/**
  * save settings
  */
 public function updateSettings()
 {
     global $ilDB, $ilCtrl, $ilUser, $tpl, $ilTabs;
     $form = $this->initSettingsForm();
     if ($form->checkInput()) {
         $mng = $form->getInput('mng');
         if (ilConsultationHourAppointments::setManager($mng)) {
             ilUtil::sendSuccess($this->lng->txt('settings_saved'), true);
             $ilCtrl->redirect($this, 'settings');
         } else {
             $ilTabs->activateTab('ch_settings');
             ilUtil::sendFailure($this->lng->txt('cal_ch_unknown_user'));
             $field = $form->getItemByPostVar('mng');
             $field->setValue($mng);
             $tpl->setContent($form->getHTML());
             return;
         }
     }
 }