我正在开发一个简单的社交网络,我正在处理回复部分。我将帖子/状态模型与用户关联如下,但当我尝试在视图中访问时,它返回空数组[]
。
在帖子模型中回复功能
public function postReply(Request $request, $statusId){
$this->validate($request, [
"reply-{$statusId}" => 'required|max:1000',
],
[
'required' => 'The reply body is required'
]
);
$post = Post::notReply()->find($statusId);
if(!$post){
return redirect('/');
}
if(!Auth::user()->isFriendsWith($post->user) && Auth::user()->id !== $post->user->id){
return redirect('/');
}
$post = Post::create([
'body' => $request->input("reply-{$statusId}"),
]);
$post->user()->associate(Auth::user());
$post->replies()->save($post);
return redirect()->back();
}
发布模型
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Post extends Model
{
protected $table = 'posts';
protected $fillable = ['body'];
public function user(){
return $this->belongsTo('App\User');
}
public function likes(){
return $this->hasMany('App\Like');
}
public function scopeNotReply($query){
return $query->whereNull('parent_id');
}
public function replies(){
return $this->hasMany('App\Post', 'parent_id');
}
}
帖子表
查看我通过$ post-&gt;回复访问回复的位置
<section class="row new-post">
<div class="col-md-6 col-md-offset-3">
<header><h3>What do you have to say?</h3></header>
<form action="{{ url('createpost') }}" method="post">
<div class="form-group">
<textarea class="form-control" name="body" id="new-post" rows="5" placeholder="Your Post"></textarea>
</div>
<button type="submit" class="btn btn-primary">Create Post</button>
<input type="hidden" value="{{ Session::token() }}" name="_token">
</form>
</div>
</section>
<section class="row posts">
<div class="col-md-6 col-md-offset-3">
<header><h3>What other people say...</h3></header>
@foreach($posts as $post)
<article class="post media" data-postid="{{ $post->id }}">
<a class="pull-left" href="{{ url('user', $post->user->username) }}">
<img class="media-object" alt="" src="{{ $post->user->getAvatarUrl() }}">
</a>
<div class="media-body">
<h4 class="media-heading"><a href="{{ url('user', $post->user->username) }}"> {{ $post->user->username }}</a></h4>
<p>{{ $post->body }}</p>
<ul class="list-inline">
<li>{{ $post->created_at->diffForHumans() }}</li>
<li><a href="#">Like</a></li>
<li>10 likes</li>
</ul>
{{ $post->replies }}
</div>
<form role="form" action="{{ url('createpost', $post->id )}}" method="post">
<div class="form-group{{ $errors->has("reply-{$post->id}") ? ' has-error': '' }}">
<textarea name="reply-{{ $post->id }}" class="form-control" rows="2" placeholder="Reply to this status"></textarea>
@if($errors->has("reply-{$post->id}"))
<span class="help-block">{{ $errors->first("reply-{$post->id}") }} </span>
@endif
</div>
<input type="submit" value="Reply" class="btn btn-default btn-sm">
<input type="hidden" name="_token" value="{{ Session::token() }}">
</form>
</article>
@endforeach
</div>
</section>
PS:我使用一个表来表示关系,即帖子和帖子表中有一个列名parent_id
,通过它我可以将关系链接到表格。
{{ $post->replies }}
返回空数组。按逻辑,它应该返回与回复相关的评论回复。
如果还需要其他任何东西,请提及我将分享。
更新:请注意,用户评论的所有回复都存储在具有唯一ID的数据库表帖子中,即parent_id
唯一的事情就是当我尝试访问它时返回空数组。
答案 0 :(得分:1)
您正在使用$post
作为父帖和回复,因此在
$post->replies()->save($post);
您实际上是将$post
设置为对自己的回复。
还值得注意的是,id
列是UNSIGNED,但user_id
和parent_id
不是。我认为这些设置了外键吗?
修改
使用新的$reply
变量尝试此操作。
public function postReply(Request $request, $statusId){
$this->validate($request, [
"reply-{$statusId}" => 'required|max:1000',
],
[
'required' => 'The reply body is required'
]
);
$post = Post::notReply()->find($statusId);
if(!$post){
return redirect('/');
}
if(!Auth::user()->isFriendsWith($post->user) && Auth::user()->id !== $post->user->id){
return redirect('/');
}
$reply = Post::create([
'body' => $request->input("reply-{$statusId}"),
]);
$reply->user()->associate(Auth::user());
$post->replies()->save($reply);
return redirect()->back();
}
答案 1 :(得分:1)
在将$post
变量传递给您的视图时,您似乎没有附上回复。
我们必须使用with()
方法来加入这两个表格。
尝试,以下:
if(Auth::check()){
$posts = Post::notReply()
->where(function($query){
return $query->where('user_id', Auth::user()->id)
->orWhereIn('user_id', Auth::user()->friends()->lists('id'));
})
->with('replies')//Here we are joining the replies to the post
->orderBy('created_at', 'desc')
->get();
return view('timeline.index', compact('posts'));
}
现在,在您的视图中,您需要使用2 foreach
循环,如下所示:
@foreach($posts as $post)
{{--Your Code --}}
@foreach($post->replies as $reply)
{{--Your Code --}}
@endforeach
{{--Your Code --}}
@endforeach
问题在于postReply()
方法。在旧代码中,您覆盖了$post
变量,因此回复将parent_id
作为自己的id
。
因此,请使用$reply
变量替换旧代码
的旧强>
$post= Post::create([
'body' => $request->input("reply-{$statusId}"),
]);
$post->user()->associate(Auth::user());
$post->replies()->save($post);
新强>
$reply = Post::create([
'body' => $request->input("reply-{$statusId}"),
]);
$post->user()->associate(Auth::user());
$post->replies()->save($reply);
答案 2 :(得分:0)
你的关系设置错了。在您的帖子模型中,而不是发布自己的一对多关系。它应该是这样的:
// App\User.php
public function replies()
{
return $this->hasMany(App\Reply::class);
}
// App\Post.php
public function replies()
{
return $this->hasMany(App\Reply::class);
}
// App\Reply.php
public function post()
{
return $this->belongsTo(App\Post::class);
}
public function user()
{
return $this->belongsTo(App\User::class);
}
public function comments()
{
return $this->belongsTo(App\Reply::class, 'parent_id');
}