（內部服務器錯誤）laravel和ajax

Question

我是laravel的新手，當我使用ajax時出現內部服務器錯誤。 我發現，當我要保存在數據庫中的數據（評論對象）當我寫這條線我有這個錯誤正是：

$request->Post()->comments()->save($comment); 

在file.I附上所有必要的代碼控制器here.is有任何身體請幫助我？

route.php

Route::post('/savecomment',[ 
    'uses'=>'CommentController@postCreateComment', 
    'as'=>'comment.save' 
    ]); 

commentController.php

public function postCreateComment(Request $request) 
    { 
     $this->validate($request,[ 
      'commentBody'=>'required|max:1000' 
      ]); 
     $comment=new Comment(); 
     $comment->body=$request['commentbody']; 
     $comment->post_id=$request['postId']; 
     $message ='there was an error'; 
     $request->Post()->comments()->save($comment); 
     $message='comment successfuly created'; 
     //return redirect()->route('dashboard')->with(['message'=>$message]); 

    } 

的jquery

$('[id^=comment-save]').on('click', function (event) { 
event.preventDefault(); 
    postId = $(this).parents('.post').attr('data-postId'); 
    $.ajax({ 
    method :'POST', 
    url: urlComment, 
    data:{postId:postId,_token:token,commentBody:$('#comment-body'+postId).val()} 
     }) 
    .done(function(){ 
    //change the page 
    }); 

HTML部分

<section class="row posts"> 
    <div class="cod-md-6 col-md-offset-3"> 
     <header><h3>what is other`s idea</h3></header> 
     @foreach($posts as $post) 
     <article class="post" data-postId='{{ $post->id}}'> 
      <p> 
       {{$post->body}} 
      </p> 
      <div class="info"> 
       posted by {{$post->user->first_name}} in {{$post->created_at}} 
      </div> 
      <div class="interaction"> 
       <a class="like" href="#">Like</a>| 
       <a class="dislike" href="#">Dislike</a>|     
       <a data-toggle="collapse" href="#collapseComment{{ $post->id }}" aria-expanded="false" aria-controls=""> 
        comment 
       </a> 
       @if(Auth::user() == $post->user) 
       |<a data-toggle="modal" href="#edit-model" class="edit" >Edit</a>| 
       <a href="{{ route('post.delete',['post_id'=>$post->id])}}">Delete</a> 
       @endif    
      </div> 
      <div class="collapse" id="collapseComment{{ $post->id }}"> 
       <div class="card card-block"> 
        <input type="test" name="comment-body{{ $post->id }}" id="comment-body{{ $post->id }}" > 
        <button type="button" id="comment-save{{ $post->id }}" class="btn btn-primary">comment</button> 
       </div> 
      </div> 
     </article> 
     @endforeach  
    </div> 
</section> 
<script> 
    var token = '{{ Session::token() }}'; 
    var urlComment = '{{ route('comment.save') }}';  
</script> 

評論類

namespace App;  
use Illuminate\Database\Eloquent\Model;  
class Comment extends Model 
{   
    public function post() 
    { 
     return $this->belongsTo('App\Post'); 
    }  
} 

後級

namespace App;   
    use Illuminate\Database\Eloquent\Model;   
    class Post extends Model 
    {    
     public function user() 
     { 
      return $this->belongsTo('App\user'); 
     }   
     public function comments() 
     {   
      return $this->hasMany('App\Comment'); 
     }   
    } 

Answer 1

我想$ comment->保存（）;會好的。