From 3b61d1ffa8767129ec8e38a1f4bfc13f3a10eac3 Mon Sep 17 00:00:00 2001
From: Mark Nelson <markn@moodle.com>
Date: Fri, 23 Jun 2017 13:00:25 +0800
Subject: [PATCH] #117 Do not process image if 'No image' selected

---
 element/image/classes/element.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/element/image/classes/element.php b/element/image/classes/element.php
index dd314d0..94f4b39 100644
--- a/element/image/classes/element.php
+++ b/element/image/classes/element.php
@@ -143,6 +143,10 @@ class element extends \mod_customcert\element {
      * @return string the json encoded array
      */
     public function save_unique_data($data) {
+        if (empty($data->fileid)) {
+            return;
+        }
+
         // Array of data we will be storing in the database.
         $fs = get_file_storage();
         $file = $fs->get_file_by_id($data->fileid);