public function clean($ttl)
{
$users = SessionDAO::create()->getObsoleteUserIds(DbQueryHelper::timestamp2date(time() - $ttl));
if (!empty($users)) {
SessionDAO::create()->dropByUserIdList($users);
PropertiesDAO::create()->dropByUserIdList($users);
UserBlacklistDAO::create()->dropByUserIdList($users);
UserNotesDAO::create()->dropByUserIdList($users);
UserDAO::create()->dropByUserIdList($users);
}
}
/**
* @return UserNotesDAO|null
*/
public function getUserNotes()
{
if (!$this[self::NOTES] && $this->getId()) {
$this[self::NOTES] = UserNotesDAO::create()->getByUserId($this->getId());
}
return $this[self::NOTES];
}