From 5ae1395acd984cf72850c2ee2a36bab3ef7ac5d0 Mon Sep 17 00:00:00 2001
From: Laurent Destailleur <eldy@destailleur.fr>
Date: Mon, 11 Jun 2018 14:22:01 +0200
Subject: [PATCH] Fix js when no data

---
 htdocs/core/class/dolgraph.class.php | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/htdocs/core/class/dolgraph.class.php b/htdocs/core/class/dolgraph.class.php
index 3ad22f87c03..f40d30f389e 100644
--- a/htdocs/core/class/dolgraph.class.php
+++ b/htdocs/core/class/dolgraph.class.php
@@ -880,10 +880,17 @@ class DolGraph
 		$this->stringtoshow.='<script id="'.$tag.'">'."\n";
 		$this->stringtoshow.='$(function () {'."\n";
 		$i=$firstlot;
-		while ($i < $nblot)
+		if ($nblot < 0)
 		{
-			$this->stringtoshow.=$serie[$i];
-			$i++;
+			$this->stringtoshow.='<!-- No series of data -->';
+		}
+		else
+		{
+			while ($i < $nblot)
+			{
+				$this->stringtoshow.=$serie[$i];
+				$i++;
+			}
 		}
 		$this->stringtoshow.="\n";