/// <summary>
/// Creates a Song object reading its data from the file's ID3 tags and adds it to the database if it is not already present.
/// </summary>
/// <param name="filename">Path to any mp3 file. Other types of files are not rejected if a valid ID3 tag is found within them.</param>
public Song CreateFromFile(string filename)
{
Song song = (this.UseNewStandard) ? this.CreateFromNewId3Standard(filename) : this.CreateFromOldId3Standard(filename);
if (song != null)
{
int?duration = song.Duration;
song.Format = this.CreateFromAudioFrameHeader(filename, ref duration);
song.Duration = duration;
database.SaveChanges();
return(song);
}
else
{
song = this.CreateFromWaveTagger(filename);
}
if (song == null)
{
Song zeroInfoSong = database.Song.FindByName(GuessSongName(filename));
zeroInfoSong.Filename = filename;
return(zeroInfoSong);
}
return(song);
}
private void SaveIntoDatabase() //non qua, è un metodo generale, non riferito esclusivamente a echomanager
{
try
{
database.SaveChanges();
}
catch (System.Data.UpdateException ue)
{
database.DeleteObject(ue.StateEntries[0].Entity);
return;
}
}