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_Eav
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:  * Backend model for attribute with multiple values
29:  *
30:  * @category   Mage
31:  * @package    Mage_Eav
32:  * @author      Magento Core Team <core@magentocommerce.com>
33:  */
34: class Mage_Eav_Model_Entity_Attribute_Backend_Array extends Mage_Eav_Model_Entity_Attribute_Backend_Abstract
35: {
36:     /**
37:      * Prepare data for save
38:      *
39:      * @param Varien_Object $object
40:      * @return Mage_Eav_Model_Entity_Attribute_Backend_Abstract
41:      */
42:     public function beforeSave($object)
43:     {
44:         $attributeCode = $this->getAttribute()->getAttributeCode();
45:         $data = $object->getData($attributeCode);
46:         if (is_array($data)) {
47:             $data = array_filter($data);
48:             $object->setData($attributeCode, implode(',', $data));
49:         }
50: 
51:         return parent::beforeSave($object);
52:     }
53: }
54: