NN2020040201/app/index/service/Goods.php

<?php
/**
 * 短信服务
 * @author wesmiler
 */

namespace app\index\service;
use \app\index\model\GoodsModel;
class Goods
{
    /**
     * 验证预售商品是否已存在
     * @param $productId 预售商品原始ID
     * @return bool|mixed
     */
    public static function checkGoodsExists($productId){
        if(empty($productId)){
            return false;
        }
        return GoodsModel::where(['product_id'=> $productId])->value('id');
    }
}