lihai-oa/app/project/validate/ProjectCheck.php

<?php
namespace app\project\validate;
use think\Validate;
use think\facade\Db;

class ProjectCheck extends Validate
{
    protected $rule = [
        'name'         => 'require|unique:project',
        'start_time'   => 'require',
        'end_time'     => 'require',
        'director_uid' => 'require',
        'content'      => 'require',
        'code'         => 'alphaNum|length:5,10|unique:project',
        'id'           => 'require|checkProject'
    ];

    protected $message = [
        'name.require'           => '项目名称不能为空',
        'name.unique'            => '项目已存在',
        'start_time.require'     => '项目开始时间不能为空',
        'end_time.require'       => '项目结束时间不能为空',
        'director_uid.require'   => '项目负责人不能为空',
        'content.require'        => '项目简介不能为空',
        'code.alphaNum'          => '项目代码只能为5至10为字母和数字',
        'code.length'            => '项目代码只能为5至10为字母和数字',
        'code.unique'            => '同样的项目代码已经存在',
        'id.require'             => '缺少更新条件',
    ];

    protected $scene = [
        'add'  => ['name','start_time','end_time','director_uid','content','code'],
        'edit' => ['id', 'name','start_time','end_time','director_uid','content','code']
    ];

    public function checkProject($id, $rule, $data)
    {
        $project = Db::name('project')->where([
            'id' => $id
        ])->findOrEmpty();
        if (empty($project)) {
            return '项目不存在';
        }
        $oProject = Db::name('project')->where([
            'name' => $data['name']
        ])->findOrEmpty();
        if (!empty($oProject) && ($oProject['id']  != $id)) {
            return '项目已存在';
        }
        return true;
    }

}