PathLangTable::purge

static function purge(?TranslateFilter $filter = null): void
{
	$relPath = isset($filter, $filter->path) ? $filter->path : '';

	if (!empty($relPath))
	{
		$relPath = rtrim($relPath, '/');

		static::bulkDelete(['=%PATH' => $relPath .'%']);
	}
	else
	{
		static::bulkDelete();
	}
}