public async Task <IActionResult> DeleteBook(Guid bookId) { var success = await _booksProvider.DeleteBookAsync(bookId); if (success) { return(View("ShowMessage", new MessageModel("/Librarian/Index", "Книга успешно удалена", false, 1))); } return(View("ShowMessage", new MessageModel("/Librarian/Index", "Произошла ошибки при удалении", true, 1))); }