public int Create(DbBook book)
{
var newId = _books.Any() ? (_books.Max(x => x.Id) + 1) : 1;
book.Id = newId;
_books.Add(book);
return(newId);
}
public void Update(DbBook book)
{
var dbbook = Get(book.Id);
dbbook.ISBN = book.ISBN;
dbbook.Pages = book.Pages;
dbbook.Title = book.Title;
dbbook.Publisher = book.Publisher;
dbbook.PublishDate = book.PublishDate;
}