PlexKodiConnect/resources/lib/kodi_db/common.py

156 lines
5.7 KiB
Python

#!/usr/bin/env python
# -*- coding: utf-8 -*-
from __future__ import absolute_import, division, unicode_literals
from builtins import object
from threading import Lock
from .. import db, path_ops
KODIDB_LOCK = Lock()
# Names of tables we generally leave untouched and e.g. don't wipe
UNTOUCHED_TABLES = ('version', 'versiontagscan')
class KodiDBBase(object):
"""
Kodi database methods used for all types of items
"""
def __init__(self, texture_db=False, kodiconn=None, artconn=None,
lock=True):
"""
Allows direct use with a cursor instead of context mgr
"""
self._texture_db = texture_db
self.lock = lock
self.kodiconn = kodiconn
self.cursor = self.kodiconn.cursor() if self.kodiconn else None
self.artconn = artconn
self.artcursor = self.artconn.cursor() if self.artconn else None
def __enter__(self):
if self.lock:
KODIDB_LOCK.acquire()
self.kodiconn = db.connect(self.db_kind)
self.cursor = self.kodiconn.cursor()
self.artconn = db.connect('texture') if self._texture_db \
else None
self.artcursor = self.artconn.cursor() if self._texture_db else None
return self
def __exit__(self, e_typ, e_val, trcbak):
try:
if e_typ:
# re-raise any exception
return False
self.kodiconn.commit()
if self.artconn:
self.artconn.commit()
finally:
self.kodiconn.close()
if self.artconn:
self.artconn.close()
if self.lock:
KODIDB_LOCK.release()
def art_urls(self, kodi_id, kodi_type):
return (x[0] for x in
self.cursor.execute('SELECT url FROM art WHERE media_id = ? AND media_type = ?',
(kodi_id, kodi_type)))
def artwork_generator(self, kodi_type, limit, offset):
query = 'SELECT url FROM art WHERE type == ? LIMIT ? OFFSET ?'
return (x[0] for x in
self.cursor.execute(query, (kodi_type, limit, offset)))
def add_artwork(self, artworks, kodi_id, kodi_type):
"""
Pass in an artworks dict (see PlexAPI) to set an items artwork.
"""
for kodi_art, url in artworks.items():
self.add_art(url, kodi_id, kodi_type, kodi_art)
@db.catch_operationalerrors
def add_art(self, url, kodi_id, kodi_type, kodi_art):
"""
Adds or modifies the artwork of kind kodi_art (e.g. 'poster') in the
Kodi art table for item kodi_id/kodi_type. Will also cache everything
except actor portraits.
"""
self.cursor.execute('''
INSERT INTO art(media_id, media_type, type, url)
VALUES (?, ?, ?, ?)
''', (kodi_id, kodi_type, kodi_art, url))
def modify_artwork(self, artworks, kodi_id, kodi_type):
"""
Pass in an artworks dict (see PlexAPI) to set an items artwork.
"""
for kodi_art, url in artworks.items():
self.modify_art(url, kodi_id, kodi_type, kodi_art)
@db.catch_operationalerrors
def modify_art(self, url, kodi_id, kodi_type, kodi_art):
"""
Adds or modifies the artwork of kind kodi_art (e.g. 'poster') in the
Kodi art table for item kodi_id/kodi_type. Will also cache everything
except actor portraits.
"""
self.cursor.execute('''
SELECT url FROM art
WHERE media_id = ? AND media_type = ? AND type = ?
LIMIT 1
''', (kodi_id, kodi_type, kodi_art,))
try:
# Update the artwork
old_url = self.cursor.fetchone()[0]
except TypeError:
# Add the artwork
self.cursor.execute('''
INSERT INTO art(media_id, media_type, type, url)
VALUES (?, ?, ?, ?)
''', (kodi_id, kodi_type, kodi_art, url))
else:
if url == old_url:
# Only cache artwork if it changed
return
self.delete_cached_artwork(old_url)
self.cursor.execute('''
UPDATE art SET url = ?
WHERE media_id = ? AND media_type = ? AND type = ?
''', (url, kodi_id, kodi_type, kodi_art))
def delete_artwork(self, kodi_id, kodi_type):
self.cursor.execute('SELECT url FROM art WHERE media_id = ? AND media_type = ?',
(kodi_id, kodi_type, ))
for row in self.cursor.fetchall():
self.delete_cached_artwork(row[0])
@db.catch_operationalerrors
def delete_cached_artwork(self, url):
try:
self.artcursor.execute("SELECT cachedurl FROM texture WHERE url = ? LIMIT 1",
(url, ))
cachedurl = self.artcursor.fetchone()[0]
except TypeError:
# Could not find cached url
pass
else:
# Delete thumbnail as well as the entry
path = path_ops.translate_path("special://thumbnails/%s"
% cachedurl)
if path_ops.exists(path):
path_ops.rmtree(path, ignore_errors=True)
self.artcursor.execute("DELETE FROM texture WHERE url = ?", (url, ))
@db.catch_operationalerrors
def wipe(self):
"""
Completely wipes the corresponding Kodi database
"""
self.cursor.execute("SELECT name FROM sqlite_master WHERE type = 'table'")
tables = [i[0] for i in self.cursor.fetchall()]
for table in UNTOUCHED_TABLES:
if table in tables:
tables.remove(table)
for table in tables:
self.cursor.execute('DELETE FROM %s' % table)