public async Task <IActionResult> Create(
            [Bind("Title, Authors, PagesNumber, Publisher, ReleaseYear")] BookViewModel bookViewModel, [FromForm(Name = "uploadImage")] IFormFile uploadImage)
        {
            //int authorId;
            //bool IsAuthorExists;

            try
            {
                if (ModelState.IsValid)
                {
                    if (uploadImage != null)
                    {
                        bookViewModel.Image = UploadImage(uploadImage);
                    }
                    var book = new Book()
                    {
                        Title       = bookViewModel.Title,
                        PagesNumber = bookViewModel.PagesNumber,
                        Publisher   = bookViewModel.Publisher,
                        ReleaseYear = bookViewModel.ReleaseYear,
                        Image       = bookViewModel.Image
                    };
                    await _booksRepository.AddBookData(book);

                    foreach (var author in bookViewModel.Authors)
                    {
                        await AddAuthorForBookToRelationsDatabase(book.Id, author);
                    }
                    return(RedirectToAction(nameof(Index)));
                }
            }
            catch (DbUpdateException /*ex*/)
            {
                ModelState.AddModelError("", "Unable to save changes. " +
                                         "Try again, and if the problem persists " +
                                         "see your system administrator.");
            }
            return(View(bookViewModel));
        }