meta.py 文件源码

def tag(name=None):
    sort_by = request.args.get('sort_by')

    if sort_by == 'play_count':
        sort_by = [Artist.playcount.desc()]
    elif sort_by == 'local_play_count':
        sort_by = [Artist.local_playcount.desc()]
    elif sort_by == 'tag_strength':
        sort_by = [desc('strength')]
    else:
        sort_by = [desc('strength'), Artist.local_playcount.desc()]

    name = name.lower()

    top_artists = (
        db.session.query(Artist.name, Artist.tags[name].cast(Integer).label('strength'), Artist.local_playcount, Artist.playcount)
        .filter(Artist.tags.has_key(name))
        .order_by(*sort_by)
        .all()
    )

    top_artists = enumerate(top_artists, start=1)

    return render_template(
        'meta/tag.html',
        tag=tag,
        top_artists=top_artists,
    )