public ActionResult Create(CreateTutorialViewModel model)
        {
            if (ModelState.IsValid && model.Archive != null && model.Archive.ContentLength > 0)
            {
                try
                {
                    byte[] byteArray = null;

                    using (var memory = new MemoryStream())
                    {
                        model.Archive.InputStream.CopyTo(memory);
                        byteArray = memory.GetBuffer();
                    }

                    var fileName = string.Format(GlobalPatternConstants.VERSION_NAME, DateTime.Now.ToUniversalTime(), model.Archive.FileName);
                    var fullPath = storage.UploadFile(byteArray, fileName, GlobalConstants.STORAGE_FOLDER);
                    var userId = this.User.Identity.GetUserId();

                    var tutorial = new ThesisTutorial()
                    {
                        FilePath = fullPath,
                        TeacherId = userId,
                        FileName = fileName
                    };

                    this.Data.ThesisTutorials.Add(tutorial);
                    this.Data.SaveChanges();
                }
                catch (Exception)
                {
                    return View(model);
                }

                return RedirectToAction("Index", "Tutorial");
            }

            return View(model);
        }
        public ActionResult Create(CreateTutorialViewModel model)
        {
            if (ModelState.IsValid && model.Archive != null && model.Archive.ContentLength > 0)
            {
                try
                {
                    byte[] byteArray = null;

                    using (var memory = new MemoryStream())
                    {
                        model.Archive.InputStream.CopyTo(memory);
                        byteArray = memory.GetBuffer();
                    }

                    var fileName = string.Format(GlobalPatternConstants.VERSION_NAME, DateTime.Now.ToUniversalTime(), model.Archive.FileName);
                    var fullPath = storage.UploadFile(byteArray, fileName, GlobalConstants.STORAGE_FOLDER);
                    var userId   = this.User.Identity.GetUserId();

                    var tutorial = new ThesisTutorial()
                    {
                        FilePath  = fullPath,
                        TeacherId = userId,
                        FileName  = fileName
                    };

                    this.Data.ThesisTutorials.Add(tutorial);
                    this.Data.SaveChanges();
                }
                catch (Exception)
                {
                    return(View(model));
                }

                return(RedirectToAction("Index", "Tutorial"));
            }

            return(View(model));
        }