// PUT api/Goal/5
        public HttpResponseMessage PutGoal(int id, Goal goal)
        {
            if (!ModelState.IsValid)
            {
                return Request.CreateErrorResponse(HttpStatusCode.BadRequest, ModelState);
            }

            if (id != goal.Id)
            {
                return Request.CreateResponse(HttpStatusCode.BadRequest);
            }

            db.Entry(goal).State = EntityState.Modified;

            try
            {
                db.SaveChanges();
            }
            catch (DbUpdateConcurrencyException ex)
            {
                return Request.CreateErrorResponse(HttpStatusCode.NotFound, ex);
            }

            return Request.CreateResponse(HttpStatusCode.OK);
        }
        // POST api/Goal
        public GoalViewModel PostGoal(Goal goal)
        {
            if (ModelState.IsValid)
            {
                db.Goals.Add(goal);
                db.SaveChanges();

                HttpResponseMessage response = Request.CreateResponse(HttpStatusCode.Created, goal);
                response.Headers.Location = new Uri(Url.Link("DefaultApi", new { id = goal.Id }));
                var savedGoal = db.Goals.Find(goal.Id);
                //TODO check out virtual properties and when are filled. PLAYER IS NULL.
                var newGoal = Mapper.Map<GoalViewModel>(savedGoal);
                newGoal.Player = Mapper.Map<PlayerViewModel>(db.Players.Find(goal.PlayerId));
                return newGoal;
            }
            return null;
            //else
            //{
            //    return Request.CreateErrorResponse(HttpStatusCode.BadRequest, ModelState);
            //}
        }