Source code for soweego.importer.models.musicbrainz_entity

#!/usr/bin/env python3
# -*- coding: utf-8 -*-

"""`MusicBrainz <>`_
`SQLAlchemy <>`_ ORM entities,
based on the database
`specifications <>`_."""

__author__ = 'Massimo Frasson'
__email__ = ''
__version__ = '1.0'
__license__ = 'GPL-3.0'
__copyright__ = 'Copyleft 2019, MaxFrax96'

from sqlalchemy import Column, String
from sqlalchemy.ext.declarative import declarative_base

from soweego.importer.models.base_entity import BaseEntity, BaseRelationship
from soweego.importer.models.base_link_entity import BaseLinkEntity

BASE = declarative_base()

ARTIST_TABLE = 'musicbrainz_artist'
ARTIST_LINK_TABLE = 'musicbrainz_artist_link'
BAND_TABLE = 'musicbrainz_band'
BAND_LINK_TABLE = 'musicbrainz_band_link'
RELEASE_GROUP_TABLE = 'musicbrainz_release_group'
RELEASE_GROUP_LINK_TABLE = 'musicbrainz_release_group_link'

ARTIST_BAND_RELATIONSHIP_TABLE = 'musicbrainz_artist_band_relationship'

[docs]class MusicBrainzArtistEntity(BaseEntity): """A MusicBrainz *artist*, namely a musician. **Attributes:** - **gender** (string(10)) - a gender - **birth_place** (string(255)) - a birth place - **death_place** (string(255)) - a death place """ __tablename__ = ARTIST_TABLE __mapper_args__ = {'polymorphic_identity': __tablename__, 'concrete': True} gender = Column(String(10)) birth_place = Column(String(255), nullable=True) death_place = Column(String(255), nullable=True)
[docs]class MusicBrainzBandEntity(BaseEntity): """A MusicBrainz band. **Attributes:** - **birth_place** (string(255)) - a place where the band was formed - **death_place** (string(255)) - a place where the band was disbanded """ __tablename__ = BAND_TABLE __mapper_args__ = {'polymorphic_identity': __tablename__, 'concrete': True} birth_place = Column(String(255), nullable=True) death_place = Column(String(255), nullable=True)
[docs]class MusicBrainzArtistLinkEntity(BaseLinkEntity): """A MusicBrainz musician Web link (URL).""" __tablename__ = ARTIST_LINK_TABLE __mapper_args__ = {'polymorphic_identity': __tablename__, 'concrete': True}
[docs]class MusicBrainzBandLinkEntity(BaseLinkEntity): """A MusicBrainz band Web link (URL).""" __tablename__ = BAND_LINK_TABLE __mapper_args__ = {'polymorphic_identity': __tablename__, 'concrete': True}
[docs]class MusicBrainzReleaseGroupEntity(BaseEntity): """A MusicBrainz *release group*: a musical work, which is a group of *releases*. """ __tablename__ = RELEASE_GROUP_TABLE __mapper_args__ = {'polymorphic_identity': __tablename__, 'concrete': True}
[docs]class MusicBrainzReleaseGroupLinkEntity(BaseLinkEntity): """A MusicBrainz musical work Web link (URL).""" __tablename__ = RELEASE_GROUP_LINK_TABLE __mapper_args__ = {'polymorphic_identity': __tablename__, 'concrete': True}
# NOTICE: catalog IDs of this entity can be both artists and bands
[docs]class MusicBrainzArtistBandRelationship(BaseRelationship): """A membership between a MusicBrainz artist and a MusicBrainz band.""" __tablename__ = ARTIST_BAND_RELATIONSHIP_TABLE __mapper_args__ = {'polymorphic_identity': __tablename__, 'concrete': True} def __repr__(self): return super().__repr__()
[docs]class MusicBrainzReleaseGroupArtistRelationship(BaseRelationship): """A relationship between a MusicBrainz musical work and the MusicBrainz musician or band who made it. """ __tablename__ = RELEASE_ARTIST_RELATIONSHIP_TABLE __mapper_args__ = {'polymorphic_identity': __tablename__, 'concrete': True} def __repr__(self): return super().__repr__()