/**
  * @desc Update the number of views of a link.
  * @param string[] $weblink : WebLink to update
  */
 public static function update_number_views(WebLink $weblink)
 {
     self::$db_querier->update(WebSetup::$web_table, array('number_views' => $weblink->get_number_views()), 'WHERE id=:id', array('id' => $weblink->get_id()));
 }