calendar-bundle/src/Resources/contao/classes/Calendar.php
public function generateFeedsByCalendar($intId)
	{
		$objFeed = CalendarFeedModel::findByCalendar($intId);

		if ($objFeed !== null)
		{
			while ($objFeed->next())
			{
				$objFeed->feedName = $objFeed->alias ?: 'calendar' . $objFeed->id;

				// Update the XML file
				$this->generateFiles($objFeed->row());
				$this->log('Generated calendar feed "' . $objFeed->feedName . '.xml"', __METHOD__, TL_CRON);
			}
		}
	}
public function generateFeedsByCalendar($intId)
	{
		$objFeed = CalendarFeedModel::findByCalendar($intId);

		if ($objFeed !== null)
		{
			while ($objFeed->next())
			{
				$objFeed->feedName = $objFeed->alias ?: 'calendar' . $objFeed->id;

				// Update the XML file
				$this->generateFiles($objFeed->row());
				$this->log('Generated calendar feed "' . $objFeed->feedName . '.xml"', __METHOD__, TL_CRON);
			}
		}
	}
Generate all feeds including a certain calendar

@param integer $intId