db.py 文件源码

def __init__(self, publisher, settings):
        self.logger = logging.getLogger(' Db')
        try:
            if not os.path.exists(settings.db_dir):
                self.logger.info("db directory doesn't exist - creating...")
                os.makedirs(settings.db_dir)
        except IOError as e:
            self.logger.critical("Couldn't create directory " + settings.db_dir + " : " + str(e))
        self.db_file = 'db.json'
        db_path = settings.db_dir + '/' + self.db_file
        self.publisher = publisher
        try:
            if not os.path.isfile(db_path):
                self.logger.info("db file doesn't exist - creating...")
                self.db = TinyDB(db_path)
                self.db.table('worksets')
                self.db.purge_table('default')
        except IOError as e:
            self.logger.critical("Couldn't create db file: " + str(e))
        self.db = TinyDB(db_path)
        self.w_query = Query()