小编cug*_*rel的帖子

我正在系统中获取我的帖子的输出，但是我收到了这个 errror Call to a member function diffForHumans() on null...你能帮帮我吗？谢谢...

文章模型是：

protected $fillable=[
        'user_id','content','live','post_on'
    ];

public function setLiveAttribute($value)
{
    $this->attributes['live']=(boolean)($value);
}

而文章控制器是

public function index()
{
    $articles = Article::all();
    return view('articles.index', compact('articles'));
}

public function create()
{   
    return view('articles.create');
}

public function store(Request $request)
{


    Article::create($request->all());

}

public function show()
{   

}

public function update()
{   

}

public function destroy()
{   

}