public ViewModel.ReturnResult <bool> AddProductDetail(ViewModel.ProductFeatureModel productFeature)
        {
            ViewModel.ReturnResult <bool> returnResult = new ViewModel.ReturnResult <bool>();
            try
            {
                DomainDeriven.AkoSatrapDb context = new DomainDeriven.AkoSatrapDb();

                var product = context.Products.Include("Product2").FirstOrDefault(r => r.Id == productFeature.ProductId);
                if (product != null)
                {
                    var enProductFeatureDb = new DomainDeriven.ProductFeature
                    {
                        Title       = productFeature.EnTitle,
                        Description = productFeature.EnDescription,
                        Order       = productFeature.Order,
                        ProductId   = product.Product2.Id,
                        IsEnglish   = true
                    };

                    var faProductFeatureDb = new DomainDeriven.ProductFeature
                    {
                        Title           = productFeature.Title,
                        Description     = productFeature.Description,
                        Order           = productFeature.Order,
                        ProductFeature2 = enProductFeatureDb,
                        ProductId       = product.Id,
                        IsEnglish       = false
                    };

                    context.ProductFeatures.Add(faProductFeatureDb);

                    context.SaveChanges();
                }
                else
                {
                    returnResult.SetError("محصول مورد نظر پیدا نشدُ");
                }
            }
            catch (Exception ex)
            {
                returnResult.SetError(ex.Message);
            }

            return(returnResult);
        }
        public ViewModel.ReturnResult <bool> UpdateProductFeature(ViewModel.ProductFeatureModel productFeature)
        {
            ViewModel.ReturnResult <bool> returnResult = new ViewModel.ReturnResult <bool>();
            try
            {
                DomainDeriven.AkoSatrapDb context = new DomainDeriven.AkoSatrapDb();

                var dbProductFeature = context.ProductFeatures.Include("ProductFeature2")
                                       .FirstOrDefault(r => !r.IsEnglish.Value && r.Id == productFeature.Id);

                if (dbProductFeature != null)
                {
                    dbProductFeature.Title = productFeature.Title;
                    dbProductFeature.ProductFeature2.Title       = productFeature.EnTitle;
                    dbProductFeature.Description                 = productFeature.Description;
                    dbProductFeature.ProductFeature2.Description = productFeature.EnDescription;
                    dbProductFeature.Order = productFeature.Order;
                    dbProductFeature.ProductFeature2.Order = productFeature.Order;


                    context.SaveChanges();
                }
                else
                {
                    returnResult.SetError("جزییات محصول مورد نظر پیدا نشد");
                }


                context.SaveChanges();
            }
            catch (Exception ex)
            {
                returnResult.SetError(ex.Message);
            }

            return(returnResult);
        }