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mirror of https://github.com/spl0k/supysonic.git synced 2024-12-22 17:06:17 +00:00
supysonic/db.py
2013-07-16 11:30:19 +02:00

389 lines
11 KiB
Python
Executable File

# coding: utf-8
import config
from sqlalchemy import create_engine, Table, Column, ForeignKey, func
from sqlalchemy import Integer, String, Boolean, DateTime
from sqlalchemy.orm import scoped_session, sessionmaker, relationship, backref
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.types import TypeDecorator, BINARY
from sqlalchemy.dialects.postgresql import UUID as pgUUID
import uuid, datetime, time
import os.path
class UUID(TypeDecorator):
"""Platform-somewhat-independent UUID type
Uses Postgresql's UUID type, otherwise uses BINARY(16),
should be more efficient than a CHAR(32).
Mix of http://stackoverflow.com/a/812363
and http://www.sqlalchemy.org/docs/core/types.html#backend-agnostic-guid-type
"""
impl = BINARY
def load_dialect_impl(self, dialect):
if dialect.name == 'postgresql':
return dialect.type_descriptor(pgUUID())
else:
return dialect.type_descriptor(BINARY(16))
def process_bind_param(self, value, dialect):
if value and isinstance(value, uuid.UUID):
if dialect.name == 'postgresql':
return str(value)
return value.bytes
if value and not isinstance(value, uuid.UUID):
raise ValueError, 'value %s is not a valid uuid.UUID' % value
return None
def process_result_value(self, value, dialect):
if value:
if dialect.name == 'postgresql':
return uuid.UUID(value)
return uuid.UUID(bytes = value)
return None
def is_mutable(self):
return False
@staticmethod
def gen_id_column():
return Column(UUID, primary_key = True, default = uuid.uuid4)
def now():
return datetime.datetime.now().replace(microsecond = 0)
engine = create_engine(config.get('base', 'database_uri'), convert_unicode = True)
session = scoped_session(sessionmaker(autocommit = False, autoflush = False, bind = engine))
Base = declarative_base()
Base.query = session.query_property()
class User(Base):
__tablename__ = 'user'
id = UUID.gen_id_column()
name = Column(String(64), unique = True)
mail = Column(String(256))
password = Column(String(40))
salt = Column(String(6))
admin = Column(Boolean, default = False)
lastfm_session = Column(String(32), nullable = True)
lastfm_status = Column(Boolean, default = True) # True: ok/unlinked, False: invalid session
last_play_id = Column(UUID, ForeignKey('track.id'), nullable = True)
last_play = relationship('Track')
last_play_date = Column(DateTime, nullable = True)
def as_subsonic_user(self):
return {
'username': self.name,
'email': self.mail,
'scrobblingEnabled': self.lastfm_session is not None and self.lastfm_status,
'adminRole': self.admin,
'settingsRole': True,
'downloadRole': True,
'uploadRole': False,
'playlistRole': True,
'coverArtRole': False,
'commentRole': False,
'podcastRole': False,
'streamRole': True,
'jukeboxRole': False,
'shareRole': False
}
class Folder(Base):
__tablename__ = 'folder'
id = UUID.gen_id_column()
root = Column(Boolean, default = False)
name = Column(String(256))
path = Column(String(4096)) # should be unique, but mysql don't like such large columns
created = Column(DateTime, default = now)
has_cover_art = Column(Boolean, default = False)
last_scan = Column(Integer, default = 0)
parent_id = Column(UUID, ForeignKey('folder.id'), nullable = True)
children = relationship('Folder', backref = backref('parent', remote_side = [ id ]))
def as_subsonic_child(self, user):
info = {
'id': str(self.id),
'isDir': True,
'title': self.name,
'album': self.name,
'created': self.created.isoformat()
}
if not self.root:
info['parent'] = str(self.parent_id)
info['artist'] = self.parent.name
if self.has_cover_art:
info['coverArt'] = str(self.id)
starred = StarredFolder.query.get((user.id, self.id))
if starred:
info['starred'] = starred.date.isoformat()
rating = RatingFolder.query.get((user.id, self.id))
if rating:
info['userRating'] = rating.rating
avgRating = RatingFolder.query.filter(RatingFolder.rated_id == self.id).value(func.avg(RatingFolder.rating))
if avgRating:
info['averageRating'] = avgRating
return info
class Artist(Base):
__tablename__ = 'artist'
id = UUID.gen_id_column()
name = Column(String(256), unique = True)
albums = relationship('Album', backref = 'artist')
def as_subsonic_artist(self, user):
info = {
'id': str(self.id),
'name': self.name,
# coverArt
'albumCount': len(self.albums)
}
starred = StarredArtist.query.get((user.id, self.id))
if starred:
info['starred'] = starred.date.isoformat()
return info
class Album(Base):
__tablename__ = 'album'
id = UUID.gen_id_column()
name = Column(String(256))
artist_id = Column(UUID, ForeignKey('artist.id'))
tracks = relationship('Track', backref = 'album')
def as_subsonic_album(self, user):
info = {
'id': str(self.id),
'name': self.name,
'artist': self.artist.name,
'artistId': str(self.artist_id),
'songCount': len(self.tracks),
'duration': sum(map(lambda t: t.duration, self.tracks)),
'created': min(map(lambda t: t.created, self.tracks)).isoformat()
}
if self.tracks[0].folder.has_cover_art:
info['coverArt'] = str(self.tracks[0].folder_id)
starred = StarredAlbum.query.get((user.id, self.id))
if starred:
info['starred'] = starred.date.isoformat()
return info
def sort_key(self):
year = min(map(lambda t: t.year if t.year else 9999, self.tracks))
return '%i%s' % (year, self.name.lower())
class Track(Base):
__tablename__ = 'track'
id = UUID.gen_id_column()
disc = Column(Integer)
number = Column(Integer)
title = Column(String(256))
year = Column(Integer, nullable = True)
genre = Column(String(256), nullable = True)
duration = Column(Integer)
album_id = Column(UUID, ForeignKey('album.id'))
bitrate = Column(Integer)
path = Column(String(4096)) # should be unique, but mysql don't like such large columns
created = Column(DateTime, default = now)
last_modification = Column(Integer)
play_count = Column(Integer, default = 0)
last_play = Column(DateTime, nullable = True)
root_folder_id = Column(UUID, ForeignKey('folder.id'))
root_folder = relationship('Folder', primaryjoin = Folder.id == root_folder_id)
folder_id = Column(UUID, ForeignKey('folder.id'))
folder = relationship('Folder', primaryjoin = Folder.id == folder_id, backref = 'tracks')
def as_subsonic_child(self, user):
info = {
'id': str(self.id),
'parent': str(self.folder.id),
'isDir': False,
'title': self.title,
'album': self.album.name,
'artist': self.album.artist.name,
'track': self.number,
'size': os.path.getsize(self.path),
'contentType': 'audio/mpeg', # we only know how to read mp3s
'suffix': 'mp3', # same as above
'duration': self.duration,
'bitRate': self.bitrate,
'path': self.path[len(self.root_folder.path) + 1:],
'isVideo': False,
'discNumber': self.disc,
'created': self.created.isoformat(),
'albumId': str(self.album.id),
'artistId': str(self.album.artist.id),
'type': 'music'
}
if self.year:
info['year'] = self.year
if self.genre:
info['genre'] = self.genre
if self.folder.has_cover_art:
info['coverArt'] = str(self.folder_id)
starred = StarredTrack.query.get((user.id, self.id))
if starred:
info['starred'] = starred.date.isoformat()
rating = RatingTrack.query.get((user.id, self.id))
if rating:
info['userRating'] = rating.rating
avgRating = RatingTrack.query.filter(RatingTrack.rated_id == self.id).value(func.avg(RatingTrack.rating))
if avgRating:
info['averageRating'] = avgRating
# transcodedContentType
# transcodedSuffix
return info
def duration_str(self):
ret = '%02i:%02i' % ((self.duration % 3600) / 60, self.duration % 60)
if self.duration >= 3600:
ret = '%02i:%s' % (self.duration / 3600, ret)
return ret
def sort_key(self):
return (self.album.artist.name + self.album.name + ("%02i" % self.disc) + ("%02i" % self.number) + self.title).lower()
class StarredFolder(Base):
__tablename__ = 'starred_folder'
user_id = Column(UUID, ForeignKey('user.id'), primary_key = True)
starred_id = Column(UUID, ForeignKey('folder.id'), primary_key = True)
date = Column(DateTime, default = now)
user = relationship('User')
starred = relationship('Folder')
class StarredArtist(Base):
__tablename__ = 'starred_artist'
user_id = Column(UUID, ForeignKey('user.id'), primary_key = True)
starred_id = Column(UUID, ForeignKey('artist.id'), primary_key = True)
date = Column(DateTime, default = now)
user = relationship('User')
starred = relationship('Artist')
class StarredAlbum(Base):
__tablename__ = 'starred_album'
user_id = Column(UUID, ForeignKey('user.id'), primary_key = True)
starred_id = Column(UUID, ForeignKey('album.id'), primary_key = True)
date = Column(DateTime, default = now)
user = relationship('User')
starred = relationship('Album')
class StarredTrack(Base):
__tablename__ = 'starred_track'
user_id = Column(UUID, ForeignKey('user.id'), primary_key = True)
starred_id = Column(UUID, ForeignKey('track.id'), primary_key = True)
date = Column(DateTime, default = now)
user = relationship('User')
starred = relationship('Track')
class RatingFolder(Base):
__tablename__ = 'rating_folder'
user_id = Column(UUID, ForeignKey('user.id'), primary_key = True)
rated_id = Column(UUID, ForeignKey('folder.id'), primary_key = True)
rating = Column(Integer)
user = relationship('User')
rated = relationship('Folder')
class RatingTrack(Base):
__tablename__ = 'rating_track'
user_id = Column(UUID, ForeignKey('user.id'), primary_key = True)
rated_id = Column(UUID, ForeignKey('track.id'), primary_key = True)
rating = Column(Integer)
user = relationship('User')
rated = relationship('Track')
class ChatMessage(Base):
__tablename__ = 'chat_message'
id = UUID.gen_id_column()
user_id = Column(UUID, ForeignKey('user.id'))
time = Column(Integer, default = lambda: int(time.time()))
message = Column(String(512))
user = relationship('User')
def responsize(self):
return {
'username': self.user.name,
'time': self.time * 1000,
'message': self.message
}
playlist_track_assoc = Table('playlist_track', Base.metadata,
Column('playlist_id', UUID, ForeignKey('playlist.id')),
Column('track_id', UUID, ForeignKey('track.id'))
)
class Playlist(Base):
__tablename__ = 'playlist'
id = UUID.gen_id_column()
user_id = Column(UUID, ForeignKey('user.id'))
name = Column(String(256))
comment = Column(String(256), nullable = True)
public = Column(Boolean, default = False)
created = Column(DateTime, default = now)
user = relationship('User')
tracks = relationship('Track', secondary = playlist_track_assoc)
def as_subsonic_playlist(self, user):
info = {
'id': str(self.id),
'name': self.name if self.user_id == user.id else '[%s] %s' % (self.user.name, self.name),
'owner': self.user.name,
'public': self.public,
'songCount': len(self.tracks),
'duration': sum(map(lambda t: t.duration, self.tracks)),
'created': self.created.isoformat()
}
if self.comment:
info['comment'] = self.comment
return info
def init_db():
Base.metadata.create_all(bind = engine)
def recreate_db():
Base.metadata.drop_all(bind = engine)
Base.metadata.create_all(bind = engine)