public void Delete(Location entity)
{
if (entity == null)
{
throw new ArgumentNullException(nameof(entity));
}
// Ensure the location exists.
// GetById will throw an exception for us
entity = GetById(entity.Id);
// Remove all orders that were placed at this location
// from the order table
List <Order> orderList = Database.Order
.Where(o => o.LocationId == entity.Id).ToList();
// Using OrderRepo for cascading removal
OrderRepository orderRepo = new OrderRepository(Database);
foreach (var order in orderList)
{
orderRepo.Delete(order);
}
// Reset any users default locations that refer to
// this location.
List <User> userList = Database.User
.Where(u => u.DefaultLocationId == entity.Id).ToList();
foreach (var user in userList)
{
// Reset the default location
user.DefaultLocationId = null;
// Update the user in the User table
UserRepository userRepo = new UserRepository(Database);
userRepo.Update(user);
}
// Need to remove all InventoryJunction entries
// that refer to this location
List <InventoryJunction> inventoryList = Database.InventoryJunction
.Where(inv => inv.LocationId == entity.Id).ToList();
InventoryJunctionRepository inventoryRepo = new InventoryJunctionRepository(Database);
foreach (var inventoryJunction in inventoryList)
{
inventoryRepo.Delete(inventoryJunction);
}
// We can now safely remove the location
Database.Remove(entity);
}
public void Delete(Ingredient entity)
{
if (entity == null)
{
throw new ArgumentNullException(nameof(entity));
}
// Ensure the entity exists within the
// database. GetById will throw an
// exception for us if it does not
entity = GetById(entity.Id);
// Need to remove ingredient from the InventoryJunction
// and PizzaJunction tables
// Find all InventoryJunctions that contain this ingredient
List <InventoryJunction> inventoryList = Database.InventoryJunction
.Where(inv => inv.IngredientId == entity.Id).ToList();
// For each inventory with ingredient in it, remove
// it from the InventoryJunction table
InventoryJunctionRepository inventoryRepo = new InventoryJunctionRepository(Database);
foreach (var inventoryJunction in inventoryList)
{
inventoryRepo.Delete(inventoryJunction);
}
// Now do the same for the PizzaJunction table
List <PizzaJunction> pizzaList = Database.PizzaJunction
.Where(pizza => pizza.IngredientId == entity.Id).ToList();
PizzaJunctionRepository pizzaRepo = new PizzaJunctionRepository(Database);
foreach (var pizzaJunction in pizzaList)
{
pizzaRepo.Delete(pizzaJunction);
}
Database.Remove(GetById(entity.Id));
}