public static void FilterArtistsByAlbum(Album album)
{
//This method is used by the AddSong subwindow to assist the user in selecting Albums and Artists.
int artistID = album.ArtistID;
subWindowArtistList.Clear();
subWindowArtistList = CDCatalogManager.GetArtists().Where(art => art.ArtistID.Equals(artistID)).ToList();
subWindowAlbumList.Clear();
subWindowAlbumList = CDCatalogManager.GetAlbums().Where(alb => alb.ArtistID.Equals(artistID)).ToList();
}
public static bool addAlbumGo(string albumTitle, Artist artist, int albumRating, string year, List <TrackInfo> tracks, out string message)
{
//Verify Album input fields, then add the Album and all associated tracks to the model.
bool isValid = true;
message = "";
int yr = 0;
int doesAlbumExist = CDCatalogManager.GetAlbums().Where(a => a.AlbumTitle.Equals(albumTitle)).Where(a => a.ArtistID.Equals(artist.ArtistID)).Count();
if (!(doesAlbumExist == 0))
{
isValid = false;
message += "An album by this artist with this title already exists in the database.\n";
}
if (!int.TryParse(year, out yr))
{
isValid = false;
message += "Year must be an integer.\n";
}
if (isValid)
{
Song song = new Song();
Album album = new Album();
album.AlbumTitle = albumTitle;
album.ArtistID = artist.ArtistID;
album.Rating = albumRating;
album.Year = yr;
CDCatalogManager.AddAlbum(album);
foreach (TrackInfo t in tracks)
{
song = new Song();
song.AlbumID = album.AlbumID;
song.ArtistID = t.artist.ArtistID;
song.GenreID = t.genreID;
song.Rating = t.rating;
song.SongTitle = t.title;
song.TrackLength = t.tracklength;
song.TrackNumber = t.tracknum;
CDCatalogManager.AddSong(song);
}
}
return(isValid);
}
//The GetAll* methods are just local wrappers for the DB layer, to save the developer
//from having to type "CDCatalogManager." over and over again.
public static void GetAllAlbums()
{
filterAlbumList = CDCatalogManager.GetAlbums();
}
public static void AddSongsFillAlbums()
{
//Populate the Song list for subwindows.
subWindowAlbumList.Clear();
subWindowAlbumList = CDCatalogManager.GetAlbums();
}
