function unlock()
{
$_SESSION['REQUEST_IN_PROGRESS'] = null;
unset($_SESSION['REQUEST_IN_PROGRESS']);
if (Config::useLocking() == false) {
return;
}
global $db;
if ($this->firsttimelock == true) {
$this->firsttimelock = false;
$query = "insert into " . Config::dbSurveyData() . "_interviewstatus (suid, primkey, mainseid, status) values(" . $this->getSuid() . ",'" . $this->getPrimaryKey() . "', " . $this->getMainSeid() . "," . INTERVIEW_UNLOCKED . ")";
} else {
$query = "update " . Config::dbSurveyData() . "_interviewstatus set status=" . INTERVIEW_UNLOCKED . " WHERE suid = " . $this->getSuid() . " and primkey = '" . $this->getPrimaryKey() . "' and mainseid=" . $this->getMainSeid() . " LIMIT 1";
}
$res = $db->executeQuery($query);
}
