xtu_mall/app/admin/validate/cms/Category.php

<?php
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// | 栏目验证
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namespace app\admin\validate\cms;

use think\Validate;

class Category extends Validate
{
    //定义验证规则
    protected $rule = [
        'parentid|上级栏目'  => 'require|number',
        'modelid|所属模型'   => 'require|number',
        'type|栏目类型'      => 'require|in:1,2,3',
        'catname|栏目标题'   => 'require',
        'catdir|唯一标识'    => 'require|alphaDash',
        'listorder|栏目排序' => 'require|number',
        'status|栏目状态'    => 'require|in:0,1',
        'url|链接地址'       => 'require',
    ];

    //定义验证提示
    protected $message = [
        'modelid.number' => '所属模型不得为空',
    ];

    protected $scene = [
        'page' => ['parentid', 'type', 'catname', 'catdir', 'image', 'listorder', 'status'],
        'list' => ['parentid', 'modelid', 'type', 'catname', 'catdir', 'image', 'listorder', 'status'],
        'link' => ['parentid', 'type', 'catname', 'catdir', 'image', 'listorder', 'status', 'url'],
    ];
}