/**
* Register courses
* @return array ids of created courses
*/
public static function register_courses($courses)
{
global $DB;
// Ensure the current user is allowed to run this function
$context = context_system::instance();
self::validate_context($context);
require_capability('local/hub:registercourse', $context);
$params = self::validate_parameters(self::register_courses_parameters(), array('courses' => $courses));
$hub = new local_hub();
//retieve site url
$token = optional_param('wstoken', '', PARAM_ALPHANUM);
$siteurl = $hub->get_communication(WSSERVER, REGISTEREDSITE, null, $token)->remoteurl;
$site = $hub->get_site_by_url($siteurl);
//check that the number of allowed publication is not reached
if (isset($site->publicationmax)) {
//site setting (overwrite the hub setting value)
$maxpublication = $site->publicationmax;
} else {
//hub setting
$maxpublication = get_config('local_hub', 'maxcoursesperday');
}
if ($maxpublication !== false) {
//retrieve the number of publication for the last 24hours
$options = array();
$options['lastpublished'] = strtotime("-1 day");
$options['siteid'] = $site->id;
$options['enrollable'] = true;
$options['downloadable'] = true;
$lastpublishedcourses = $hub->get_courses($options);
if (!empty($lastpublishedcourses)) {
if (count($lastpublishedcourses) >= $maxpublication) {
if ($maxpublication > 0) {
//get the oldest publication
$nextpublicationtime = get_string('never', 'local_hub');
$oldestpublicationtime = time();
foreach ($lastpublishedcourses as $lastpublishedcourse) {
if ($lastpublishedcourse->timepublished < $oldestpublicationtime) {
$oldestpublicationtime = $lastpublishedcourse->timepublished;
}
}
$errorinfo = new stdClass();
//calculate the time when the site can publish again
$errorinfo->time = format_time(24 * 60 * 60 - (time() - $oldestpublicationtime));
$errorinfo->maxpublication = $maxpublication;
throw new moodle_exception('errormaxpublication', 'local_hub', '', $errorinfo);
} else {
throw new moodle_exception('errornopublication', 'local_hub');
}
}
}
}
$transaction = $DB->start_delegated_transaction();
$courseids = array();
foreach ($params['courses'] as $course) {
$courseids[] = $hub->register_course($course, $siteurl);
//'true' indicates registration update mode
}
$transaction->allow_commit();
return $courseids;
}
