mingde-bd/application/common/validate/ShopGoods.php

<?php

namespace app\common\validate;

use think\Db;
use think\Validate;

class ShopGoods extends Validate
{
    /**
     * 定义验证规则
     * 格式：'字段名' =>  ['规则1','规则2'...]
     *
     * @var array
     */
    protected $rule = [
        'title|商品名称'  =>  'require|length:1,20|checkUnique',
        'price|商品价格'  =>  'require|gt:0',
        'cate_id|商品分类'  =>  'require|gt:0',
        'img|商品图片'  =>  'require',
    ];

    /**
     * 定义错误信息
     * 格式：'字段名.规则名' =>  '错误信息'
     *
     * @var array
     */
    protected $message = [
        'cate_id.require'=>'商品分类不能为空',
        'cate_id.gt'=>'商品分类不能为空'
    ];

    protected function checkUnique($value, $rule, $data=[]){
        if(isset($data['id']) && $data['id'] > 0){
            $ret = Db::name('shop_goods')
                ->where('del',0)
                ->where('title',$data['title'])
                ->where('org_id',$data['org_id'])
                ->where('id','<>',$data['id'])
                ->find();
        }else{
            $ret = Db::name('shop_goods')
                ->where('del',0)
                ->where('title',$data['title'])
                ->where('org_id',$data['org_id'])
                ->find();
        }

        return $ret?'名称已被使用':true;
    }
}