php – Laravel 5.1未定义的变量：评论

我可以保存并显示项目,并在特定的项目页面上(/ projects / {id})我有一个表单,用户可以在其中留下评论.我可以将注释保存在数据库中,但是当我尝试显示注释时,我得到此错误未定义变量：comments(查看：/var/www/resources/views/projects/show.blade.php).

我的文件：
评论模型：

class Comment extends Model
{
//comments table in database
protected $guarded = [];

public function user()
{
    return $this->belongsTo('AppUser');
}

// returns post of any comment
public function post()
{
    return $this->belongsTo('AppProject','project_id');
}


public $timestamps = false;
}

项目模型：

class Project extends Model
{
protected $fillable = [
'user_id','title','tags','summary','file_name','published_at'
];
public function User()
{
    return $this->belongsTo('AppUser');
}
}

我的用户模型

class User extends Model implements AuthenticatableContract,AuthorizableContract,CanResetPasswordContract
{
use Authenticatable,Authorizable,CanResetPassword;

/**
 * The database table used by the model.
 *
 * @var string
 */
protected $table = 'users';

/**
 * The attributes that are mass assignable.
 *
 * @var array
 */
protected $fillable = ['name','email','password'];

/**
 * The attributes excluded from the model's JSON form.
 *
 * @var array
 */
protected $hidden = ['password','remember_token'];

public function Projects()
{
    return $this->hasMany('AppProject');
}

public function comments()
{
    return $this->hasMany('AppComment');
}

}

我的评论控制器

public function index()
{
    $comments = Comment::all();

    return view('projects.show',compact('comments'));
}

public function store()
{
    $input = Request::all();
    $comment = new Comment;
    $comment->body = $input['body'];
    $comment->on_projects = $input['project_id'];
    $comment->from_user = Auth::user()->id;
    $comment->save();
    return redirect('projects/'.$input['project_id']);

}

我的看法

@section('content')
<a href="/projects">Terug naar alle projecten</a>
<h1>Werkje: {{ $project->title }}</h1>
<h3>Gemaakt door: <a href='/student/{{ $project->User->id }}'>{{ $project->User->name }}</a></h3>
<img src="{{URL::to('/')}}/uploads/projects/{{ $project->file_name }}">
<h5>Tags: {{$project->tags}}</h5>
<hr />
<h1>Reageer</h1>

@if (Auth::check())

    <article> <!--Add comment -->

        <br/>
        {!! Form::open() !!}
        {!! form::text('body',null,['class' => 'form-control']) !!}

        <br/>

        {!! Form::Submit('Reageer',['class' => 'btn btn-primary form-control']) !!}
        {!! Form::hidden('project_id',$project->id) !!}


        {!! Form::close() !!}
        <br/>

    </article>


    <article>

        @foreach ($comments as $comment)

            <article>

                <p>Body: {{ $comment->body }}</p>
                <p>{{ $comment->user->name }}</p>

            </article>


        @endforeach

    </article>
@else
    <p>Gelieve in te loggen om te kunnen reageren.</p>
@endif

我的路线：

// Student routes REST methode
Route::resource('student','StudentController');
Route::get('student/profile','StudentController@getProfile');

// add comment
Route::post('projects/{id}','CommentController@store');
// show comments
Route::get('projects/{id}','CommentController@index');

//Project routes REST methode
Route::post('projects/store','ProjectsController@store');
Route::resource('projects','ProjectsController');

// Authentication routes
Route::get('auth/login','AuthAuthController@getLogin');
Route::post('auth/login','AuthAuthController@postLogin');
Route::get('auth/logout','AuthAuthController@getLogout');

// Registration routes
Route::get('auth/register','AuthAuthController@getRegister');
Route::post('auth/register','AuthAuthController@postRegister');

// Password reset link request routes
Route::get('password/email','AuthPasswordController@getEmail');
Route::post('password/email','AuthPasswordController@postEmail');

// Password reset routes
Route::get('password/reset/{token}','AuthPasswordController@getReset');

我现在收到此错误：
未定义的变量：project(查看：/var/www/resources/views/projects/show.blade.php)