MDL-57342 admin: confightml will check if returned data is empty

2019-07-23 13:31:58 +08:00
parent e222b1ed8d
commit f4da3acc61
3 changed files with 26 additions and 1 deletions
@@ -2574,6 +2574,19 @@ class admin_setting_confightmleditor extends admin_setting_configtextarea {
        $editor->use_editor($this->get_id(), array('noclean'=>true));
        return parent::output_html($data, $query);
    }
+
+    /**
+     * Checks if data has empty html.
+     *
+     * @param string $data
+     * @return string Empty when no errors.
+     */
+    public function write_setting($data) {
+        if (trim(html_to_text($data)) === '') {
+            $data = '';
+        }
+        return parent::write_setting($data);
+    }
 }