public void AddBookToAuthor(int authorId, Book book)
{
using (Context)
{
try
{
var author = Context.Authors.Find(authorId);
if (author.Books == null)
author.Books = new List<Book>();
author.Books.Add(book);
var bookToUpdate = Context.Books.Find(book.Id);
if (bookToUpdate.Authors == null)
bookToUpdate.Authors = new List<Author>();
bookToUpdate.Authors.Add(author);
Context.SaveChanges();
}
catch
{
throw;
}
}
}
public void AddBook(Book book)
{
try
{
Context.Books.Add(book);
Context.SaveChanges();
}
catch
{
throw;
}
}
public ActionResult Create(string title, int quantity, int authorId)
{
if (title.Length < 1 || quantity < 0)
{
throw new ArgumentOutOfRangeException();
}
var authorRepo = new AuthorRepository();
var bookToAdd = new Book();
bookToAdd.Title = title;
bookToAdd.Quantity = quantity;
var bookRepo = new BookRepository();
bookRepo.AddBook(bookToAdd);
authorRepo.AddBookToAuthor(authorId, bookToAdd);
return RedirectToAction("Create");
}
