public IServiceResults<Guid> Add(IeltsMaterial model)
 {
     _IeltsMaterial.Add(model);
     var result = _uow.SaveChanges();
     return new ServiceResults<Guid>()
     {
         IsSuccessfull = result.ToBool(),
         Message = result.ToMessage(BusinessMessage.Error),
         Result = model.IeltsMaterialId
     };
 }
        public virtual ActionResult SendWrittingFile(IeltsMaterial model, HttpPostedFileBase file)
        {
            model.IeltsMaterialId = Guid.NewGuid();
            if (!ModelState.IsValid)
            {
                SetDropDownlist();
                return View(model);
            }
            if (file == null)
            {
                SetDropDownlist();
                ModelState.AddModelError(nameof(model.File), LocalMessage.PleaseSelectFile);
                return View(model);
            }
            model.Rebind();
            #region SaveFile

            byte[] fileData = null;
            using (var binaryReader = new BinaryReader(file.InputStream))
            {
                fileData = binaryReader.ReadBytes(file.ContentLength);
            }
            var url = _filesProxyAdapter.UploadDocument(new PostedFile
            {
                Content = fileData,
                FileName = $"{model.IeltsMaterialId}.{file.FileName.Split('.')[1]}"
            });
            if (string.IsNullOrEmpty(url.DirectLink))
            {
                SetDropDownlist();
                ModelState.AddModelError(nameof(model.File), LocalMessage.Error);
                return View(model);
            }
            #endregion
            #region SaveRecord
            model.File = url.DirectLink;
            model.Path = url.Extension;
            var insertResult = _ieltsMaterialService.Add(model);
            if (!insertResult.IsSuccessfull)
            {
                this.NotificationController().Notify(insertResult.Message, NotificationStatus.Error);
                _filesProxyAdapter.Delete(url.Extension);
            }
            #endregion
            return RedirectToAction(MVC.IELTS.ActionNames.SendWrittingFile, MVC.IELTS.Name);
        }