public string UpdateDishChefStar(dynamic requestData)
        {
            try
            {
                #region 修改菜品基本信息
                DishChefStar model   = JsonConvert.DeserializeObject <DishChefStar>(JsonConvert.SerializeObject(requestData.dishChefStar));
                var          IsExist = (from v in db.DishChefStar
                                        where v.ChefStarId == model.ChefStarId && v.DishType == model.DishType
                                        select v).FirstOrDefault();

                var dishChefDishId = 0;


                //等于空就增加
                if (IsExist == null)
                {
                    if (model.DishStory.IndexOf("base64") > 0)
                    {
                        string d = model.DishStory;

                        foreach (string a in imgHandel.GetHtmlImageUrlList(d))
                        {
                            if (a.IndexOf(ImgHandle.DNS) < 0)
                            {
                                string[] asplit   = a.Split(',');
                                string   imgtype  = asplit[0].Substring(11, asplit[0].Length - 18);
                                string   filepath = imgHandel.Base64StringToImage(asplit[1], imgtype, "/pic/Dishtutor");
                                d = d.Replace(a, filepath);
                            }
                        }
                        model.DishStory = d;
                    }
                    model.CreateTime   = DateTime.Now;
                    model.UpdateTime   = DateTime.Now;
                    model.CreatePerson = model.UpdatePerson;
                    model.VisitCount   = 0;
                    model.PrasieCount  = 0;
                    model.ShareCount   = 0;
                    db.DishChefStar.Add(model);
                    db.SaveChanges();
                    dishChefDishId = model.DishChefStarId;
                }
                else
                {
                    IsExist.UpdateTime = DateTime.Now;
                    IsExist.DishName   = model.DishName;
                    IsExist.DishStory  = model.DishStory;
                    string d = IsExist.DishStory;
                    if (IsExist.DishStory.IndexOf("base64") > 0)
                    {
                        foreach (string a in imgHandel.GetHtmlImageUrlList(d))
                        {
                            if (a.IndexOf(ImgHandle.DNS) < 0)
                            {
                                string[] asplit   = a.Split(',');
                                string   imgtype  = asplit[0].Substring(11, asplit[0].Length - 18);
                                string   filepath = imgHandel.Base64StringToImage(asplit[1], imgtype, "/pic/Dishtutor");
                                d = d.Replace(a, filepath);
                            }
                        }
                    }
                    IsExist.DishStory    = d;
                    IsExist.DishPicUrl   = model.DishPicUrl;
                    IsExist.UpdatePerson = model.UpdatePerson;
                    model.DishChefStarId = 0;
                    db.Entry <DishChefStar>(IsExist).State = EntityState.Modified;
                    db.SaveChanges();
                    dishChefDishId = IsExist.DishChefStarId;
                }

                #endregion

                try
                {
                    #region 修改菜品调料

                    var middledishMaterial = requestData.dishMaterial;
                    //首先删除已存在菜品Id的调料
                    List <DishMaterial> qdishMaterial = new List <DishMaterial>();

                    for (int i = 0; i < middledishMaterial.Count; i++)
                    {
                        qdishMaterial.Add(JsonConvert.DeserializeObject <DishMaterial>(JsonConvert.SerializeObject(middledishMaterial[i])));
                    }

                    var sql = string.Format(@"Delete DishMaterial where DishId={0}", dishChefDishId);
                    dataContext.ExecuteNonQuery(CommandType.Text, sql);

                    //保存调料信息
                    foreach (DishMaterial dm in qdishMaterial)
                    {
                        dm.DishId = dishChefDishId;
                        db.DishMaterial.Add(dm);
                    }
                    db.SaveChanges();

                    #endregion

                    #region 修改菜品步骤

                    var middleDishStep = requestData.dishStep;
                    //先删除已有调料


                    List <DishStep> qDishStep = new List <DishStep>();

                    for (int i = 0; i < middleDishStep.Count; i++)
                    {
                        qDishStep.Add(JsonConvert.DeserializeObject <DishStep>(JsonConvert.SerializeObject(middleDishStep[i])));
                    }
                    string sqlDishStep = string.Format(@"Delete DishStep where DishId={0}", dishChefDishId);
                    dataContext.ExecuteNonQuery(CommandType.Text, sqlDishStep);
                    //保存
                    int t = 1;
                    foreach (DishStep i in qDishStep)
                    {
                        i.DishId = dishChefDishId;
                        i.StepId = t;
                        db.DishStep.Add(i);
                        t++;
                    }
                    db.SaveChanges();

                    #endregion

                    #region 修改推荐调料

                    var middleflavourRecRole = requestData.flavourRecRole;

                    List <FlavourRecRole> modelflavourRecRole = new List <FlavourRecRole>();
                    for (int i = 0; i < middleflavourRecRole.Count; i++)
                    {
                        var test1 = JsonConvert.SerializeObject(middleflavourRecRole[i]);
                        var test2 = JsonConvert.DeserializeObject <FlavourRecRole>(test1);
                        modelflavourRecRole.Add(test2);
                    }


                    var sqlflavourRecRole = string.Format(@"Delete FlavourRecRole where RoleId={0} and DishId={1}", modelflavourRecRole[0].RoleId, dishChefDishId);
                    dataContext.ExecuteNonQuery(CommandType.Text, sqlflavourRecRole);
                    foreach (FlavourRecRole m in modelflavourRecRole)
                    {
                        m.DishId     = dishChefDishId;
                        m.CreateTime = DateTime.Now;
                        m.UpdateTime = DateTime.Now;
                        db.FlavourRecRole.Add(m);
                        db.SaveChanges();
                    }
                    #endregion
                }
                catch (Exception)
                {
                    return("OK");
                }

                return("OK");
            }
            catch (Exception)
            {
                return("No");
            }
        }
        public string AddDishChefStar(dynamic requestData)
        {
            try
            {
                string       addDishTutor = JsonConvert.SerializeObject(requestData);
                DishChefStar model        = JsonConvert.DeserializeObject <DishChefStar>(addDishTutor);
                var          IsExist      = (from v in db.DishChefStar
                                             where v.ChefStarId == model.ChefStarId && v.DishType == model.DishType
                                             select v).FirstOrDefault();
                //等于空就增加
                if (IsExist == null)
                {
                    if (model.DishStory.IndexOf("base64") > 0)
                    {
                        string d = model.DishStory;

                        foreach (string a in imgHandel.GetHtmlImageUrlList(d))
                        {
                            if (a.IndexOf(ImgHandle.DNS) < 0)
                            {
                                string[] asplit   = a.Split(',');
                                string   imgtype  = asplit[0].Substring(11, asplit[0].Length - 18);
                                string   filepath = imgHandel.Base64StringToImage(asplit[1], imgtype, "/pic/Dishtutor");
                                d = d.Replace(a, filepath);
                            }
                        }
                        model.DishStory = d;
                    }
                    model.CreateTime  = DateTime.Now;
                    model.UpdateTime  = DateTime.Now;
                    model.VisitCount  = 0;
                    model.PrasieCount = 0;
                    model.ShareCount  = 0;
                    db.DishChefStar.Add(model);
                    db.SaveChanges();
                    return(model.DishChefStarId.ToString());
                }
                //不为空就是修改
                else
                {
                    IsExist.UpdateTime = DateTime.Now;
                    IsExist.DishName   = model.DishName;
                    IsExist.DishStory  = model.DishStory;

                    if (IsExist.DishStory.IndexOf("base64") > 0)
                    {
                        string d = IsExist.DishStory;

                        foreach (string a in imgHandel.GetHtmlImageUrlList(d))
                        {
                            if (a.IndexOf(ImgHandle.DNS) < 0)
                            {
                                string[] asplit   = a.Split(',');
                                string   imgtype  = asplit[0].Substring(11, asplit[0].Length - 18);
                                string   filepath = imgHandel.Base64StringToImage(asplit[1], imgtype, "/pic/Dishtutor");
                                d = d.Replace(a, filepath);
                            }
                        }
                        IsExist.DishStory = d;
                    }

                    IsExist.DishPicUrl   = model.DishPicUrl;
                    IsExist.UpdatePerson = model.UpdatePerson;
                    db.Entry <DishChefStar>(IsExist).State = EntityState.Modified;
                    db.SaveChanges();
                    return(IsExist.DishChefStarId.ToString());
                }
            }
            catch (Exception)
            {
                return("No");
            }
        }