void INotificationService.LockRoom(ChatUser targetUser, ChatRoom room)
{
var userViewModel = new UserViewModel(targetUser);
// Tell everyone that the room's locked
Clients.Clients(_repository.GetAllowedClientIds(room)).lockRoom(userViewModel, room.Name, true);
Clients.AllExcept(_repository.GetAllowedClientIds(room).ToArray()).lockRoom(userViewModel, room.Name, false);
// Tell the caller the room was successfully locked
Clients.Caller.roomLocked(room.Name);
// Notify people of the change
OnRoomChanged(room);
}