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_Catalog
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: * Catalog product SKU backend attribute model
30: *
31: * @category Mage
32: * @package Mage_Catalog
33: * @author Magento Core Team <core@magentocommerce.com>
34: */
35: class Mage_Catalog_Model_Product_Attribute_Backend_Sku extends Mage_Eav_Model_Entity_Attribute_Backend_Abstract
36: {
37: /**
38: * Maximum SKU string length
39: *
40: * @var string
41: */
42: const SKU_MAX_LENGTH = 64;
43:
44: /**
45: * Validate SKU
46: *
47: * @param Mage_Catalog_Model_Product $object
48: * @throws Mage_Core_Exception
49: * @return bool
50: */
51: public function validate($object)
52: {
53: $helper = Mage::helper('core/string');
54:
55: if ($helper->strlen($object->getSku()) > self::SKU_MAX_LENGTH) {
56: Mage::throwException(
57: Mage::helper('catalog')->__('SKU length should be %s characters maximum.', self::SKU_MAX_LENGTH)
58: );
59: }
60: return parent::validate($object);
61: }
62: }
63: