public function purgeSearchTables()
{
$objDatabase = \Database::getInstance();
// Truncate the tables
$objDatabase->execute("TRUNCATE TABLE tl_search");
$objDatabase->execute("TRUNCATE TABLE tl_search_index");
$strCachePath = str_replace(TL_ROOT . DIRECTORY_SEPARATOR, '', \System::getContainer()->getParameter('kernel.cache_dir'));
// Purge the cache folder
$objFolder = new \Folder($strCachePath . '/contao/search');
$objFolder->purge();
// Add a log entry
$this->log('Purged the search tables', __METHOD__, TL_CRON);
}