public void SaveReturned(int id, string userId)
{
BookByUser bookByUser = new BookByUser
{
BookId = id,
ShipDate = DateTime.Now,
Users_Id = userId
};
db.BookByUser.Add(bookByUser);
db.SaveChanges();
}
public void ReserveAndReturn(int bookId, bool isReserve)
{
using (OwinAuthDbContext db = new OwinAuthDbContext())
{
Book book = db.Book.Find(bookId);
if (isReserve)
{
book.Quantity -= 1;
}
else
{
book.Quantity += 1;
}
db.Book.Attach(book);
db.Entry(book).State = EntityState.Modified;
db.SaveChanges();
}
}