Temporary Fix for VisionCart "vcGetProductCustomField" Snippet. The changes to this snippet have been logged in big tracker

vcGetProductCustomField-rc4Fix

<?php
/**
 * @package visioncart
 */

$vc =& $modx->visioncart;

# !!! FIXED: Fixed statement to be !isset rather then isset 
#####################################################
if (!isset($scriptProperties['id']) || !is_numeric($scriptProperties['id'])) {
	return '';
}

$product = $vc->getProduct($scriptProperties['id']);

if ($product == null) {
	return '';
}

$link = $product->getOne('ProductCategory');

$product = $product->toArray();

# !!! FIXED: Without this $link will never resolve bellow
#########################################################
$link    = $link->toArray();

if ($product['customfields'] != '' && is_array($product['customfields'])) {
	if (isset($product['customfields'][$link['categoryid']][$field])) {
		return $product['customfields'][$link['categoryid']][$field];
	}
}

return '';