// GET: editEvaluation
        public ActionResult EditEvaluation(int?doctor_id, int?reservation_id)
        {
            if (doctor_id == null || reservation_id == null)
            {
                return(new HttpStatusCodeResult(HttpStatusCode.BadRequest));
            }
            var doctor = db.DOCTOR.Find(doctor_id);

            if (doctor == null)
            {
                return(HttpNotFound());
            }
            var isEvaluated = db.DOCTOR_EVALUATION.Find(reservation_id);

            if (isEvaluated != null)
            {
                return(this.RedirectTo("Index", "Patient"));
            }
            var v_EVALUATION = new V_EVALUATION();

            if (reservation_id != null)
            {
                v_EVALUATION.DOCTOR_NM      = doctor.DOCTOR_NM;
                v_EVALUATION.DOCTOR_ID      = doctor.DOCTOR_ID;
                v_EVALUATION.LEVEL          = doctor.LEVEL;
                v_EVALUATION.RATE           = 0;
                v_EVALUATION.RESERVATION_ID = (int)reservation_id;
            }
            return(View(v_EVALUATION));
        }
        public ActionResult EditEvaluation(V_EVALUATION v_EVALUATION)
        {
            if (v_EVALUATION == null)
            {
                return(new HttpStatusCodeResult(HttpStatusCode.BadRequest));
            }
            var dOCTOR_EVALUATION = new DOCTOR_EVALUATION()
            {
                EVALUATION_ID  = Global.NextEvaluationID(),
                RESERVATION_ID = v_EVALUATION.RESERVATION_ID,
                DOCTOR_ID      = v_EVALUATION.DOCTOR_ID,
                PATIENT_ID     = Global.CurrentUserID,
                RATE           = v_EVALUATION.RATE,
                DETAIL         = v_EVALUATION.DETAIL,
                AGREETIMES     = 0,
                INSDATE        = DateTime.Now
            };

            db.DOCTOR_EVALUATION.Add(dOCTOR_EVALUATION);
            db.SaveChanges();
            var doctor = db.DOCTOR.Find(v_EVALUATION.DOCTOR_ID);

            if (doctor == null)
            {
                return(HttpNotFound());
            }
            var list = db.DOCTOR_EVALUATION.Where(m => m.DOCTOR_ID == v_EVALUATION.DOCTOR_ID).ToList();

            if (list != null)
            {
                doctor.LEVEL = (doctor.LEVEL + v_EVALUATION.RATE) / list.Count();
            }
            else
            {
                doctor.LEVEL = v_EVALUATION.RATE;
            }
            var state = db.Entry(doctor);

            state.State = System.Data.Entity.EntityState.Unchanged;
            state.Property(m => m.LEVEL).IsModified = true;
            db.SaveChanges();
            //TODO
            //修改之后页面跳转至原页面(患者评价)
            return(this.RedirectTo("Index", "Patient"));
        }