From 1cf15ef4a5a7e09247b9dfa7e9931ddbe25660a4 Mon Sep 17 00:00:00 2001
From: Thomas Bruederli <thomas@roundcube.net>
Date: Fri, 1 Feb 2013 15:18:12 +0100
Subject: Make rcube_result_set implement the PHP iterator interface

---
 program/lib/Roundcube/rcube_result_set.php | 47 ++++++++++++++++++++++--------
 1 file changed, 35 insertions(+), 12 deletions(-)

(limited to 'program/lib')

diff --git a/program/lib/Roundcube/rcube_result_set.php b/program/lib/Roundcube/rcube_result_set.php
index 1391e5e4b..a4b070e28 100644
--- a/program/lib/Roundcube/rcube_result_set.php
+++ b/program/lib/Roundcube/rcube_result_set.php
@@ -3,7 +3,7 @@
 /*
  +-----------------------------------------------------------------------+
  | This file is part of the Roundcube Webmail client                     |
- | Copyright (C) 2006-2011, The Roundcube Dev Team                       |
+ | Copyright (C) 2006-2013, The Roundcube Dev Team                       |
  |                                                                       |
  | Licensed under the GNU General Public License version 3 or            |
  | any later version with exceptions for skins & plugins.                |
@@ -17,20 +17,22 @@
 */
 
 /**
- * Roundcube result set class.
+ * Roundcube result set class
+ *
  * Representing an address directory result set.
+ * Implenets Iterator and thus be used in foreach() loops.
  *
  * @package    Framework
  * @subpackage Addressbook
  */
-class rcube_result_set
+class rcube_result_set implements Iterator
 {
-    var $count = 0;
-    var $first = 0;
-    var $current = 0;
-    var $searchonly = false;
-    var $records = array();
+    public $count = 0;
+    public $first = 0;
+    public $searchonly = false;
+    public $records = array();
 
+    private $current = 0;
 
     function __construct($c=0, $f=0)
     {
@@ -51,18 +53,39 @@ class rcube_result_set
     function first()
     {
         $this->current = 0;
-        return $this->records[$this->current++];
+        return $this->records[$this->current];
+    }
+
+    function seek($i)
+    {
+        $this->current = $i;
+    }
+
+    /***  PHP 5 Iterator interface  ***/
+
+    function rewind()
+    {
+        $this->current = 0;
+    }
+
+    function current()
+    {
+        return $this->records[$this->current];
+    }
+
+    function key()
+    {
+        return $this->current;
     }
 
-    // alias for iterate()
     function next()
     {
         return $this->iterate();
     }
 
-    function seek($i)
+    function valid()
     {
-        $this->current = $i;
+        return isset($this->records[$this->current]);
     }
 
 }
-- 
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