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MDL-19756 better broken param diag

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This commit is contained in:
skodak 2009-07-27 15:14:49 +00:00
parent da65c538cd
commit 5db2b5951f
1 changed files with 1 additions and 1 deletions

2
lib/outputlib.php

@ -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');
}