public AlbumListViewModel(Group group)
{
Title = ProfileService.StoredDisciple?.PreferName ?? "Welcome";
CurrentGroup = group;
LoadCommand = new Command(() => ExecuteLoadCommand());
MessagingCenter.Subscribe <Album>(this, "upsert", async album => {
album.GroupId = group.Id;
album = await dataService.UpsertAsync(album);
if (group.Albums == null)
{
group.Albums = new List <Album>();
}
group.Albums.Upsert(album);
Albums.Upsert(album);
OnPropertyChanged("HasAlbums");
OnPropertyChanged("NoAlbums");
});
MessagingCenter.Subscribe <Album>(this, "delete", async album => {
await dataService.Delete(album);
group.Albums.Remove(album);
Albums.Delete(album);
OnPropertyChanged("HasAlbums");
OnPropertyChanged("NoAlbums");
});
}
public AlbumListViewModel(Group group)
{
if (group == null)
{
throw new ApplicationException("No group set for album list");
}
Title = group.Name;
LoadCommand = new Command(() => {
if (IsBusy)
{
return;
}
IsBusy = true;
if (group == null)
{
IsBusy = false;
return;
}
try {
Albums.Clear();
group.Albums.ForEach(p => Albums.Add(p));
OnPropertyChanged("IsListEmpty");
} catch (Exception ex) {
Debug.WriteLine(ex);
} finally {
IsBusy = false;
}
});
MessagingCenter.Subscribe <Album>(this, "upsert", async album => {
album.GroupId = group.Id;
album = await dataService.UpsertAsync(album);
if (group.Albums == null)
{
group.Albums = new List <Album>();
}
group.Albums.Upsert(album);
Albums.Upsert(album);
OnPropertyChanged("IsListEmpty");
});
MessagingCenter.Subscribe <Album>(this, "delete", async album => {
await dataService.Delete(album);
group.Albums.Remove(album);
Albums.Delete(album);
OnPropertyChanged("IsListEmpty");
});
LoadCommand.Execute(null);
}
/// <summary>
/// Borra un archivo
/// </summary>
public bool Delete(MediaFileModel file)
{
bool deleted = Albums.Delete(file);
// Borra la entrada de las carpetas
if (!deleted)
{
deleted = Folders.Delete(file);
}
// Devuelve el valor que indica si se ha borrado
return(deleted);
}