community-service/app/Transformers/Circle/MessageListTransformer.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\InterestCircleMessage;
use App\Models\Post;
use App\Traits\PostTrait;
use App\Traits\UserTrait;
use Illuminate\Support\Carbon;
use Illuminate\Support\Facades\Redis;
use League\Fractal\TransformerAbstract;

class MessageListTransformer extends TransformerAbstract
{
    use UserTrait;

    public function transform(InterestCircleMessage $interestCircleMessage)
    {
        $user = $this->userInfo($interestCircleMessage['uid']);
        $imgs = [];
        foreach($interestCircleMessage->imgs as $img){
            $imgs[] = $img['img'];
        }
        return [
            'id' => $interestCircleMessage['id'],
            'created_at' => Carbon::parse($interestCircleMessage['created_at'])->diffForHumans(),
            'user' => $user ? $user : new \stdClass(),
            'content' => $interestCircleMessage['content'],
            'imgs' => $imgs,
            'good' => $interestCircleMessage['good'],
            'bad' => $interestCircleMessage['bad'],
            'comment_count' => $interestCircleMessage['comment_count'],
            'comment' => $this->getNewComment($interestCircleMessage['id']),
        ];
    }

    //获取内容最新评论
    public function getNewComment($id, $uid = 0)
    {
        $comment = [];
        $key = 'comment_like_' . $id;
        $commentKey = 'post_new_comment_' . $id;
        $commentData = Redis::GET($commentKey);
        if ($commentData) {
            $comment = json_decode($commentData, true);
            foreach ($comment as &$item) {
                $isLike = 0;
                if ($uid) {
                    $isLike = Redis::ZSCORE($key, $uid . '_' . $item['id']) ? 1 : 0;
                }
                $item['uid'] = intval($item['uid']);
                $item['is_like'] = $isLike;
                $item['like_count'] = Redis::ZCOUNT($key, $item['id'], $item['id']);
                $item['reply_count'] = 0;
                $item['reply'] = [];
            }
        } else {
            $comments = PostComment::where('post_id', $id)->where('parent_id', 0)->where('is_delete', 0)->orderBy('like_count', 'desc')->orderBy('id', 'desc')->limit(2)->get();
            foreach ($comments as $item) {
                $userComment = $this->userInfo($item->uid);
                $isLike = 0;
                if ($uid) {
                    $isLike = Redis::ZSCORE($key, $uid . '_' . $item->id) ? 1 : 0;
                }
                $likeCount = Redis::ZCOUNT($key, $item->id, $item->id);
                $comment[] = [
                    'id' => $item->id,
                    'uid' => intval($userComment['uid']),
                    'username' => $userComment['username'],
                    'content' => $item->is_delete ? '该评论已被删除' : $item->content,
                    'is_delete' => $item->is_delete,
                    'is_like' => $isLike,
                    'like_count' => $likeCount,
                    'reply_count' => 0,
                    'reply' => [],
                ];
            }
            Redis::SET($commentKey, json_encode($comment));
            Redis::EXPIRE($commentKey, 300);
        }
        sortArrByField($comment, 'like_count', true);
        return $comment;
    }
}