<?php
/**
 * Magento
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Open Software License (OSL 3.0)
 * that is bundled with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://opensource.org/licenses/osl-3.0.php
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@magentocommerce.com so we can send you a copy immediately.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade Magento to newer
 * versions in the future. If you wish to customize Magento for your
 * needs please refer to http://www.magentocommerce.com for more information.
 *
 * @category    Mage
 * @package     Mage_Tax
 * @copyright   Copyright (c) 2012 Magento Inc. (http://www.magentocommerce.com)
 * @license     http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 */


/**
 * Sales order tax resource model
 *
 * @category    Mage
 * @package     Mage_Tax
 * @author      Magento Core Team <core@magentocommerce.com>
 */
class Mage_Tax_Model_Resource_Sales_Order_Tax_Item extends Mage_Core_Model_Resource_Db_Abstract
{
    /**
     * Resource initialization
     */
    protected function _construct()
    {
        $this->_init('tax/sales_order_tax_item', 'tax_item_id');
    }

    /**
     * Get Tax Items with order tax information
     *
     * @param int $item_id
     * @return array
     */
    public function getTaxItemsByItemId($item_id)
    {
        $adapter = $this->_getReadAdapter();
        $select = $adapter->select()
            ->from(array('item' => $this->getTable('tax/sales_order_tax_item')), array('tax_id', 'tax_percent'))
            ->join(
                array('tax' => $this->getTable('tax/sales_order_tax')),
                'item.tax_id = tax.tax_id',
                array('title', 'percent', 'base_amount')
            )
            ->where('item_id = ?', $item_id);

        return $adapter->fetchAll($select);
    }
}