station-test-api/catch/equipment/model/EquipmentType.php

<?php
/*
 * @Descripttion: 
 * @version: 1.0.0
 * @Author: likang
 * @Date: 2022-06-17 15:45:06
 * @LastEditors: likang
 * @LastEditTime: 2022-06-21 13:57:42
 */

namespace catchAdmin\equipment\model;

use catcher\base\CatchModel as Model;
use think\Model as ThinkModel;

class EquipmentType extends Model
{
    // 表名
    public $name = 'equipment_type';
    // 数据库字段映射
    public $field = array(
        'id',
        // 父类的id
        'pid',
        // 1 有效  -1 无效
        'status',
        // 名称
        'name',
        // 创建人ID
        'creator_id',
        // 创建时间
        'created_at',
        // 更新时间
        'updated_at',
        // 软删除
        'deleted_at',
        //顺序
        'order'
    );
    public function getParentNamebyChildId($id)
    {
        $pid =$this->where('id',$id)->value('pid');
        $name =  $this->where('id',$pid)->value('name');
        return $name;
    }

}