protected function doSorting(&$children)
{
$orderMethod = Input::get('order', 'name');
$orderDir = Input::get('dir', 'asc');
if (!Sorting::validOrderMethod($orderMethod)) {
$orderMethod = 'name';
}
if (!Sorting::validOrderDirection($orderDir)) {
$orderDir = 'asc';
}
// if the values are default then skip sorting as the paths already in order
if ($orderMethod !== 'name' || $orderDir !== 'asc') {
Sorting::sort($children, $orderMethod, $orderDir);
}
$invOrderDir = $orderDir === 'asc' ? 'desc' : 'asc';
$params = array('orderMethod' => $orderMethod, 'orderDir' => $orderDir, 'invOrderDir' => $invOrderDir);
return $params;
}