<?php if (!defined('ABSPATH')) die('No direct access allowed'); final class WOOF_EXT_BY_SKU extends WOOF_EXT { public $type = 'by_html_type'; public $html_type = 'by_sku'; //your custom key here public $index = 'woof_sku'; //index in the search query public $html_type_dynamic_recount_behavior = 'none'; public function __construct() { parent::__construct(); $this->init(); } public function get_ext_path() { return plugin_dir_path(__FILE__); } public function get_ext_override_path() { return get_stylesheet_directory() . DIRECTORY_SEPARATOR . "woof" . DIRECTORY_SEPARATOR . "ext" . DIRECTORY_SEPARATOR . $this->html_type . DIRECTORY_SEPARATOR; } public function get_ext_link() { return plugin_dir_url(__FILE__); } public function woof_add_items_keys($keys) { $keys[] = $this->html_type; return $keys; } public function init() { } } WOOF_EXT::$includes['html_type_objects']['by_sku'] = new WOOF_EXT_BY_SKU();