public IActionResult Books(string Id)
{
var orderItems = _context.OrderItems.Include(c => c.Books.Categories).
Include(x => x.Orders.ApplicationUser).Where(o => o.Orders.ApplicationUserId == Id).ToList();
PurchasedBooks model = new PurchasedBooks();
model.items = orderItems;
return(View(model));
}
public void PurchaseBook(Book book)
{
if (CanPurchaseBook(book).Any())
{
throw new InvalidOperationException();
}
book.AddBookReader(this);
var purchasedBook = new PurchasedBook(book, this);
PurchasedBooks.Add(purchasedBook);
}
public IReadOnlyList <ErrorCode> CanPurchaseBook(Book book)
{
var errors = (List <ErrorCode>)book.CanAddBookReader(this);
if (HasPurchasedBook(book))
{
errors.Add(ErrorCode.YOU_HAVE_THIS_BOOK);
}
if (PurchasedBooks.Count() >= MAX_BOOK_COUNT)
{
errors.Add(ErrorCode.BOOK_LIMIT_ERROR);
}
return(errors);
}
public bool HasPurchasedBook(Book book)
{
return(PurchasedBooks.Any(x => x.Book == book));
}