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from common import utils
from db.db_manager import DbManager
class Artist:
def __init__(self, id=None, **kwargs):
if id is not None:
db = DbManager()
cursor = db.cursor()
for row in cursor.execute("SELECT * FROM artist WHERE id = ?",
(id,)):
setattr(self, "id", id)
setattr(self, "name", row[1])
setattr(self, "sortname", row[2])
setattr(self, "musicbrainz_artistid", row[3])
else:
for (key, value) in kwargs.items():
setattr(self, key, value)
def delete(self):
db = DbManager()
cursor = db.cursor()
for album in self.albums:
album.delete()
delete_sql = "DELETE FROM artist WHERE id = ?"
cursor.execute(delete_sql, (self.id,))
delete_track_rel_sql = "DELETE FROM artist_track WHERE artist_id = ?"
cursor.execute(delete_track_rel_sql, (self.id,))
delete_album_rel_sql = "DELETE FROM album_artist WHERE artist_id = ?"
cursor.execute(delete_album_rel_sql, (self.id,))
return True
@property
def tracks(self):
from models.track import Track
if not hasattr(self, "_tracks"):
setattr(self, "_tracks", [])
db = DbManager()
cursor = db.cursor()
for row in cursor.execute("""SELECT track.* FROM track
INNER JOIN artist_track ON track.id =
artist_track.track_id WHERE artist_id = ?
ORDER BY name ASC""", (self.id,)):
track = Track(id=row[0], tracknumber=row[1], name=row[2],
grouping=row[3], filename=row[4])
self._tracks.append(track)
return self._tracks
@property
def albums(self):
from models.album import Album
if not hasattr(self, "_albums"):
setattr(self, "_albums", [])
db = DbManager()
cursor = db.cursor()
for row in cursor.execute("""SELECT album.* FROM album
INNER JOIN album_artist ON album.id =
album_artist.album_id WHERE artist_id = ?
ORDER BY date ASC""", (self.id,)):
album = Album(id=row[0], name=row[1], date=row[2])
self._albums.append(album)
return self._albums
def save(self):
dirty_attributes = {}
# check if the internal dict has been modified
for (attr, value) in self.__dict__.items():
if self.__data[attr] != getattr(self, attr):
dirty_attributes[attr] = value
if len(dirty_attributes) > 0:
db = DbManager()
cursor = db.cursor()
set_clause = utils.update_clause_from_dict(dirty_attributes)
dirty_attributes[id] = self.id
sql = " ".join(("UPDATE artist"), set_clause, "WHERE id = :id")
cursor.execute(sql, dirty_attributes)
def search(**search_params):
"""Find an artist with the given params
Args:
name: dict, with 'data' and 'operator' keys
sortname: dict, with 'data' and 'operator' keys
musicbrainz_artist_id: dict, with 'data' and 'operator' keys
"""
artists = []
db = DbManager()
cursor = db.cursor()
# unpack search params
where_params = {}
value_params = {}
for (attr, value) in search_params.items():
where_params[attr] = value["operator"]
value_params[attr] = value["data"]
where_clause = utils.make_where_clause(where_params)
result = []
if where_clause:
statement = " ".join(("SELECT * FROM artist", where_clause))
result = cursor.execute(statement, value_params)
else:
result = cursor.execute("SELECT * FROM artist")
for row in result:
artists.append(
Artist(id=row[0], name=row[1], sortname=row[2],
musicbrainz_artistid=row[3])
)
return artists
def all(order="sortname", direction="ASC", limit=None, offset=None):
db = DbManager()
cursor = db.cursor()
artists = []
select_string = """SELECT * FROM artist ORDER BY %s %s""" % (order,
direction)
if limit is not None and offset is not None:
select_string = " ".join((select_string,
"LIMIT %s OFFSET %s" % (limit, offset)))
result = cursor.execute(select_string)
for row in result:
artists.append(
Artist(id=row[0], name=row[1], sortname=row[2],
musicbrainz_artistid=row[3])
)
return artist
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