public function getClubInfo($id, &$club, &$role, &$potentialMembers, &$isOpen)
 {
     if (!Yii::$app->user->isGuest) {
         $role = Club::getUserRole($id, Yii::$app->user->getId());
     } else {
         $role = null;
     }
     $club = Club::getClubById($id);
     $club['category_name'] = Category::getNameById($club['category_id']);
     if (time() - $club['author_last_visit'] <= 900) {
         $club['author_online'] = 1;
     } else {
         $club['author_online'] = 0;
     }
     $potentialMembers = [];
     if (($role == 1 || $role == 2) && $club['club_type'] == 2) {
         $potentialMembers = Club::getPotentialMembers($id);
     }
     if ($club['club_type'] == 2 && !$role) {
         $isOpen = false;
     } else {
         $isOpen = true;
     }
 }