @@ Router\get_action('show', function() {
     }
 
     Response\html(Template\layout('show_item', array(
+        'nb_unread_items' => isset($nb_unread_items) ? $nb_unread_items : null,
         'item' => $item,
         'feed' => $feed,
         'item_nav' => isset($nav) ? $nav : null,