<?php
/**
 * Magento
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Open Software License (OSL 3.0)
 * that is bundled with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://opensource.org/licenses/osl-3.0.php
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@magentocommerce.com so we can send you a copy immediately.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade Magento to newer
 * versions in the future. If you wish to customize Magento for your
 * needs please refer to http://www.magentocommerce.com for more information.
 *
 * @category    Mage
 * @package     Mage_Customer
 * @copyright   Copyright (c) 2012 Magento Inc. (http://www.magentocommerce.com)
 * @license     http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 */


/**
 * Customer Address Postal/Zip Code Attribute Data Model
 * This Data Model Has to Be Set Up in additional EAV attribute table
 *
 * @category    Mage
 * @package     Mage_Customer
 * @author      Magento Core Team <core@magentocommerce.com>
 */
class Mage_Customer_Model_Attribute_Data_Postcode extends Mage_Eav_Model_Attribute_Data_Text
{
    /**
     * Validate postal/zip code
     * Return true and skip validation if country zip code is optional
     *
     * @param array|string $value
     * @return boolean|array
     */
    public function validateValue($value)
    {
        $countryId      = $this->getExtractedData('country_id');
        $optionalZip    = Mage::helper('directory')->getCountriesWithOptionalZip();
        if (!in_array($countryId, $optionalZip)) {
            return parent::validateValue($value);
        }
        return true;
    }
}