book_admin/application/admin/validate/ManageCover.php

<?php

namespace app\admin\validate;

use think\Validate;

class ManageCover extends Validate
{
    /**
     * 验证规则
     */
    protected $rule = [
        'image'  => 'require',
        'status' => 'require',
        'sex'    => 'require',
        'type'   => 'require'
    ];
    /**
     * 提示消息
     */
    protected $message = [
        'image.require'  => '图片不能为空',
        'status.require' => '状态不能为空',
        'sex.require'    => '频道不能为空',
        'type.require'   => '类型不能为空'
    ];
    /**
     * 验证场景
     */
    protected $scene = [
        'add'  => [],
        'edit' => [],
    ];
    
}