emmental/db/artist.py
Anna Schumaker 94f08dcd06 db: Give Artists a function for listing their Albums
Signed-off-by: Anna Schumaker <Anna@NoWheyCreamery.com>
2021-08-23 13:13:25 -04:00

56 lines
1.7 KiB
Python

# Copyright 2021 (c) Anna Schumaker.
#
# Table: artists
# +----------+------+------+
# | artistid | name | sort |
# +----------+------+------+
#
# Index: artist_index
# +------------------+
# | name -> artistid |
# +------------------+
from . import album
from . import execute
from . import objects
class Artist(objects.Tag):
def do_get_column(self, column):
return execute(f"SELECT {column} FROM artists "
"WHERE artistid=?", [ self.rowid ])
def albums(self):
cursor = execute(f"SELECT albumid FROM albums "
"WHERE artistid=?", [ self.rowid ])
return [ album.Album(row["albumid"]) for row in cursor.fetchall() ]
class ArtistTable(objects.Table):
def __init__(self):
objects.Table.__init__(self, "artists", Artist)
def do_create(self):
execute("CREATE TABLE IF NOT EXISTS artists "
"(artistid INTEGER PRIMARY KEY, "
" name TEXT UNIQUE, "
" sort TEXT)")
execute("CREATE INDEX IF NOT EXISTS artist_index "
"ON artists(name)")
def do_insert(self, name, sort):
return execute("INSERT INTO artists (name, sort) "
"VALUES (?, ?)", (name, sort.casefold()))
def do_delete(self, artist):
return execute("DELETE FROM artists WHERE artistid=?", [ int(artist) ])
def do_get(self, rowid):
return execute("SELECT artistid FROM artists "
"WHERE artistid=?", [ rowid ])
def do_lookup(self, name, sort=None):
return execute("SELECT artistid FROM artists "
"WHERE name=?", [ name ])
Table = ArtistTable()