尝试获取非对象的属性 - 私人消息 laravel

Question

欢迎！我有一个问题，我尝试使用此 https://github.com/cmgmyr/laravel-messenger Laravel软件包在Laravel 5.2上进行私人消息传递。当我没有任何收件人时，我可以发布消息，但是当我将新用户添加到数据库并且收件人现在以表单显示时，我有一个错误：试图获取非对象的属性。所有控制器和视图均从上述链接的示例复制。

问候

Answer 1

消息控制器：

    <?php
 namespace AppHttpControllers;
use AppUser;
use CarbonCarbon;
use CmgmyrMessengerModelsMessage;
use CmgmyrMessengerModelsParticipant;
use CmgmyrMessengerModelsThread;
use IlluminateDatabaseEloquentModelNotFoundException;
use IlluminateSupportFacadesAuth;
use IlluminateSupportFacadesInput;
use IlluminateSupportFacadesSession;
class MessagesController extends Controller
{
/**
 * Show all of the message threads to the user.
 *
 * @return mixed
 */
public function index()
{
    $currentUserId = Auth::user()->id;
    // All threads, ignore deleted/archived participants
    $threads = Thread::getAllLatest()->get();
    // All threads that user is participating in
    // $threads = Thread::forUser($currentUserId)->latest('updated_at')->get();
    // All threads that user is participating in, with new messages
    // $threads = Thread::forUserWithNewMessages($currentUserId)->latest('updated_at')->get();
    return view('messenger.index', compact('threads', 'currentUserId'));
}
/**
 * Shows a message thread.
 *
 * @param $id
 * @return mixed
 */
public function show($id)
{
    try {
        $thread = Thread::findOrFail($id);
    } catch (ModelNotFoundException $e) {
        Session::flash('error_message', 'The thread with ID: ' . $id . ' was not found.');
        return redirect('messages');
    }
    // show current user in list if not a current participant
    // $users = User::whereNotIn('id', $thread->participantsUserIds())->get();
    // don't show the current user in list
    $userId = Auth::user()->id;
    $users = User::whereNotIn('id', $thread->participantsUserIds($userId))->get();
    $thread->markAsRead($userId);
    return view('messenger.show', compact('thread', 'users'));
}
/**
 * Creates a new message thread.
 *
 * @return mixed
 */
public function create()
{
    $users = User::where('id', '!=', Auth::id())->get();
    return view('messenger.create', compact('users'));
}
/**
 * Stores a new message thread.
 *
 * @return mixed
 */
public function store()
{
    $input = Input::all();
    $thread = Thread::create(
        [
            'subject' => $input['subject'],
        ]
    );
    // Message
    Message::create(
        [
            'thread_id' => $thread->id,
            'user_id'   => Auth::user()->id,
            'body'      => $input['message'],
        ]
    );
    // Sender
    Participant::create(
        [
            'thread_id' => $thread->id,
            'user_id'   => Auth::user()->id,
            'last_read' => new Carbon,
        ]
    );
    // Recipients
    if (Input::has('recipients')) {
        $thread->addParticipant($input['recipients']);
    }
    return redirect('messages');
}
/**
 * Adds a new message to a current thread.
 *
 * @param $id
 * @return mixed
 */
public function update($id)
{
    try {
        $thread = Thread::findOrFail($id);
    } catch (ModelNotFoundException $e) {
        Session::flash('error_message', 'The thread with ID: ' . $id . ' was not found.');
        return redirect('messages');
    }
    $thread->activateAllParticipants();
    // Message
    Message::create(
        [
            'thread_id' => $thread->id,
            'user_id'   => Auth::id(),
            'body'      => Input::get('message'),
        ]
    );
    // Add replier as a participant
    $participant = Participant::firstOrCreate(
        [
            'thread_id' => $thread->id,
            'user_id'   => Auth::user()->id,
        ]
    );
    $participant->last_read = new Carbon;
    $participant->save();
    // Recipients
    if (Input::has('recipients')) {
        $thread->addParticipant(Input::get('recipients'));
    }
    return redirect('messages/' . $id);
}

}

标准路线：

 Route::group(['prefix' => 'messages'], function () {
 Route::get('/', ['as' => 'messages', 'uses' => 'MessagesController@index']);
Route::get('/create', ['as' => 'messenger.create', 'uses' =>    'MessagesController@create']);
Route::post('/', ['as' => 'messages.store', 'uses' => 'MessagesController@store']);
Route::get('{id}', ['as' => 'messages.show', 'uses' => 'MessagesController@show']);
Route::put('{id}', ['as' => 'messages.update', 'uses' => 'MessagesController@update']);
});

和标准视图：

   {!! Form::open(['route' => 'messages.store']) !!}
   <div class="col-md-6">
  <!-- Subject Form Input -->
  <div class="form-group">
      {!! Form::label('subject', 'Subject', ['class' => 'control-label']) !!}
      {!! Form::text('subject', null, ['class' => 'form-control']) !!}
  </div>
  <!-- Message Form Input -->
  <div class="form-group">
      {!! Form::label('message', 'Message', ['class' => 'control-label']) !!}
      {!! Form::textarea('message', null, ['class' => 'form-control']) !!}
  </div>
  @if($users->count() > 0)
  <div class="checkbox">
      @foreach($users as $user)
          <label title="{{ $user->name }}"><input type="checkbox" name="recipients[]" value="{{ $user->id }}">{!!$user->name!!}</label>
      @endforeach
  </div>
  @endif
  <!-- Submit Form Input -->
  <div class="form-group">
      {!! Form::submit('Submit', ['class' => 'btn btn-primary form-control']) !!}
  </div>
    </div>
    {!! Form::close() !!}
     </div>