Freunde-System Woltlab Suite

<?php
namespace wcf\system\user\activity\event;
use wcf\data\user\UserList;
use wcf\system\user\activity\event\IUserActivityEvent;
use wcf\system\SingletonFactory;
use wcf\system\WCF;

class FFFriendUserActivityEvent extends SingletonFactory implements IUserActivityEvent {
    /**
     * @see    \wcf\system\user\activity\event\IUserActivityEvent::prepare()
     */
    public function prepare(array $events) {
        $objectIDs = array();
        foreach ($events as $event) {
            $objectIDs[] = $event->objectID;
        }

        // fetch user id and username
        $userList = new UserList();
        $userList->getConditionBuilder()->add("user_table.userID IN (?)", array($objectIDs));
        $userList->readObjects();
        $users = $userList->getObjects();

        // set message
        foreach ($events as $event) {
            if (isset($users[$event->objectID])) {
                $user = $users[$event->objectID];
                
                $event->setIsAccessible();

                $text = WCF::getLanguage()->getDynamicVariable('wcf.user.profile.recentActivity.friend', ['user' => $users[$event->objectID]]);
                $event->setTitle($text);
            }
            else {
                $event->setIsOrphaned();
            }
        }
    }
}