Eager在Laravel 5中加载具有多个关系的Eloquent模型时出错

问题描述：

My User model have two relationships

public function group(){
                return $this->belongsTo('App\Group','group_id');
            }
public function profile()
            {
                return $this->hasOne('App\Profile','user_id');
            }

And Accessing them in Controller like

 $users = \App\User::with('group','profile')->get();

However, Retriving Profile Model's column give error (Inside a @foreach loop )

@foreach ($users as $user)
    URL::action('ProfileController@edit',[$user->profile->id])
@foreach ($users as $user)

Error

Trying to get property of non-object 
(View: C:\xampp\htdocs\laravel1esources\views\user\index.blade.php)

Debug: while dd($user) gives out related data, why the error ?

P.S. dd($user) output link = http://bit.ly/1IxEpVk

我的用户 code>模型有两种关系 p>

   public function group（）{
 return $ this-＆gt; belongsTo（'App \ Group'，'group_id'）; 
} 
公共函数profile（）
 {
返回$ this-＆gt;  hasOne（'App \ Profile'，'user_id'）; 
} 
  code>  pre> 
 
 在Controller中访问它们 p> 
 
 
   $ users = \ App \ User :: with（'group'，'profile'） - ＆gt; get（）; 
  code>  pre> 
 
 但是，Retriving  Profile Model的列给出错误 code> 
（在@foreach循环内） p> 
 
 
  @foreach（$ users as $ user）
 URL :: action（  'ProfileController @ edit'，[$ user-＆gt; profile-＆gt; id]）
 @ foreach（$ users as $ user）
  code>  pre> 
 
 错误  p> 
 
 
 尝试获取非对象的属性
（查看：C：\ xampp \ htdocs \ laravel1 
esources \ views \ user \ index.blade.php）
  代码>  pre> 
 
 调试：
而 dd（$ user） code>给出相关数据，为什么会出错？ p> 
 \  Ñ
 P.S。   dd（$ user） code>输出link =  http://bit.ly/1IxEpVk   
  div>

答

You are trying to get id from an null profile. Please check one of your results and see that inside relations property you have profile as null

Please check first if profile is null and only after that get your field

Good luck.

Eager在Laravel 5中加载具有多个关系的Eloquent模型时出错

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