public ActionResult AddRoom()
        {
            this.GenerateProfessor();

            Room room = new Room(course.Id, profesor.Id);

            courses.AddRoom(room);
            SetData();

            return(Json(new {
                type = "null",
                number = rooms.Count,
                token = rooms[rooms.Count - 1].Token,
                id = rooms[rooms.Count - 1].Id
            }));
        }