def __init__(self):
self.database_config = dict(settings.DATABASE_CONFIG)
self.database_config['register_hstore'] = False
self.database_name = self.database_config.pop('name')
self.database = MeteredPostgresqlExtDatabase(self.database_name, **self.database_config)
self.app = None
self.pid = os.getpid()
class Database(object):
def __init__(self):
self.database_config = dict(settings.DATABASE_CONFIG)
self.database_config['register_hstore'] = False
self.database_name = self.database_config.pop('name')
self.database = MeteredPostgresqlExtDatabase(self.database_name, **self.database_config)
self.app = None
self.pid = os.getpid()
def init_app(self, app):
self.app = app
self.register_handlers()
def connect_db(self):
self._check_pid()
self.database.reset_metrics()
self.database.connect()
def close_db(self, exc):
self._check_pid()
if not self.database.is_closed():
self.database.close()
def _check_pid(self):
current_pid = os.getpid()
if self.pid != current_pid:
logging.info("New pid detected (%d!=%d); resetting database lock.", self.pid, current_pid)
self.pid = os.getpid()
self.database._conn_lock = threading.Lock()
def register_handlers(self):
self.app.before_request(self.connect_db)
self.app.teardown_request(self.close_db)