async def get_children(parent_id, data):
    children = []
    for item in data:
        if item['parentid'] == parent_id:
            child = {'id': item['id'], 'codeid': item['codeid'], 'parentid': item['parentid'], 'k': item['k'], 'v': item['v']}
            grandchildren = await get_children(item['id'], data)
            if grandchildren:
                child['son'] = grandchildren
            children.append(child)
    return children

async def transform_data(data):
    result = []
    for item in data:
        if item['parentid'] is None or item['parentid'] == '':
            parent = {'id': item['id'], 'codeid': item['codeid'], 'parentid': item['parentid'], 'k': item['k'], 'v': item['v']}
            children = await get_children(item['id'], data)
            if children:
                parent['son'] = children
            result.append(parent)
    return result

async def appCodesSearch(ns={}):
    """
    search new appcodes
      `id` VARCHAR(32) 'id',
      `name` VARCHAR(255) '编码名称',
      `hierarchy_flg` VARCHAR(1) '多级标志',
      `del_flg` VARCHAR(1)   DEFAULT '0' comment '删除标志',
      `create_at` TIMESTAMP   comment '创建时间戳'
    :param ns:
    :return:
    """
    db = DBPools()
    async with db.sqlorContext('kboss') as sor:
        try:
            ns['del_flg'] = '0'
            ns['sort'] = 'create_at'
            ns['order'] = 'desc'
            ns['page'] = ns.get('page') if ns.get('page') else 1
            if ns.get('kv'):
                if not ns.get('codeid'):
                    return {
                        "status": False,
                        "msg": "appCodes_kv search failed, the codeid is empty",
                        "data": ""
                    }
                app_code_result = await sor.R('appcodes_kv', ns)
                app_code_result = await transform_data(app_code_result.get('rows'))
            else:
                app_code_result = await sor.R('appcodes',ns)
            return {
                    "status": True,
                    "msg": "appCodes search success",
                    "data": app_code_result
            }
        except Exception as e:
            return  {
                "status": False,
                "msg": "appCodes search failed",
                "data": ""
            }
			

ret = await appCodesSearch(params_kw)
return ret