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101 lines
2.5 KiB
Python
Executable File
101 lines
2.5 KiB
Python
Executable File
# coding: utf-8
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import config
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from sqlalchemy import create_engine, Column, ForeignKey
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from sqlalchemy import Integer, String, Boolean, DateTime, Time
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from sqlalchemy.orm import scoped_session, sessionmaker, relationship, backref
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from sqlalchemy.ext.declarative import declarative_base
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from sqlalchemy.types import TypeDecorator
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from sqlalchemy import BINARY
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import uuid
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class UUID(TypeDecorator):
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impl = BINARY
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def __init__(self):
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self.impl.length = 16
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TypeDecorator.__init__(self, length = self.impl.length)
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def process_bind_param(self, value, dialect = None):
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if value and isinstance(value, uuid.UUID):
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return value.bytes
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if value and not isinstance(value, uuid.UUID):
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raise ValueError, 'value %s is not a valid uuid.UUID' % value
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return None
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def process_result_value(self, value, dialect = None):
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if value:
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return uuid.UUID(bytes = value)
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return None
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def is_mutable(self):
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return False
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@staticmethod
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def gen_id_column():
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return Column(UUID, primary_key = True, default = uuid.uuid4)
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engine = create_engine(config.get('DATABASE_URI'), convert_unicode = True)
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session = scoped_session(sessionmaker(autocommit = False, autoflush = False, bind = engine))
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Base = declarative_base()
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Base.query = session.query_property()
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class User(Base):
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__tablename__ = 'user'
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id = UUID.gen_id_column()
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name = Column(String, unique = True)
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mail = Column(String)
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password = Column(String(40))
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salt = Column(String(6))
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admin = Column(Boolean)
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class MusicFolder(Base):
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__tablename__ = 'folder'
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id = UUID.gen_id_column()
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name = Column(String, unique = True)
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path = Column(String)
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last_scan = Column(DateTime, nullable = True)
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class Artist(Base):
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__tablename__ = 'artist'
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id = UUID.gen_id_column()
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name = Column(String, unique = True)
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albums = relationship('Album', backref = 'artist')
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class Album(Base):
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__tablename__ = 'album'
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id = UUID.gen_id_column()
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name = Column(String)
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artist_id = Column(UUID, ForeignKey('artist.id'))
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tracks = relationship('Track', backref = 'album')
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class Track(Base):
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__tablename__ = 'track'
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id = UUID.gen_id_column()
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disc = Column(Integer)
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number = Column(Integer)
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title = Column(String)
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duration = Column(Time)
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album_id = Column(UUID, ForeignKey('album.id'))
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path = Column(String, unique = True)
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folder_id = Column(UUID, ForeignKey('folder.id'))
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folder = relationship('MusicFolder')
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def init_db():
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Base.metadata.create_all(bind = engine)
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def recreate_db():
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Base.metadata.drop_all(bind = engine)
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Base.metadata.create_all(bind = engine)
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