$values['status'] = $course_request_info['status'];
$values['info'] = $course_request_info['info'];
$values['exemplary_content'] = $course_request_info['exemplary_content'];
$form->setDefaults($values);
// Validate the form and perform the ordered actions.
if ($form->validate()) {
$course_request_values = $form->getSubmitValues();
// Detection which submit button has been pressed.
$submit_button = isset($_POST['save_button']) ? 'save_button' : (isset($_POST['accept_button']) ? 'accept_button' : (isset($_POST['reject_button']) ? 'reject_button' : (isset($_POST['ask_info_button']) ? 'ask_info_button' : 'submit_button')));
// Check the course code for avoiding duplication.
$course_code_ok = $course_request_values['wanted_code'] == $course_request_info['code'] ? true : !CourseRequestManager::course_code_exists($course_request_values['wanted_code']);
if ($course_code_ok) {
$message = array();
$is_error_message = false;
// Update the course request.
$update_ok = CourseRequestManager::update_course_request($id, $course_request_values['wanted_code'], $course_request_values['title'], $course_request_values['description'], $course_request_values['category_code'], $course_request_values['course_language'], $course_request_values['objetives'], $course_request_values['target_audience'], $course_request_values['user_id'], $course_request_values['exemplary_content']);
if ($update_ok) {
$message[] = sprintf(get_lang('CourseRequestUpdated'), $course_request_values['wanted_code']);
switch ($submit_button) {
case 'accept_button':
if (CourseRequestManager::accept_course_request($id)) {
$message[] = sprintf(get_lang('CourseRequestAccepted'), $course_request_values['wanted_code'], $course_request_values['wanted_code']);
} else {
$message[] = sprintf(get_lang('CourseRequestAcceptanceFailed'), $course_request_values['wanted_code']);
$is_error_message = true;
}
break;
case 'reject_button':
if (CourseRequestManager::reject_course_request($id)) {
$message[] = sprintf(get_lang('CourseRequestRejected'), $course_request_values['wanted_code']);
} else {
