From: kaliko Date: Mon, 3 May 2021 11:40:49 +0000 (+0200) Subject: Use new sqlite module X-Git-Tag: 0.18.0~65 X-Git-Url: https://git.kaliko.me/?a=commitdiff_plain;ds=sidebyside;h=e8b1bae0a5ff4fcbe9a2d206f6c22b33f3ab7740;p=mpd-sima.git Use new sqlite module --- diff --git a/sima/lib/db.py b/sima/lib/db.py deleted file mode 100644 index ca2277d..0000000 --- a/sima/lib/db.py +++ /dev/null @@ -1,684 +0,0 @@ -# Copyright (c) 2009-2013, 2019-2021 kaliko -# -# This file is part of sima -# -# sima is free software: you can redistribute it and/or modify -# it under the terms of the GNU General Public License as published by -# the Free Software Foundation, either version 3 of the License, or -# (at your option) any later version. -# -# sima is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with sima. If not, see . -# -# -"""SQlite database library -""" - -__DB_VERSION__ = 4 -__HIST_DURATION__ = int(30 * 24) # in hours - -import sqlite3 - -from collections import deque -from datetime import (datetime, timedelta) - -from sima.lib.meta import Artist, Album -from sima.lib.track import Track - - -class SimaDBError(Exception): - """ - Exceptions. - """ - - -class SimaDB: - "SQLite management" - - def __init__(self, db_path=None): - self._db_path = db_path - - def get_database_connection(self): - """get database reference""" - connection = sqlite3.connect( - self._db_path, isolation_level=None) - return connection - - def create_db(self): - """ Set up a database - """ - connection = self.get_database_connection() - connection.execute( - 'CREATE TABLE IF NOT EXISTS db_info' - ' (name CHAR(50), value CHAR(50))') - connection.execute('''INSERT INTO db_info (name, value) SELECT ?, ? - WHERE NOT EXISTS - ( SELECT 1 FROM db_info WHERE name = ? )''', - ('DB Version', __DB_VERSION__, 'DB Version')) - connection.execute( # ARTISTS - 'CREATE TABLE IF NOT EXISTS artists (id INTEGER PRIMARY KEY, ' - 'name VARCHAR(100), mbid CHAR(36))') - connection.execute( # ALBUMS - 'CREATE TABLE IF NOT EXISTS albums (id INTEGER PRIMARY KEY, ' - 'name VARCHAR(100), mbid CHAR(36))') - connection.execute( # ALBUMARTISTS - 'CREATE TABLE IF NOT EXISTS albumartists (id INTEGER PRIMARY KEY, ' - 'name VARCHAR(100), mbid CHAR(36))') - connection.execute( # TRACKS - 'CREATE TABLE IF NOT EXISTS tracks (id INTEGER PRIMARY KEY, ' - 'title VARCHAR(100), artist INTEGER, ' - 'album INTEGER, albumartist INTEGER, ' - 'file VARCHAR(500), mbid CHAR(36), ' - 'FOREIGN KEY(artist) REFERENCES artists(id), ' - 'FOREIGN KEY(album) REFERENCES albums(id), ' - 'FOREIGN KEY(albumartist) REFERENCES albumartists(id))') - connection.execute( # HISTORY - 'CREATE TABLE IF NOT EXISTS history (id INTEGER PRIMARY KEY, ' - 'last_play TIMESTAMP, track INTEGER, ' - 'FOREIGN KEY(track) REFERENCES tracks(id))') - connection.execute( # BLOCKLIST - 'CREATE TABLE IF NOT EXISTS blocklist (id INTEGER PRIMARY KEY, ' - 'artist INTEGER, album INTEGER, track INTEGER, ' - 'FOREIGN KEY(artist) REFERENCES artists(id), ' - 'FOREIGN KEY(album) REFERENCES albums(id), ' - 'FOREIGN KEY(track) REFERENCES tracks(id))') - connection.execute( # Genres (Many-to-many) - 'CREATE TABLE IF NOT EXISTS genres ' - '(id INTEGER PRIMARY KEY, name VARCHAR(100))') - connection.execute( # Junction Genres Tracks - """CREATE TABLE IF NOT EXISTS tracks_genres - ( track INTEGER, genre INTEGER, - FOREIGN KEY(track) REFERENCES tracks(id) - FOREIGN KEY(genre) REFERENCES genres(id))""") - # Create cleanup triggers: - # DELETE history → Tracks / Tracks_genres tables - connection.execute(''' - CREATE TRIGGER IF NOT EXISTS del_history_cleanup_tracks - AFTER DELETE ON history - WHEN ((SELECT count(*) FROM history WHERE track=old.track) = 0 AND - (SELECT count(*) FROM blocklist WHERE track=old.track) = 0) - BEGIN - DELETE FROM tracks WHERE id = old.track; - DELETE FROM tracks_genres WHERE track = old.track; - END; - ''') - # DELETE Tracks_Genres → Genres table - connection.execute(''' - CREATE TRIGGER IF NOT EXISTS del_tracks_genres_cleanup_genres - AFTER DELETE ON tracks_genres - WHEN ((SELECT count(*) FROM tracks_genres WHERE genre=old.genre) = 0) - BEGIN - DELETE FROM genres WHERE id = old.genre; - END; - ''') - # DELETE Tracks → Artists table - connection.execute(''' - CREATE TRIGGER IF NOT EXISTS del_tracks_cleanup_artists - AFTER DELETE ON tracks - WHEN ((SELECT count(*) FROM tracks WHERE artist=old.artist) = 0 AND - (SELECT count(*) FROM blocklist WHERE artist=old.artist) = 0) - BEGIN - DELETE FROM artists WHERE id = old.artist; - END; - ''') - # DELETE Tracks → Albums table - connection.execute(''' - CREATE TRIGGER IF NOT EXISTS del_tracks_cleanup_albums - AFTER DELETE ON tracks - WHEN ((SELECT count(*) FROM tracks WHERE album=old.album) = 0 AND - (SELECT count(*) FROM blocklist WHERE album=old.album) = 0) - BEGIN - DELETE FROM albums WHERE id = old.album; - END; - ''') - # DELETE Tracks → cleanup AlbumArtists table - connection.execute(''' - CREATE TRIGGER IF NOT EXISTS del_tracks_cleanup_albumartists - AFTER DELETE ON tracks - WHEN ((SELECT count(*) FROM tracks WHERE albumartist=old.albumartist) = 0) - BEGIN - DELETE FROM albumartists WHERE id = old.albumartist; - END; - ''') - # DELETE blocklist → Tracks table - connection.execute(''' - CREATE TRIGGER IF NOT EXISTS del_blocklist_cleanup_tracks - AFTER DELETE ON blocklist - WHEN ((SELECT count(*) FROM history WHERE track=old.track) = 0 AND - (SELECT count(*) FROM blocklist WHERE track=old.track) = 0) - BEGIN - DELETE FROM tracks WHERE id = old.track; - END; - ''') - # DELETE blocklist → Artists table - # The "SELECT count(*) FROM blocklist" is useless, - # there can be only one blocklist.artist - connection.execute(''' - CREATE TRIGGER IF NOT EXISTS del_blocklist_cleanup_artists - AFTER DELETE ON blocklist - WHEN ((SELECT count(*) FROM tracks WHERE artist=old.artist) = 0 AND - (SELECT count(*) FROM blocklist WHERE artist=old.artist) = 0) - BEGIN - DELETE FROM artists WHERE id = old.artist; - END; - ''') - # DELETE Tracks → Albums table - # The "SELECT count(*) FROM blocklist" is useless, - # there can be only one blocklist.album - connection.execute(''' - CREATE TRIGGER IF NOT EXISTS del_blocklist_cleanup_albums - AFTER DELETE ON blocklist - WHEN ((SELECT count(*) FROM tracks WHERE album=old.album) = 0 AND - (SELECT count(*) FROM blocklist WHERE album=old.album) = 0) - BEGIN - DELETE FROM albums WHERE id = old.album; - END; - ''') - connection.close() - - def drop_all(self): - connection = self.get_database_connection() - rows = connection.execute( - "SELECT name FROM sqlite_master WHERE type='table'") - for r in rows.fetchall(): - connection.execute(f'DROP TABLE IF EXISTS {r[0]}') - connection.close() - - def _remove_blocklist_id(self, blid, with_connection=None): - """Remove id""" - if with_connection: - connection = with_connection - else: - connection = self.get_database_connection() - connection = self.get_database_connection() - connection.execute('DELETE FROM blocklist' - ' WHERE blocklist.id = ?', (blid,)) - connection.commit() - if not with_connection: - connection.close() - - def _get_album(self, album, connection): - if album.mbid: - return connection.execute( - "SELECT id FROM albums WHERE mbid = ?", - (album.mbid,)) - else: - return connection.execute( - "SELECT id FROM albums WHERE name = ? AND mbid IS NULL", - (album.name,)) - - def get_album(self, album, with_connection=None, add=True): - """get album information from the database. - if not in database insert new entry. - - :param sima.lib.meta.Album album: album objet - :param sqlite3.Connection with_connection: SQLite connection - """ - if with_connection: - connection = with_connection - else: - connection = self.get_database_connection() - rows = self._get_album(album, connection) - for row in rows: - if not with_connection: - connection.close() - return row[0] - if not add: - if not with_connection: - connection.close() - return None - connection.execute( - "INSERT INTO albums (name, mbid) VALUES (?, ?)", - (album.name, album.mbid)) - connection.commit() - rows = self._get_album(album, connection) - for row in rows: - if not with_connection: - connection.close() - return row[0] - if not with_connection: - connection.close() - return None - - def _get_albumartist(self, artist, connection): - if artist.mbid: - return connection.execute( - "SELECT id FROM albumartists WHERE mbid = ?", - (artist.mbid,)) - else: - return connection.execute( - "SELECT id FROM albumartists WHERE name = ? AND mbid IS NULL", - (artist.name,)) - - def get_albumartist(self, artist, with_connection=None, add=True): - """get albumartist information from the database. - if not in database insert new entry. - - :param sima.lib.meta.Artist artist: artist - :param sqlite3.Connection with_connection: SQLite connection - """ - if with_connection: - connection = with_connection - else: - connection = self.get_database_connection() - rows = self._get_albumartist(artist, connection) - for row in rows: - if not with_connection: - connection.close() - return row[0] - if not add: - if not with_connection: - connection.close() - return None - connection.execute( - "INSERT INTO albumartists (name, mbid) VALUES (?, ?)", - (artist.name, artist.mbid)) - connection.commit() - rows = self._get_albumartist(artist, connection) - for row in rows: - if not with_connection: - connection.close() - return row[0] - if not with_connection: - connection.close() - - def _get_artist(self, artist, connection): - if artist.mbid: - return connection.execute( - "SELECT id FROM artists WHERE mbid = ?", - (artist.mbid,)) - else: - return connection.execute( - "SELECT id FROM artists WHERE name = ? AND mbid IS NULL", (artist.name,)) - - def get_artist(self, artist, with_connection=None, add=True): - """get artist information from the database. - if not in database insert new entry. - - :param sima.lib.meta.Artist artist: artist - :param sqlite3.Connection with_connection: SQLite connection - """ - if with_connection: - connection = with_connection - else: - connection = self.get_database_connection() - rows = self._get_artist(artist, connection) - for row in rows: - if not with_connection: - connection.close() - return row[0] - if not add: - if not with_connection: - connection.close() - return None - connection.execute( - "INSERT INTO artists (name, mbid) VALUES (?, ?)", - (artist.name, artist.mbid)) - connection.commit() - rows = self._get_artist(artist, connection) - for row in rows: - if not with_connection: - connection.close() - return row[0] - if not with_connection: - connection.close() - - def get_genre(self, genre, with_connection=None, add=True): - """get genre from the database. - if not in database insert new entry. - - :param str genre: genre as a string - :param sqlite3.Connection with_connection: SQLite connection - """ - if with_connection: - connection = with_connection - else: - connection = self.get_database_connection() - rows = connection.execute( - "SELECT id FROM genres WHERE name = ?", (genre,)) - for row in rows: - if not with_connection: - connection.close() - return row[0] - if not add: - if not with_connection: - connection.close() - return None - connection.execute( - "INSERT INTO genres (name) VALUES (?)", (genre,)) - connection.commit() - rows = connection.execute( - "SELECT id FROM genres WHERE name = ?", (genre,)) - for row in rows: - if not with_connection: - connection.close() - return row[0] - - def get_track(self, track, with_connection=None, add=True): - """Get a track id from Tracks table, add if not existing, - :param sima.lib.track.Track track: track to use - :param bool add: add non existing track to database""" - if not track.file: - raise SimaDBError('Got a track with no file attribute: %r' % track) - if with_connection: - connection = with_connection - else: - connection = self.get_database_connection() - rows = connection.execute( - "SELECT * FROM tracks WHERE file = ?", (track.file,)) - for row in rows: - if not with_connection: - connection.close() - return row[0] - if not add: # Not adding non existing track - connection.close() - return None - # Get an artist record or None - if track.artist: - art = Artist(name=track.artist, mbid=track.musicbrainz_artistid) - art_id = self.get_artist(art, with_connection=connection) - else: - art_id = None - # Get an albumartist record or None - if track.albumartist: - albart = Artist(name=track.albumartist, - mbid=track.musicbrainz_albumartistid) - albart_id = self.get_albumartist(albart, with_connection=connection) - else: - albart_id = None - # Get an album record or None - if track.album: - alb = Album(name=track.album, mbid=track.musicbrainz_albumid) - alb_id = self.get_album(alb, with_connection=connection) - else: - alb_id = None - connection.execute( - """INSERT INTO tracks (artist, albumartist, album, title, mbid, file) - VALUES (?, ?, ?, ?, ?, ?)""", - (art_id, albart_id, alb_id, track.title, track.musicbrainz_trackid, - track.file)) - connection.commit() - # Add track id to junction tables - self._add_tracks_genres(track, connection) - rows = connection.execute( - "SELECT id FROM tracks WHERE file = ?", (track.file,)) - for row in rows: - if not with_connection: - connection.close() - return row[0] - if not with_connection: - connection.close() - return None - - def _add_tracks_genres(self, track, connection): - if not track.genres: - return None - rows = connection.execute( - "SELECT id FROM tracks WHERE file = ?", (track.file,)) - trk_id = rows.fetchone()[0] - for genre in track.genres: - # add genre - gen_id = self.get_genre(genre) - connection.execute("""INSERT INTO tracks_genres (track, genre) - VALUES (?, ?)""", (trk_id, gen_id)) - - def add_history(self, track, date=None): - """Record last play date of track (ie. not a real exhautive play history). - :param track sima.lib.track.Track: track to add to history""" - if not date: - date = datetime.now() - connection = self.get_database_connection() - track_id = self.get_track(track, with_connection=connection) - rows = connection.execute("SELECT * FROM history WHERE track = ? ", - (track_id,)) - if not rows.fetchone(): - connection.execute("INSERT INTO history (track) VALUES (?)", - (track_id,)) - connection.execute("UPDATE history SET last_play = ? " - " WHERE track = ?", (date, track_id,)) - connection.commit() - connection.close() - - def purge_history(self, duration=__HIST_DURATION__): - """Remove old entries in history - :param duration int: Purge history record older than duration in hours - (defaults to __HIST_DURATION__)""" - connection = self.get_database_connection() - connection.execute("DELETE FROM history WHERE last_play" - " < datetime('now', '-%i hours')" % duration) - connection.execute('VACUUM') - connection.commit() - connection.close() - - def fetch_albums_history(self, needle=None, duration=__HIST_DURATION__): - """ - :param sima.lib.meta.Artist needle: When specified, returns albums history for this artist. - """ - date = datetime.utcnow() - timedelta(hours=duration) - connection = self.get_database_connection() - connection.row_factory = sqlite3.Row - rows = connection.execute(""" - SELECT albums.name AS name, - albums.mbid as mbid, - artists.name as artist, - artists.mbid as artist_mbib - FROM history - JOIN tracks ON history.track = tracks.id - LEFT OUTER JOIN albums ON tracks.album = albums.id - LEFT OUTER JOIN artists ON tracks.artist = artists.id - WHERE history.last_play > ? AND albums.name NOT NULL AND artists.name NOT NULL - ORDER BY history.last_play DESC""", (date.isoformat(' '),)) - hist = list() - for row in rows: - vals = dict(row) - artist = Artist(name=vals.pop('artist'), - mbid=vals.pop('artist_mbib')) - if needle: - if needle != artist: - continue - album = Album(**vals, artist=artist) - if hist and hist[-1] == album: - # remove consecutive dupes - continue - hist.append(album) - connection.close() - return hist - - def fetch_artists_history(self, needle=None, duration=__HIST_DURATION__): - """Returns a list of Artist objects - :param sima.lib.meta.Artist|sima.lib.meta.MetaContainer needle: When specified, returns history for this artist, it's actually testing the artist presence in history. - :param sima.lib.meta.MetaContainer needle: When specified, returns history for these artists only - """ - date = datetime.utcnow() - timedelta(hours=duration) - connection = self.get_database_connection() - connection.row_factory = sqlite3.Row - rows = connection.execute(""" - SELECT artists.name AS name, - artists.mbid as mbid - FROM history - JOIN tracks ON history.track = tracks.id - LEFT OUTER JOIN artists ON tracks.artist = artists.id - WHERE history.last_play > ? AND artists.name NOT NULL - ORDER BY history.last_play DESC""", (date.isoformat(' '),)) - last = deque(maxlen=1) - hist = list() - for row in rows: - artist = Artist(**row) - if last and last[0] == artist: # remove consecutive dupes - continue - last.append(artist) - if needle and isinstance(needle, (Artist, str)): - if needle == artist: - hist.append(artist) # No need to go further - break - continue - elif needle and getattr(needle, '__contains__'): - if artist in needle: - hist.append(artist) # No need to go further - continue - hist.append(artist) - connection.close() - return hist - - def fetch_genres_history(self, duration=__HIST_DURATION__, limit=20): - date = datetime.utcnow() - timedelta(hours=duration) - connection = self.get_database_connection() - rows = connection.execute(""" - SELECT genres.name, artists.name - FROM history - JOIN tracks ON history.track = tracks.id - LEFT OUTER JOIN tracks_genres ON tracks_genres.track = tracks.id - LEFT OUTER JOIN artists ON tracks.artist = artists.id - LEFT OUTER JOIN genres ON genres.id = tracks_genres.genre - WHERE history.last_play > ? - ORDER BY history.last_play DESC - """, (date.isoformat(' '),)) - genres = list() - for row in rows: - genres.append(row) - if len({g[0] for g in genres}) >= limit: - break - connection.close() - return genres - - def fetch_history(self, artist=None, duration=__HIST_DURATION__): - """Fetches tracks history, more recent first - :param sima.lib.meta.Artist artist: limit history to this artist - :param int duration: How long ago to fetch history from - """ - date = datetime.utcnow() - timedelta(hours=duration) - connection = self.get_database_connection() - connection.row_factory = sqlite3.Row - sql = """ - SELECT tracks.title, tracks.file, artists.name AS artist, - albumartists.name AS albumartist, - artists.mbid as musicbrainz_artistid, - albums.name AS album, - albums.mbid AS musicbrainz_albumid, - tracks.mbid as musicbrainz_trackid - FROM history - JOIN tracks ON history.track = tracks.id - LEFT OUTER JOIN artists ON tracks.artist = artists.id - LEFT OUTER JOIN albumartists ON tracks.albumartist = albumartists.id - LEFT OUTER JOIN albums ON tracks.album = albums.id - WHERE history.last_play > ? - """ - if artist: - if artist.mbid: - rows = connection.execute(sql+""" - AND artists.mbid = ? - ORDER BY history.last_play DESC""", - (date.isoformat(' '), artist.mbid)) - else: - rows = connection.execute(sql+""" - AND artists.name = ? - ORDER BY history.last_play DESC""", - (date.isoformat(' '), artist.name)) - else: - rows = connection.execute(sql+'ORDER BY history.last_play DESC', - (date.isoformat(' '),)) - hist = list() - for row in rows: - hist.append(Track(**row)) - connection.close() - return hist - - def get_bl_track(self, track, with_connection=None, add=True): - """Add a track to blocklist - :param sima.lib.track.Track track: Track object to add to blocklist - :param sqlite3.Connection with_connection: sqlite3.Connection to reuse, else create a new one - :param bool add: Default is to add a new record, set to False to fetch associated record""" - if with_connection: - connection = with_connection - else: - connection = self.get_database_connection() - track_id = self.get_track(track, with_connection=connection, add=True) - rows = connection.execute( - "SELECT id FROM blocklist WHERE track = ?", (track_id,)) - if not rows.fetchone(): - if not add: - return None - connection.execute('INSERT INTO blocklist (track) VALUES (?)', - (track_id,)) - connection.commit() - rows = connection.execute( - "SELECT id FROM blocklist WHERE track = ?", (track_id,)) - bl = rows.fetchone()[0] - if not with_connection: - connection.close() - return bl - - def get_bl_album(self, album, with_connection=None, add=True): - """Add an album to blocklist - :param sima.lib.meta.Album: Album object to add to blocklist - :param sqlite3.Connection with_connection: sqlite3.Connection to reuse, else create a new one - :param bool add: Default is to add a new record, set to False to fetch associated record""" - if with_connection: - connection = with_connection - else: - connection = self.get_database_connection() - album_id = self.get_album(album, with_connection=connection, add=True) - rows = connection.execute( - "SELECT id FROM blocklist WHERE album = ?", (album_id,)) - if not rows.fetchone(): - if not add: - return None - connection.execute('INSERT INTO blocklist (album) VALUES (?)', - (album_id,)) - connection.commit() - rows = connection.execute( - "SELECT id FROM blocklist WHERE album = ?", (album_id,)) - bl = rows.fetchone()[0] - if not with_connection: - connection.close() - return bl - - def get_bl_artist(self, artist, with_connection=None, add=True): - """Add an artist to blocklist - :param sima.lib.meta.Artist: Artist object to add to blocklist - :param sqlite3.Connection with_connection: sqlite3.Connection to reuse, else create a new one - :param bool add: Default is to add a new record, set to False to fetch associated record""" - if with_connection: - connection = with_connection - else: - connection = self.get_database_connection() - artist_id = self.get_artist(artist, with_connection=connection, add=True) - rows = connection.execute( - "SELECT id FROM blocklist WHERE artist = ?", (artist_id,)) - if not rows.fetchone(): - if not add: - return None - connection.execute('INSERT INTO blocklist (artist) VALUES (?)', - (artist_id,)) - connection.commit() - rows = connection.execute( - "SELECT id FROM blocklist WHERE artist = ?", (artist_id,)) - bl = rows.fetchone()[0] - if not with_connection: - connection.close() - return bl - - def delete_bl(self, track=None, album=None, artist=None): - if not (track or album or artist): - return - connection = self.get_database_connection() - blid = None - if track: - blid = self.get_bl_track(track, with_connection=connection) - if album: - blid = self.get_bl_album(album, with_connection=connection) - if artist: - blid = self.get_bl_artist(artist, with_connection=connection) - if not blid: - return - self._remove_blocklist_id(blid, with_connection=connection) - connection.close() - - -# VIM MODLINE -# vim: ai ts=4 sw=4 sts=4 expandtab fileencoding=utf8 diff --git a/sima/lib/simadb.py b/sima/lib/simadb.py index d060da3..ca2277d 100644 --- a/sima/lib/simadb.py +++ b/sima/lib/simadb.py @@ -1,8 +1,4 @@ -# -*- coding: utf-8 -*- -# -# Copyright (c) 2009-2013, 2019-2020 kaliko -# Copyright (c) 2009, Eric Casteleijn -# Copyright (c) 2008 Rick van Hattem +# Copyright (c) 2009-2013, 2019-2021 kaliko # # This file is part of sima # @@ -23,19 +19,16 @@ """SQlite database library """ -# DOC: -# MuscicBrainz ID: -# Artists: -# - -__DB_VERSION__ = 3 +__DB_VERSION__ = 4 __HIST_DURATION__ = int(30 * 24) # in hours import sqlite3 +from collections import deque from datetime import (datetime, timedelta) -from os.path import dirname, isdir -from os import (access, W_OK, F_OK) + +from sima.lib.meta import Artist, Album +from sima.lib.track import Track class SimaDBError(Exception): @@ -44,509 +37,648 @@ class SimaDBError(Exception): """ -class SimaDBAccessError(SimaDBError): - """Error on accessing DB file""" - - -class SimaDBNoFile(SimaDBError): - """No DB file present""" - - class SimaDB: "SQLite management" def __init__(self, db_path=None): self._db_path = db_path - self.db_path_mod_control() - - def db_path_mod_control(self): - """Controls DB path access & write permissions""" - db_path = self._db_path - # Controls directory access - if not isdir(dirname(db_path)): - raise SimaDBAccessError('Not a regular directory: "%s"' % - dirname(db_path)) - if not access(dirname(db_path), W_OK): - raise SimaDBAccessError('No write access to "%s"' % dirname(db_path)) - # Is a file but no write access - if access(db_path, F_OK) and not access(db_path, W_OK | F_OK): - raise SimaDBAccessError('No write access to "%s"' % db_path) - # No file - if not access(db_path, F_OK): - raise SimaDBNoFile('No DB file in "%s"' % db_path) - - def close_database_connection(self, connection): - """Close the database connection.""" - connection.close() def get_database_connection(self): """get database reference""" connection = sqlite3.connect( - self._db_path, timeout=5.0, isolation_level=None) - #connection.text_factory = str + self._db_path, isolation_level=None) return connection - def get_artist(self, artist_name, mbid=None, - with_connection=None, add_not=False): - """get artist information from the database. - if not in database insert new entry.""" + def create_db(self): + """ Set up a database + """ + connection = self.get_database_connection() + connection.execute( + 'CREATE TABLE IF NOT EXISTS db_info' + ' (name CHAR(50), value CHAR(50))') + connection.execute('''INSERT INTO db_info (name, value) SELECT ?, ? + WHERE NOT EXISTS + ( SELECT 1 FROM db_info WHERE name = ? )''', + ('DB Version', __DB_VERSION__, 'DB Version')) + connection.execute( # ARTISTS + 'CREATE TABLE IF NOT EXISTS artists (id INTEGER PRIMARY KEY, ' + 'name VARCHAR(100), mbid CHAR(36))') + connection.execute( # ALBUMS + 'CREATE TABLE IF NOT EXISTS albums (id INTEGER PRIMARY KEY, ' + 'name VARCHAR(100), mbid CHAR(36))') + connection.execute( # ALBUMARTISTS + 'CREATE TABLE IF NOT EXISTS albumartists (id INTEGER PRIMARY KEY, ' + 'name VARCHAR(100), mbid CHAR(36))') + connection.execute( # TRACKS + 'CREATE TABLE IF NOT EXISTS tracks (id INTEGER PRIMARY KEY, ' + 'title VARCHAR(100), artist INTEGER, ' + 'album INTEGER, albumartist INTEGER, ' + 'file VARCHAR(500), mbid CHAR(36), ' + 'FOREIGN KEY(artist) REFERENCES artists(id), ' + 'FOREIGN KEY(album) REFERENCES albums(id), ' + 'FOREIGN KEY(albumartist) REFERENCES albumartists(id))') + connection.execute( # HISTORY + 'CREATE TABLE IF NOT EXISTS history (id INTEGER PRIMARY KEY, ' + 'last_play TIMESTAMP, track INTEGER, ' + 'FOREIGN KEY(track) REFERENCES tracks(id))') + connection.execute( # BLOCKLIST + 'CREATE TABLE IF NOT EXISTS blocklist (id INTEGER PRIMARY KEY, ' + 'artist INTEGER, album INTEGER, track INTEGER, ' + 'FOREIGN KEY(artist) REFERENCES artists(id), ' + 'FOREIGN KEY(album) REFERENCES albums(id), ' + 'FOREIGN KEY(track) REFERENCES tracks(id))') + connection.execute( # Genres (Many-to-many) + 'CREATE TABLE IF NOT EXISTS genres ' + '(id INTEGER PRIMARY KEY, name VARCHAR(100))') + connection.execute( # Junction Genres Tracks + """CREATE TABLE IF NOT EXISTS tracks_genres + ( track INTEGER, genre INTEGER, + FOREIGN KEY(track) REFERENCES tracks(id) + FOREIGN KEY(genre) REFERENCES genres(id))""") + # Create cleanup triggers: + # DELETE history → Tracks / Tracks_genres tables + connection.execute(''' + CREATE TRIGGER IF NOT EXISTS del_history_cleanup_tracks + AFTER DELETE ON history + WHEN ((SELECT count(*) FROM history WHERE track=old.track) = 0 AND + (SELECT count(*) FROM blocklist WHERE track=old.track) = 0) + BEGIN + DELETE FROM tracks WHERE id = old.track; + DELETE FROM tracks_genres WHERE track = old.track; + END; + ''') + # DELETE Tracks_Genres → Genres table + connection.execute(''' + CREATE TRIGGER IF NOT EXISTS del_tracks_genres_cleanup_genres + AFTER DELETE ON tracks_genres + WHEN ((SELECT count(*) FROM tracks_genres WHERE genre=old.genre) = 0) + BEGIN + DELETE FROM genres WHERE id = old.genre; + END; + ''') + # DELETE Tracks → Artists table + connection.execute(''' + CREATE TRIGGER IF NOT EXISTS del_tracks_cleanup_artists + AFTER DELETE ON tracks + WHEN ((SELECT count(*) FROM tracks WHERE artist=old.artist) = 0 AND + (SELECT count(*) FROM blocklist WHERE artist=old.artist) = 0) + BEGIN + DELETE FROM artists WHERE id = old.artist; + END; + ''') + # DELETE Tracks → Albums table + connection.execute(''' + CREATE TRIGGER IF NOT EXISTS del_tracks_cleanup_albums + AFTER DELETE ON tracks + WHEN ((SELECT count(*) FROM tracks WHERE album=old.album) = 0 AND + (SELECT count(*) FROM blocklist WHERE album=old.album) = 0) + BEGIN + DELETE FROM albums WHERE id = old.album; + END; + ''') + # DELETE Tracks → cleanup AlbumArtists table + connection.execute(''' + CREATE TRIGGER IF NOT EXISTS del_tracks_cleanup_albumartists + AFTER DELETE ON tracks + WHEN ((SELECT count(*) FROM tracks WHERE albumartist=old.albumartist) = 0) + BEGIN + DELETE FROM albumartists WHERE id = old.albumartist; + END; + ''') + # DELETE blocklist → Tracks table + connection.execute(''' + CREATE TRIGGER IF NOT EXISTS del_blocklist_cleanup_tracks + AFTER DELETE ON blocklist + WHEN ((SELECT count(*) FROM history WHERE track=old.track) = 0 AND + (SELECT count(*) FROM blocklist WHERE track=old.track) = 0) + BEGIN + DELETE FROM tracks WHERE id = old.track; + END; + ''') + # DELETE blocklist → Artists table + # The "SELECT count(*) FROM blocklist" is useless, + # there can be only one blocklist.artist + connection.execute(''' + CREATE TRIGGER IF NOT EXISTS del_blocklist_cleanup_artists + AFTER DELETE ON blocklist + WHEN ((SELECT count(*) FROM tracks WHERE artist=old.artist) = 0 AND + (SELECT count(*) FROM blocklist WHERE artist=old.artist) = 0) + BEGIN + DELETE FROM artists WHERE id = old.artist; + END; + ''') + # DELETE Tracks → Albums table + # The "SELECT count(*) FROM blocklist" is useless, + # there can be only one blocklist.album + connection.execute(''' + CREATE TRIGGER IF NOT EXISTS del_blocklist_cleanup_albums + AFTER DELETE ON blocklist + WHEN ((SELECT count(*) FROM tracks WHERE album=old.album) = 0 AND + (SELECT count(*) FROM blocklist WHERE album=old.album) = 0) + BEGIN + DELETE FROM albums WHERE id = old.album; + END; + ''') + connection.close() + + def drop_all(self): + connection = self.get_database_connection() + rows = connection.execute( + "SELECT name FROM sqlite_master WHERE type='table'") + for r in rows.fetchall(): + connection.execute(f'DROP TABLE IF EXISTS {r[0]}') + connection.close() + + def _remove_blocklist_id(self, blid, with_connection=None): + """Remove id""" if with_connection: connection = with_connection else: connection = self.get_database_connection() - rows = connection.execute( - "SELECT * FROM artists WHERE name = ?", (artist_name,)) - for row in rows: - if not with_connection: - self.close_database_connection(connection) - return row - if add_not: - if not with_connection: - self.close_database_connection(connection) - return False - connection.execute( - "INSERT INTO artists (name, mbid) VALUES (?, ?)", - (artist_name, mbid)) + connection = self.get_database_connection() + connection.execute('DELETE FROM blocklist' + ' WHERE blocklist.id = ?', (blid,)) connection.commit() - rows = connection.execute( - "SELECT * FROM artists WHERE name = ?", (artist_name,)) - for row in rows: - if not with_connection: - self.close_database_connection(connection) - return row if not with_connection: - self.close_database_connection(connection) + connection.close() + + def _get_album(self, album, connection): + if album.mbid: + return connection.execute( + "SELECT id FROM albums WHERE mbid = ?", + (album.mbid,)) + else: + return connection.execute( + "SELECT id FROM albums WHERE name = ? AND mbid IS NULL", + (album.name,)) - def get_track(self, track, with_connection=None, add_not=False): + def get_album(self, album, with_connection=None, add=True): + """get album information from the database. + if not in database insert new entry. + + :param sima.lib.meta.Album album: album objet + :param sqlite3.Connection with_connection: SQLite connection """ - Get a track from Tracks table, add if not existing, - Attention: use Track() object!! - if not in database insert new entry.""" - art = track.artist - nam = track.title - fil = track.file if with_connection: connection = with_connection else: connection = self.get_database_connection() - art_id = self.get_artist(art, with_connection=connection)[0] - alb_id = self.get_album(track, with_connection=connection)[0] - rows = connection.execute( - "SELECT * FROM tracks WHERE name = ? AND" - " artist = ? AND file = ?", (nam, art_id, fil)) + rows = self._get_album(album, connection) for row in rows: if not with_connection: - self.close_database_connection(connection) - return row - if add_not: - return False + connection.close() + return row[0] + if not add: + if not with_connection: + connection.close() + return None connection.execute( - "INSERT INTO tracks (artist, album, name, file) VALUES (?, ?, ?, ?)", - (art_id, alb_id, nam, fil)) + "INSERT INTO albums (name, mbid) VALUES (?, ?)", + (album.name, album.mbid)) connection.commit() - rows = connection.execute( - "SELECT * FROM tracks WHERE name = ? AND" - " artist = ? AND album = ? AND file = ?", - (nam, art_id, alb_id, fil,)) + rows = self._get_album(album, connection) for row in rows: if not with_connection: - self.close_database_connection(connection) - return row + connection.close() + return row[0] if not with_connection: - connection.commit() - self.close_database_connection(connection) + connection.close() + return None + + def _get_albumartist(self, artist, connection): + if artist.mbid: + return connection.execute( + "SELECT id FROM albumartists WHERE mbid = ?", + (artist.mbid,)) + else: + return connection.execute( + "SELECT id FROM albumartists WHERE name = ? AND mbid IS NULL", + (artist.name,)) - def get_album(self, track, mbid=None, - with_connection=None, add_not=False): - """ - get album information from the database. + def get_albumartist(self, artist, with_connection=None, add=True): + """get albumartist information from the database. if not in database insert new entry. - Attention: use Track|Album object!! - Use AlbumArtist tag if provided, fallback to Album tag + + :param sima.lib.meta.Artist artist: artist + :param sqlite3.Connection with_connection: SQLite connection """ if with_connection: connection = with_connection else: connection = self.get_database_connection() - if track.albumartist: - artist = track.albumartist - else: - artist = track.artist - art_id = self.get_artist(artist, with_connection=connection)[0] - album = track.album - rows = connection.execute( - "SELECT * FROM albums WHERE name = ? AND artist = ?", - (album, art_id)) + rows = self._get_albumartist(artist, connection) for row in rows: if not with_connection: - self.close_database_connection(connection) - return row - if add_not: - return False + connection.close() + return row[0] + if not add: + if not with_connection: + connection.close() + return None connection.execute( - "INSERT INTO albums (name, artist, mbid) VALUES (?, ?, ?)", - (album, art_id, mbid)) + "INSERT INTO albumartists (name, mbid) VALUES (?, ?)", + (artist.name, artist.mbid)) connection.commit() - rows = connection.execute( - "SELECT * FROM albums WHERE name = ? AND artist = ?", - (album, art_id)) + rows = self._get_albumartist(artist, connection) for row in rows: if not with_connection: - self.close_database_connection(connection) - return row + connection.close() + return row[0] if not with_connection: - self.close_database_connection(connection) + connection.close() - def get_artists(self, with_connection=None): - """Returns all artists in DB""" - if with_connection: - connection = with_connection + def _get_artist(self, artist, connection): + if artist.mbid: + return connection.execute( + "SELECT id FROM artists WHERE mbid = ?", + (artist.mbid,)) else: - connection = self.get_database_connection() - rows = connection.execute("SELECT name FROM artists ORDER BY name") - results = [row for row in rows] - if not with_connection: - self.close_database_connection(connection) - for artist in results: - yield artist + return connection.execute( + "SELECT id FROM artists WHERE name = ? AND mbid IS NULL", (artist.name,)) + + def get_artist(self, artist, with_connection=None, add=True): + """get artist information from the database. + if not in database insert new entry. - def get_bl_artist(self, artist_name, - with_connection=None, add_not=None): - """get blacklisted artist information from the database.""" + :param sima.lib.meta.Artist artist: artist + :param sqlite3.Connection with_connection: SQLite connection + """ if with_connection: connection = with_connection else: connection = self.get_database_connection() - art = self.get_artist(artist_name, with_connection=connection, - add_not=add_not) - if not art: - return False - art_id = art[0] - rows = connection.execute("SELECT * FROM black_list WHERE artist = ?", - (art_id,)) + rows = self._get_artist(artist, connection) for row in rows: if not with_connection: - self.close_database_connection(connection) - return row - if add_not: + connection.close() + return row[0] + if not add: if not with_connection: - self.close_database_connection(connection) - return False - connection.execute("INSERT INTO black_list (artist) VALUES (?)", - (art_id,)) - connection.execute("UPDATE black_list SET updated = DATETIME('now')" - " WHERE artist = ?", (art_id,)) + connection.close() + return None + connection.execute( + "INSERT INTO artists (name, mbid) VALUES (?, ?)", + (artist.name, artist.mbid)) connection.commit() - rows = connection.execute("SELECT * FROM black_list WHERE artist = ?", - (art_id,)) + rows = self._get_artist(artist, connection) for row in rows: if not with_connection: - self.close_database_connection(connection) - return row + connection.close() + return row[0] if not with_connection: - self.close_database_connection(connection) - return False + connection.close() - def get_bl_album(self, track, with_connection=None, add_not=None): - """get blacklisted album information from the database.""" + def get_genre(self, genre, with_connection=None, add=True): + """get genre from the database. + if not in database insert new entry. + + :param str genre: genre as a string + :param sqlite3.Connection with_connection: SQLite connection + """ if with_connection: connection = with_connection else: connection = self.get_database_connection() - album = self.get_album(track, with_connection=connection, - add_not=add_not) - if not album: - return False - alb_id = album[0] - rows = connection.execute("SELECT * FROM black_list WHERE album = ?", - (alb_id,)) + rows = connection.execute( + "SELECT id FROM genres WHERE name = ?", (genre,)) for row in rows: if not with_connection: - self.close_database_connection(connection) - return row - if add_not: + connection.close() + return row[0] + if not add: if not with_connection: - self.close_database_connection(connection) - return False - connection.execute("INSERT INTO black_list (album) VALUES (?)", - (alb_id,)) - connection.execute("UPDATE black_list SET updated = DATETIME('now')" - " WHERE album = ?", (alb_id,)) + connection.close() + return None + connection.execute( + "INSERT INTO genres (name) VALUES (?)", (genre,)) connection.commit() - rows = connection.execute("SELECT * FROM black_list WHERE album = ?", - (alb_id,)) + rows = connection.execute( + "SELECT id FROM genres WHERE name = ?", (genre,)) for row in rows: if not with_connection: - self.close_database_connection(connection) - return row - if not with_connection: - self.close_database_connection(connection) - return False - - def get_bl_track(self, track, with_connection=None, add_not=None): - """get blacklisted track information from the database.""" + connection.close() + return row[0] + + def get_track(self, track, with_connection=None, add=True): + """Get a track id from Tracks table, add if not existing, + :param sima.lib.track.Track track: track to use + :param bool add: add non existing track to database""" + if not track.file: + raise SimaDBError('Got a track with no file attribute: %r' % track) if with_connection: connection = with_connection else: connection = self.get_database_connection() - track = self.get_track(track, with_connection=connection, - add_not=add_not) - if not track: - return False - track_id = track[0] - rows = connection.execute("SELECT * FROM black_list WHERE track = ?", - (track_id,)) + rows = connection.execute( + "SELECT * FROM tracks WHERE file = ?", (track.file,)) for row in rows: if not with_connection: - self.close_database_connection(connection) - return row - if add_not: - if not with_connection: - self.close_database_connection(connection) - return False - connection.execute("INSERT INTO black_list (track) VALUES (?)", - (track_id,)) - connection.execute("UPDATE black_list SET updated = DATETIME('now')" - " WHERE track = ?", (track_id,)) + connection.close() + return row[0] + if not add: # Not adding non existing track + connection.close() + return None + # Get an artist record or None + if track.artist: + art = Artist(name=track.artist, mbid=track.musicbrainz_artistid) + art_id = self.get_artist(art, with_connection=connection) + else: + art_id = None + # Get an albumartist record or None + if track.albumartist: + albart = Artist(name=track.albumartist, + mbid=track.musicbrainz_albumartistid) + albart_id = self.get_albumartist(albart, with_connection=connection) + else: + albart_id = None + # Get an album record or None + if track.album: + alb = Album(name=track.album, mbid=track.musicbrainz_albumid) + alb_id = self.get_album(alb, with_connection=connection) + else: + alb_id = None + connection.execute( + """INSERT INTO tracks (artist, albumartist, album, title, mbid, file) + VALUES (?, ?, ?, ?, ?, ?)""", + (art_id, albart_id, alb_id, track.title, track.musicbrainz_trackid, + track.file)) connection.commit() - rows = connection.execute("SELECT * FROM black_list WHERE track = ?", - (track_id,)) + # Add track id to junction tables + self._add_tracks_genres(track, connection) + rows = connection.execute( + "SELECT id FROM tracks WHERE file = ?", (track.file,)) for row in rows: if not with_connection: - self.close_database_connection(connection) - return row + connection.close() + return row[0] if not with_connection: - self.close_database_connection(connection) - return False + connection.close() + return None + + def _add_tracks_genres(self, track, connection): + if not track.genres: + return None + rows = connection.execute( + "SELECT id FROM tracks WHERE file = ?", (track.file,)) + trk_id = rows.fetchone()[0] + for genre in track.genres: + # add genre + gen_id = self.get_genre(genre) + connection.execute("""INSERT INTO tracks_genres (track, genre) + VALUES (?, ?)""", (trk_id, gen_id)) + + def add_history(self, track, date=None): + """Record last play date of track (ie. not a real exhautive play history). + :param track sima.lib.track.Track: track to add to history""" + if not date: + date = datetime.now() + connection = self.get_database_connection() + track_id = self.get_track(track, with_connection=connection) + rows = connection.execute("SELECT * FROM history WHERE track = ? ", + (track_id,)) + if not rows.fetchone(): + connection.execute("INSERT INTO history (track) VALUES (?)", + (track_id,)) + connection.execute("UPDATE history SET last_play = ? " + " WHERE track = ?", (date, track_id,)) + connection.commit() + connection.close() + + def purge_history(self, duration=__HIST_DURATION__): + """Remove old entries in history + :param duration int: Purge history record older than duration in hours + (defaults to __HIST_DURATION__)""" + connection = self.get_database_connection() + connection.execute("DELETE FROM history WHERE last_play" + " < datetime('now', '-%i hours')" % duration) + connection.execute('VACUUM') + connection.commit() + connection.close() - def get_artists_history(self, artists, duration=__HIST_DURATION__): + def fetch_albums_history(self, needle=None, duration=__HIST_DURATION__): """ - :param list artists: list of object that can evaluate equality with - artist name, iterable of str or Artist object + :param sima.lib.meta.Artist needle: When specified, returns albums history for this artist. """ date = datetime.utcnow() - timedelta(hours=duration) connection = self.get_database_connection() - rows = connection.execute( - "SELECT arts.name, albs.name, trs.name, trs.file" - " FROM artists AS arts, tracks AS trs, history AS hist, albums AS albs" - " WHERE trs.id = hist.track AND trs.artist = arts.id AND trs.album = albs.id" - " AND hist.last_play > ? ORDER BY hist.last_play DESC", (date.isoformat(' '),)) + connection.row_factory = sqlite3.Row + rows = connection.execute(""" + SELECT albums.name AS name, + albums.mbid as mbid, + artists.name as artist, + artists.mbid as artist_mbib + FROM history + JOIN tracks ON history.track = tracks.id + LEFT OUTER JOIN albums ON tracks.album = albums.id + LEFT OUTER JOIN artists ON tracks.artist = artists.id + WHERE history.last_play > ? AND albums.name NOT NULL AND artists.name NOT NULL + ORDER BY history.last_play DESC""", (date.isoformat(' '),)) + hist = list() for row in rows: - if artists and row[0] not in artists: + vals = dict(row) + artist = Artist(name=vals.pop('artist'), + mbid=vals.pop('artist_mbib')) + if needle: + if needle != artist: + continue + album = Album(**vals, artist=artist) + if hist and hist[-1] == album: + # remove consecutive dupes continue - for art in artists: - if row[0] == art: - yield art - self.close_database_connection(connection) - - def get_history(self, artist=None, artists=None, duration=__HIST_DURATION__): - """Retrieve complete play history, most recent tracks first - artist : filter history for specific artist - artists : filter history for specific artists list - """ # pylint: disable=C0301 + hist.append(album) + connection.close() + return hist + + def fetch_artists_history(self, needle=None, duration=__HIST_DURATION__): + """Returns a list of Artist objects + :param sima.lib.meta.Artist|sima.lib.meta.MetaContainer needle: When specified, returns history for this artist, it's actually testing the artist presence in history. + :param sima.lib.meta.MetaContainer needle: When specified, returns history for these artists only + """ date = datetime.utcnow() - timedelta(hours=duration) connection = self.get_database_connection() - if artist: - rows = connection.execute( - "SELECT arts.name, albs.name, trs.name, trs.file, hist.last_play" - " FROM artists AS arts, tracks AS trs, history AS hist, albums AS albs" - " WHERE trs.id = hist.track AND trs.artist = arts.id AND trs.album = albs.id" - " AND hist.last_play > ? AND arts.name = ?" - " ORDER BY hist.last_play DESC", (date.isoformat(' '), artist,)) - else: - rows = connection.execute( - "SELECT arts.name, albs.name, trs.name, trs.file" - " FROM artists AS arts, tracks AS trs, history AS hist, albums AS albs" - " WHERE trs.id = hist.track AND trs.artist = arts.id AND trs.album = albs.id" - " AND hist.last_play > ? ORDER BY hist.last_play DESC", (date.isoformat(' '),)) + connection.row_factory = sqlite3.Row + rows = connection.execute(""" + SELECT artists.name AS name, + artists.mbid as mbid + FROM history + JOIN tracks ON history.track = tracks.id + LEFT OUTER JOIN artists ON tracks.artist = artists.id + WHERE history.last_play > ? AND artists.name NOT NULL + ORDER BY history.last_play DESC""", (date.isoformat(' '),)) + last = deque(maxlen=1) + hist = list() for row in rows: - if artists and row[0] not in artists: + artist = Artist(**row) + if last and last[0] == artist: # remove consecutive dupes + continue + last.append(artist) + if needle and isinstance(needle, (Artist, str)): + if needle == artist: + hist.append(artist) # No need to go further + break + continue + elif needle and getattr(needle, '__contains__'): + if artist in needle: + hist.append(artist) # No need to go further continue - yield row - self.close_database_connection(connection) + hist.append(artist) + connection.close() + return hist - def get_black_list(self): - """Retrieve complete black list.""" + def fetch_genres_history(self, duration=__HIST_DURATION__, limit=20): + date = datetime.utcnow() - timedelta(hours=duration) connection = self.get_database_connection() - rows = connection.execute('SELECT black_list.rowid, artists.name' - ' FROM artists INNER JOIN black_list' - ' ON artists.id = black_list.artist') - yield ('Row ID', 'Actual black listed element', 'Extra information',) - yield ('',) - yield ('Row ID', 'Artist',) + rows = connection.execute(""" + SELECT genres.name, artists.name + FROM history + JOIN tracks ON history.track = tracks.id + LEFT OUTER JOIN tracks_genres ON tracks_genres.track = tracks.id + LEFT OUTER JOIN artists ON tracks.artist = artists.id + LEFT OUTER JOIN genres ON genres.id = tracks_genres.genre + WHERE history.last_play > ? + ORDER BY history.last_play DESC + """, (date.isoformat(' '),)) + genres = list() for row in rows: - yield row - rows = connection.execute( - 'SELECT black_list.rowid, albums.name, artists.name' - ' FROM artists, albums INNER JOIN black_list' - ' ON albums.id = black_list.album' - ' WHERE artists.id = albums.artist') - yield ('',) - yield ('Row ID', 'Album', 'Artist name') - for row in rows: - yield row - rows = connection.execute( - 'SELECT black_list.rowid, tracks.name, artists.name' - ' FROM artists, tracks INNER JOIN black_list' - ' ON tracks.id = black_list.track' - ' WHERE tracks.artist = artists.id') - yield ('',) - yield ('Row ID', 'Title', 'Artist name') + genres.append(row) + if len({g[0] for g in genres}) >= limit: + break + connection.close() + return genres + + def fetch_history(self, artist=None, duration=__HIST_DURATION__): + """Fetches tracks history, more recent first + :param sima.lib.meta.Artist artist: limit history to this artist + :param int duration: How long ago to fetch history from + """ + date = datetime.utcnow() - timedelta(hours=duration) + connection = self.get_database_connection() + connection.row_factory = sqlite3.Row + sql = """ + SELECT tracks.title, tracks.file, artists.name AS artist, + albumartists.name AS albumartist, + artists.mbid as musicbrainz_artistid, + albums.name AS album, + albums.mbid AS musicbrainz_albumid, + tracks.mbid as musicbrainz_trackid + FROM history + JOIN tracks ON history.track = tracks.id + LEFT OUTER JOIN artists ON tracks.artist = artists.id + LEFT OUTER JOIN albumartists ON tracks.albumartist = albumartists.id + LEFT OUTER JOIN albums ON tracks.album = albums.id + WHERE history.last_play > ? + """ + if artist: + if artist.mbid: + rows = connection.execute(sql+""" + AND artists.mbid = ? + ORDER BY history.last_play DESC""", + (date.isoformat(' '), artist.mbid)) + else: + rows = connection.execute(sql+""" + AND artists.name = ? + ORDER BY history.last_play DESC""", + (date.isoformat(' '), artist.name)) + else: + rows = connection.execute(sql+'ORDER BY history.last_play DESC', + (date.isoformat(' '),)) + hist = list() for row in rows: - yield row - self.close_database_connection(connection) + hist.append(Track(**row)) + connection.close() + return hist - def _set_mbid(self, artist_id=None, mbid=None, with_connection=None): - """""" + def get_bl_track(self, track, with_connection=None, add=True): + """Add a track to blocklist + :param sima.lib.track.Track track: Track object to add to blocklist + :param sqlite3.Connection with_connection: sqlite3.Connection to reuse, else create a new one + :param bool add: Default is to add a new record, set to False to fetch associated record""" if with_connection: connection = with_connection else: connection = self.get_database_connection() - connection.execute("UPDATE artists SET mbid = ? WHERE id = ?", - (mbid, artist_id)) - connection.commit() - if not with_connection: - self.close_database_connection(connection) - - def _remove_bl(self, rowid): - """Remove bl row id""" - connection = self.get_database_connection() - connection.execute('DELETE FROM black_list' - ' WHERE black_list.rowid = ?', (rowid,)) - connection.commit() - self.close_database_connection(connection) - - def add_history(self, track): - """Add to history""" - connection = self.get_database_connection() - track_id = self.get_track(track, with_connection=connection)[0] - rows = connection.execute("SELECT * FROM history WHERE track = ? ", - (track_id,)) + track_id = self.get_track(track, with_connection=connection, add=True) + rows = connection.execute( + "SELECT id FROM blocklist WHERE track = ?", (track_id,)) if not rows.fetchone(): - connection.execute("INSERT INTO history (track) VALUES (?)", + if not add: + return None + connection.execute('INSERT INTO blocklist (track) VALUES (?)', (track_id,)) - connection.execute("UPDATE history SET last_play = DATETIME('now') " - " WHERE track = ?", (track_id,)) - connection.commit() - self.close_database_connection(connection) - - def _clean_artists_table(self, with_connection=None): - """Clean orphan artists""" - if with_connection: - connection = with_connection - else: - connection = self.get_database_connection() - artists_ids = {row[0] for row in connection.execute( - "SELECT id FROM artists")} - artist_2_artist_ids = {row[0] for row in connection.execute( - "SELECT artist FROM black_list")} | { - row[0] for row in connection.execute( - "SELECT artist FROM albums")} | { - row[0] for row in connection.execute( - "SELECT artist FROM tracks")} - orphans = [(orphan,) for orphan in artists_ids - artist_2_artist_ids] - connection.executemany('DELETE FROM artists WHERE id = (?);', orphans) - if not with_connection: connection.commit() - self.close_database_connection(connection) - - def _clean_albums_table(self, with_connection=None): - """Clean orphan albums""" - if with_connection: - connection = with_connection - else: - connection = self.get_database_connection() - orphan_black_ids = {row[0] for row in connection.execute( - """SELECT albums.id FROM albums - LEFT JOIN black_list ON albums.id = black_list.album - WHERE ( black_list.album IS NULL )""")} - orphan_tracks_ids = {row[0] for row in connection.execute( - """SELECT albums.id FROM albums - LEFT JOIN tracks ON albums.id = tracks.album - WHERE tracks.album IS NULL""")} - orphans = [(orphan,) for orphan in orphan_black_ids & orphan_tracks_ids] - connection.executemany('DELETE FROM albums WHERE id = (?);', orphans) + rows = connection.execute( + "SELECT id FROM blocklist WHERE track = ?", (track_id,)) + bl = rows.fetchone()[0] if not with_connection: - connection.commit() - self.close_database_connection(connection) - - def _clean_tracks_table(self, with_connection=None): - """Clean orphan tracks""" + connection.close() + return bl + + def get_bl_album(self, album, with_connection=None, add=True): + """Add an album to blocklist + :param sima.lib.meta.Album: Album object to add to blocklist + :param sqlite3.Connection with_connection: sqlite3.Connection to reuse, else create a new one + :param bool add: Default is to add a new record, set to False to fetch associated record""" if with_connection: connection = with_connection else: connection = self.get_database_connection() - hist_orphan_ids = {row[0] for row in connection.execute( - """SELECT tracks.id FROM tracks - LEFT JOIN history ON tracks.id = history.track - WHERE history.track IS NULL""")} - black_list_orphan_ids = {row[0] for row in connection.execute( - """SELECT tracks.id FROM tracks - LEFT JOIN black_list ON tracks.id = black_list.track - WHERE black_list.track IS NULL""")} - orphans = [(orphan,) for orphan in hist_orphan_ids & black_list_orphan_ids] - connection.executemany('DELETE FROM tracks WHERE id = (?);', orphans) - if not with_connection: + album_id = self.get_album(album, with_connection=connection, add=True) + rows = connection.execute( + "SELECT id FROM blocklist WHERE album = ?", (album_id,)) + if not rows.fetchone(): + if not add: + return None + connection.execute('INSERT INTO blocklist (album) VALUES (?)', + (album_id,)) connection.commit() - self.close_database_connection(connection) - - def clean_database(self, with_connection=None): - """Wrapper around _clean_* methods""" + rows = connection.execute( + "SELECT id FROM blocklist WHERE album = ?", (album_id,)) + bl = rows.fetchone()[0] + if not with_connection: + connection.close() + return bl + + def get_bl_artist(self, artist, with_connection=None, add=True): + """Add an artist to blocklist + :param sima.lib.meta.Artist: Artist object to add to blocklist + :param sqlite3.Connection with_connection: sqlite3.Connection to reuse, else create a new one + :param bool add: Default is to add a new record, set to False to fetch associated record""" if with_connection: connection = with_connection else: connection = self.get_database_connection() - self._clean_tracks_table(with_connection=connection) - self._clean_albums_table(with_connection=connection) - self._clean_artists_table(with_connection=connection) - connection.execute("VACUUM") - if not with_connection: + artist_id = self.get_artist(artist, with_connection=connection, add=True) + rows = connection.execute( + "SELECT id FROM blocklist WHERE artist = ?", (artist_id,)) + if not rows.fetchone(): + if not add: + return None + connection.execute('INSERT INTO blocklist (artist) VALUES (?)', + (artist_id,)) connection.commit() - self.close_database_connection(connection) - - def purge_history(self, duration=__HIST_DURATION__): - """Remove old entries in history""" - connection = self.get_database_connection() - connection.execute("DELETE FROM history WHERE last_play" - " < datetime('now', '-%i hours')" % duration) - connection.commit() - self.close_database_connection(connection) - - def _set_dbversion(self): - """Add db version""" - connection = self.get_database_connection() - connection.execute('INSERT INTO db_info (version, name) VALUES (?, ?)', - (__DB_VERSION__, 'Sima DB')) - connection.commit() - self.close_database_connection(connection) + rows = connection.execute( + "SELECT id FROM blocklist WHERE artist = ?", (artist_id,)) + bl = rows.fetchone()[0] + if not with_connection: + connection.close() + return bl - def create_db(self): - """ Set up a database - """ + def delete_bl(self, track=None, album=None, artist=None): + if not (track or album or artist): + return connection = self.get_database_connection() - connection.execute( - 'CREATE TABLE IF NOT EXISTS db_info' - ' (version INTEGER, name CHAR(36))') - connection.execute( - 'CREATE TABLE IF NOT EXISTS artists (id INTEGER PRIMARY KEY, name' - ' VARCHAR(100), mbid CHAR(36))') - connection.execute( - 'CREATE TABLE IF NOT EXISTS albums (id INTEGER PRIMARY KEY,' - ' artist INTEGER, name VARCHAR(100), mbid CHAR(36))') - connection.execute( - 'CREATE TABLE IF NOT EXISTS tracks (id INTEGER PRIMARY KEY,' - ' name VARCHAR(100), artist INTEGER, album INTEGER,' - ' file VARCHAR(500), mbid CHAR(36))') - connection.execute( - 'CREATE TABLE IF NOT EXISTS black_list (artist INTEGER,' - ' album INTEGER, track INTEGER, updated DATE)') - connection.execute( - 'CREATE TABLE IF NOT EXISTS history (last_play DATE,' - ' track integer)') - connection.commit() - self.close_database_connection(connection) - self._set_dbversion() + blid = None + if track: + blid = self.get_bl_track(track, with_connection=connection) + if album: + blid = self.get_bl_album(album, with_connection=connection) + if artist: + blid = self.get_bl_artist(artist, with_connection=connection) + if not blid: + return + self._remove_blocklist_id(blid, with_connection=connection) + connection.close() # VIM MODLINE -# vim: ai ts=4 sw=4 sts=4 expandtab +# vim: ai ts=4 sw=4 sts=4 expandtab fileencoding=utf8 diff --git a/tests/test_simadb.py b/tests/test_simadb.py index 3be8758..e69c4bd 100644 --- a/tests/test_simadb.py +++ b/tests/test_simadb.py @@ -4,7 +4,7 @@ import datetime import unittest import os -from sima.lib.db import SimaDB +from sima.lib.simadb import SimaDB from sima.lib.track import Track from sima.lib.meta import Album, Artist, MetaContainer