From 29d815799b20c01ed4defd038626fc769214aa77 Mon Sep 17 00:00:00 2001
From: Damyon Wiese <damyon@moodle.com>
Date: Fri, 3 Aug 2018 16:52:31 +0800
Subject: [PATCH] MDL-61650 assign: More consistent empty text

Consistently check for empty submissions with count_words(trim($text)).
---
 mod/assign/submission/onlinetext/locallib.php | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/mod/assign/submission/onlinetext/locallib.php b/mod/assign/submission/onlinetext/locallib.php
index 85ea4dc3314..0388172f644 100644
--- a/mod/assign/submission/onlinetext/locallib.php
+++ b/mod/assign/submission/onlinetext/locallib.php
@@ -575,8 +575,13 @@ class assign_submission_onlinetext extends assign_submission_plugin {
      */
     public function is_empty(stdClass $submission) {
         $onlinetextsubmission = $this->get_onlinetext_submission($submission->id);
+        $wordcount = 0;
 
-        return empty($onlinetextsubmission->onlinetext);
+        if (isset($onlinetextsubmission->onlinetext)) {
+            $wordcount = count_words(trim($onlinetextsubmission->onlinetext));
+        }
+
+        return $wordcount == 0;
     }
 
     /**
@@ -592,7 +597,13 @@ class assign_submission_onlinetext extends assign_submission_plugin {
         if (!isset($data->onlinetext_editor)) {
             return true;
         }
-        return !strlen((string)$data->onlinetext_editor['text']);
+        $wordcount = 0;
+
+        if (isset($data->onlinetext_editor['text'])) {
+            $wordcount = count_words(trim((string)$data->onlinetext_editor['text']));
+        }
+
+        return $wordcount == 0;
     }
 
     /**