public function checkAccess(array $a_users)
 {
     include_once "Modules/Portfolio/classes/class.ilPortfolioAccessHandler.php";
     $access_handler = new ilPortfolioAccessHandler();
     foreach ($a_users as $user_id) {
         if ($access_handler->checkAccessOfUser($user_id, "read", "view", $this->prtf_id, "prtf")) {
             return true;
         }
     }
     return false;
 }
 /**
  * Check access rights for portfolio pages
  *
  * @param    int     	object id (glossary)
  * @param    int         page id (definition)
  * @return   boolean     access given (true/false)
  */
 private function checkAccessPortfolioPage($obj_id, $page_id)
 {
     include_once "Services/Portfolio/classes/class.ilPortfolioAccessHandler.php";
     $access_handler = new ilPortfolioAccessHandler();
     foreach ($this->check_users as $user_id) {
         if ($access_handler->checkAccessOfUser($user_id, "read", "view", $obj_id, "prtf")) {
             return true;
         }
     }
     return false;
 }