/**
  * @param ilChatroom $room
  * @return array
  */
 public function getMessages(ilChatroom $room)
 {
     /**
      * @var $ilUser ilObjUser
      */
     global $ilUser;
     include 'Modules/Chatroom/classes/class.ilChatroomUser.php';
     $messages = $room->getLastMessagesForChatViewer($room->getSetting('display_past_msgs'), new ilChatroomUser($ilUser, $room));
     $output_messages = array();
     foreach ($messages as $msg) {
         $output_messages[] = $msg;
     }
     return $output_messages;
 }