public IActionResult OpenHouses(string id)
        {
            if (User.IsInRole("Admin"))
            {
                ICollection <OpenHouse> openHouses = _repo.GetAllOpenHouses();

                return(View(openHouses));
            }
            else
            {
                ICollection <OpenHouse> openHouses = _repo.GetOpenHousesByUser(id);

                return(View(openHouses));
            }
        }