public ActionResult AddBookAuthor(int id)
{
LibraryManagementSystemContext context = new LibraryManagementSystemContext();
BooksRepository booksRepository = new BooksRepository(context);
AuthorsRepository authorsRepository = new AuthorsRepository(context);
BooksAddBookAuthorVM model = new BooksAddBookAuthorVM();
Book book = booksRepository.GetByID(id);
model.ID = book.ID;
model.Title = book.Title;
model.Authors = model.Authors ?? new List<SelectListItem>();
model.Authors = SelectListHandler.Create<Author>(
authorsRepository.GetAll(), a => (a.FirstName + " " + a.LastName), a => a.ID.ToString(), model.AuthorID.ToString());
return View(model);
}
public ActionResult AddBookAuthor(BooksAddBookAuthorVM model)
{
LibraryManagementSystemContext context = new LibraryManagementSystemContext();
BooksRepository booksRepository = new BooksRepository(context);
AuthorsRepository authorsRepository = new AuthorsRepository(context);
Book book = null;
Author author = null;
if (!ModelState.IsValid)
{
return View(model);
}
else
{
book = booksRepository.GetByID(model.ID);
author = authorsRepository.GetByID(model.AuthorID);
book.Authors.Add(author);
booksRepository.Save(book);
}
return RedirectToAction("Details/" + model.ID, "Books");
}
