SickGear/sickbeard/databases/cache_db.py
Prinz23 c1d3487a21 Change increase namecache size and fix deleting items from it when at capacity.
Add thread lock to NameParserCache.
Add exception handling for add to cache.
Change increase NameParserCache to 1000 entries.
Change NameParserCache to OrderedDefaultdict.
Add move_to_end to OrderedDefaultdict class (backported from python 3).
Add first_key, last_key to OrderedDefaultdict.
Change use much faster first_key in NameParserCache.
Change remove import of python pre 2.7 OrderedDict.
2018-04-17 23:59:20 +01:00

107 lines
4.4 KiB
Python

# Author: Nic Wolfe <nic@wolfeden.ca>
# URL: http://code.google.com/p/sickbeard/
#
# This file is part of SickGear.
#
# SickGear 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.
#
# SickGear 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 SickGear. If not, see <http://www.gnu.org/licenses/>.
from collections import OrderedDict
from sickbeard import db
import re
MIN_DB_VERSION = 1
MAX_DB_VERSION = 4
TEST_BASE_VERSION = None # the base production db version, only needed for TEST db versions (>=100000)
# Add new migrations at the bottom of the list; subclass the previous migration.
class InitialSchema(db.SchemaUpgrade):
def __init__(self, connection):
super(InitialSchema, self).__init__(connection)
self.queries = OrderedDict([
('base', [
'CREATE TABLE lastUpdate(provider TEXT, time NUMERIC)',
'CREATE TABLE lastSearch(provider TEXT, time NUMERIC)',
'CREATE TABLE db_version(db_version INTEGER)',
'INSERT INTO db_version(db_version) VALUES (1)',
'CREATE TABLE network_timezones(network_name TEXT PRIMARY KEY, timezone TEXT)'
]),
('consolidate_providers', [
'CREATE TABLE provider_cache(provider TEXT, name TEXT, season NUMERIC, episodes TEXT,'
' indexerid NUMERIC, url TEXT UNIQUE, time NUMERIC, quality TEXT, release_group TEXT, version NUMERIC)',
'CREATE TABLE network_conversions('
'tvdb_network TEXT PRIMARY KEY, tvrage_network TEXT, tvrage_country TEXT)',
'CREATE INDEX tvrage_idx ON network_conversions(tvrage_network, tvrage_country)'
]),
('add_backlogparts', [
'CREATE TABLE backlogparts('
'part NUMERIC NOT NULL, indexer NUMERIC NOT NULL, indexerid NUMERIC NOT NULL)',
'CREATE TABLE lastrecentsearch(name TEXT PRIMARY KEY NOT NULL, datetime NUMERIC NOT NULL)'
]),
('add_provider_fails', [
'CREATE TABLE provider_fails(prov_name TEXT, fail_type INTEGER, fail_code INTEGER, fail_time NUMERIC)',
'CREATE INDEX idx_prov_name_error ON provider_fails (prov_name)',
'CREATE UNIQUE INDEX idx_prov_errors ON provider_fails (prov_name, fail_time)',
'CREATE TABLE provider_fails_count(prov_name TEXT PRIMARY KEY,'
' failure_count NUMERIC, failure_time NUMERIC,'
' tmr_limit_count NUMERIC, tmr_limit_time NUMERIC, tmr_limit_wait NUMERIC)'
])
])
def test(self):
return self.hasTable('lastUpdate')
def execute(self):
self.do_query(self.queries.values())
self.setDBVersion(MAX_DB_VERSION)
def backup(self):
db.backup_database('cache.db', self.checkDBVersion())
class ConsolidateProviders(InitialSchema):
def test(self):
return 1 < self.checkDBVersion()
def execute(self):
self.backup()
keep_tables = {'lastUpdate', 'lastSearch', 'db_version',
'network_timezones', 'network_conversions', 'provider_cache'}
# old provider_cache is dropped before re-creation
self.do_query(['DROP TABLE [provider_cache]'] + self.queries['consolidate_providers'] +
['DROP TABLE [%s]' % t for t in (set(self.listTables()) - keep_tables)])
self.finish(True)
class AddBacklogParts(ConsolidateProviders):
def test(self):
return 2 < self.checkDBVersion()
def execute(self):
self.backup()
self.do_query(self.queries['add_backlogparts'] +
['DROP TABLE [%s]' % t for t in ('scene_names', 'scene_exceptions_refresh', 'scene_exceptions')])
self.finish(True)
class AddProviderFailureHandling(AddBacklogParts):
def test(self):
return 3 < self.checkDBVersion()
def execute(self):
self.backup()
self.do_query(self.queries['add_provider_fails'])
self.finish()