project/app/admin/listener/PlatCat.php

<?php
declare (strict_types = 1);

namespace app\admin\listener;

use app\admin\model\Cat;
use app\admin\model\Platform;
class PlatCat
{
    /**
     * 事件监听处理
     *
     * @return mixed
     */
    public function handle($event)
    {
        if($event['info']=='cat'){
            $this->cat();
        }
        if($event['info']=='plat'){
            $this->plat();
        }
    }
    public function cat(){
       $info = Cat::where(['id'=>$event['data']['id']??[]])->field('id cat_id,fund_code,status,is_del,creater apply_name,createrid apply_id,addtime,updatetime')->select();
        if($info->isEmpty())return;
        $plat = Platform::where(['platform_type' => 1, 'is_del' => 0])->field('id')->select();
        if(!$plat->isEmpty()){
            $data = [];
            foreach ($info as $item){
               $temp= array_map(function($v)use($item){
                    $item['platform_id'] = $v['id'];
                    return $item;
                },$plat);
                $data = array_merge($data,$temp);
            }
            $this->save($data);
        }
    }
    /**
     * 批量保存
     * @param $data
     */
    protected function save($data){
        if(!empty($data)){
            $model = new \app\admin\model\CatPlat();
            try{
                $model->saveAll($data);
            }catch(\Exception $e){
               throw new \Exception($e->getMessage());
            }
        }
    }
}