public async Task <IActionResult> Edit(int id, [Bind("Id,Name")] FoodSupplier foodSupplier)
{
if (id != foodSupplier.Id)
{
return(NotFound());
}
if (ModelState.IsValid)
{
try
{
_context.Update(foodSupplier);
await _context.SaveChangesAsync();
}
catch (DbUpdateConcurrencyException)
{
if (!FoodSupplierExists(foodSupplier.Id))
{
return(NotFound());
}
else
{
throw;
}
}
return(RedirectToAction(nameof(Index)));
}
return(View(foodSupplier));
}
public async Task <IActionResult> Create([Bind("Id,Name")] FoodSupplier foodSupplier)
{
if (ModelState.IsValid)
{
_context.Add(foodSupplier);
await _context.SaveChangesAsync();
return(RedirectToAction(nameof(Index)));
}
return(View(foodSupplier));
}
public static IParsingStrategy GetParser(FoodSupplier supplier)
{
switch (supplier)
{
case FoodSupplier.Cafe:
return(new KafeParsingStrategy());
case FoodSupplier.Glagol:
return(new GlagolParsingStrategy());
default:
throw new ArgumentException();
}
}
public static void Memento()
{
//Here's a new supplier for our restaurant
FoodSupplier s = new FoodSupplier();
s.Name = "Harold Karstark";
s.Phone = "(482) 555-1172";
// Let's store that entry in our database.
SupplierMemory m = new SupplierMemory();
m.Memento = s.SaveMemento();
// Continue changing originator
s.Address = "548 S Main St. Nowhere, KS";
// Crap, gotta undo that entry, I entered the wrong address
s.RestoreMemento(m.Memento);
}
public FoodSupplierMemento(FoodSupplier supplier)
{
Name = supplier.Name;
Phone = supplier.Phone;
Address = supplier.Address;
}