public function contactsLinks($params)
 {
     waLocale::loadByDomain('photos');
     // TODO: take a look to other models related with contacts
     $links = array();
     $comments_model = new photosCommentModel();
     foreach ($params as $contact_id) {
         $links[$contact_id] = array();
         if ($count = $comments_model->countByField('contact_id', $contact_id)) {
             $links[$contact_id][] = array('role' => _wd('photos', 'Comments author'), 'links_number' => $count);
         }
     }
     return $links;
 }