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_Reports
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:  * Reports data helper
29:  */
30: class Mage_Reports_Helper_Data extends Mage_Core_Helper_Abstract
31: {
32:     const REPORT_PERIOD_TYPE_DAY    = 'day';
33:     const REPORT_PERIOD_TYPE_MONTH  = 'month';
34:     const REPORT_PERIOD_TYPE_YEAR   = 'year';
35:     /**
36:      * Retrieve array of intervals
37:      *
38:      * @param string $from
39:      * @param string $to
40:      * @param string $period
41:      * @return array
42:      */
43:     public function getIntervals($from, $to, $period = self::REPORT_PERIOD_TYPE_DAY)
44:     {
45:         $intervals = array();
46:         if (!$from && !$to){
47:             return $intervals;
48:         }
49: 
50:         $start = new Zend_Date($from, Varien_Date::DATE_INTERNAL_FORMAT);
51: 
52:         if ($period == self::REPORT_PERIOD_TYPE_DAY) {
53:             $dateStart = $start;
54:         }
55: 
56:         if ($period == self::REPORT_PERIOD_TYPE_MONTH) {
57:             $dateStart = new Zend_Date(date("Y-m", $start->getTimestamp()), Varien_Date::DATE_INTERNAL_FORMAT);
58:         }
59: 
60:         if ($period == self::REPORT_PERIOD_TYPE_YEAR) {
61:             $dateStart = new Zend_Date(date("Y", $start->getTimestamp()), Varien_Date::DATE_INTERNAL_FORMAT);
62:         }
63: 
64:         $dateEnd = new Zend_Date($to, Varien_Date::DATE_INTERNAL_FORMAT);
65: 
66:         while ($dateStart->compare($dateEnd) <= 0) {
67:             switch ($period) {
68:                 case self::REPORT_PERIOD_TYPE_DAY :
69:                     $t = $dateStart->toString('yyyy-MM-dd');
70:                     $dateStart->addDay(1);
71:                     break;
72:                 case self::REPORT_PERIOD_TYPE_MONTH:
73:                     $t = $dateStart->toString('yyyy-MM');
74:                     $dateStart->addMonth(1);
75:                     break;
76:                 case self::REPORT_PERIOD_TYPE_YEAR:
77:                     $t = $dateStart->toString('yyyy');
78:                     $dateStart->addYear(1);
79:                     break;
80:             }
81:             $intervals[] = $t;
82:         }
83:         return  $intervals;
84:     }
85: 
86:     public function prepareIntervalsCollection($collection, $from, $to, $periodType = self::REPORT_PERIOD_TYPE_DAY)
87:     {
88:         $intervals = $this->getIntervals($from, $to, $periodType);
89: 
90:         foreach ($intervals as $interval) {
91:             $item = Mage::getModel('adminhtml/report_item');
92:             $item->setPeriod($interval);
93:             $item->setIsEmpty();
94:             $collection->addItem($item);
95:         }
96:     }
97: }
98: 
99: