community-manage/app/Transformers/Circle/PostListTransformer.php

<?php

/**
 * Created by PhpStorm.
 * User: Administrator
 * Date: 2019/6/6
 * Time: 14:08
 */

namespace App\Transformers\Circle;

use App\Models\Post;
use App\Traits\PostTrait;
use Illuminate\Support\Carbon;
use Illuminate\Support\Facades\Redis;
use League\Fractal\TransformerAbstract;

class PostListTransformer extends TransformerAbstract
{
    use PostTrait;

    public function __construct($circleId)
    {
        $this->circle_id = $circleId;
    }

    public function transform(Post $post)
    {
        $key = 'circle_articles_' . $this->circle_id;
        $isexists = Redis::zscore($key, $post['id']);
        return [
            'id' => $post['id'],
            'created_at' => Carbon::parse($post['created_at'])->toDateTimeString(),
            'uid' => $post['uid'],
            'username' => $post['username'],
            'topic' => $this->getTopic($post['topic_ids'], 1),
            'content' => subtext(strip_tags($post['content']), 20),
            'image' => $post['img'],
            'is_exists_circle' => $isexists ? 1 : 0,
            'circle_id' => $this->circle_id,
        ];
    }
}