gistfile1.cs

public HttpResponseMessage PutGame(int id, Game game)
        {
            
            if (ModelState.IsValid && id == game.Id)
            {
                var g = db.Games.Find(id);
                g.InjectFrom(game);
                g.ModifyOn = DateTime.Now;
                game.InsertOn = DateTime.Now;
                try
                {
                    db.SaveChanges();
                }
                catch (DbUpdateConcurrencyException)
                {
                    return Request.CreateResponse(HttpStatusCode.NotFound);
                }
                return Request.CreateResponse(HttpStatusCode.OK);
            }
            else
            {
                return Request.CreateResponse(HttpStatusCode.BadRequest);
            }
        }