gistfile1.aw

/**
     * @param  Message $message
     * @return Thread
     */
    public function addMessage(Message $message)
    {
        if ($this->status === self::OPENED) {
            foreach ($this->participants as $participant) {
                if ($participant->getUser() === $message->getAuthor()) {
                    $participant->setFirstNotReadMessage(null);
                    $participant->setStatus(UserThread::READ);
                } elseif ($participant->getStatus() === UserThread::READ) {
                    $participant->setFirstNotReadMessage($message);
                    $participant->setStatus(UserThread::NOT_READ);
                }
            }

            $this->messages->add($message);
        }

        return $this;
    }