public void bindCart()
{
int userid = WebSecurity.CurrentUserId;
if (db.Cart.Where(c => c.UserId == userid).Count() == 0)
{
rootCart rc = new rootCart();
rc.UserId = userid;
rc.next = 0;
db.Cart.Add(rc);
db.SaveChanges();
}
}
public ActionResult Details(string purchase, int id = 0)
{
bindCart();
setLastView(id);
if (purchase != null)
{
int CartId = getCartproduct(id);
if (CartId == 0)
{
int CurrentUser = WebSecurity.CurrentUserId;
rootCart cart = db.Cart.Where(m => m.UserId == CurrentUser).ToList().ElementAt(0);
CartItem ci = new CartItem();
ci.ProductId = id;
ci.Number = 1;
ci.next = cart.next;
db.CartItems.Add(ci);
db.SaveChanges();
cart.next = ci.CartItemId;
db.Entry(cart).State = EntityState.Modified;
db.SaveChanges();
ReWriteCart();
}
else
{
var cartitem = db.CartItems.Find(CartId);
cartitem.Number++;
db.Entry(cartitem).State = EntityState.Modified;
db.SaveChanges();
ReWriteCart();
}
MvcApplication.CartItemNUM++;
}
Response.Write("<script type='text/javascript'>window.onload=function(){var c = document.getElementById('cartnum');var num = " + MvcApplication.CartItemNUM + "+'';var cxt = c.getContext('2d');cxt.fillStyle = '#ff0000';cxt.beginPath();cxt.arc(10, 10, 10, 0, Math.PI * 2, true);cxt.closePath();cxt.fill();cxt.font = '10px Arial';cxt.textAlign = 'center';cxt.textBaseline = 'middle';cxt.fillStyle = 'white';cxt.fillText(num, 10, 10, 15);}</script>");
Product product = db.Products.Find(id);
if (product == null)
{
return(HttpNotFound());
}
return(View(product));
}
public void subtract(int id)
{
try
{
CartItem item = db.CartItems.Find(id);
if (item.Number > 1)
{
item.Number--;
db.Entry(item).State = EntityState.Modified;
db.SaveChanges();
}
else
{
var list = db.CartItems.Where(p => p.next == id).ToList();
if (list.Count != 0)
{
CartItem pre = list.ElementAt(0);
pre.next = item.next;
db.CartItems.Remove(item);
db.Entry(pre).State = EntityState.Modified;
db.SaveChanges();
}
else
{
var root = db.Cart.Where(c => c.next == id).ToList();
rootCart cart = root.ElementAt(0);
cart.next = item.next;
db.CartItems.Remove(item);
db.Entry(cart).State = EntityState.Modified;
db.SaveChanges();
}
}
MvcApplication.CartItemNUM--;
}
catch (Exception)
{
return;
}
ReWriteCart();
}
