result = {'widgettype': 'Message', 'options': {'title': 'Error', 'message': 'Invalid', 'type': 'error'}}

try:
    data = dict(params_kw)
    dbname = get_module_dbname('discount')

    async with DBPools().sqlorContext(dbname) as sor:
        await sor.U('discount_detail', data)

    result = {'widgettype': 'Message', 'options': {'title': 'Success', 'message': '折扣明细更新成功', 'type': 'success'}}

except Exception as e:
    result['options'] = {'title': 'Error', 'message': '更新失败: ' + str(e), 'type': 'error'}

return result