community-manage/app/Console/Commands/UpdateTopicUseCount.php

<?php
/**
 * Created by PhpStorm.
 * User: Administrator
 * Date: 2019/8/13
 * Time: 11:50
 */
namespace App\Console\Commands;


use App\Models\Post;
use App\Models\Topic;
use Illuminate\Console\Command;

class UpdateTopicUseCount extends Command
{
    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'post:update_topic_use_count';

    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = '更新话题使用数';

    /**
     * Create a new command instance.
     *
     * @return void
     */
    public function __construct(Post $post,
                                Topic $topic)
    {
        parent::__construct();
        $this->post = $post;
        $this->topic = $topic;
    }

    /**
     * Execute the console command.
     *
     * @return mixed
     */
    public function handle()
    {
        $this->line("开始更新话题使用数");
        $topic = [];

        $bar = $this->output->createProgressBar($this->post->withTrashed()->count());
        $this->post->withTrashed()->chunk(100, function($posts) use ($bar, &$topic){
            foreach($posts as $post) {
                $topicIds = explode(',', $post->topic_ids);
                foreach($topicIds as $id){
                    if(isset($topic[$id])){
                        $topic[$id] += 1;
                    }else{
                        $topic[$id] = 1;
                    }
                }
                $bar->advance();
            }

            usleep(100000);
        });
        foreach($topic as $id => $useCount){
            $this->topic->where('id', $id)->update(['use_count' => $useCount]);
        }
        $bar->finish();
        $this->line("\n更新话题使用数结束");


    }
}