From 93943f65706dd2d1985fd9ef13ebca13c145b115 Mon Sep 17 00:00:00 2001
From: michaelpenne <michaelpenne>
Date: Tue, 29 Mar 2005 22:04:06 +0000
Subject: [PATCH] on line 1030, there was a division by zero when a student has
 not viewed any pages.  Now it checks to makes sure $nviewed != 0. This is for
 the ongoing score feature.

---
 mod/lesson/locallib.php | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/mod/lesson/locallib.php b/mod/lesson/locallib.php
index de4f0a65e2c..3cb74e3ada4 100644
--- a/mod/lesson/locallib.php
+++ b/mod/lesson/locallib.php
@@ -1027,7 +1027,12 @@ function lesson_calculate_ongoing_score($lesson, $userid, $retries, $return=fals
             }
         }
         $nviewed = count($temp); // this counts number of Questions the user viewed
-        $thegrade = intval(100 * $ncorrect / $nviewed);
+		if ($nviewed != 0) {
+			$thegrade = intval(100 * $ncorrect / $nviewed);	
+		} else {
+			$thegrade = 0;
+		}
+        
 
         if ($return) {
             return $thegrade;