From 89644a400d463c8cc17c090f64b1d0f83857ac85 Mon Sep 17 00:00:00 2001
From: Adrian Greeve <adrian@moodle.com>
Date: Wed, 20 Jul 2016 14:45:44 +0800
Subject: [PATCH] MDL-51735 mod_lesson: A lesson with no content shows a
 message.

Before it would show an error.
---
 mod/lesson/view.php | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/mod/lesson/view.php b/mod/lesson/view.php
index 94a426e944a..e7a66cd5590 100644
--- a/mod/lesson/view.php
+++ b/mod/lesson/view.php
@@ -286,7 +286,11 @@ if (empty($pageid)) {
     }
     // start at the first page
     if (!$pageid = $DB->get_field('lesson_pages', 'id', array('lessonid' => $lesson->id, 'prevpageid' => 0))) {
-            print_error('cannotfindfirstpage', 'lesson');
+        echo $lessonoutput->header($lesson, $cm, 'view', '', null);
+        // Lesson currently has no content. A message for display has been prepared and will be displayed by the header method
+        // of the lesson renderer.
+        echo $lessonoutput->footer();
+        exit();
     }
     /// This is the code for starting a timed test
     if(!isset($USER->startlesson[$lesson->id]) && !$canmanage) {
-- 
2.17.1