00001 <?php 00002 /** 00003 * Magento 00004 * 00005 * NOTICE OF LICENSE 00006 * 00007 * This source file is subject to the Open Software License (OSL 3.0) 00008 * that is bundled with this package in the file LICENSE.txt. 00009 * It is also available through the world-wide-web at this URL: 00010 * http://opensource.org/licenses/osl-3.0.php 00011 * If you did not receive a copy of the license and are unable to 00012 * obtain it through the world-wide-web, please send an email 00013 * to license@magentocommerce.com so we can send you a copy immediately. 00014 * 00015 * DISCLAIMER 00016 * 00017 * Do not edit or add to this file if you wish to upgrade Magento to newer 00018 * versions in the future. If you wish to customize Magento for your 00019 * needs please refer to http://www.magentocommerce.com for more information. 00020 * 00021 * @category Mage 00022 * @package Mage_Adminhtml 00023 * @copyright Copyright (c) 2008 Irubin Consulting Inc. DBA Varien (http://www.varien.com) 00024 * @license http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0) 00025 */ 00026 00027 /** 00028 * Backend for serialized array data 00029 * 00030 */ 00031 class Mage_Adminhtml_Model_System_Config_Backend_Serialized_Array extends Mage_Adminhtml_Model_System_Config_Backend_Serialized 00032 { 00033 /** 00034 * Unset array element with '__empty' key 00035 * 00036 */ 00037 protected function _beforeSave() 00038 { 00039 $value = $this->getValue(); 00040 if (is_array($value)) { 00041 unset($value['__empty']); 00042 } 00043 $this->setValue($value); 00044 parent::_beforeSave(); 00045 } 00046 }