<?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_Adminhtml
 * @copyright   Copyright (c) 2010 Magento Inc. (http://www.magentocommerce.com)
 * @license     http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 */

/**
 * Adminhtml newsletter subscribers grid website filter
 *
 * @category   Mage
 * @package    Mage_Adminhtml
 * @author      Magento Core Team <core@magentocommerce.com>
 */
class Mage_Adminhtml_Block_Newsletter_Subscriber_Grid_Filter_Website extends Mage_Adminhtml_Block_Widget_Grid_Column_Filter_Select
{

    protected $_websiteCollection = null;

    protected function _getOptions()
    {
        $result = $this->getCollection()->toOptionArray();
        array_unshift($result, array('label'=>null, 'value'=>null));
        return $result;
    }

    public function getCollection()
    {
        if(is_null($this->_websiteCollection)) {
            $this->_websiteCollection = Mage::getResourceModel('core/website_collection')
                ->load();
        }

        Mage::register('website_collection', $this->_websiteCollection);

        return $this->_websiteCollection;
    }

    public function getCondition()
    {

        $id = $this->getValue();
        if(!$id) {
            return null;
        }

        $website = Mage::app()->getWebsite($id);

        return array('in'=>$website->getStoresIds(true));
    }

}
