From 66fa589075751bb0dcd6618668c3d8bb4ea51277 Mon Sep 17 00:00:00 2001
From: "Leigh B. Stoller" <stoller@flux.utah.edu>
Date: Fri, 16 Feb 2007 22:02:01 +0000
Subject: [PATCH] Catch case when there are no nodes in the testbed, as when
 setting up a new testbed.

---
 www/currentusage.php3 | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/www/currentusage.php3 b/www/currentusage.php3
index 6bbe8dde7..2f4285830 100644
--- a/www/currentusage.php3
+++ b/www/currentusage.php3
@@ -1,7 +1,7 @@
 <?php
 #
 # EMULAB-COPYRIGHT
-# Copyright (c) 2000-2006 University of Utah and the Flux Group.
+# Copyright (c) 2000-2007 University of Utah and the Flux Group.
 # All rights reserved.
 #
 require("defs.php3");
@@ -88,6 +88,8 @@ function SHOWSTATS()
 #
 function SHOWFREENODES()
 {
+    $freecounts = array();
+    
     # Get typelist and set freecounts to zero.
     $query_result =
 	DBQueryFatal("select n.type from nodes as n ".
@@ -97,7 +99,11 @@ function SHOWFREENODES()
 	$type              = $row[0];
 	$freecounts[$type] = 0;
     }
-    
+
+    if (!count($freecounts)) {
+	return "";
+    }
+	
     # Get free totals by type.
     $query_result =
 	DBQueryFatal("select n.eventstate,n.type,count(*) from nodes as n ".
@@ -119,7 +125,7 @@ function SHOWFREENODES()
 	}
     }
     $output = "";
-	
+
     $freepcs   = TBFreePCs();
     $reloading = TBReloadingPCs();
 
-- 
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