public ModelToModel GetAll()
        {
            ModelToModel mm;

            mm = new ModelToModel();

            mm.streets = new List<Street>();
            using (BookMarketDbContext db = new BookMarketDbContext())
            {
                foreach (Street entry in db.GetAllStreets())
                {
                    mm.streets.Add(entry);
                }
            }
            return mm;
        }