project/app/user/model/CompanyType.php

<?php
namespace app\user\model;

class CompanyType extends Base
{
//设置字段信息
    protected $schema = [
        'id'       =>'int',//
        'company_type'       =>'varchar',//企业类型
        'status'       =>'tinyint',//状态
        'is_del'       =>'tinyint',//
        'addtime'       =>'datetime',//
        'updatetime'       =>'datetime',//
    ];
    protected $createTime="addtime";
    protected $updateTime="updatetime";

    public static function checkType($type){
        $list=self::where("company_type",$type)->where("is_del",0)->findOrEmpty();
        if($list->isEmpty()){
           $create= self::create(["company_type"=>$type]);
            return $create->id;
        }
        return $list->id;
    }
}