public AdvertisementDetailViewModel(INewspaperAdRepository adRepository)
{
_adRepository = adRepository;
Newspapers = new ObservableCollection<NewspaperItemViewModel>();
Messenger.Default.Register<CurrentAdvertisementItemChangedMessage>(this, (message) =>
{
if (message.ItemViewModel != null)
{
ItemViewModel = message.ItemViewModel;
Name = ItemViewModel.Name;
Text = ItemViewModel.Text;
}
else
{
Name = Text = "";
}
RaisePropertyChanged(() => AllowSave);
});
Messenger.Default.Register<CurrentNewspaperItemChangedMessage>(this, (message) =>
{
_currentNewspaper = message.ItemViewModel;
});
AddItemCommand = new RelayCommand<RoutedEventArgs>(AddItemCommandHandler);
CancelItemCommand = new RelayCommand(CancelItemCommandHandler);
SaveItemCommand = new RelayCommand(SaveItemCommandHandler);
DeleteItemCommand = new RelayCommand(DeleteItemCommandHandler);
LinkToCurrentPaper = new RelayCommand(LinkToCurrentPaperHandler);
Messenger.Default.Send(new AdvertisementDetailViewModelReady());
}
private void AddingNewspaperItemMessageHandler(AddingNewspaperItemMessage message)
{
var model = new Newspaper();
var vm = new NewspaperItemViewModel(_adRepository) {Model = model};
Newspapers.Add(vm);
var sortedNewspapers = Newspapers.OrderBy(n => n.Name).ToList();
Newspapers.Clear();
sortedNewspapers.ForEach(Newspapers.Add);
Messenger.Default.Send(new CurrentNewspaperItemChangedMessage(vm));
}
private void SaveCommandHandler(NewspaperItemViewModel viewModel)
{
if (inSave)
return;
inSave = true;
_adRepository.Save(viewModel.Model);
var sortedList = Newspapers.OrderBy(n => n.Name).ToList();
Newspapers.Clear();
sortedList.ForEach(n => Newspapers.Add(n));
inSave = false;
}
public RemovingNewspaperItemMessage(NewspaperItemViewModel itemViewModel)
{
ItemViewModel = itemViewModel;
}