lib/Varien/Filter/Object.php

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<?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   Varien
 * @package    Varien_Filter
 * @copyright  Copyright (c) 2008 Irubin Consulting Inc. DBA Varien (http://www.varien.com)
 * @license    http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 */


class Varien_Filter_Object extends Zend_Filter
{
    protected $_columnFilters = array();
    
    function addFilter(Zend_Filter_Interface $filter, $column='')
    {
        if (''===$column) {
            parent::addFilter($filter);
        } else {
            if (!isset($this->_columnFilters[$column])) {
                $this->_columnFilters[$column] = new Zend_Filter();
            }
            $this->_columnFilters[$column]->addFilter($filter);
        }
    }
    
    function filter($object)
    {
        if (!$object instanceof Varien_Object) {
            throw new Exception('Expecting an instance of Varien_Object');
        }
        $class = get_class($object);
        $out = new $class;
        foreach ($object->getData() as $column=>$value) {
            $value = parent::filter($value);
            if (isset($this->_columnFilters[$column])) {
                $value = $this->_columnFilters[$column]->filter($value);
            }
            $out->setData($column, $value);
        }
        return $out;
    }
}

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