public async Task RemoveAsync(Data.Order order)
{
foreach (var item in order.OrderItems)
{
var comic = await _context.ComicBooks.FindAsync(item.ComicBookId);
if (comic == null)
{
throw new NullReferenceException("Invalid comic book Id");
}
comic.Quantity = comic.Quantity + item.Quantity;
_context.Update(comic);
}
_context.RemoveRange(order.OrderItems);
_context.Remove(order);
await _context.SaveChangesAsync();
}
public Task DeleteAsync(Data.ComicBook comic)
{
_context.RemoveRange(comic.ComicBookArtists);
_context.Remove(comic);
return(_context.SaveChangesAsync());
}