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readcursor -> cursor

master
dave 2 years ago
parent
commit
bfcb528ddf
  1. 232
      pysonic/database.py

232
pysonic/database.py

@ -9,9 +9,9 @@ logging = logging.getLogger("database")
keys_in_table = ["title", "album", "artist", "type", "size"]
def dict_factory(cursor, row):
def dict_factory(c, row):
d = {}
for idx, col in enumerate(cursor.description):
for idx, col in enumerate(c.description):
d[col[0]] = row[idx]
return d
@ -28,7 +28,7 @@ def hash_password(unicode_string):
return sha512(unicode_string.encode('UTF-8')).hexdigest()
def readcursor(func):
def cursor(func):
"""
Provides a cursor to the wrapped method as the first arg.
"""
@ -37,8 +37,8 @@ def readcursor(func):
if len(args) >= 2 and isinstance(args[1], sqlite3.Cursor):
return func(*args, **kwargs)
else:
with closing(self.db.cursor()) as cursor:
return func(self, cursor, *args[1:], **kwargs)
with closing(self.db.cursor()) as c:
return func(self, c, *args[1:], **kwargs)
return wrapped
@ -135,31 +135,31 @@ class PysonicDatabase(object):
'value' TEXT);""",
"""INSERT INTO meta VALUES ('db_version', '1');"""]
with closing(self.db.cursor()) as cursor:
cursor.execute("SELECT * FROM sqlite_master WHERE type='table' AND name='meta'")
with closing(self.db.cursor()) as c:
c.execute("SELECT * FROM sqlite_master WHERE type='table' AND name='meta'")
# Initialize DB
if len(cursor.fetchall()) == 0:
if len(c.fetchall()) == 0:
logging.warning("Initializing database")
for query in queries:
cursor.execute(query)
cursor.execute("COMMIT")
c.execute(query)
c.execute("COMMIT")
else:
# Migrate if old db exists
# cursor.execute("""UPDATE meta SET value=? WHERE key="db_version";""", (str(version), ))
# c.execute("""UPDATE meta SET value=? WHERE key="db_version";""", (str(version), ))
# logging.warning("db schema is version {}".format(version))
pass
@readcursor
def get_stats(self, cursor):
songs = cursor.execute("SELECT COUNT(*) as cnt FROM songs").fetchone()['cnt']
artists = cursor.execute("SELECT COUNT(*) as cnt FROM artists").fetchone()['cnt']
albums = cursor.execute("SELECT COUNT(*) as cnt FROM albums").fetchone()['cnt']
@cursor
def get_stats(self, c):
songs = c.execute("SELECT COUNT(*) as cnt FROM songs").fetchone()['cnt']
artists = c.execute("SELECT COUNT(*) as cnt FROM artists").fetchone()['cnt']
albums = c.execute("SELECT COUNT(*) as cnt FROM albums").fetchone()['cnt']
return dict(songs=songs, artists=artists, albums=albums)
# Music related
@readcursor
def add_root(self, cursor, path, name="Library"):
@cursor
def add_root(self, c, path, name="Library"):
"""
Add a new library root. Returns the root ID or raises on collision
:param path: normalized absolute path to add to the library
@ -169,14 +169,14 @@ class PysonicDatabase(object):
"""
assert path.startswith("/")
try:
cursor.execute("INSERT INTO libraries ('name', 'path') VALUES (?, ?)", (name, path, ))
cursor.execute("COMMIT")
return cursor.lastrowid
c.execute("INSERT INTO libraries ('name', 'path') VALUES (?, ?)", (name, path, ))
c.execute("COMMIT")
return c.lastrowid
except sqlite3.IntegrityError:
raise DuplicateRootException("Root '{}' already exists".format(path))
@readcursor
def get_libraries(self, cursor, id=None):
@cursor
def get_libraries(self, c, id=None):
libs = []
q = "SELECT * FROM libraries"
params = []
@ -186,13 +186,13 @@ class PysonicDatabase(object):
params.append(id)
if conditions:
q += " WHERE " + " AND ".join(conditions)
cursor.execute(q, params)
for row in cursor:
c.execute(q, params)
for row in c:
libs.append(row)
return libs
@readcursor
def get_artists(self, cursor, id=None, dirid=None, sortby="name", order=None, name_contains=None):
@cursor
def get_artists(self, c, id=None, dirid=None, sortby="name", order=None, name_contains=None):
assert order in ["asc", "desc", None]
artists = []
q = "SELECT * FROM artists"
@ -211,13 +211,13 @@ class PysonicDatabase(object):
q += " WHERE " + " AND ".join(conditions)
if sortby:
q += " ORDER BY {} {}".format(sortby, order.upper() if order else "ASC")
cursor.execute(q, params)
for row in cursor:
c.execute(q, params)
for row in c:
artists.append(row)
return artists
@readcursor
def get_albums(self, cursor, id=None, artist=None, sortby="name", order=None, limit=None, name_contains=None):
@cursor
def get_albums(self, c, id=None, artist=None, sortby="name", order=None, limit=None, name_contains=None):
"""
:param limit: int or tuple of int, int. translates directly to sql logic.
"""
@ -264,13 +264,13 @@ class PysonicDatabase(object):
q += " LIMIT {}".format(limit) if isinstance(limit, int) \
else " LIMIT {}, {}".format(*limit)
cursor.execute(q, params)
for row in cursor:
c.execute(q, params)
for row in c:
albums.append(row)
return albums
@readcursor
def get_songs(self, cursor, id=None, genre=None, sortby="title", order=None, limit=None, title_contains=None):
@cursor
def get_songs(self, c, id=None, genre=None, sortby="title", order=None, limit=None, title_contains=None):
# TODO make this query massively uglier by joining albums and artists so that artistid etc can be a filter
# or maybe lookup those IDs in the library layer?
if order:
@ -326,13 +326,13 @@ class PysonicDatabase(object):
if limit:
q += " LIMIT {}".format(limit) # TODO support limit pagination
cursor.execute(q, params)
for row in cursor:
c.execute(q, params)
for row in c:
songs.append(row)
return songs
@readcursor
def get_genres(self, cursor, genre_id=None):
@cursor
def get_genres(self, c, genre_id=None):
genres = []
q = "SELECT * FROM genres"
params = []
@ -342,19 +342,19 @@ class PysonicDatabase(object):
params.append(genre_id)
if conditions:
q += " WHERE " + " AND ".join(conditions)
cursor.execute(q, params)
for row in cursor:
c.execute(q, params)
for row in c:
genres.append(row)
return genres
@readcursor
def get_cover(self, cursor, coverid):
@cursor
def get_cover(self, c, coverid):
cover = None
for cover in cursor.execute("SELECT * FROM covers WHERE id = ?", (coverid, )):
for cover in c.execute("SELECT * FROM covers WHERE id = ?", (coverid, )):
return cover
@readcursor
def get_subsonic_musicdir(self, cursor, dirid):
@cursor
def get_subsonic_musicdir(self, c, dirid):
"""
The world is a harsh place.
Again, this bullshit exists only to serve subsonic clients. Given a directory ID it returns a dict containing:
@ -367,7 +367,7 @@ class PysonicDatabase(object):
"""
# find directory
dirinfo = None
for dirinfo in cursor.execute("SELECT * FROM dirs WHERE id = ?", (dirid, )):
for dirinfo in c.execute("SELECT * FROM dirs WHERE id = ?", (dirid, )):
pass
assert dirinfo
@ -375,7 +375,7 @@ class PysonicDatabase(object):
# see if it matches the artists or albums table
artist = None
for artist in cursor.execute("SELECT * FROM artists WHERE dir = ?", (dirid, )):
for artist in c.execute("SELECT * FROM artists WHERE dir = ?", (dirid, )):
pass
# if artist:
@ -383,7 +383,7 @@ class PysonicDatabase(object):
if artist:
ret = ("artist", dirinfo, artist)
children = []
for album in cursor.execute("SELECT * FROM albums WHERE artistid = ?", (artist["id"], )):
for album in c.execute("SELECT * FROM albums WHERE artistid = ?", (artist["id"], )):
children.append(("album", album))
ret[2]['children'] = children
return ret
@ -391,45 +391,45 @@ class PysonicDatabase(object):
# else if album:
# get child tracks
album = None
for album in cursor.execute("SELECT * FROM albums WHERE dir = ?", (dirid, )):
for album in c.execute("SELECT * FROM albums WHERE dir = ?", (dirid, )):
pass
if album:
ret = ("album", dirinfo, album)
artist_info = cursor.execute("SELECT * FROM artists WHERE id = ?", (album["artistid"], )).fetchall()[0]
artist_info = c.execute("SELECT * FROM artists WHERE id = ?", (album["artistid"], )).fetchall()[0]
children = []
for song in cursor.execute("SELECT * FROM songs WHERE albumid = ? ORDER BY track, title ASC;", (album["id"], )):
for song in c.execute("SELECT * FROM songs WHERE albumid = ? ORDER BY track, title ASC;", (album["id"], )):
song["_artist"] = artist_info
children.append(("song", song))
ret[2]['children'] = children
return ret
# Playlist related
@readcursor
def add_playlist(self, cursor, ownerid, name, song_ids, public=False):
@cursor
def add_playlist(self, c, ownerid, name, song_ids, public=False):
"""
Create a playlist
"""
now = time()
cursor.execute("INSERT INTO playlists (ownerid, name, public, created, changed) VALUES (?, ?, ?, ?, ?)",
(ownerid, name, public, now, now))
plid = cursor.lastrowid
c.execute("INSERT INTO playlists (ownerid, name, public, created, changed) VALUES (?, ?, ?, ?, ?)",
(ownerid, name, public, now, now))
plid = c.lastrowid
for song_id in song_ids:
self.add_to_playlist(cursor, plid, song_id)
cursor.execute("COMMIT")
self.add_to_playlist(c, plid, song_id)
c.execute("COMMIT")
@readcursor
def add_to_playlist(self, cursor, playlist_id, song_id):
@cursor
def add_to_playlist(self, c, playlist_id, song_id):
# TODO deal with order column
cursor.execute("INSERT INTO playlist_entries (playlistid, songid) VALUES (?, ?)", (playlist_id, song_id))
c.execute("INSERT INTO playlist_entries (playlistid, songid) VALUES (?, ?)", (playlist_id, song_id))
@readcursor
def get_playlist(self, cursor, playlist_id):
return cursor.execute("SELECT * FROM playlists WHERE id=?", (playlist_id, )).fetchone()
@cursor
def get_playlist(self, c, playlist_id):
return c.execute("SELECT * FROM playlists WHERE id=?", (playlist_id, )).fetchone()
@readcursor
def get_playlist_songs(self, cursor, playlist_id):
@cursor
def get_playlist_songs(self, c, playlist_id):
songs = []
q = """
SELECT
@ -451,65 +451,65 @@ class PysonicDatabase(object):
WHERE pe.playlistid = ?
ORDER BY pe.'order' ASC;
"""
for row in cursor.execute(q, (playlist_id, )):
for row in c.execute(q, (playlist_id, )):
songs.append(row)
return songs
@readcursor
def get_playlists(self, cursor, user_id):
@cursor
def get_playlists(self, c, user_id):
playlists = []
for row in cursor.execute("SELECT * FROM playlists WHERE ownerid=? or public=1", (user_id, )):
for row in c.execute("SELECT * FROM playlists WHERE ownerid=? or public=1", (user_id, )):
playlists.append(row)
return playlists
@readcursor
def remove_index_from_playlist(self, cursor, playlist_id, index):
cursor.execute("DELETE FROM playlist_entries WHERE playlistid=? LIMIT ?, 1", (playlist_id, index, ))
cursor.execute("COMMIT")
@readcursor
def empty_playlist(self, cursor, playlist_id):
#TODO combine with # TODO combine with
cursor.execute("DELETE FROM playlist_entries WHERE playlistid=?", (playlist_id, ))
cursor.execute("COMMIT")
@readcursor
def delete_playlist(self, cursor, playlist_id):
cursor.execute("DELETE FROM playlists WHERE id=?", (playlist_id, ))
cursor.execute("COMMIT")
@readcursor
def update_album_played(self, cursor, album_id, last_played=None):
cursor.execute("UPDATE albums SET played=? WHERE id=?", (last_played, album_id, ))
cursor.execute("COMMIT")
@readcursor
def increment_album_plays(self, cursor, album_id):
cursor.execute("UPDATE albums SET plays = plays + 1 WHERE id=?", (album_id, ))
cursor.execute("COMMIT")
@readcursor
def increment_track_plays(self, cursor, track_id):
cursor.execute("UPDATE songs SET plays = plays + 1 WHERE id=?", (track_id, ))
cursor.execute("COMMIT")
@cursor
def remove_index_from_playlist(self, c, playlist_id, index):
c.execute("DELETE FROM playlist_entries WHERE playlistid=? LIMIT ?, 1", (playlist_id, index, ))
c.execute("COMMIT")
@cursor
def empty_playlist(self, c, playlist_id):
#TODO combine with ??
c.execute("DELETE FROM playlist_entries WHERE playlistid=?", (playlist_id, ))
c.execute("COMMIT")
@cursor
def delete_playlist(self, c, playlist_id):
c.execute("DELETE FROM playlists WHERE id=?", (playlist_id, ))
c.execute("COMMIT")
@cursor
def update_album_played(self, c, album_id, last_played=None):
c.execute("UPDATE albums SET played=? WHERE id=?", (last_played, album_id, ))
c.execute("COMMIT")
@cursor
def increment_album_plays(self, c, album_id):
c.execute("UPDATE albums SET plays = plays + 1 WHERE id=?", (album_id, ))
c.execute("COMMIT")
@cursor
def increment_track_plays(self, c, track_id):
c.execute("UPDATE songs SET plays = plays + 1 WHERE id=?", (track_id, ))
c.execute("COMMIT")
# User related
@readcursor
def add_user(self, cursor, username, password, is_admin=False):
cursor.execute("INSERT INTO users (username, password, admin) VALUES (?, ?, ?)",
(username, hash_password(password), is_admin))
cursor.execute("COMMIT")
@readcursor
def update_user(self, cursor, username, password, is_admin=False):
cursor.execute("UPDATE users SET password=?, admin=? WHERE username=?;",
(hash_password(password), is_admin, username))
cursor.execute("COMMIT")
@readcursor
def get_user(self, cursor, user):
@cursor
def add_user(self, c, username, password, is_admin=False):
c.execute("INSERT INTO users (username, password, admin) VALUES (?, ?, ?)",
(username, hash_password(password), is_admin))
c.execute("COMMIT")
@cursor
def update_user(self, c, username, password, is_admin=False):
c.execute("UPDATE users SET password=?, admin=? WHERE username=?;",
(hash_password(password), is_admin, username))
c.execute("COMMIT")
@cursor
def get_user(self, c, user):
try:
column = "id" if type(user) is int else "username"
return cursor.execute("SELECT * FROM users WHERE {}=?;".format(column), (user, )).fetchall()[0]
return c.execute("SELECT * FROM users WHERE {}=?;".format(column), (user, )).fetchall()[0]
except IndexError:
raise NotFoundError("User doesn't exist")

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