From 11d7365a15bb8c8cb856bf0d545a0b550f3dbe26 Mon Sep 17 00:00:00 2001
From: Brion Vibber <brion@status.net>
Date: Mon, 4 Jan 2010 10:39:11 -0800
Subject: [PATCH] Don't spew notices when building tag cloud if there is no
 popularity sum to divide by.

---
 actions/publictagcloud.php | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/actions/publictagcloud.php b/actions/publictagcloud.php
index e7f6ee36c7..5c70740290 100644
--- a/actions/publictagcloud.php
+++ b/actions/publictagcloud.php
@@ -136,7 +136,12 @@ class PublictagcloudAction extends Action
             $this->elementStart('dd');
             $this->elementStart('ul', 'tags xoxo tag-cloud');
             foreach ($tw as $tag => $weight) {
-                $this->showTag($tag, $weight, $weight/$sum);
+                if ($sum) {
+                    $weightedSum = $weight/$sum;
+                } else {
+                    $weightedSum = 1;
+                }
+                $this->showTag($tag, $weight, $weightedSum);
             }
             $this->elementEnd('ul');
             $this->elementEnd('dd');