public void AddItem(Product product, int quantity)
{
var line = _lineCollection.FirstOrDefault(p => p.Product.ProductId == product.ProductId);
if (line == null)
{
_lineCollection.Add(new CartLine { Product = product, Quantity = quantity });
}
else
{
line.Quantity += quantity;
}
}
public void AddItem(Product product, int quantity)
{
CartLine line = lineCollection.Where(p => p.Product == product).FirstOrDefault(); //return a product or null
if (line == null)
{
lineCollection.Add(
new CartLine { Product = product, Quantity = quantity }); // add an order if there is no order
}
else //if there is already a pre-exisitng order, program assumes we are just adding additional quantity
{
line.Quantity += quantity; //just add the amount of order to the existing order, line is a product query
}
}
public ActionResult Edit(Product product)
{
if (ModelState.IsValid)
{
repository.SaveProduct(product);
TempData["message"] = string.Format("{0} has been saved", product.Name);
return RedirectToAction("Index");
}
else
{
return View(product);
}
}
public ActionResult Create(Product product)
{
if (ModelState.IsValid)
{
repository.SaveProduct(product);
TempData["message"] = string.Format("{0} has been saved", product.Name);
return RedirectToAction("Index");
}
//there is something wrong with the data values
else
{
return View(product);
}
}
public void SaveProduct(Product product)
{
if (product.ProductId == 0)
{
context.Products.Add(product);
}
else
{
Product dbEntry = context.Products.Find(product.ProductId);
if (dbEntry != null)
{
dbEntry.Name = product.Name;
dbEntry.Description = product.Description;
dbEntry.Price = product.Price;
dbEntry.Category = product.Category;
}
}
context.SaveChanges();
}
public void SaveProduct(Product product)
{
//THIS IS A NEW PRODUCT
if (product.ProductId == 0)
{
context.Products.Add(product);
}
else
{
//FIND THE PRODUCT
Product dbEntry =
context.Products.Find(product.ProductId);
// IF WE CANNOT FIND THE PRODUCT THEN CREATE THE PRODUCT
if (dbEntry != null)
{
dbEntry.Name = product.Name;
dbEntry.Description = product.Description;
dbEntry.Price = product.Price;
dbEntry.Category = product.Category;
}
}
context.SaveChanges();
}
public void RemoveLine(Product product)
{
lineCollection.RemoveAll(p => p.Product.ProductId == product.ProductId);
}
