public IEnumerable <CdmaCellView> GetViews(string collegeName)
        {
            var ids   = _repository.GetCdmaCellIds(collegeName);
            var query = ids.Select(_cellRepository.Get).Where(cell => cell != null).ToList();

            return(query.Any()
                ? query.Select(x => CdmaCellView.ConstructView(x, _btsRepository))
                : null);
        }