public function export_event_action($event_id, $range_id = null)
{
$this->range_id = $range_id ?: $this->range_id;
$calendar = new SingleCalendar($this->range_id);
$event = $calendar->getEvent($event_id);
if (!$event->isNew()) {
$export = new CalendarExportFile(new CalendarWriterICalendar());
$export->exportFromObjects($event);
$export->sendFile();
}
$this->render_nothing();
}
