$course->publishername = $fromform->publishername;
$course->publisheremail = $fromform->publisheremail;
$course->creatorname = $fromform->creatorname;
$course->contributornames = $fromform->contributornames;
$course->coverage = $fromform->coverage;
$course->licenceshortname = $fromform->licence;
$course->subject = $fromform->subject;
$course->audience = $fromform->audience;
$course->educationallevel = $fromform->educationallevel;
$course->creatornotes = $fromform->creatornotes['text'];
$course->creatornotesformat = $fromform->creatornotes['format'];
$course->privacy = empty($fromform->visible) ? 0 : $fromform->visible;
//delete screenshots that are not needed anymore
for ($screenshotnumber = 1; $screenshotnumber <= $course->screenshots; $screenshotnumber++) {
if (!isset($fromform->{'screenshot_' . $screenshotnumber})) {
if ($hub->screenshot_exists($course->id, $screenshotnumber)) {
$hub->delete_screenshot($course->id, $screenshotnumber);
}
}
}
//sanitize course screenshots
$screenshottotal = $hub->sanitize_screenshots($course->id);
//save the new screenshots and update the course screenshots value
if (!empty($fromform->addscreenshots)) {
$screenshots = $fromform->addscreenshots;
$fs = get_file_storage();
$ctx = context_user::instance($USER->id);
$files = $fs->get_area_files($ctx->id, 'user', 'draft', $screenshots);
if (!empty($files)) {
$level1 = floor($course->id / 1000) * 1000;
$directory = "hub/{$level1}/{$course->id}";
