internal void RemoveModifierItem(ModifierItemModel modifierItem)
{
modifierItem.Parent = null;
modifiers.Remove(modifierItem);
if (parent != null)
{
parent.RebuildItems();
}
}
internal void AddModifierItem(ModifierItemModel modifierItem)
{
modifierItem.Parent = this;
modifiers.Add(modifierItem);
if (parent != null)
{
parent.RebuildItems();
}
}
private void ButtonAddModifierItemClick(object sender, RoutedEventArgs e)
{
var selectedItem = lstModifiers.SelectedItem;
if (selectedItem == null)
{
return;
}
IProduct modifierDish;
bool isChildModifier;
var childModifier = selectedItem as IChildModifier;
if (childModifier != null)
{
Debug.Assert(childModifier.Product.Type == ProductType.Modifier);
modifierDish = childModifier.Product;
isChildModifier = true;
}
else
{
var simpleModifier = (ISimpleModifier)selectedItem;
modifierDish = simpleModifier.Product;
isChildModifier = false;
}
var selectedProductItem = GetSelectedProductItem();
Debug.Assert(selectedProductItem != null);
var existingModifier = selectedProductItem.Children
.SingleOrDefault(m => m.IsChildModifier == isChildModifier && m.Dish.Id == modifierDish.Id);
if (existingModifier != null)
{
existingModifier.Amount++;
}
else
{
var modifierItemModel = new ModifierItemModel
{
Dish = modifierDish,
Amount = 1,
IsChildModifier = isChildModifier
};
selectedProductItem.AddModifierItem(modifierItemModel);
}
}
public ProductItemModel([NotNull] IPreliminaryOrderProductItem productItem)
: this(productItem.Dish, productItem.Amount, productItem.ProductSize)
{
Debug.Assert(productItem != null);
modifiers.Clear();
foreach (var modifier in productItem.Modifiers)
{
var modifierItemModel = new ModifierItemModel();
modifierItemModel.Update(modifier);
modifierItemModel.Parent = this;
modifiers.Add(modifierItemModel);
}
}
