$displaylist = coursecat::make_categories_list('moodle/course:create');
if (!isset($displaylist[$course->category])) {
//always keep current
- $displaylist[$course->category] = coursecat::get($course->category)->get_formatted_name();
+ $displaylist[$course->category] = coursecat::get($course->category, MUST_EXIST, true)->get_formatted_name();
}
$mform->addElement('select', 'category', get_string('coursecategory'), $displaylist);
$mform->addHelpButton('category', 'coursecategory');