static void Main(string[] args)
{
ShopService.SavePurchasesToXml("D:\\1.xml");
//Purchase p2 = new Purchase()
//{
// Date = DateTime.Now,
// UserId = 322,
// PurchaseProducts = new PurchaseProduct[] { new PurchaseProduct { ProductId = 9, Quantity = 12 } }
//};
//Purchase p1 = new Purchase { PurchaseId = 6 };
//ShopService.UpdatePurchase(p1, p2);
//Product tmp = new Product { Name = "broiler",Price=0,Category=1 };
//Purchase p1 = new Purchase { Date = DateTime.Now, UserId = 22,
// PurchaseProducts = new PurchaseProduct[] { new PurchaseProduct { ProductId = 10 } , new PurchaseProduct {ProductId = 2,Quantity=2 } } };
//ShopService.AddPurchase(p1);
using (CodeFirstExistingDb.ShopModel dbc = new CodeFirstExistingDb.ShopModel())
{
//DbFirst.Product temp = new DbFirst.Product() { Category = DbFirst.ProductCategory.groceries, ProductId = 3 };
//List<DbFirst.Product> a = dbc.Products.ToList<DbFirst.Product>();
//if (a.Contains(temp)) Console.WriteLine("yes");
//else Console.WriteLine("no");
foreach (var item in dbc.Purchases)
{
Console.WriteLine("Username with id " + item.UserId + " bought on " + "{0:d}" + " this goods:", item.Date.Value);
foreach (var product in item.PurchaseProducts)
{
Console.WriteLine(product.Quantity.ToString() + " " + product.Product.Category
+ " pieces of " + product.Product.Name + ", total price:" + "{0:c}", product.Quantity * product.Product.Price);
}
Console.WriteLine();
}
}
Console.ReadKey();
}
public static void UpdateProduct(Product itemtoupdate, Product itemupdated)
{
using (ShopModel db = new ShopModel())
{
Product tmp = FindProduct(itemtoupdate.ProductId, db);
tmp.Name = itemupdated.Name;
tmp.Price = itemupdated.Price;
tmp.Image = itemtoupdate.Image;
tmp.PurchaseProducts.Clear();
foreach (var productPosition in itemupdated.PurchaseProducts)
{
tmp.PurchaseProducts.Add(productPosition);
}
db.SaveChanges();
}
}
public static void SavePurchasesToXml(string filename)
{
using (ShopModel db = new ShopModel())
{
XElement Purchases = new XElement("Purchases", from c in db.Purchases.ToList()
select new XElement("Purchase",
new XElement("PurchaseID", c.PurchaseId),
new XElement("UserID", c.UserId),
new XElement("Products", from n in c.PurchaseProducts
select new XElement("Product",
new XElement("ProductId", n.ProductId),
new XElement("Quantity", n.Quantity)))));
XDocument tmp = new XDocument(Purchases);
tmp.Save(filename);
}
}
public static void AddPurchase(Purchase purchase)
{
if (!ValidatePurchase(purchase))
{
throw new ArgumentException("invalid purchase fields");
}
using (ShopModel db = new ShopModel())
{
db.Purchases.Add(purchase);
foreach (var item in purchase.PurchaseProducts)
{
AddProductPosition(item, db);
}
db.SaveChanges();
}
}
public static void UpdatePurchase(Purchase itemtoupdate, Purchase itemupdated)
{
using (ShopModel db = new ShopModel())
{
Purchase tmp = FindPurchase(itemtoupdate.PurchaseId, db);
Console.WriteLine(tmp.UserId);
tmp.UserId = itemupdated.UserId;
tmp.Date = itemupdated.Date;
Console.WriteLine(tmp.UserId);
tmp.PurchaseProducts.Clear();
foreach (var productPosition in itemupdated.PurchaseProducts)
{
tmp.PurchaseProducts.Add(productPosition);
}
db.SaveChanges();
}
}
public static void RemoveProduct(int itemid)
{
using (ShopModel db = new ShopModel())
{
Product tmp = FindProduct(itemid, db);
List <PurchaseProduct> pptoremove = new List <PurchaseProduct>();
foreach (var item in tmp.PurchaseProducts)
{
pptoremove.Add(item);
}
foreach (var item in pptoremove)
{
db.PurchaseProducts.Remove(item);
}
db.Products.Remove(tmp);
db.SaveChanges();
}
}
private static void AddProductPosition(PurchaseProduct p, ShopModel db)
{
if (p == null)
{
return;
}
if (p.PurchaseId != 0)
{
throw new ArgumentException("you can't update other purchases using this method");
}
if (FindProduct(p.ProductId, db) == null)
{
throw new ArgumentException("Unknown product in purchase");
}
if (p.Quantity == null)
{
p.Quantity = 1;
}
db.PurchaseProducts.Add(p);
}
public static void UpdateProduct(int itemid, string newname = null, decimal?newprice = null, byte[] newimage = null, int?newcategory = null)
{
using (ShopModel db = new ShopModel())
{
Product tmp = FindProduct(itemid, db);
if (newname != null)
{
tmp.Name = newname;
}
if (newprice != null)
{
tmp.Price = newprice;
}
if (newimage != null)
{
tmp.Image = newimage;
}
if (newcategory != null)
{
tmp.Category = newcategory;
}
db.SaveChanges();
}
}
