Custom Product Catalog Bean File

ProductTemplate.php

<?php
/**
 * Overriding PC bean to enable ACL
 * custom/modules/ProductTemplates/ProductTemplate.php
 */
require_once("modules/ProductTemplates/ProductTemplate.php");
class CustomProductTemplate extends ProductTemplate
{
    public function __construct()
    {
        parent::__construct();
        // enable row level security
        $this->disable_row_level_security = false;
    }
    //implement ACL access for ProductTemplate module
    public function bean_implements($interface)
    {
        switch ($interface) {
            case 'ACL':
                return true;
        }
        return false;
    }
}