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_Checkout
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:  * Resource model for Checkout Cart
30:  *
31:  * @category    Mage
32:  * @package     Mage_Checkout
33:  * @author      Magento Core Team <core@magentocommerce.com>
34:  */
35: class Mage_Checkout_Model_Resource_Cart extends Mage_Core_Model_Resource_Db_Abstract
36: {
37:     /**
38:      * Model initialization
39:      *
40:      */
41:     protected function _construct()
42:     {
43:         $this->_init('sales/quote', 'entity_id');
44:     }
45: 
46:     /**
47:      * Fetch items summary
48:      *
49:      * @param int $quoteId
50:      * @return array
51:      */
52:     public function fetchItemsSummary($quoteId)
53:     {
54:         $read = $this->_getReadAdapter();
55:         $select = $read->select()
56:             ->from(array('q'=>$this->getTable('sales/quote')), array('items_qty', 'items_count'))
57:             ->where('q.entity_id = :quote_id');
58: 
59:         $result = $read->fetchRow($select, array(':quote_id' => $quoteId));
60:         return $result ? $result : array('items_qty'=>0, 'items_count'=>0);
61:     }
62: 
63:     /**
64:      * Fetch items
65:      *
66:      * @param int $quoteId
67:      * @return array
68:      */
69:     public function fetchItems($quoteId)
70:     {
71:         $read = $this->_getReadAdapter();
72:         $select = $read->select()
73:             ->from(array('qi'=>$this->getTable('sales/quote_item')),
74:                 array('id'=>'item_id', 'product_id', 'super_product_id', 'qty', 'created_at'))
75:             ->where('qi.quote_id = :quote_id');
76: 
77:         return $read->fetchAll($select, array(':quote_id' => $quoteId));
78:     }
79: 
80:     /**
81:      * Make collection not to load products that are in specified quote
82:      *
83:      * @param Mage_Catalog_Model_Resource_Product_Collection $collection
84:      * @param int $quoteId
85:      * @return Mage_Checkout_Model_Resource_Cart
86:      */
87:     public function addExcludeProductFilter($collection, $quoteId)
88:     {
89:         $adapter = $this->_getReadAdapter();
90:         $exclusionSelect = $adapter->select()
91:             ->from($this->getTable('sales/quote_item'), array('product_id'))
92:             ->where('quote_id = ?', $quoteId);
93:         $condition = $adapter->prepareSqlCondition('e.entity_id', array('nin' => $exclusionSelect));
94:         $collection->getSelect()->where($condition);
95:         return $this;
96:     }
97: }
98: