def nav_home():
"""
Main Home page route, shows the user playlist songs.
If user has no playlist, show no songs nor initial songs.
If there is a 'random' key in the querystring, makes call to the either gets 10 random songs with 'song_songs_get_all()',
Then, If user selected one song (that is, a song data is on the query string), add it to the playlist.
"""
if 'username' in session:
# If there is a 'random' query string key, get the 10 random songs.
if request.args.has_key('random'):
session['playlist'] = []
for music in DbFunct.song_songs_get_all(random=True, limit=config.random_songs_number):
session['playlist'].append({'artist': music.artist , 'album': music.album, 'title': music.title})
session.modified = True
list = session['playlist']
# If a song was passed by arguments, add it at the beginning of the playlist.
args_has_song = request.args.has_key('artist') and request.args.has_key('album') and request.args.has_key('title')
if args_has_song:
# Todo: check for SQL injection.
# Check if the song in arguments in on DB.
args_song = DbFunct.song_data_get(request.args.get('artist'), request.args.get('album'), request.args.get('title'))
if args_song is not None:
# this change is not picked up because a mutable object (here a list) is changed.
list.insert(0, {
'artist': args_song.artist, 'album': args_song.album, 'title': args_song.title
})
# so mark it as modified yourself
session.modified = True
print "home list: {list}".format(list=list)
# Check if there is a 1st song.
if not session['playlist']:
initial_song = None
else:
# Get the first song from the list.
initial_song = DbFunct.song_data_get(list[0]['artist'], list[0]['album'], list[0]['title'])
return render_template('home.html', music=initial_song, music_list=list, username=session['username'])
else:
return redirect(url_for('nav_login'))
