MDL-19756 better broken param diag

2009-07-27 15:14:49 +00:00
parent da65c538cd
commit 5db2b5951f
1 changed files with 1 additions and 1 deletions
@@ -2435,7 +2435,7 @@ class moodle_core_renderer extends moodle_renderer_base {
     * @return string HTML fragment
     */
    public function button($form) {
-        if (empty($form->button)) {
+        if (empty($form->button) or !($form->button instanceof html_button)) {
            throw new coding_exception('$OUTPUT->button($form) requires $form to have a button (html_button) value');
        }