Same model number, different manufacturers/products

[farmex]

Got it working and picking product by its manufacturer and model.

So the last question I have is how can I define that if manufacturers_id=17 it also is "EXM"


Here's working extra cart action, if anybody would need it

<?php
/**
 * Custom shopping Cart actions
 *
 * @package initSystem
 * @copyright Copyright 2003-2011 Zen Cart Development Team
 * @license http://www.zen-cart.com/license/2_0.txt GNU Public License V2.0
 */
if (!defined('IS_ADMIN_FLAG')) {
  die('Illegal Access');
}

/**
 * check whether an "action" has been set. And if m= & aribrand= is set but no products_id is set,
 * then lookup products_id from products_model (m) and manufacturers_id (aribrand)
 */
if (isset($_GET['action']) && $_GET['action']=='buy_now' && isset($_GET['m']) && isset($_GET['aribrand']) && !isset($_GET['products_id']))
{
  $sql= "select products_id from " . TABLE_PRODUCTS . " where products_model = :themodel: && manufacturers_id = :brand: LIMIT 1";
  $sql = $db->bindvars($sql, ':themodel:', $_GET['m'], 'string');
  $sql = $db->bindvars($sql, ':brand:', $_GET['aribrand'], 'string');
  $lookup = $db->Execute($sql);
  if ($lookup->RecordCount() == 1)
  {
    $_GET['products_id'] = $lookup->fields['products_id'];
	unset($_GET['aribrand']);
	unset($_GET['m']);
	zen_redirect(zen_href_link($goto, zen_get_all_get_params('m')));
	zen_redirect(zen_href_link($goto, zen_get_all_get_params('aribrand')));
  }
}
?>

[farmex]

It was nice talking to myself, but I figured out last question I had

if ($_GET['aribrand'] == TO) {$_GET['aribrand'] = 4;}
if ($_GET['aribrand'] == EXM) {$_GET['aribrand'] = 17;}