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:  * "Serialized" attribute backend
29:  */
30: class Mage_Eav_Model_Entity_Attribute_Backend_Serialized extends Mage_Eav_Model_Entity_Attribute_Backend_Abstract
31: {
32:     /**
33:      * Serialize before saving
34:      *
35:      * @param Varien_Object $object
36:      * @return Mage_Eav_Model_Entity_Attribute_Backend_Serialized
37:      */
38:     public function beforeSave($object)
39:     {
40:         // parent::beforeSave() is not called intentionally
41:         $attrCode = $this->getAttribute()->getAttributeCode();
42:         if ($object->hasData($attrCode)) {
43:             $object->setData($attrCode, serialize($object->getData($attrCode)));
44:         }
45: 
46:         return $this;
47:     }
48: 
49:     /**
50:      * Unserialize after saving
51:      *
52:      * @param Varien_Object $object
53:      * @return Mage_Eav_Model_Entity_Attribute_Backend_Serialized
54:      */
55:     public function afterSave($object)
56:     {
57:         parent::afterSave($object);
58:         $this->_unserialize($object);
59:         return $this;
60:     }
61: 
62:     /**
63:      * Unserialize after loading
64:      *
65:      * @param Varien_Object $object
66:      * @return Mage_Eav_Model_Entity_Attribute_Backend_Serialized
67:      */
68:     public function afterLoad($object)
69:     {
70:         parent::afterLoad($object);
71:         $this->_unserialize($object);
72:         return $this;
73:     }
74: 
75:     /**
76:      * Try to unserialize the attribute value
77:      *
78:      * @param Varien_Object $object
79:      * @return Mage_Eav_Model_Entity_Attribute_Backend_Serialized
80:      */
81:     protected function _unserialize(Varien_Object $object)
82:     {
83:         $attrCode = $this->getAttribute()->getAttributeCode();
84:         if ($object->getData($attrCode)) {
85:             try {
86:                 $unserialized = unserialize($object->getData($attrCode));
87:                 $object->setData($attrCode, $unserialized);
88:             } catch (Exception $e) {
89:                 $object->unsetData($attrCode);
90:             }
91:         }
92: 
93:         return $this;
94:     }
95: }
96: