/**
* Returns all event occurrences (one-time and recurring) in a given time range
* To prevent memory leaks, the return is a sorted array formatted as:
* <code>
* array(
* 0 => array(
* 'id' => $guid,
* 'start' => $start_time,
* 'end' => $end_time,
* 'title' => $title,
* 'description' => $description,
* 'url' => $url,
* ...
* ),
* );
* </code>
*
* @param int $starttime Range start timestamp
* @param int $endtime Range end timestamp
* @param bool $export Export EventInstance objects to array
* @param string $consumer Consumer name (passed to the export hook, so plugins can decide on exportable values)
* @return EventsInstance[]|array
*/
public function getAllEventInstances($starttime = null, $endtime = null, $export = true, $consumer = '', $tz = null)
{
$instances = array();
if (!Util::isValidTimezone($tz)) {
if (elgg_is_logged_in()) {
// if logged in use the timezone settings of the current user
$tz = Util::getClientTimezone();
} else {
// use timezone of calendar owner
$tz = Util::getClientTimezone($this->getOwnerEntity());
}
}
$events = $this->getAllEvents($starttime, $endtime);
foreach ($events as $event) {
/* @var $event Event */
if (!$event instanceof Event) {
continue;
}
$start_times = $event->getStartTimes($starttime, $endtime, $tz);
foreach ($start_times as $start_time) {
$instance = new EventInstance($event, $start_time);
$instance->setCalendar($this);
$instances[] = $instance;
}
}
usort($instances, array($this, 'compareInstancesByStartTime'));
if ($export) {
foreach ($instances as $key => $instance) {
$instances[$key] = $instance->export($consumer);
}
}
return $instances;
}
/**
* Returns an iCal feed for this event
*
* @param int $starttime Range start timestamp
* @param int $endtime Range end timestamp
* @param string $filename Filename used for output file
* @return string
*/
public function toIcal($starttime = null, $endtime = null, $filename = 'event.ics')
{
if (is_null($starttime)) {
$starttime = $this->getNextOccurrence();
}
$eventInstance = new EventInstance($this, $starttime);
//$this->getAllEventInstances($starttime, $endtime, true, 'ical');
$instance = $eventInstance->export('ical');
$config = array('unique_id' => $this->guid, 'allowEmpty' => true, 'nl' => "\r\n", 'format' => 'iCal', 'delimiter' => DIRECTORY_SEPARATOR, 'filename' => $filename);
$v = new vcalendar($config);
$v->setProperty('method', 'PUBLISH');
$v->setProperty("X-WR-CALNAME", implode(' - ', array(elgg_get_config('sitename'), $this->getDisplayName())));
$v->setProperty("X-WR-CALDESC", strip_tags($this->description));
$v->setProperty("X-WR-TIMEZONE", Util::UTC);
$e =& $v->newComponent('vevent');
$organizer = elgg_extract('organizer', $instance, array());
unset($instance['organizer']);
$reminders = elgg_extract('reminders', $instance, array());
unset($instance['reminders']);
foreach ($instance as $property => $value) {
$e->setProperty($property, $value);
}
if (!empty($organizer)) {
if (is_email_address($organizer)) {
$e->setProperty('organizer', $organizer);
} else {
$e->setProperty('organizer', elgg_get_site_entity()->email, array('CN' => $organizer));
}
}
if (!empty($reminders)) {
foreach ($reminders as $reminder) {
$a =& $e->newComponent('valarm');
$a->setProperty('action', 'DISPLAY');
$a->setProperty('trigger', "-PT{$reminder}S");
}
}
$v->returnCalendar();
}
