public PurchaseViewModel(Purchase purchase)
{
Price = purchase.Price;
DateOfPurchase = purchase.DateOfPurchase;
IsRecalled = purchase.IsRecalled;
Book = new BookViewModel(purchase.Book);
}
public IHttpActionResult CreatePurchase(int id)
{
var book = this.Data.Books.Find(id);
var currentUserId = this.User.Identity.GetUserId();
var user = this.Data.Users.First(u => u.Id == currentUserId);
if (book == null)
{
return this.BadRequest("invalid book id");
}
var purchase = new Purchase()
{
Book = book,
User = user,
Price = book.Price,
PurchaseDate = DateTime.Now,
isRecalled = false
};
if (book.Copies == 0)
{
return this.BadRequest("no book copies left");
}
book.Copies = book.Copies - 1;
this.Data.Purchases.Add(purchase);
this.Data.SaveChanges();
var result = new PurchaseViewModel()
{
Price = purchase.Price,
PurchaseDate = purchase.PurchaseDate,
IsRecalled = purchase.isRecalled,
PurchasePrice = purchase.Price,
BookTitle = purchase.Book.Title
};
return this.Ok(result);
}
public IHttpActionResult BuyBook([FromUri]int id)
{
var book = this.context.Books.FirstOrDefault(b => b.Id == id);
if (book == null)
{
return this.NotFound();
}
var rnd = new Random();
var purchase = new Purchase()
{
Book = book,
BookId = book.Id,
Date = DateTime.Now.AddDays(rnd.Next(-100, 0)),
IsRecalled = false,
Price = book.Price,
User = this.context.Users.FirstOrDefault(u => u.UserName == this.User.Identity.Name)
};
book.Copies--;
this.context.Purchases.Add(purchase);
try
{
this.context.SaveChanges();
return this.Ok("Book purchased successfully");
}
catch (Exception)
{
return this.BadRequest();
}
}