function update($data)
{
$uid = substr($data['uid'], strlen('event-'));
$oldCalName = $data['oldCalName'];
$calName = $data['calName'];
$eventStart = $data['eventStart'];
$eventEnd = $data['eventEnd'];
$eventText = $data['eventText'];
if ($calName == null) {
throw new Exception("no calendar name");
}
if ($uid == '' && ($eventStart == null || $eventEnd == null)) {
throw new Exception("no start/end date");
}
if ($uid == '' && $eventText == '') {
throw new Exception("haven't created event because text is empty");
}
if ($oldCalName != null) {
// we have an old calendar, so move event from that cal to $calName
// possibly updating event summary as well
$this->moveEvent($uid, $eventText, $oldCalName, $calName);
} else {
if ($uid == '') {
// No UID so create a new event
$event = new vevent();
$event->setProperty('summary', $eventText);
$event->setProperty('dtstart', $eventStart, array('VALUE' => 'DATE'));
$event->setProperty('dtend', $eventEnd, array('VALUE' => 'DATE'));
$uid = $event->getProperty('uid');
$cal = new Calendar($calName);
$cal->setComponent($event);
$cal->save();
return $uid;
} else {
if ($eventText === '') {
// Event text is now empty, so delete event
$cal = new Calendar($calName);
$cal->deleteComponent($uid);
$cal->save();
} else {
// Update the event
$cal = new Calendar($calName);
$event = $cal->getComponent($uid);
if ($eventText != null) {
$event->setProperty('summary', $eventText);
}
if ($eventStart != null) {
$event->setProperty('dtstart', $eventStart, array('VALUE' => 'DATE'));
}
if ($eventEnd != null) {
$event->setProperty('dtend', $eventEnd, array('VALUE' => 'DATE'));
}
$cal->setComponent($event, $uid);
$cal->save();
}
}
}
}
/**
* Returns modified ical uid for google recurring edited events.
*
* @param vevent $e Vevent object.
*
* @return string ICAL uid.
*/
protected function _get_ical_uid($e)
{
$ical_uid = $e->getProperty('uid');
$recurrence_id = $e->getProperty('recurrence-id');
if (false !== $recurrence_id) {
$ical_uid = implode('', array_values($recurrence_id)) . '-' . $ical_uid;
}
return $ical_uid;
}
