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_Core
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:  * Core config data resource model
30:  *
31:  * @category    Mage
32:  * @package     Mage_Core
33:  * @author      Magento Core Team <core@magentocommerce.com>
34:  */
35: class Mage_Core_Model_Resource_Config_Data extends Mage_Core_Model_Resource_Db_Abstract
36: {
37:     /**
38:      * Define main table
39:      *
40:      */
41:     protected function _construct()
42:     {
43:         $this->_init('core/config_data', 'config_id');
44:     }
45: 
46:     /**
47:      * Convert array to comma separated value
48:      *
49:      * @param Mage_Core_Model_Abstract $object
50:      * @return Mage_Core_Model_Resource_Config_Data
51:      */
52:     protected function _beforeSave(Mage_Core_Model_Abstract $object)
53:     {
54:         if (!$object->getId()) {
55:             $this->_checkUnique($object);
56:         }
57: 
58:         if (is_array($object->getValue())) {
59:             $object->setValue(join(',', $object->getValue()));
60:         }
61:         return parent::_beforeSave($object);
62:     }
63: 
64:     /**
65:      * Validate unique configuration data before save
66:      * Set id to object if exists configuration instead of throw exception
67:      *
68:      * @param Mage_Core_Model_Config_Data $object
69:      * @return Mage_Core_Model_Resource_Config_Data
70:      */
71:     protected function _checkUnique(Mage_Core_Model_Abstract $object)
72:     {
73:         $select = $this->_getReadAdapter()->select()
74:             ->from($this->getMainTable(), array($this->getIdFieldName()))
75:             ->where('scope = :scope')
76:             ->where('scope_id = :scope_id')
77:             ->where('path = :path');
78:         $bind   = array(
79:             'scope'     => $object->getScope(),
80:             'scope_id'  => $object->getScopeId(),
81:             'path'      => $object->getPath()
82:         );
83: 
84:         $configId = $this->_getReadAdapter()->fetchOne($select, $bind);
85:         if ($configId) {
86:             $object->setId($configId);
87:         }
88: 
89:         return $this;
90:     }
91: }
92: