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_Tax
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:  * Tax rate resource model
30:  *
31:  * @category    Mage
32:  * @package     Mage_Tax
33:  * @author      Magento Core Team <core@magentocommerce.com>
34:  */
35: class Mage_Tax_Model_Resource_Calculation_Rate extends Mage_Core_Model_Resource_Db_Abstract
36: {
37:     /**
38:      * Resource initialization
39:      */
40:     protected function _construct()
41:     {
42:         $this->_init('tax/tax_calculation_rate', 'tax_calculation_rate_id');
43:     }
44: 
45:     /**
46:      * Initialize unique fields
47:      *
48:      * @return Mage_Tax_Model_Resource_Calculation_Rate
49:      */
50:     protected function _initUniqueFields()
51:     {
52:         $this->_uniqueFields = array(array(
53:             'field' => array('code'),
54:             'title' => Mage::helper('tax')->__('Code'),
55:         ));
56:         return $this;
57:     }
58: 
59:     /**
60:      * Delete all rates
61:      *
62:      * @return Mage_Tax_Model_Resource_Calculation_Rate
63:      */
64:     public function deleteAllRates()
65:     {
66:         $this->_getWriteAdapter()->delete($this->getMainTable());
67:         return $this;
68:     }
69: 
70:     /**
71:      * Check if this rate exists in rule
72:      *
73:      * @param  int $rateId
74:      * @return array
75:      */
76:     public function isInRule($rateId)
77:     {
78:         $adapter = $this->_getReadAdapter();
79:         $select  = $adapter->select()
80:             ->from($this->getTable('tax/tax_calculation'), array('tax_calculation_rate_id'))
81:             ->where('tax_calculation_rate_id = ?', $rateId);
82:         return $adapter->fetchCol($select);
83:     }
84: }
85: