/**
* Remove the subscription for the calendar.
* @param int $id
*/
public function actionUnsubscribe($id)
{
$savedCalendarSubscription = SavedCalendarSubscription::getById(intval($id));
$savedCalendarSubscription->delete();
$dataProvider = CalendarUtil::getCalendarItemsDataProvider(Yii::app()->user->userModel);
$savedCalendarSubscriptions = $dataProvider->getSavedCalendarSubscriptions();
$content = CalendarUtil::makeCalendarItemsList($savedCalendarSubscriptions->getSubscribedToSavedCalendarsAndSelected(), 'sharedcalendar[]', 'sharedcalendar', 'shared');
echo $content;
}