1: <?php
  2: /**
  3:  * A helper class to determine an LDAP changeset.
  4:  *
  5:  * PHP version 5
  6:  *
  7:  * @category Kolab
  8:  * @package  Kolab_Server
  9:  * @author   Gunnar Wrobel <wrobel@pardus.de>
 10:  * @license  http://www.horde.org/licenses/lgpl21 LGPL 2.1
 11:  * @link     http://pear.horde.org/index.php?package=Kolab_Server
 12:  */
 13: 
 14: /**
 15:  * A helper class to determine an LDAP changeset.
 16:  *
 17:  * Copyright 2008-2012 Horde LLC (http://www.horde.org/)
 18:  *
 19:  * See the enclosed file COPYING for license information (LGPL). If you
 20:  * did not receive this file, see http://www.horde.org/licenses/lgpl21.
 21:  *
 22:  * @category Kolab
 23:  * @package  Kolab_Server
 24:  * @author   Gunnar Wrobel <wrobel@pardus.de>
 25:  * @license  http://www.horde.org/licenses/lgpl21 LGPL 2.1
 26:  * @link     http://pear.horde.org/index.php?package=Kolab_Server
 27:  */
 28: class Horde_Kolab_Server_Ldap_Changes
 29: {
 30:     /**
 31:      * The object to be modified.
 32:      *
 33:      * @var Horde_Kolab_Server_Object
 34:      */
 35:     private $_object;
 36: 
 37:     /**
 38:      * The new dataset.
 39:      *
 40:      * @var array
 41:      */
 42:     private $_data;
 43: 
 44:     /**
 45:      * Constructor.
 46:      *
 47:      * @param Horde_Kolab_Server_Object $object The object to be modified.
 48:      * @param array                     $data   The attributes of the object
 49:      *                                          to be stored.
 50:      */
 51:     public function __construct(
 52:         Horde_Kolab_Server_Object_Interface $object,
 53:         array $data
 54:     ) {
 55:         $this->_object = $object;
 56:         $this->_data   = $data;
 57:     }
 58: 
 59:     /**
 60:      * Return an LDAP changeset from the difference between the current object
 61:      * data and the new dataset.
 62:      *
 63:      * @return array The LDAP changeset.
 64:      */
 65:     public function getChangeset()
 66:     {
 67:         $cs         = array();
 68:         $old        = $this->_object->readInternal();
 69:         $new        = $this->_data;
 70:         $attributes = array_merge(array_keys($old), array_keys($new));
 71:         foreach ($attributes as $attribute) {
 72:             if (!isset($old[$attribute])) {
 73:                 $cs['add'][$attribute] = $new[$attribute];
 74:                 continue;
 75:             }
 76:             if (!isset($new[$attribute])) {
 77:                 $cs['delete'][] = $attribute;
 78:                 continue;
 79:             }
 80:             if (count($new[$attribute]) == 1
 81:                 && count($old[$attribute]) == 1
 82:             ) {
 83:                 if ($new[$attribute][0] == $old[$attribute][0]) {
 84:                     continue;
 85:                 } else {
 86:                     $cs['replace'][$attribute] = $new[$attribute][0];
 87:                     continue;
 88:                 }
 89:             }
 90:             $adds = array_diff($new[$attribute], $old[$attribute]);
 91:             if (!empty($adds)) {
 92:                 $cs['add'][$attribute] = array_values($adds);
 93:             }
 94:             $deletes = array_diff($old[$attribute], $new[$attribute]);
 95:             if (!empty($deletes)) {
 96:                 $cs['delete'][$attribute] = array_values($deletes);
 97:             }
 98:         }
 99:         return $cs;
100:     }
101: }