Question

我遇到有关ORM \ PrePersist的问题，其次是我的Employee实体和EmployeeController：

<?php
namespace Nlc\InformationBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Validator\Constraints as Assert;
use Symfony\Component\HttpFoundation\File\UploadedFile;


/**
* Employee
* @ORM\Entity()
* @ORM\HasLifecycleCallbacks()
*/
class Employee
{
  ...

     /**
     * @ORM\PrePersist
     * @ORM\PreUpdate
     */
    public function preUpload()
    {
     dump(1);die;
    }

  ...
 }



 <?php

  namespace Nlc\InformationBundle\Controller;

  use Nlc\InformationBundle\Entity\Employee;
  use Symfony\Bundle\FrameworkBundle\Controller\Controller;
  use Sensio\Bundle\FrameworkExtraBundle\Configuration\Method;
  use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
  use Symfony\Component\HttpFoundation\Request;

  /**
   * Employee controller.
   *
   * @Route("nlc_employee")
  */
  class EmployeeController extends Controller
  {
    /**
    * Creates a new employee entity.
    *
    * @Route("/new", name="nlc_employee_new")
    * @Method({"GET", "POST"})
    */
    public function newAction(Request $request)
    {
      $employee = new Employee();

      $form = $this->createForm('Nlc\InformationBundle\Form\EmployeeType', $employee);
    $form->handleRequest($request);

    if ($form->isSubmitted() && $form->isValid()) {
        $em = $this->getDoctrine()->getManager();
        $em->persist($employee);
        $em->flush();

        return $this->redirectToRoute('nlc_employee_show', array('id' => $employee->getId()));
    }

    return $this->render('employee/new.html.twig', array(
        'employee' => $employee,
        'form' => $form->createView(),
    ));
}

并收到以下消息：

执行'INSERT INTO employee（姓名，年龄，性别，学历，照片，jl，created_at，updated_at，category_id）值（？，？，？，？，？，？，？，？，？，？）时发生异常。）'和params [“ \ u9093 \ u5b66 \ u6587”，4，“ \ u7537”，“ \ u672c \ u79d1”，null，null，“ 2013-01-01 00:00:00”，“ 2013-01- 01 00:00:00“，1]：

SQLSTATE [23000]：违反完整性约束：1048列'photo'不能为空

Answer 1

您好，您必须在setter中传递PrePersist，以使列确实要应用

例如这样

/**
 * @ORM\PrePersist
 */
public function setPhotoAtValue()
{
    $this->createdAt = new \DateTime();
}

symfony 2.8 @ORM \ PrePersist无法正常工作

1 个答案: