public override Task AddPlayCount(string songPath)
{
return(TaskEx.Run(() => {
MusicDataContext.WithSubmit(db => {
var currentEntry = from PlayFrequency playFreq in db.PlayFrequencies
where playFreq.SongPath == songPath
select playFreq;
if (currentEntry.Any())
{
// if the entry already exists
foreach (PlayFrequency pf in currentEntry)
{
pf.PlayCount = pf.PlayCount + 1;
}
}
else
{
// if it doesn't exist
var newEntry = new PlayFrequency()
{
SongPath = songPath, PlayCount = 1
};
db.PlayFrequencies.InsertOnSubmit(newEntry);
}
});
}));
}
public static void SetPlaylist(PlaylistTrack track)
{
MusicDataContext.WithSubmit(db => {
Clear(db);
Add(db, track);
SetIndex(db, 0);
});
}
/// <summary>
/// http://stackoverflow.com/questions/2801500/linq-display-row-numbers
/// </summary>
/// <param name="index"></param>
public static void Delete(int index)
{
MusicDataContext.WithSubmit(db => {
var songs = (from PlaylistItem song in db.Playlist orderby song.ItemId select song)
.AsEnumerable();
if (songs != null && songs.Count() > index)
{
var song = songs.ElementAt(index);
db.Playlist.DeleteOnSubmit(song);
}
});
}
public override Task DeleteSongEntry(string songPath)
{
return(TaskEx.Run(() => {
MusicDataContext.WithSubmit(db => {
var entry = from PlayFrequency playFreq in db.PlayFrequencies
where playFreq.SongPath == songPath
select playFreq;
foreach (PlayFrequency pf in entry)
{
db.PlayFrequencies.DeleteOnSubmit(pf);
}
});
}));
}
public static PlaylistTrack Previous()
{
return(MusicDataContext.WithSubmit(db => {
var index = Index(db);
var tracks = Tracks(db);
if (index > 0 && tracks.Count > --index)
{
var track = tracks[index];
SetIndex(db, index);
return track;
}
else
{
return null;
}
}));
}
public static void SetIndex(int newIndex)
{
MusicDataContext.WithSubmit(db => {
SetIndex(db, newIndex);
});
}
public static void AddAll(IEnumerable <PlaylistTrack> tracks)
{
MusicDataContext.WithSubmit(db => {
Add(db, tracks);
});
}
public static void Clear()
{
MusicDataContext.WithSubmit(db => {
Clear(db);
});
}
