private function _calculateRecurrences($event, $periodStartTime, $periodEndTime)
{
$origPeriodStartTime = $periodStartTime;
$origPeriodEndTime = $periodEndTime;
//recurrences can only be calculated correctly if we use the start of the day and the end of the day.
//we'll use the original times later to check if they really overlap.
$periodStartTime = \GO\Base\Util\Date::clear_time($periodStartTime) - 1;
$periodEndTime = \GO\Base\Util\Date::clear_time(\GO\Base\Util\Date::date_add($periodEndTime, 1));
$localEvent = new LocalEvent($event, $origPeriodStartTime, $origPeriodEndTime);
if (!$localEvent->isRepeating()) {
$this->_calculatedEvents[$event->start_time . '-' . $event->name . '-' . $event->id] = $localEvent;
} else {
$rrule = new \GO\Base\Util\Icalendar\Rrule();
try {
$rrule->readIcalendarRruleString($localEvent->getEvent()->start_time, $localEvent->getEvent()->rrule, true);
} catch (\Exception $e) {
trigger_error($e->getMessage() . " Event ID:" . $event->id);
}
//we need to start searching for the next occurrence at the period start
//time minus the duration of the event in days rounded up. Because an
//occurrence may start before the period but end in it.
$rrule->setRecurpositionStartTime(\GO\Base\Util\Date::date_add($periodStartTime, -ceil(($event->end_time - $event->start_time) / 86400)));
// var_dump('=====');
// var_dump(\GO\Base\Util\Date::get_timestamp(\GO\Base\Util\Date::date_add($periodStartTime,-ceil(( ($event->end_time-$event->start_time) /86400)))));
$origEventAttr = $localEvent->getEvent()->getAttributes('formatted');
while ($occurenceStartTime = $rrule->getNextRecurrence(false, $periodEndTime)) {
// var_dump(\GO\Base\Util\Date::get_timestamp($occurenceStartTime));
if ($occurenceStartTime > $localEvent->getPeriodEndTime()) {
break;
}
$localEvent->setAlternateStartTime($occurenceStartTime);
$diff = $event->getDiff();
$endTime = new \GO\Base\Util\Date\DateTime(date('c', $occurenceStartTime));
$endTime->add($diff);
$localEvent->setAlternateEndTime($endTime->format('U'));
if ($localEvent->getAlternateStartTime() < $origPeriodEndTime && $localEvent->getAlternateEndTime() > $origPeriodStartTime) {
if (!$event->hasException($occurenceStartTime)) {
$this->_calculatedEvents[$occurenceStartTime . '-' . $origEventAttr['name'] . '-' . $origEventAttr['id']] = $localEvent;
}
}
$localEvent = new LocalEvent($event, $periodStartTime, $periodEndTime);
}
}
// if (empty($event->rrule)) {
// //not a recurring event
// $this->_calculatedEvents[] = $event->getAttributes('formatted');
// } else {
// $rrule = new \GO\Base\Util\Icalendar\Rrule();
// $rrule->readIcalendarRruleString($event->start_time, $event->rrule);
//
// $rrule->setRecurpositionStartTime($periodStartTime);
//
// $origEventAttr = $event->getAttributes('formatted');
//
// while ($occurenceStartTime = $rrule->getNextRecurrence()) {
//
// if ($occurenceStartTime > $periodEndTime)
// break;
//
// $origEventAttr['start_time'] = \GO\Base\Util\Date::get_timestamp($occurenceStartTime);
//
// $diff = $this->getDiff();
//
// $endTime = new \GO\Base\Util\Date\DateTime(date('c', $occurenceStartTime));
// $endTime->addDiffCompat($diff);
// $origEventAttr['end_time'] = \GO\Base\Util\Date::get_timestamp($endTime->format('U'));
//
// $this->_calculatedEvents[$occurenceStartTime . '-' . $origEventAttr['id']] = $origEventAttr;
// }
//
// ksort($this->_calculatedEvents);
// }
}
