示例#1
0
def autocomplete():
    db_vals = []
    search = request.args.get('search[term]')
    #app.logger.debug(search)
    db_vals += db_session.query(Recs).filter(Recs.artist.ilike('%' + search + '%')).all()
    db_vals += db_session.query(Recs).filter(Recs.title.ilike('%' + search + '%')).all() 
    results = []
    for v in db_vals[:LIMIT]:
        results.append({"value": "%s, %s" %(v.artist, v.title), 
                        "id" : v.track_id,
                        "cluster" : v.cluster,
                        "cluster_new" : v.cluster_new})
    return Response(json.dumps(results))
示例#2
0
def get_recs(cluster_inputs, page, sort, ascdesc):
    if len(cluster_inputs) < 1:
        app.logger.debug("No selected songs")
        results = [{"value": "No songs selected"}]
        return results
    else:
        lim = int(LIMIT/len(cluster_inputs))
    db_vals = []
    for c in cluster_inputs:
        c_old = c[0]
        c_new = c[1]
        init_len = len(db_vals)
        db_vals += db_session.query(Recs).filter(Recs.cluster==c_old,
                   Recs.cluster_new==c_new, Recs.recommend==1) \
                   .order_by(getattr(getattr(Recs, sort), ascdesc)()) \
                   .slice(page*lim, page*lim+lim)
        mid_len = len(db_vals)
        #if not enough double match recs:
        if (mid_len - init_len) < lim:
            new_lim = lim - (mid_len - init_len)
            db_vals += db_session.query(Recs).filter(Recs.cluster!=c_old,
                   Recs.cluster_new==c_new, Recs.recommend==1) \
                   .order_by(getattr(getattr(Recs, sort), ascdesc)()) \
                   .slice(page*new_lim, (page*new_lim+new_lim))
        #if not enough new_rec recs:
        if (len(db_vals) - init_len) < lim:
            new_lim = lim - (len(db_vals) - init_len)
            db_vals += db_session.query(Recs).filter(Recs.cluster==c_old,
                   Recs.cluster_new!=c_new, Recs.recommend==1) \
                   .order_by(getattr(getattr(Recs, sort), ascdesc)()) \
                   .slice(page*new_lim, (page*new_lim+new_lim))
        #if not enough of either, repeat recs, but with random:
        if (len(db_vals) - init_len) < lim:
            new_lim = lim - (len(db_vals) - init_len)
            db_vals += db_session.query(Recs).filter((Recs.cluster==c_old) |
                   (Recs.cluster_new==c_new), Recs.recommend==1) \
                   .order_by(func.random()).limit(new_lim)
    results = []
    for v in db_vals:
        results.append({"value": "%s, %s" %(v.artist, v.title), 
                        "id" : v.track_id,
                        "cluster" : v.cluster,
                        "cluster_new": v.cluster_new})
    return results