community-service/app/Transformers/Circle/PictureListTransformer.php

<?php

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

namespace App\Transformers\Circle;

use App\Models\InterestCircle;
use App\Models\InterestCirclePicture;
use App\Traits\UserTrait;
use Illuminate\Support\Carbon;
use Illuminate\Support\Facades\Redis;
use League\Fractal\TransformerAbstract;

class PictureListTransformer extends TransformerAbstract
{
    use UserTrait;

    public function transform(InterestCirclePicture $interestCirclePicture)
    {
        $user = $this->formatUser($this->userInfo($interestCirclePicture['uid']));

        return [
            'id' => $interestCirclePicture['patch_num'],
            'user' => $user ? $user : new \stdClass(),
            'imgs' => $this->getImgs($interestCirclePicture),
            'created_at' => Carbon::parse($interestCirclePicture['created_at'])->toDateTimeString(),
        ];
    }

    public function getImgs(InterestCirclePicture $interestCirclePicture)
    {
        $imgs = [];
        $key = 'circle_picture_' . $interestCirclePicture['patch_num'];
        $tmp = Redis::get($key);
        if (empty($tmp)) {
            $picList = InterestCirclePicture::where('patch_num', $interestCirclePicture['patch_num'])->get();
            foreach ($picList as $pic) {
                $imgs[] = $pic->image;
            }
        } else {
            $imgs = json_decode($tmp, true);
        }

        return $imgs;
    }
}