execute() public method

public execute ( $request )
 /**
  * Save profile settings.
  */
 function execute($request)
 {
     $user = $request->getUser();
     $journalDao = DAORegistry::getDAO('JournalDAO');
     $openAccessNotify = $request->getUserVar('openAccessNotify');
     $userSettingsDao = DAORegistry::getDAO('UserSettingsDAO');
     $journals = $journalDao->getAll(true);
     while ($thisJournal = $journals->next()) {
         if ($thisJournal->getSetting('publishingMode') == PUBLISHING_MODE_SUBSCRIPTION && $thisJournal->getSetting('enableOpenAccessNotification')) {
             $currentlyReceives = $user->getSetting('openAccessNotification', $thisJournal->getId());
             $shouldReceive = !empty($openAccessNotify) && in_array($thisJournal->getId(), $openAccessNotify);
             if ($currentlyReceives != $shouldReceive) {
                 $userSettingsDao->updateSetting($user->getId(), 'openAccessNotification', $shouldReceive, 'bool', $thisJournal->getId());
             }
         }
     }
     parent::execute($request);
 }