def get_next_id(self):
        try:
            query = {'_id': 'last_id'}
            update = {'$inc': {'id': 1}}
            fn = self.db.internal.find_and_modify
            row = fn(query, update, upsert=True, new=True)
        except Exception as e:
            raise DatabaseException(e)
        return row['id']
def downloadIndexPage(self, uselessArg1=None):
        logging.info("download index page")
        strIndexHtmlFolderPath = self.SOURCE_HTML_BASE_FOLDER_PATH + u"\\TECHORANGE"
        if not os.path.exists(strIndexHtmlFolderPath):
            os.mkdir(strIndexHtmlFolderPath) #mkdir source_html/TECHORANGE/
        #科技報橘首頁
        self.driver.get("https://buzzorange.com/techorange/")
        #儲存 html
        strIndexHtmlFilePath = strIndexHtmlFolderPath + u"\\index.html"
        self.utility.overwriteSaveAs(strFilePath=strIndexHtmlFilePath, unicodeData=self.driver.page_source)