From 0af8b60e39f350e76bfad654c047a42c741e95ab Mon Sep 17 00:00:00 2001
From: Ralf Becker <ralfbecker@outdoor-training.de>
Date: Mon, 7 Dec 2009 11:18:13 +0000
Subject: [PATCH] "Maximum number of titles to query from an application at
 once (to NOT trash mysql)"

---
 phpgwapi/inc/class.egw_link.inc.php | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/phpgwapi/inc/class.egw_link.inc.php b/phpgwapi/inc/class.egw_link.inc.php
index 5ce9d5f5d7..3771517f66 100644
--- a/phpgwapi/inc/class.egw_link.inc.php
+++ b/phpgwapi/inc/class.egw_link.inc.php
@@ -597,6 +597,11 @@ class egw_link extends solink
 		return $title;
 	}
 
+	/**
+	 * Maximum number of titles to query from an application at once (to NOT trash mysql)
+	 */
+	const MAX_TITLES_QUERY = 100;
+
 	/**
 	 * Query the titles off multiple id's of one app
 	 *
@@ -631,10 +636,13 @@ class egw_link extends solink
 		}
 		if ($ids_to_query)
 		{
-			foreach(ExecMethod(self::$app_register[$app]['titles'],$ids_to_query) as $id => $t)
+			for ($n = 0; $ids = array_slice($ids_to_query,$n*MAX_TITLES_QUERY,100); ++$n)
 			{
-				$title =& self::get_cache($app,$id);
-				$titles[$id] = $title = $t;
+				foreach(ExecMethod(self::$app_register[$app]['titles'],$ids) as $id => $t)
+				{
+					$title =& self::get_cache($app,$id);
+					$titles[$id] = $title = $t;
+				}
 			}
 		}
 		return $titles;