/**
* Send a stomp collaboration event message to all or a single user
* Always call before sendResponse because the response will be
* complete and stomp will throw exceptions.
*
* @param String $topicId
* could be a userId for a forumId
*/
public static function sendEvent($eventDomain, $topicId, $eventId, $eventDescription, $eventParameters)
{
$impulseHeader = array("persistent" => 'false');
$content = array("sourceUserId" => self::getUserId(), "type" => $eventId, "description" => $eventDescription, "params" => $eventParameters);
$msg = json_encode($content, JSON_NUMERIC_CHECK);
if (self::$stompMode) {
try {
$stomp = new Stomp('tcp://localhost:61613', 'admin', 'password');
$stomp->send(self::$topic . $eventDomain . '.' . $topicId, $msg, $impulseHeader);
unset($stomp);
} catch (StompException $e) {
self::logError($e, __METHOD__);
}
} else {
$pdo = new EventServicePDO();
$pdo->pushEvent(self::getUserId(), $eventDomain . '.' . $topicId, $msg);
}
}
/**
*
* @see EventServicePDO::unsubscribe()
*/
public static function unsubscribe($userId, $topic)
{
try {
$pdo = new EventServicePDO();
$pdo->unsubscribe($userId, $topic);
AppUtils::sendResponse(array("success" => true, "message" => "User {$userId} unsubscribed from topic {$topic}"));
} catch (PDOException $e) {
AppUtils::logError($e, __METHOD__);
AppUtils::sendError($e->getCode(), "Error unsubscribing to events user {$userId} topic {$topic}", $e->getMessage());
}
}
/**
* Leave forum
*
* @see ForumServicePDO::setForumEnrollmentStatus()
*/
public static function leaveForum($forumId, $userId)
{
$app = \Slim\Slim::getInstance();
try {
$pdo = new ForumServicePDO();
$forum = $pdo->getForum($forumId);
$params = array();
$params['forumId'] = $forumId;
$params['userId'] = $userId;
$params['forumName'] = $forum['name'];
// $params['sourceUserId'] = AppUtils::getUserId();
$params['enrollmentStatus'] = EnrollmentStatus::Left;
/*
* When status is set to left (leaving) unsubscribe to the forum events
* and remove enrollment from the forum users list
*/
$eventPdo = new EventServicePDO();
$eventPdo->unsubscribe($userId, ForumEvent::DOMAIN . '.' . $forumId);
$eStatus = $pdo->setForumEnrollmentStatus($forumId, $userId, $params['enrollmentStatus']);
// Send the event to the user who left so they can update the
// UI because they will no longer receive forum events
AppUtils::sendEvent(UserEvent::DOMAIN, $userId, UserEvent::REMOVED, "Forum removed", $params);
// Let all other forum members know that this user left the
// forum
AppUtils::sendEvent(ForumEvent::DOMAIN, $forumId, ForumEvent::ENROLLMENT, "User has left forum", $params);
AppUtils::sendResponse($eStatus);
} catch (Exception $e) {
AppUtils::logError($e, __METHOD__);
AppUtils::sendError($e->getCode(), "Error leaving forum for user {$userId} in forum {$forumId}", $e->getMessage());
}
}
