From 400fa4a1b57367cbb6b6155ea3b2f1d9159621d3 Mon Sep 17 00:00:00 2001
From: Jean-Michel Vedrine <vedrine@vedrine.org>
Date: Sat, 7 Feb 2015 15:13:39 +0100
Subject: [PATCH] MDL-48965 mod_lesson: avoid short answer question without any
 answers

---
 mod/lesson/pagetypes/shortanswer.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/mod/lesson/pagetypes/shortanswer.php b/mod/lesson/pagetypes/shortanswer.php
index 798b1800441..dfcb8aec5af 100644
--- a/mod/lesson/pagetypes/shortanswer.php
+++ b/mod/lesson/pagetypes/shortanswer.php
@@ -337,7 +337,8 @@ class lesson_add_page_form_shortanswer extends lesson_add_page_form_base {
 
         for ($i = 0; $i < $this->_customdata['lesson']->maxanswers; $i++) {
             $this->_form->addElement('header', 'answertitle'.$i, get_string('answer').' '.($i+1));
-            $this->add_answer($i);
+            // Only first answer is required.
+            $this->add_answer($i, null, ($i < 1));
             $this->add_response($i);
             $this->add_jumpto($i, null, ($i == 0 ? LESSON_NEXTPAGE : LESSON_THISPAGE));
             $this->add_score($i, null, ($i===0)?1:0);