尝试通过关联获得属性的非对象问题

Question

我正在尝试 post 通过创建和存储表单在我的一个论坛中创建一个新线程，但在尝试将线程与我 [=22= 的论坛相关联时一直遇到错误] 里面的线程。有人知道问题出在哪里吗？

问题：

Trying to get property of non-object
at HandleExceptions->handleError(8, 'Trying to get property of non-object', 'ThreadController.php', 51, array('request' => object(Request), 'forum_id' => 'soccer', 'forum' => null, 'thread' => object(Thread)))

控制器：

public function create($slug)
{
    //
    $forum = Forum::where('slug', '=', $slug)->first();

    return view('threads.create')->withForum($forum);
}

/**
 * Store a newly created resource in storage.
 *
 * @param  \Illuminate\Http\Request  $request
 * @return \Illuminate\Http\Response
 */
public function store(Request $request, $forum_id)
{
    //
    $this->validate($request, array(
        'threadname' => 'required|max:90',
        'post' => 'required|max:99000'
    ));
    $forum = Forum::find($forum_id);
    $thread = new Thread();
    $thread->threadname = $request->threadname;
    $thread->forums()->associate($forum);
    $thread->user_id = $request->user()->id;
    $thread->save();


    return view('forum.index');

}

查看：

{!! Form::open(['route' => ['thread.store', $forum->slug], 'method' => 'POST', 'files' => 'true']) !!}
   {!! Form::label('threadname', 'Title of Thread:') !!}
   {!! Form::text('threadname', null, array('class' => 'form-control')) !!}
  {!! Form::label('post', 'Message:') !!}
  {!! Form::textarea('post', null, array('class' => 'form-control')) !!}
  {!! Form::submit('Create', array('class' => 'btn-send btn-lg btn-block')) !!}
  {!! Form::close() !!}

Answer 1

您正在尝试使用字符串 soccer 查找论坛，这应该是论坛的 ID。

'forum_id' => 'soccer'

$forum = Forum::find($forum_id);

如果您按别名或标题搜索，则不能使用 find()

尝试通过关联获得属性的非对象问题

Trying to get property of non-object issue with associating

laravel

laravel-5

laravel-5.4

尝试通过关联获得 属性 的非对象问题

Trying to get property of non-object issue with associating

laravel

laravel-5

laravel-5.4

尝试通过关联获得属性的非对象问题