public void AddProduct(Product product, string code, string newName, double pp, double sp)
{
using (var context = new TerminalsDB())
{
if
(context.Products.Find(product.Code) == null ||
context.Products.Find(product.Name) == null)
{
product = new Product
{
Code = code,
Name = newName,
Prices = new List <ProductPrice>
{
new ProductPrice
{
SellingPrice = sp,
PurchasePrice = pp,
DateFrom = DateTime.Today
}
}
};
context.Products.Add(product);
context.SaveChanges();
ProductsChanged?.Invoke(product);
}
}
}
public void EditTerminal(VMachine vMachine, string newLocation)
{
using (var context = new TerminalsDB())
{
var terminalFromDB = context.VMachines.Find(vMachine.Id);
terminalFromDB.Location = newLocation;
context.SaveChanges();
VMChanged?.Invoke(terminalFromDB);
}
}
public void EditProduct(Product product, string newName)
{
using (var context = new TerminalsDB())
{
DateTime dt = DateTime.Today.AddDays(1);
var prodFromDB = context.Products.Find(product.Code);
prodFromDB.Name = newName;
context.SaveChanges();
ProductsChanged?.Invoke(prodFromDB);
}
}
public void DeleteProduct(Product product)
{
using (var context = new TerminalsDB())
{
if (context.VMachines.Any(vm => vm.Products.Any(p => p.Product.Code == product.Code)))
{
throw new Exception("This product cannot be deleted beacuse it is included into Terminal!");
}
var deletedProduct = context.Products.Include(p => p.Prices).First(p => p.Code == product.Code);
deletedProduct.Prices.Clear();
context.Products.Remove(deletedProduct);
context.SaveChanges();
}
}
public IEnumerable <UnpopularProdViewModel> UnpopularProducts(int year, int month)
{
using (var context = new TerminalsDB())
{
return(context.DailyStatistics
.Where(d => d.Date.Month == month && d.Date.Year == year)
.GroupBy(d => d.Product)
.Select(g => new UnpopularProdViewModel
{
Name = g.Key.Name,
QuantitySold = g.Sum(p => p.Quantity)
})
.OrderBy(p => p.QuantitySold)
.ToList().Take(5));
}
}
public void AddTerminal(string location)
{
using (var context = new TerminalsDB())
{
if (context.VMachines.Any(v => v.Location == location))
{
throw new Exception("Vending machine with this location already exists!");
}
var vMachine = new VMachine {
Location = location
};
vMachine.Money = DataForTerminal.GetMoney();
context.VMachines.Add(vMachine);
context.SaveChanges();
VMChanged?.Invoke(vMachine);
}
}
public void EditPrice(Product product, double sp, double pp, DateTime dt)
{
using (var context = new TerminalsDB())
{
var prodFromDB = context.Products.Find(product.Code);
if (product.LastPrice.SellingPrice != sp && product.LastPrice.PurchasePrice != pp)
{
prodFromDB.Prices = new List <ProductPrice>
{
new ProductPrice
{
PurchasePrice = pp,
SellingPrice = sp,
DateFrom = dt
}
};
context.SaveChanges();
ProductsChanged?.Invoke(prodFromDB);
}
}
}