def add_video_to_playlist(playlist_id, video_id):
"""add a video to the end of playlist
arguments:
playlist_id -- the id of the playlist
video_id -- the id of the video
"""
try:
playlist = PlayList.findPlaylistById(playlist_id)
if playlist is None:
raise DataLayerException({
'code': 404,
'message': 'No play list found'
})
video = Video.findVideoById(video_id)
if video is None:
raise DataLayerException({
'code': 404,
'message': 'No video found'
})
playlist.addVideo(video)
except ValueError as e:
response.status = 400
return json.dumps({'error': 'Bad Request'})
except DataLayerException as e:
response.status = e.errorArgs['code']
return json.dumps({'error': e.errorArgs['message']})
response.headers['Content-Type'] = 'application/json'
return json.dumps({'data': 'OK'})
def delete_playlist(id):
"""delete a playlist with id
arguments:
id -- the id of the playlist"""
try:
playlist = PlayList.findPlaylistById(id)
if playlist is None:
raise DataLayerException({
'code': 404,
'message': 'No play list found'
})
playlist.delete()
except ValueError as e:
response.status = 400
return json.dumps({'error': 'Bad Request'})
except DataLayerException as e:
response.status = e.errorArgs['code']
return json.dumps({'error': e.errorArgs['message']})
response.headers['Content-Type'] = 'application/json'
return json.dumps({'data': 'OK'})
def get_playlist_videos(id):
"""get the list of videos in playlist
arguments:
id -- the playlist id
return {
"data": [ video list ]
}
"""
try:
playlist = PlayList.findPlaylistById(id)
if playlist is None:
raise DataLayerException({
'code': 404,
'message': 'No play list found'
})
videos = playlist.getVideos()
except DataLayerException as e:
response.status = e.errorArgs['code']
return json.dumps({'error': e.errorArgs['message']})
response.headers['Content-Type'] = 'application/json'
return json.dumps({'data': map(lambda v: v.toJSONSerializable(), videos)})
def update_playlist(id):
"""update a playlist, it accept an json object as the body:
arguments:
id -- the playlist id
requset body: {
"name": "the new playlist name"
}
"""
try:
try:
data = request.json
except:
raise ValueError
if data is None:
raise ValueError
if data['name'] is None:
raise ValueError
playlist = PlayList.findPlaylistById(id)
if playlist is None:
raise DataLayerException({
'code': 404,
'message': 'No play list found'
})
playlist.name = data['name']
playlist.save()
except ValueError as e:
response.status = 400
return json.dumps({'error': 'Bad Request'})
except DataLayerException as e:
response.status = e.errorArgs['code']
return json.dumps({'error': e.errorArgs['message']})
response.headers['Content-Type'] = 'application/json'
return json.dumps({'data': playlist.toJSONSerializable()})
def get_playlist_info(id):
"""get the playlist information
arguments:
id -- the playlist id
return {
"data": { playlist object }
}"""
try:
playlist = PlayList.findPlaylistById(id)
if playlist is None:
raise DataLayerException({
'code': 404,
'message': 'No play list found'
})
except DataLayerException as e:
response.status = e.errorArgs['code']
return json.dumps({'error': e.errorArgs['message']})
response.headers['Content-Type'] = 'application/json'
return json.dumps({'data': playlist.toJSONSerializable()})