Laravel

Question

我有一个请求：

$comments = $post->comments()->with('replyComments:id,post_id,user_id,content,created_at,reply_comment_id')->orderBy('created_at', 'desc')->get();

当我尝试用 foreach 回应这个时，我有：

foreach ($comments as $comment) {
    echo $comment;
};

结果： {"id":383825,"post_id":553304,"user_id":6,"content":"test","created_at":"2022-04-28 15:16:19","reply_comment_id":null,"reply_comments":[{"id":383826,"post_id":553304,"user_id":6,"content":"reply test","created_at":"2022-04-28 16:20:16","reply_comment_id":383825}]}

但如果我这样做：

foreach ($comments as $comment) {
    echo $comment->replyComments; /* or $comment->reply_comments; */
};

结果是NULL

我怎么回显 reply_comments？

感谢您的帮助！

编辑更多细节：

$comments = $post->comments()->with('likes','replyComments')->orderBy('created_at', 'asc')->get(['id','post_id','user_id','content','created_at','reply_comment_id']);

    foreach($comments as $comment){
        dd($comment);
    }

$comments = $post->comments()->with('likes','replyComments')->orderBy('created_at', 'asc')->get(['id','post_id','user_id','content','created_at','reply_comment_id']);

    foreach($comments as $comment){
        dd($comment->likes);
    }

$comments = $post->comments()->with('likes','replyComments')->orderBy('created_at', 'asc')->get(['id','post_id','user_id','content','created_at','reply_comment_id']);

    foreach($comments as $comment){
        dd($comment->replyComments);
    }

关于点赞和回复评论，在Comment.php:

public function replyComments()
{
    return $this->hasMany(self::class, 'reply_comment_id', 'id');
}

public function likes()
{
    return $this->hasMany(\App\CommentLike::class, 'comment_id', 'id');
}

Answer 1

reply_comments 或 replyComments 不存在于输出 JSON 中。希望您在获取时错过了它！

$comments = $post->comments()->with('replyComments:replyComments')->orderBy('created_at', 'desc')->get();

这需要添加到获取代码中。

然后

foreach ($comments as $comment) {
    echo $comment->replyComments;
};

否则你可以使用数组。

displayData = [];
foreach ($comments as $comment) {
    displayData[] = $comment->replyComments;
};
echo displayData;

Answer 2

如果你想像 Youtube 一样在一个级别显示回复，你需要使用以下查询：

$post = Post::with('comments.replyComments')->find($id);
$comments = $post->comments;
$replies = $comments->replyComments;

Answer 3

使用 print_r($comment->replyComments) 而不是 echo。

Answer 4

`$comment->replyComments` is an array and you should put it in foreach:


 foreach($comment->replyComments as $item){
     echo $item;
 }

或写：

echo $comment->replyComments[0];

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