public virtual ICollection FindByYear(int year)
{
SongList result = new SongList();
foreach (var song in songs)
{
if (song.song_year == year)
{
result.songs.Add(song);
}
}
if (result.ToList().Count < 1)
{
return(null);
}
return(result);
}
public static void FindBySongName(Catalog catalog, SearchQuery query)
{
if (query.song == null)
{
return;
}
List <ICollection> collections = new List <ICollection>();
if (query.result == null)
{
var song_names = catalog.songs_by_name.Keys.Where(x => x.Contains(query.song));
foreach (var song_name in song_names)
{
catalog.songs_by_name.TryGetValue(song_name, out SongList list);
SongList col = (SongList)list.FindBySongName(query.song);
if (col != null && col.ToList().Count > 0)
{
collections.Add(col);
}
}
}
else
{
foreach (var collection in query.result)
{
ICollection tmp = collection.FindBySongName(query.song);
if (tmp != null && tmp.ToList().Count > 0)
{
collections.Add(tmp);
}
}
}
query.result = collections;
if (query.result.Count == 0)
{
query.result = null;
}
}