DoctrineModule \表格\元素\ ObjectSelect沒有對象管理器設置

Question

我想添加「DoctrineModule \表格\元素\ ObjectSelect」我的形式，但它不斷給我這個錯誤：沒有對象管理器設置

這是我的形式代碼：

use Zend\Form\Form; 
use Zend\InputFilter\InputFilter; 
use Retrieve\Entity\Autos; 
use Doctrine\Common\Persistence\ObjectManager; 
use DoctrineModule\Persistence\ObjectManagerAwareInterface; 

class AddForm extends Form 
{ 
    /** 
* Entity manager. 
* @var Doctrine\ORM\EntityManager 
*/ 
private $entityManager; 

protected $objectManager; 

public function __construct() 
{ 
    parent::__construct('addforms'); 

    $this->setAttribute('method', 'post'); 

    $this->addElements(); 
    $this->addInputFilter(); 

} 

protected function addElements() 
{   
    // Add "title" field 
    $this->add([   
     'type' => 'text', 
     'name' => 'title', 
     'attributes' => [ 
      'id' => 'title' 
     ], 
     'options' => [ 
      'label' => 'Title', 
     ], 
    ]); 

$this->add([ 
     'type' => 'DoctrineModule\Form\Element\ObjectSelect', 
     'name' => 'country', 
     'options' => [ 
      'label' => 'Country', 
      'object_manager' => $this->getObjectManager(), 
      'target_class' => 'BusinessGhana\Entity\Country', 
      'property'  => 'country', 
      'display_empty_item' => true, 
      'empty_item_label' => '--select Country--',     
     ], 
    ]); 
    //other elements here... 
} 

public function setObjectManager(ObjectManager $objectManager) 
{ 
    $this->objectManager = $objectManager; 
} 

public function getObjectManager() 
{ 
    return $this->objectManager; 
} 

private function addInputFilter() 
{ 
    // inputfilter elements here... 
} 
} 

有人能指導我如何解決這個問題。 在此先感謝。

Answer 1

您的班級表格應實施ObjectManagerAwareInterface。

class AddForm extends Form implements ObjectManagerAwareInterface 
{ 

} 

由於類的ObjectManagerAwareInterface該實例將從setObjectManager()方法注入ObjectManager。