jya-oa-api/application/common/validate/Dinner.php

<?php
namespace app\common\validate;

use think\Db;
use think\Validate;

class Dinner extends Validate{

    protected $rule = [
        'title|名称'  =>  'require',
        'cate_id|分类'  =>  'require',
        'day|售卖日期'  =>  'require|date|checkUnique',
    ];

    protected $message = [

    ];

    protected $scene = [

    ];

    protected function checkUnique($value,$rule,$data=[])
    {
        $info = Db::name('dinner')
            ->where('title',$data['title'])
            ->where('del',0)
            ->where('day',$data['day'])
            ->where('cate_id',$data['cate_id'])
            ->find();
        if($data['id'] <= 0 && $info){
            return '名称已被使用';
        }
        if($info && $data['id'] > 0 && $info['id'] != $data['id']){
            return '名称已被使用';
        }
        return true;
    }

}