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: class Mage_Eav_Model_Entity_Attribute_Backend_Datetime extends Mage_Eav_Model_Entity_Attribute_Backend_Abstract
28: {
29:     /**
30:      * Formating date value before save
31:      *
32:      * Should set (bool, string) correct type for empty value from html form,
33:      * neccessary for farther proccess, else date string
34:      *
35:      * @param Varien_Object $object
36:      * @throws Mage_Eav_Exception
37:      * @return Mage_Eav_Model_Entity_Attribute_Backend_Datetime
38:      */
39:     public function beforeSave($object)
40:     {
41:         $attributeName = $this->getAttribute()->getName();
42:         $_formated     = $object->getData($attributeName . '_is_formated');
43:         if (!$_formated && $object->hasData($attributeName)) {
44:             try {
45:                 $value = $this->formatDate($object->getData($attributeName));
46:             } catch (Exception $e) {
47:                 throw Mage::exception('Mage_Eav', Mage::helper('eav')->__('Invalid date'));
48:             }
49: 
50:             if (is_null($value)) {
51:                 $value = $object->getData($attributeName);
52:             }
53: 
54:             $object->setData($attributeName, $value);
55:             $object->setData($attributeName . '_is_formated', true);
56:         }
57: 
58:         return $this;
59:     }
60: 
61:     /**
62:      * Prepare date for save in DB
63:      *
64:      * string format used from input fields (all date input fields need apply locale settings)
65:      * int value can be declared in code (this meen whot we use valid date)
66:      *
67:      * @param   string | int $date
68:      * @return  string
69:      */
70:     public function formatDate($date)
71:     {
72:         if (empty($date)) {
73:             return null;
74:         }
75:         // unix timestamp given - simply instantiate date object
76:         if (preg_match('/^[0-9]+$/', $date)) {
77:             $date = new Zend_Date((int)$date);
78:         }
79:         // international format
80:         else if (preg_match('#^\d{4}-\d{2}-\d{2}( \d{2}:\d{2}:\d{2})?$#', $date)) {
81:             $zendDate = new Zend_Date();
82:             $date = $zendDate->setIso($date);
83:         }
84:         // parse this date in current locale, do not apply GMT offset
85:         else {
86:             $date = Mage::app()->getLocale()->date($date,
87:                Mage::app()->getLocale()->getDateFormat(Mage_Core_Model_Locale::FORMAT_TYPE_SHORT),
88:                null, false
89:             );
90:         }
91:         return $date->toString(Varien_Date::DATETIME_INTERNAL_FORMAT);
92:     }
93: }
94: