public function setUntilDateTime(PhutilCalendarDateTime $datetime = null)
{
if ($datetime) {
$value = $datetime->newAbsoluteDateTime()->toDictionary();
} else {
$value = null;
}
return $this->setParameter('untilDateTime', $value);
}
private function newDateTimeProperty($name, PhutilCalendarDateTime $value, array $parameters = array())
{
$datetime = $value->getISO8601();
if ($value->getIsAllDay()) {
$parameters[] = array('name' => 'VALUE', 'values' => array('DATE'));
}
return $this->newProperty($name, $datetime, $parameters);
}