Question

我有2个表与ManyToOne关系。

class Parent
{
  /**
     * @var integer $id
     *
     * @ORM\Column(name="id", type="integer", nullable=false)
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="IDENTITY")
     */
    private $id;

    /**
     *
     * @ORM\OneToMany(cascade={"persist"},targetEntity="Child", mappedBy="parent")
     */

    private $child;

  // getters and setters
}

class child{

     /**
     * @var integer $id
     *
     * @ORM\Column(name="id", type="integer", nullable=false)
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="IDENTITY")
     */
    private $id;

    /**
     * @var Parent
     *
     * @ORM\ManyToOne(cascade={"persist"},targetEntity="Parent")
     * @ORM\JoinColumns({
     * @ORM\JoinColumn(name="parent_id", referencedColumnName="id")
     * })
     *
     */
    private $parent;

   // getters and setters

}

现在如何处理父表的一行被删除时生成的异常？
如何在Sonata Admin Generator表单中显示消息？

提前致谢

Answer 1

1：现在如何处理父表的一行被删除时生成的异常？

Sol：以下步骤可以解决问题

OverRide由sonata admin bundle提供的CRUDController。确保重写的CRUDController与原始CRUDController位于同一位置。 ie.YourProject / AdminBundle /控制器/ CRUDController.php

将deleteAction和batchActionDelete从原始控制器复制到Overridden控制器。即

public function deleteAction（$ id） {

    $id     = $this->get('request')->get($this->admin->getIdParameter());

    $object = $this->admin->getObject($id);

   if (!$object) {
        throw new NotFoundHttpException(sprintf('unable to find the object with id : %s', $id));
    }

    if (false === $this->admin->isGranted('DELETE', $object)) {
        throw new AccessDeniedException();
    }

    if ($this->getRequest()->getMethod() == 'DELETE') {

     try {

            $this->admin->delete($object);

            $this->get('session')->setFlash('sonata_flash_success', 'flash_delete_success');

        } catch (\Exception $e) {

            $this->get('session')->setFlash('sonata_flash_error', sprintf('Cannot Delete because it has Dependeny'));
        }
         return new RedirectResponse($this->admin->generateUrl('list'));
       }

    return $this->render($this->admin->getTemplate('delete'), array(
        'object' => $object,
        'action' => 'delete'
    ));
}

try catch块应该处理其余部分。

2.如何在Sonata Admin Generator表单中显示消息？

sol：缓存块中的消息将以奏鸣曲管理包形式显示

即

try {

                    $this->admin->delete($object);

                    $this->get('session')->setFlash('sonata_flash_success', 'flash_delete_success');

                } catch (\Exception $e) {

                    $this->get('session')->setFlash('sonata_flash_error', sprintf('Cannot Delete because it has Dependeny'));
                }

注意。确保导入所有必要的文件

在Sonata Admin Bundle中处理多个例外情况

1 个答案: