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_Admin
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:  * Acl model
30:  * 
31:  * @category   Mage
32:  * @package    Mage_Admin
33:  * @author      Magento Core Team <core@magentocommerce.com>
34:  */
35: class Mage_Admin_Model_Acl extends Zend_Acl
36: {
37:     /**
38:      * All the group roles are prepended by G
39:      *
40:      */
41:     const ROLE_TYPE_GROUP = 'G';
42:     
43:     /**
44:      * All the user roles are prepended by U
45:      *
46:      */
47:     const ROLE_TYPE_USER = 'U';
48:     
49:     /**
50:      * Permission level to deny access
51:      *
52:      */
53:     const RULE_PERM_DENY = 0;
54:     
55:     /**
56:      * Permission level to inheric access from parent role
57:      *
58:      */
59:     const RULE_PERM_INHERIT = 1;
60:     
61:     /**
62:      * Permission level to allow access
63:      *
64:      */
65:     const RULE_PERM_ALLOW = 2;
66:     
67:     /**
68:      * Get role registry object or create one
69:      *
70:      * @return Mage_Admin_Model_Acl_Role_Registry
71:      */
72:     protected function _getRoleRegistry()
73:     {
74:         if (null === $this->_roleRegistry) {
75:             $this->_roleRegistry = Mage::getModel('admin/acl_role_registry');
76:         }
77:         return $this->_roleRegistry;
78:     }
79:     
80:     /**
81:      * Add parent to role object
82:      *
83:      * @param Zend_Acl_Role $role
84:      * @param Zend_Acl_Role $parent
85:      * @return Mage_Admin_Model_Acl
86:      */
87:     public function addRoleParent($role, $parent)
88:     {
89:         $this->_getRoleRegistry()->addParent($role, $parent);
90:         return $this;
91:     }
92: }
93: