/**
* Unregister courses
* @return array 1 if unregistration was successfull
*/
public static function unregister_courses($courseids)
{
global $DB;
// Ensure the current user is allowed to run this function
$context = context_system::instance();
self::validate_context($context);
require_capability('local/hub:unregistercourse', $context);
$params = self::validate_parameters(self::unregister_courses_parameters(), array('courseids' => $courseids));
$transaction = $DB->start_delegated_transaction();
//retieve site url
$token = optional_param('wstoken', '', PARAM_ALPHANUM);
$hub = new local_hub();
$siteurl = $hub->get_communication(WSSERVER, REGISTEREDSITE, null, $token)->remoteurl;
foreach ($params['courseids'] as $courseid) {
$hub->unregister_course($courseid, $siteurl);
//'true' indicates registration update mode
}
$transaction->allow_commit();
return true;
}
