private Review SerializeToReview(BookstoreEntities context, ReviewTransferObject reviewTransferObject)
        {
            Review review = new Review();
            review.Content = reviewTransferObject.Content;
            string authorName = reviewTransferObject.Author;
            if (authorName != null)
            {
                review.Author = CreateOrLoadAuthor(context, authorName);
            }

            review.DateOfCreation = reviewTransferObject.Date;
            
            return review;
        }