From 02ee7f3721445a8e5535ec79f3eb30a98e2908d2 Mon Sep 17 00:00:00 2001
From: robertall <robertall>
Date: Tue, 27 May 2008 07:43:14 +0000
Subject: [PATCH] [MDL-14788] Don't store empty number fields as 0

---
 mod/data/field/number/field.class.php | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/mod/data/field/number/field.class.php b/mod/data/field/number/field.class.php
index 073a091ad6b68..fa3bc07a9a42a 100755
--- a/mod/data/field/number/field.class.php
+++ b/mod/data/field/number/field.class.php
@@ -34,7 +34,12 @@ function update_content($recordid, $value, $name='') {
         $content = new object;
         $content->fieldid = $this->field->id;
         $content->recordid = $recordid;
-        $content->content = (float)$value;
+        $value = trim($value);
+        if (strlen($value) > 0) {
+            $content->content = floatval($value);
+        } else {
+            $content->content = null;
+        }
 
         if ($oldcontent = get_record('data_content','fieldid', $this->field->id, 'recordid', $recordid)) {
             $content->id = $oldcontent->id;