public async Task <IEnumerable <RoomDto> > GetRoomsByFloorIdAsync(int floorId)
        {
            IEnumerable <RoomDto> rooms;

            try
            {
                var roomsFromDb = await _floorRepository.GetByIdAsync(floorId);

                rooms = _mapper.Map <IEnumerable <RoomDto> >(roomsFromDb.Rooms);
            }
            catch (Exception ex)
            {
                _logger.LogError(ex.Message);
                return(null);
            }
            return(rooms);
        }