1: <?php
 2: /**
 3:  * Magento
 4:  *
 5:  * NOTICE OF LICENSE
 6:  *
 7:  * This source file is subject to the Open Software License (OSL 3.0)
 8:  * that is bundled with this package in the file LICENSE.txt.
 9:  * It is also available through the world-wide-web at this URL:
10:  * http://opensource.org/licenses/osl-3.0.php
11:  * If you did not receive a copy of the license and are unable to
12:  * obtain it through the world-wide-web, please send an email
13:  * to license@magentocommerce.com so we can send you a copy immediately.
14:  *
15:  * DISCLAIMER
16:  *
17:  * Do not edit or add to this file if you wish to upgrade Magento to newer
18:  * versions in the future. If you wish to customize Magento for your
19:  * needs please refer to http://www.magentocommerce.com for more information.
20:  *
21:  * @category    Mage
22:  * @package     Mage_Rating
23:  * @copyright   Copyright (c) 2012 Magento Inc. (http://www.magentocommerce.com)
24:  * @license     http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
25:  */
26: 
27: 
28: /**
29:  * Rating Observer Model
30:  *
31:  * @category   Mage
32:  * @package    Mage_Rating
33:  * @author     Magento Core Team <core@magentocommerce.com>
34:  */
35: class Mage_Rating_Model_Observer
36: {
37:     /**
38:      * Cleanup product ratings after product delete
39:      *
40:      * @param   Varien_Event_Observer $observer
41:      * @return  Mage_CatalogIndex_Model_Observer
42:      */
43:     public function processProductAfterDeleteEvent(Varien_Event_Observer $observer)
44:     {
45:         $eventProduct = $observer->getEvent()->getProduct();
46:         if ($eventProduct && $eventProduct->getId()) {
47:             Mage::getResourceSingleton('rating/rating')->deleteAggregatedRatingsByProductId($eventProduct->getId());
48:         }
49:         return $this;
50:     }
51: }
52: