public static function getAllPublishedWelcartItems() {
        global $wpdb;

        $welitems = [];
        $itemt = usces_get_tablename('usces_item');
        $query = $wpdb->prepare(
            "SELECT posts.ID
            FROM $wpdb->posts AS posts
            JOIN $itemt AS itemt ON itemt.post_id = posts.ID
            WHERE post_status = %s",
            'publish'
        );
        $allitems = $wpdb->get_col($query);
        if (!empty($allitems)) {
            foreach ($allitems as $alli_post_id) {
                $welitem = self::getWelItemData($alli_post_id);
                if (!empty($welitem)) {
                    $welitems[] = $welitem;
                }
            }
        }

        return $welitems;
    }