public void Delete(ProductLineEntity productLine)
{
if (productLine == null)
{
throw new ArgumentNullException(nameof(productLine), $"{nameof(productLine)} is null.");
}
// We'll have to delete the whole graph so first the related entities, then the main entity.
// Let's use a Unit of work here for that.
var uow = new UnitOfWork2();
uow.AddCollectionForDelete(productLine.Products);
uow.AddForDelete(productLine);
using (var adapter = new DataAccessAdapter())
{
uow.Commit(adapter);
}
}
public override void UpdateGraphWithChildDeletes(ProductLineEntity productLine)
{
if (productLine == null)
{
throw new ArgumentNullException(nameof(productLine), $"{nameof(productLine)} is null.");
}
// this update method will update the related products. Any removed product has to be removed as it's orphaned.
// we inserted a removal tracker in the productline entity to track these, so we can just delete them from
// this collection. We also have to update the entity and related entities. We'll use a unit of work object
// for this to have easy transaction management.
var uow = new UnitOfWork2();
uow.AddForSave(productLine);
uow.AddCollectionForDelete(productLine.Products.RemovedEntitiesTracker);
using (var adapter = new DataAccessAdapter())
{
uow.Commit(adapter);
}
}
