water/server/plugin/saiadmin/app/model/miniProgram/MiniProgramHelpArticle.php

<?php
// +----------------------------------------------------------------------
// | saiadmin [ saiadmin快速开发框架 ]
// +----------------------------------------------------------------------
namespace plugin\saiadmin\app\model\miniProgram;

use plugin\saiadmin\basic\think\BaseModel;

/**
 * 小程序帮助中心问题模型
 */
class MiniProgramHelpArticle extends BaseModel
{
    protected $pk = 'id';

    protected $table = 'sa_mini_program_help_article';

    public function searchCategoryAttr($query, $value): void
    {
        if ($value !== '' && $value !== null) {
            $query->where('category', '=', $value);
        }
    }
}