Responsible for any logic needed before the event is saved. Called for
EVERY component in the iCalendar object. Returning false from this method
will cause the current component to be ignored. Returning true causes it
to be processed.
/**
* Responsible for any logic needed before the event is saved. Called for
* EVERY component in the iCalendar object. Returning false from this method
* will cause the current component to be ignored. Returning true causes it
* to be processed.
*
* @param Horde_Icalendar $component The iCalendar component.
*
* @return boolean True to continue processing, false to ignore.
*/
protected function _preSave($component)
{
// Short circuit if we know we don't pass the parent test.
if (!parent::_preSave($component)) {
return false;
}
// Ensure we start with a fresh state.
$this->_existingEvent = null;
$this->_oldAttendees = new Kronolith_Attendee_List();
$this->_noItips = array();
// Get the internal id of the existing copy of the event, if it exists.
try {
$existing_id = $this->_dav->getInternalObjectId($this->_params['object'], $this->_calendar) ?: preg_replace('/\\.ics$/', '', $this->_params['object']);
} catch (Horde_Dav_Exception $e) {
$existing_id = $this->_params['object'];
}
// Check that we don't have newer information already on the server.
try {
// Exception event, so we can't compare timestamps using ids.
// Instead look for baseid/recurrence-id.
$rid = $component->getAttribute('RECURRENCE-ID');
$uid = $component->getAttribute('UID');
if (!empty($rid) && !empty($uid)) {
$search = new stdClass();
$search->baseid = $uid;
$search->recurrenceid = $rid;
$results = $this->_driver->search($search);
foreach ($results as $days) {
foreach ($days as $exception) {
// Should only be one...
$modified = $exception->modified ?: $exception->created;
}
}
}
} catch (Horde_Icalendar_Exception $e) {
// Base event or event with no recurrence.
try {
$this->_existingEvent = $this->_driver->getEvent($existing_id);
$this->_existingEvent->loadHistory();
$modified = $this->_existingEvent->modified ?: $this->_existingEvent->created;
// Get list of existing attendees.
$this->_oldAttendees = $this->_existingEvent->attendees;
} catch (Horde_Exception_NotFound $e) {
$this->_existingEvent = null;
}
}
try {
if (!empty($modified) && $component->getAttribute('LAST-MODIFIED') < $modified->timestamp()) {
/* LAST-MODIFIED timestamp of existing entry is newer:
* don't replace it. */
return false;
}
} catch (Horde_Icalendar_Exception $e) {
}
try {
$organizer = $component->getAttribute('ORGANIZER');
$organizer_params = $component->getAttribute('ORGANIZER', true);
if (!empty($organizer_params[0]['SCHEDULE-AGENT']) && ($organizer_params[0]['SCHEDULE-AGENT'] == 'CLIENT' || $organizer_params[0]['SCHEDULE-AGENT'] == 'NONE')) {
$tmp = str_replace(array('MAILTO:', 'mailto:'), '', $organizer);
$tmp = new Horde_Mail_Rfc822_Address($tmp);
$this->_noItips[] = $tmp->bare_address;
}
} catch (Horde_Icalendar_Exception $e) {
}
try {
$attendee = $component->getAttribute('ATTENDEE');
$params = $component->getAttribute('ATTENDEE', true);
for ($i = 0; $i < count($attendee); ++$i) {
if (!empty($params[$i]['SCHEDULE-AGENT']) && ($params[$i]['SCHEDULE-AGENT'] == 'CLIENT' || $params[$i]['SCHEDULE-AGENT'] == 'NONE')) {
$tmp = str_replace(array('MAILTO:', 'mailto:'), '', $attendee[$i]);
$tmp = new Horde_Mail_Rfc822_Address($tmp);
$this->_noItips[] = $tmp->bare_address;
}
}
} catch (Horde_Icalendar_Exception $e) {
}
return true;
}
