X-Cart forums - New sort option as default

This is a kind of follow up to an old thread https://forum.x-cart.com/showthread.php?t=78285

The module on the page https://developer.x-cart.com/5.4/basics/itemslist_introduction_--_showing_products_on_a_page/adding_new_so...n_to_itemslist shows how to add a new sort option to items list. Now I would like to make this new option the default sort order.

What we have, before adding new sort option is on the admin page admin.php?target=general_settings is what I attach below.

Now the drop down menu seems to come from the class View/FormField/Select/DefaultProductSortOrder.php

So I created a class that looks like

Code:

<?php

namespace XLite\Module\XCExample\SortingByDate\View\FormField\Select;



abstract class  DefaultProductSortOrder extends \XLite\View\FormField\Select\Def

aultProductSortOrder implements \XLite\Base\IDecorator

{

    protected function getDefaultOptions()

    {

        return array(

            'dateAsc'   => static::t('Date asc')

            'priceAsc'  => static::t('Price asc'),

            'priceDesc' => static::t('Price desc'),

            'nameAsc'   => static::t('Name asc'),

            'nameDesc'  => static::t('Name desc'),

        );

    }

}

However, this doesn't even compile (that is, after cache redeployment, there is no corresponding class under /var/run)

So, would anyone know how to make arrival date as default order?