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_Customer
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:  * Customer group resource model
30:  *
31:  * @category    Mage
32:  * @package     Mage_Customer
33:  * @author      Magento Core Team <core@magentocommerce.com>
34:  */
35: class Mage_Customer_Model_Resource_Group extends Mage_Core_Model_Resource_Db_Abstract
36: {
37:     /**
38:      * Resource initialization
39:      */
40:     protected function _construct()
41:     {
42:         $this->_init('customer/customer_group', 'customer_group_id');
43:     }
44: 
45:     /**
46:      * Initialize unique fields
47:      *
48:      * @return Mage_Customer_Model_Resource_Group
49:      */
50:     protected function _initUniqueFields()
51:     {
52:         $this->_uniqueFields = array(
53:             array(
54:                 'field' => 'customer_group_code',
55:                 'title' => Mage::helper('customer')->__('Customer Group')
56:             ));
57: 
58:         return $this;
59:     }
60: 
61:     /**
62:      * Check if group uses as default
63:      *
64:      * @param  Mage_Core_Model_Abstract $group
65:      * @throws Mage_Core_Exception
66:      * @return Mage_Core_Model_Resource_Db_Abstract
67:      */
68:     protected function _beforeDelete(Mage_Core_Model_Abstract $group)
69:     {
70:         if ($group->usesAsDefault()) {
71:             Mage::throwException(Mage::helper('customer')->__('The group "%s" cannot be deleted', $group->getCode()));
72:         }
73:         return parent::_beforeDelete($group);
74:     }
75: 
76:     /**
77:      * Method set default group id to the customers collection
78:      *
79:      * @param Mage_Core_Model_Abstract $group
80:      * @return Mage_Core_Model_Resource_Db_Abstract
81:      */
82:     protected function _afterDelete(Mage_Core_Model_Abstract $group)
83:     {
84:         $customerCollection = Mage::getResourceModel('customer/customer_collection')
85:             ->addAttributeToFilter('group_id', $group->getId())
86:             ->load();
87:         foreach ($customerCollection as $customer) {
88:             $defaultGroupId = Mage::helper('customer')->getDefaultCustomerGroupId($customer->getStoreId());
89:             $customer->setGroupId($defaultGroupId);
90:             $customer->save();
91:         }
92:         return parent::_afterDelete($group);
93:     }
94: }
95: