protected AddRemoveDetailEntitiesViewModel(IUnitOfWorkFactory <TUnitOfWork> unitOfWorkFactory, Func <TUnitOfWork, IRepository <TEntity, TPrimaryKey> > getRepositoryFunc, Func <TUnitOfWork, IRepository <TDetailEntity, TDetailPrimaryKey> > getDetailsRepositoryFunc, Func <TEntity, ICollection <TDetailEntity> > getDetailsFunc, TPrimaryKey id)
: base(unitOfWorkFactory, getRepositoryFunc, null)
{
this.getDetailsRepositoryFunc = getDetailsRepositoryFunc;
this.getDetailsFunc = getDetailsFunc;
SelectedEntities = new ObservableCollection <TDetailEntity>();
if (this.IsInDesignMode())
{
return;
}
LoadEntityByKey(id);
Messenger.Default.Register(this, (EntityMessage <TDetailEntity, TDetailPrimaryKey> m) =>
{
if (m.MessageType != EntityMessageType.Added)
{
return;
}
var withParent = m.Sender as ISupportParentViewModel;
if (withParent == null || withParent.ParentViewModel != this)
{
return;
}
var withEntity = m.Sender as SingleObjectViewModel <TDetailEntity, TDetailPrimaryKey, TUnitOfWork>;
var detailEntity = DetailsRepository.Find(DetailsRepository.GetPrimaryKey(withEntity.Entity));
if (detailEntity == null)
{
return;
}
DetailEntities.Add(detailEntity);
SaveChangesAndNotify(new TDetailEntity[] { detailEntity });
});
}
public virtual void RemoveDetailEntities()
{
if (!SelectedEntities.Any())
{
return;
}
foreach (var selectedEntity in SelectedEntities)
{
DetailEntities.Remove(selectedEntity);
}
SaveChangesAndNotify(SelectedEntities);
SelectedEntities.Clear();
}
public virtual void AddDetailEntities()
{
var availalbleEntities = DetailsRepository.ToList().Except(DetailEntities).ToArray();
var selectEntitiesViewModel = new SelectDetailEntitiesViewModel <TDetailEntity>(availalbleEntities);
if (DialogService.ShowDialog(MessageButton.OKCancel, CommonResources.AddRemoveDetailEntities_SelectObjects, selectEntitiesViewModel) == MessageResult.OK && selectEntitiesViewModel.SelectedEntities.Any())
{
foreach (var selectedEntity in selectEntitiesViewModel.SelectedEntities)
{
DetailEntities.Add(selectedEntity);
}
SaveChangesAndNotify(selectEntitiesViewModel.SelectedEntities);
}
}
public virtual void RemoveDetailEntities()
{
if (!SelectedEntities.Any())
{
return;
}
var entities = SelectedEntities.ToList();
foreach (var e in entities)
{
SelectedEntities.Remove(e);
DetailEntities.Remove(e);
}
SaveChangesAndNotify(entities);
this.RaiseCanExecuteChanged(x => x.RemoveDetailEntities());
}
