From f661248b5a85a39a1dff5b99c71c40b24a23b591 Mon Sep 17 00:00:00 2001
From: Paal Joergensen <pal.jorgensen@gmail.com>
Date: Tue, 23 Oct 2018 13:15:55 +0200
Subject: [PATCH] HFP-2329 Skip emty metadata fields for h5p.json

---
 h5p.classes.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/h5p.classes.php b/h5p.classes.php
index 4e53fa3..b0099bc 100644
--- a/h5p.classes.php
+++ b/h5p.classes.php
@@ -1647,7 +1647,7 @@ Class H5PExport {
     );
 
     foreach(array('authors', 'source', 'license', 'licenseVersion', 'licenseExtras' ,'yearFrom', 'yearTo', 'changes', 'authorComments') as $field) {
-      if (isset($content['metadata'][$field])) {
+      if (isset($content['metadata'][$field]) && $content['metadata'][$field] !== '') {
         if (($field !== 'authors' && $field !== 'changes') || (count($content['metadata'][$field]) > 0)) {
           $h5pJson[$field] = json_decode(json_encode($content['metadata'][$field], TRUE));
         }