19 declare(strict_types=1);
    39         $room->clearMessages();
    41         $connector = $this->gui->getConnector();
    42         $response = $connector->sendClearMessages($room->getRoomId(), $chat_user->getUserId());
 redirectIfNoPermission($permission)
Checks for requested permissions and redirects if the permission check failed. 
 
exitIfNoRoomExists(?ilChatroom $room)
Checks if a ilChatroom exists. 
 
Class ilChatroomGUIHandler. 
 
executeDefault(string $requestedMethod)
 
sendResponse($response, bool $isJson=false)
Sends a json encoded response and exits the php process. 
 
getRoomByObjectId(int $objectId)