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_CatalogInventory
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: * Minimum product qty backend model
29: *
30: * @category Mage
31: * @package Mage_CatalogInventory
32: * @author Magento Core Team <core@magentocommerce.com>
33: */
34: class Mage_CatalogInventory_Model_System_Config_Backend_Minqty extends Mage_Core_Model_Config_Data
35: {
36: /**
37: * Validate minimum product qty value
38: *
39: * @return Mage_CatalogInventory_Model_System_Config_Backend_Minqty
40: */
41: protected function _beforeSave()
42: {
43: parent::_beforeSave();
44: $minQty = (int)$this->getValue() >= 0 ? (int)$this->getValue() : (int)$this->getOldValue();
45: $this->setValue((string) $minQty);
46: return $this;
47: }
48: }
49: