// 格式化保存数据
protected function _Format_Data($id, $data, $old) {
    $data = parent::_Format_Data($id, $data, $old);
    $old && $data[1]['updatetime'] = $old['updatetime']; // 更新时间赋值老数据
    return $data;
}

dayrui/App/Demo/Controllers/Member/Home.php

    /**
     * 获取内容
     * $id      内容id,新增为0
     * */
    protected function _Data($id = 0) {

        // 判断是否来至审核
        if (defined('IS_MODULE_VERIFY')) {
            $row = \Phpcmf\Service::M()->table(SITE_ID.'_'.$this->module['dirname'].'_verify')->get($id);
            if (!$row) {
                return [];
            } elseif ($this->uid != $row['uid']) {
                return [];
            }
            $data = dr_string2array($row['content']);
            $data['backinfo'] = dr_string2array($row['backinfo']);
            !$this->is_get_catid && $this->is_get_catid = (int)$row['catid'];
            // 栏目验证码
            $this->is_post_code = $this->is_hcategory ? $this->content_model->_hcategory_member_post_code() : dr_member_auth($this->member_authid, $this->member_cache['auth_module'][SITE_ID][$this->module['dirname']]['category'][$this->is_get_catid]['code']);
            return $data;
        }

        $row = $this->content_model->get_data($id);
        if (!$row) {
            return [];
        } elseif ($this->uid != $row['uid']) {
            return [];
        }

        // 判断是同步栏目数据
        if ($row['link_id'] > 0) {
            $row = $this->content_model->get_data($row['link_id']);
            if (!$row) {
                return [];
            }
            $this->replace_id = $id = $row['id'];
        }

        !$this->is_get_catid && $this->is_get_catid = (int)$row['catid'];

        // 栏目验证码
        $this->is_post_code = $this->is_hcategory ? $this->content_model->_hcategory_member_post_code() : dr_member_auth($this->member_authid, $this->member_cache['auth_module'][SITE_ID][$this->module['dirname']]['category'][$this->is_get_catid]['code']);

        // 更新时间
        $row['updatetime'] = $row['inputtime'];

//var_dump($row);
        return $row;
    }

dayrui/App/Demo/Controllers/Member/Home.php

$old['updatetime']

$old['inputtime']