Laravel試圖讓非對象錯誤的性質

Question

我有兩個表看起來像這樣

empPf

id 
emp_id 
emp_name 
uan 
kyc 

empyc

id 
emp_id 
doc_type 
doc_number 

現在我有兩個型號

empPf

<?php 

namespace App; 

use Illuminate\Database\Eloquent\Model; 

class empPf extends Model 
{ 
    protected $table = 'empPf'; 
    protected $primaryKey = 'emp_id'; 

    public function kyc(){ 

      return $this->hasMany('App\empKyc','emp_id'); 

     } 
} 

empKyc

<?php 

namespace App; 

use Illuminate\Database\Eloquent\Model; 

class empKyc extends Model 
{ 
    protected $table = 'empKyc'; 
    //protected $primaryKey = 'emp_id'; 

    public function pf(){ 

      return $this->belongsTo('App\empPf','emp_id'); 

     } 
} 

我試圖做下面的代碼在我的控制器

public function getPf(){ 
     Session::put('activemenu', 'emp_ss'); 

     $pfs = empPf::with(array('kyc'))->get(); 

     foreach ($pfs as $value) { 
       dd($value->kyc[0]->emp_id); 
     } 

    } 

我得到錯誤

Trying to get property of non-object

任何幫助，將不勝感激

堆棧跟蹤

Stack trace: 
#0 {main} 
[2016-06-07 06:52:36] local.ERROR: exception 'ErrorException' with message 'Trying to get property of non-object' in D:\iclock-production\app\Http\Controllers\HrController.php:314 
Stack trace: 
#0 D:\iclock-production\app\Http\Controllers\HrController.php(314): Illuminate\Foundation\Bootstrap\HandleExceptions->handleError(8, 'Trying to get p...', 'D:\\iclock-produ...', 314, Array) 
#1 [internal function]: App\Http\Controllers\HrController->getPf() 
#2 D:\iclock-production\vendor\laravel\framework\src\Illuminate\Routing\Controller.php(256): call_user_func_array(Array, Array) 
#3 D:\iclock-production\vendor\laravel\framework\src\Illuminate\Routing\ControllerDispatcher.php(164): Illuminate\Routing\Controller->callAction('getPf', Array) 
#4 D:\iclock-production\vendor\laravel\framework\src\Illuminate\Routing\ControllerDispatcher.php(112): Illuminate\Routing\ControllerDispatcher->call(Object(App\Http\Controllers\HrController), Object(Illuminate\Routing\Route), 'getPf') 
#5 [internal function]: Illuminate\Routing\ControllerDispatcher->Illuminate\Routing\{closure}(Object(Illuminate\Http\Request)) 
#6 D:\iclock-production\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(139): call_user_func(Object(Closure), Object(Illuminate\Http\Request)) 
#7 D:\iclock-production\app\Http\Middleware\Role.php(38): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request)) 
#8 [internal function]: App\Http\Middleware\Role->handle(Object(Illuminate\Http\Request), Object(Closure), 'hr') 
#9 D:\iclock-production\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(124): call_user_func_array(Array, Array) 
#10 D:\iclock-production\app\Http\Middleware\Authenticate.php(49): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request)) 
#11 [internal function]: App\Http\Middleware\Authenticate->handle(Object(Illuminate\Http\Request), Object(Closure)) 
#12 D:\iclock-production\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(124): call_user_func_array(Array, Array) 
#13 [internal function]: Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request)) 
#14 D:\iclock-production\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(103): call_user_func(Object(Closure), Object(Illuminate\Http\Request)) 
#15 D:\iclock-production\vendor\laravel\framework\src\Illuminate\Routing\ControllerDispatcher.php(114): Illuminate\Pipeline\Pipeline->then(Object(Closure)) 
#16 D:\iclock-production\vendor\laravel\framework\src\Illuminate\Routing\ControllerDispatcher.php(69): Illuminate\Routing\ControllerDispatcher->callWithinStack(Object(App\Http\Controllers\HrController), Object(Illuminate\Routing\Route), Object(Illuminate\Http\Request), 'getPf') 
#17 D:\iclock-production\vendor\laravel\framework\src\Illuminate\Routing\Route.php(203): Illuminate\Routing\ControllerDispatcher->dispatch(Object(Illuminate\Routing\Route), Object(Illuminate\Http\Request), 'App\\Http\\Contro...', 'getPf') 
#18 D:\iclock-production\vendor\laravel\framework\src\Illuminate\Routing\Route.php(134): Illuminate\Routing\Route->runWithCustomDispatcher(Object(Illuminate\Http\Request)) 
#19 D:\iclock-production\vendor\laravel\framework\src\Illuminate\Routing\Router.php(708): Illuminate\Routing\Route->run(Object(Illuminate\Http\Request)) 
#20 [internal function]: Illuminate\Routing\Router->Illuminate\Routing\{closure}(Object(Illuminate\Http\Request)) 
#21 D:\iclock-production\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(139): call_user_func(Object(Closure), Object(Illuminate\Http\Request)) 
#22 [internal function]: Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request)) 
#23 D:\iclock-production\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(103): call_user_func(Object(Closure), Object(Illuminate\Http\Request)) 
#24 D:\iclock-production\vendor\laravel\framework\src\Illuminate\Routing\Router.php(710): Illuminate\Pipeline\Pipeline->then(Object(Closure)) 
#25 D:\iclock-production\vendor\laravel\framework\src\Illuminate\Routing\Router.php(675): Illuminate\Routing\Router->runRouteWithinStack(Object(Illuminate\Routing\Route), Object(Illuminate\Http\Request)) 
#26 D:\iclock-production\vendor\laravel\framework\src\Illuminate\Routing\Router.php(635): Illuminate\Routing\Router->dispatchToRoute(Object(Illuminate\Http\Request)) 
#27 D:\iclock-production\vendor\laravel\framework\src\Illuminate\Foundation\Http\Kernel.php(236): Illuminate\Routing\Router->dispatch(Object(Illuminate\Http\Request)) 
#28 [internal function]: Illuminate\Foundation\Http\Kernel->Illuminate\Foundation\Http\{closure}(Object(Illuminate\Http\Request)) 
#29 D:\iclock-production\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(139): call_user_func(Object(Closure), Object(Illuminate\Http\Request)) 
#30 D:\iclock-production\vendor\lucadegasperi\oauth2-server-laravel\src\Middleware\OAuthExceptionHandlerMiddleware.php(36): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request)) 
#31 [internal function]: LucaDegasperi\OAuth2Server\Middleware\OAuthExceptionHandlerMiddleware->handle(Object(Illuminate\Http\Request), Object(Closure)) 
#32 D:\iclock-production\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(124): call_user_func_array(Array, Array) 
#33 D:\iclock-production\vendor\laravel\framework\src\Illuminate\View\Middleware\ShareErrorsFromSession.php(49): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request)) 
#34 [internal function]: Illuminate\View\Middleware\ShareErrorsFromSession->handle(Object(Illuminate\Http\Request), Object(Closure)) 
#35 D:\iclock-production\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(124): call_user_func_array(Array, Array) 
#36 D:\iclock-production\vendor\laravel\framework\src\Illuminate\Session\Middleware\StartSession.php(62): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request)) 
#37 [internal function]: Illuminate\Session\Middleware\StartSession->handle(Object(Illuminate\Http\Request), Object(Closure)) 
#38 D:\iclock-production\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(124): call_user_func_array(Array, Array) 
#39 D:\iclock-production\vendor\laravel\framework\src\Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse.php(37): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request)) 
#40 [internal function]: Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse->handle(Object(Illuminate\Http\Request), Object(Closure)) 
#41 D:\iclock-production\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(124): call_user_func_array(Array, Array) 
#42 D:\iclock-production\vendor\laravel\framework\src\Illuminate\Cookie\Middleware\EncryptCookies.php(59): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request)) 
#43 [internal function]: Illuminate\Cookie\Middleware\EncryptCookies->handle(Object(Illuminate\Http\Request), Object(Closure)) 
#44 D:\iclock-production\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(124): call_user_func_array(Array, Array) 
#45 D:\iclock-production\vendor\laravel\framework\src\Illuminate\Foundation\Http\Middleware\CheckForMaintenanceMode.php(44): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request)) 
#46 [internal function]: Illuminate\Foundation\Http\Middleware\CheckForMaintenanceMode->handle(Object(Illuminate\Http\Request), Object(Closure)) 
#47 D:\iclock-production\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(124): call_user_func_array(Array, Array) 
#48 [internal function]: Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request)) 
#49 D:\iclock-production\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(103): call_user_func(Object(Closure), Object(Illuminate\Http\Request)) 
#50 D:\iclock-production\vendor\laravel\framework\src\Illuminate\Foundation\Http\Kernel.php(122): Illuminate\Pipeline\Pipeline->then(Object(Closure)) 
#51 D:\iclock-production\vendor\laravel\framework\src\Illuminate\Foundation\Http\Kernel.php(87): Illuminate\Foundation\Http\Kernel->sendRequestThroughRouter(Object(Illuminate\Http\Request)) 
#52 D:\iclock-production\public\index.php(54): Illuminate\Foundation\Http\Kernel->handle(Object(Illuminate\Http\Request)) 
#53 D:\iclock-production\server.php(21): require_once('D:\\iclock-produ...') 
#54 {main} 

感謝

Answer 1

你必須檢查，如果你的PFS模型有任何相關KYC第一：

foreach ($pfs as $value) { 
    if ($value->kyc->count()) { 
     dd($value->kyc[0]->emp_id); 
    } 
}