From a326066c97dd4d226f2bc72cdfc5410438704918 Mon Sep 17 00:00:00 2001
From: thomasmars <thomasmars87@gmail.com>
Date: Tue, 13 Dec 2016 11:36:28 +0100
Subject: [PATCH] Only set tutorial url if it exists.

HFP-348
---
 h5p.classes.php | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/h5p.classes.php b/h5p.classes.php
index 0d92330..b003a27 100644
--- a/h5p.classes.php
+++ b/h5p.classes.php
@@ -2423,7 +2423,9 @@ class H5PCore {
     // Handle libraries metadata
     if (isset($json->libraries)) {
       foreach ($json->libraries as $machineName => $libInfo) {
-        $this->h5pF->setLibraryTutorialUrl($machineName, $libInfo->tutorialUrl);
+        if (isset($libInfo->tutorialUrl)) {
+          $this->h5pF->setLibraryTutorialUrl($machineName, $libInfo->tutorialUrl);
+        }
       }
     }