public Result <ShowAdvert> GetAdvert(AdType adType, int id, bool admin)
        {
            var showAdvert = new ShowAdvert {
                AdType = adType
            };

            if (adType == AdType.Flat)
            {
                var flat = _getAdvertService.GetAdvert <Flat, ShowFlat>(id, admin);

                if (flat == null)
                {
                    return(new Result <ShowAdvert>(false, null, "", null));
                }

                var neighbours = _getNextPreviousService.GetNeighbours <Flat, ShowFlat>(id);
                if (neighbours.Previous != null)
                {
                    flat.Previous = neighbours.Previous.Number;
                }
                if (neighbours.Next != null)
                {
                    flat.Next = neighbours.Next.Number;
                }

                showAdvert.Flat = flat;
            }
            else if (adType == AdType.House)
            {
                var house = _getAdvertService.GetAdvert <House, ShowHouse>(id, admin);
                if (house == null)
                {
                    return(new Result <ShowAdvert>(false, null, "", null));
                }

                var neighbours = _getNextPreviousService.GetNeighbours <House, ShowHouse>(id);
                if (neighbours.Previous != null)
                {
                    house.Previous = neighbours.Previous.Number;
                }
                if (neighbours.Next != null)
                {
                    house.Next = neighbours.Next.Number;
                }
                showAdvert.House = house;
            }
            else if (adType == AdType.Land)
            {
                var land = _getAdvertService.GetAdvert <Land, ShowLand>(id, admin);
                if (land == null)
                {
                    return(new Result <ShowAdvert>(false, null, "", null));
                }

                var neighbours = _getNextPreviousService.GetNeighbours <Land, ShowLand>(id);
                if (neighbours.Previous != null)
                {
                    land.Previous = neighbours.Previous.Number;
                }
                if (neighbours.Next != null)
                {
                    land.Next = neighbours.Next.Number;
                }
                showAdvert.Land = land;
            }

            return(new Result <ShowAdvert>(true, null, "", showAdvert));
        }