在Laravel中使用左连接

Question

我开始使用Laravel，但我无法显示来自对象的信息：

$questions = DB::table('Questions')
                ->join('Users', 'Users.id', '=', 'Questions.user_id')
                ->join('Profiles', 'Profiles.user_id', '=', 'Users.id')
                ->leftjoin('Answers', 'Answers.question_id', '=', 'Questions.id')
                ->orderBy('Questions.created_at','desc')
                ->get();

查询工作正常，但是当我尝试在刀片模板中显示这样的内容时：

@foreach ($question->answers as $answer )
      ...
endforeach

我收到了消息

  

未定义属性：stdClass :: $ answers（查看：C：... \ app \ views \ home.blade.php）

这是问答配置

class Question extends Eloquent {

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

public function answers()
{
    return $this->hasMany('Answer');
}
}

class Answer extends Eloquent {

public function question()
{
    return $this->belongsTo('Question');
}
}

users:
      -id
      -email
      -photo
      -name
questions:
      -id
      -content
      -user_id
answers:
      -id
      -content
      -user_id
      -question_id