Python rollback示例

示例#1

文件： xmlsetup.py 项目： AdaFormacion/RootTheBox

def _xml_file_import(filename):
    ''' Parse and import a single XML file '''
    logging.debug("Processing: %s" % filename)
    try:
        tree = ET.parse(filename)
        xml_root = tree.getroot()
        levels = get_child_by_tag(xml_root, "gamelevels")
        create_levels(levels)
        corporations = get_child_by_tag(xml_root, "corporations")
        create_corps(corporations)
        logging.debug("Done processing: %s" % filename)
        dbsession.commit()
        return True
    except:
        dbsession.rollback()
        logging.exception("Exception raised while parsing %s, rolling back changes" % filename)
        return False

示例#2

def _xml_file_import(filename):
    ''' Parse and import a single XML file '''
    logging.debug("Processing: %s" % filename)
    try:
        tree = ET.parse(filename)
        xml_root = tree.getroot()
        levels = get_child_by_tag(xml_root, "gamelevels")
        create_levels(levels)
        corporations = get_child_by_tag(xml_root, "corporations")
        create_corps(corporations)
        logging.debug("Done processing: %s" % filename)
        dbsession.commit()
        return True
    except:
        dbsession.rollback()
        logging.exception(
            "Exception raised while parsing %s, rolling back changes" %
            filename)
        return False