/**
  * @brief Copies parent's informations to child item
  *
  * @param array $item a referance to an array with wall comment informations
  * @param ArticleComment $parent parent comment
  * @param Title $title title object instance
  *
  * @author Andrzej 'nAndy' Łukaszewski
  */
 private function mapParentData(&$item, $parent, $title)
 {
     $app = F::app();
     $app->wf->ProfileIn(__METHOD__);
     $metaTitle = $parent->getMetaTitle();
     if (!empty($metaTitle)) {
         $item['title'] = $metaTitle;
     } else {
         $item['title'] = wfMsg('wall-no-title');
     }
     $item['url'] = $parent->getMessagePageUrl();
     $parentTitle = $parent->getTitle();
     if ($parentTitle instanceof Title) {
         $item['parent-id'] = $parentTitle->getArticleID();
     }
     $app->wf->ProfileOut(__METHOD__);
 }