Symfony VichUploaderBundle未保存文件-命名字段为空

我有一个应用程序，允许用户在申请课程时上传简历。返回并显示输入表单时不会出现错误。提交表单时，不会抛出任何错误。上传的文件位于POST数据中-作为UploadedFile和cvUpdatedAt字段的实例进行设置。但是，当记录保存到数据库时，用于存储文件名的列被设置为NULL

这是我的实体：

<?php

namespace My\CamsBundle\Entity;

use DateTime;
use Doctrine\ORM\Mapping as ORM;
use Doctrine\Common\Collections\ArrayCollection;
use Symfony\Component\HttpFoundation\File\File;
use Symfony\Component\Validator\Constraints as Assert;
use Vich\UploaderBundle\Mapping\Annotation as Vich;

/**
 * @ORM\Entity(repositoryClass="My\CamsBundle\Entity\Repository\ApplicationRepository")
 * @ORM\Table(name="application")
 * @Vich\Uploadable
 * @ORM\HasLifecycleCallbacks()
 */
class Application {

  /**
   * @ORM\Id
   * @ORM\Column(type="integer")
   * @ORM\GeneratedValue(strategy="AUTO")
   */
  protected $id;

  /**
   * @Assert\File(
   *     maxSize="2M",
   * )
   * @Vich\UploadableField(mapping="cv_file", fileNameProperty="cvName")
   *
   * This is not a mapped field of entity metadata, just a simple property.
   *
   * @var File $cvFile
   */
  protected $cvFile;

  /**
   * @ORM\Column(type="string", length=255, name="cv_name", nullable=true)
   *
   * @var string $cvName
   */
  protected $cvName;

  /**
   * @ORM\Column(type="datetime")
   *
   * @var \DateTime $cvUpdatedAt
   */
  protected $cvUpdatedAt;


  public function __construct() {  }

  /**
   * Get id
   *
   * @return integer
   */
  public function getId() {
    return $this->id;
  }

  /**
   * If manually uploading a file (i.e. not using Symfony Form) ensure an instance
   * of 'UploadedFile' is injected into this setter to trigger the  update. If this
   * bundle's configuration parameter 'inject_on_load' is set to 'true' this setter
   * must be able to accept an instance of 'File' as the bundle will inject one here
   * during Doctrine hydration.
   *
   * @param File|\Symfony\Component\HttpFoundation\File\UploadedFile $cv
   */
  public function setCvFile(File $cv = null) {
    $this->cvFile = $cv;

    if ($cv) {
      // It is required that at least one field changes if you are using doctrine
      // otherwise the event listeners won't be called and the file is lost
      $this->cvUpdatedAt = new \DateTime('now');
    }
  }

  /**
   * @return File
   */
  public function getCvFile() {
    return $this->cvFile;
  }

  /**
   * @param string $cvName
   */
  public function setCvName($cvName) {
    $this->cvName = $cvName;
  }

  /**
   * @return string
   */
  public function getCvName() {
    return $this->cvName;
  }

  /**
   * Set cvUpdatedAt
   *
   * @param \DateTime $cvUpdatedAt
   * @return Application
   */
  public function setCvUpdatedAt($cvUpdatedAt) {
    $this->cvUpdatedAt = $updatcvUpdatedAt;

    return $this;
  }

  /**
   * Get cvUpdatedAt
   *
   * @return \DateTime 
   */
  public function getCvUpdatedAt() {
    return $this->cvUpdatedAt;
  }

}

表单模板：

{% extends 'MyCamsBundle::layout.html.twig' %}
{% form_theme form 'MyCamsBundle:Form:fields.html.twig' %}

{% block body %}
<div class="main">
    {{ form_errors(form) }}
    <div class="row">
        <div class="col-xs-12 col-sm-12 col-md-12 col-lg-12">
            <div class="heading">Application</div>
        </div>
    </div>


    <section id="application-form">
        {{ form_start(form) }}
    <div class="row well demonstrator-experience">
        <div class="col-xs-12 col-sm-12 col-md-12 col-lg-12 cv-details">

        <span class="btn btn-action btn-file">
            {{ form_label(form.cvFile) }} {{ form_widget(form.cvFile) }}
        </span>

        </div>

    <div class="row">
        <div class="col-xs-12 col-sm-12 col-md-12 col-lg-12 text-right">
        </div>
        {{ form_widget(form.save) }}
    </div>
    {{ form_end(form) }}
    </section>

</div>
{% endblock %}

{%extends'MyCamsBundle:：layout.html.twig%}
{%form_主题表单'MyCamsBundle:form:fields.html.twig%}
{%block body%}
{{form_errors（form）}}
应用
{{form_start（form）}}
{{form_标签（form.cvFile）}{{form_小部件（form.cvFile）}}
{{form_小部件（form.save）}
{{form_end（form）}}
{%endblock%}

控制器：

<?php

namespace My\CamsBundle\Controller;

use DateTime;
use Doctrine\ORM\EntityManager;
use Exception;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Symfony\Component\HttpFoundation\Response;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
use Symfony\Component\HttpFoundation\Request;
use My\CamsBundle\Entity\Application;
use My\CamsBundle\Form\ApplicationType;

/**
 * Apply for a casual position.
 *
 * Class ApplicationController
 * @package My\CamsBundle\Controller
 */
class ApplicationController extends Controller
{

    /**
     * Application form.
     *
     * @return \Symfony\Component\HttpFoundation\RedirectResponse|\Symfony\Component\HttpFoundation\Response
     *
     * @Route("/application/create")
     */
    public function createAction()
    {
        $application = new Application();
        $em = $this->getDoctrine()->getManager();
        $form = $this->createFormModel($application);

        return $this->render('MyCamsBundle:Application:create.html.twig', array(
            'form' => $form->createView(),
        ));
    }

    /**
     * Application save form.
     *
     * @param \Symfony\Component\HttpFoundation\Request $request
     * @return \Symfony\Component\HttpFoundation\RedirectResponse|\Symfony\Component\HttpFoundation\Response
     *
     * @Route("/application/save")
     */
    public function saveAction(Request $request)
    {
        $em = $this->getDoctrine()->getManager();
        $raw_application = $request->get('application');
        $request->request->set('application', $raw_application);
        $application = new Application();
        $form = $this->createFormModel($application);
        $form->handleRequest($request);
        $application_id = 0;

        try {
            if ($form->isValid()) {
                $application = $form->getData();

                $em->merge($application);
                $em->flush();
                $application_id = $application->getId();
            } else {
                return $this->render('MyCamsBundle:Application:create.html.twig', array(
                    'form' => $form->createView(),
                ));
            }
        } catch (Exception $e) {
            $request->getSession()->getFlashBag()->add(
                'notice', 'Failed to save changes'
            );
            $logger = $this->get('logger');
            $logger->error($e->getMessage());

            return $this->render('MyCamsBundle:Application:create.html.twig', array(
                'form' => $form->createView(),
            ));
        }

        return $this->redirect($this->generateUrl('my_cams_application_update'));
    }

    /**
     * Application edit form. This is the applicant's dashboard.
     *
     * @return \Symfony\Component\HttpFoundation\RedirectResponse|\Symfony\Component\HttpFoundation\Response
     *
     * @Route("/application/update")
     */
    public function updateAction()
    {
        $em = $this->getDoctrine()->getManager();

        // etc.
    }

    /**
     * @param $application
     * @return \Symfony\Component\Form\Form
     */
    private function createFormModel($application)
    {
        $form = $this->createForm(new ApplicationType(), $application, array(
                'action' => $this->generateUrl('my_cams_application_save')
            )
        );

        return $form;
    }

}

---

不确定这是否有帮助，但会更改：
$cvUpdatedAt
和
$updatedAt
。就我而言，它起了作用
 欢迎来到堆栈溢出！这看起来比严格需要的代码还要多。您是否可以进一步减少代码，直到仍然遇到问题时无法删除任何代码？（另外，代码段标记是完全错误的；只保留代码块。）您使用的是什么版本的vich/uploader捆绑包？我无法使用最新版本，必须使用v0.14.0。与1.0相比，此版本运行良好。*@dev。也许这会有所帮助。将此
“vich/uploader捆绑包”：“0.14.0”
添加到VichUploader的composer.json.Version 1.0.x-dev中。已经搬到VlabsMediaBundle。
{% extends 'MyCamsBundle::layout.html.twig' %}
{% form_theme form 'MyCamsBundle:Form:fields.html.twig' %}

{% block body %}
<div class="main">
    {{ form_errors(form) }}
    <div class="row">
        <div class="col-xs-12 col-sm-12 col-md-12 col-lg-12">
            <div class="heading">Application</div>
        </div>
    </div>


    <section id="application-form">
        {{ form_start(form) }}
    <div class="row well demonstrator-experience">
        <div class="col-xs-12 col-sm-12 col-md-12 col-lg-12 cv-details">

        <span class="btn btn-action btn-file">
            {{ form_label(form.cvFile) }} {{ form_widget(form.cvFile) }}
        </span>

        </div>

    <div class="row">
        <div class="col-xs-12 col-sm-12 col-md-12 col-lg-12 text-right">
        </div>
        {{ form_widget(form.save) }}
    </div>
    {{ form_end(form) }}
    </section>

</div>
{% endblock %}

<?php

namespace My\CamsBundle\Controller;

use DateTime;
use Doctrine\ORM\EntityManager;
use Exception;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Symfony\Component\HttpFoundation\Response;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
use Symfony\Component\HttpFoundation\Request;
use My\CamsBundle\Entity\Application;
use My\CamsBundle\Form\ApplicationType;

/**
 * Apply for a casual position.
 *
 * Class ApplicationController
 * @package My\CamsBundle\Controller
 */
class ApplicationController extends Controller
{

    /**
     * Application form.
     *
     * @return \Symfony\Component\HttpFoundation\RedirectResponse|\Symfony\Component\HttpFoundation\Response
     *
     * @Route("/application/create")
     */
    public function createAction()
    {
        $application = new Application();
        $em = $this->getDoctrine()->getManager();
        $form = $this->createFormModel($application);

        return $this->render('MyCamsBundle:Application:create.html.twig', array(
            'form' => $form->createView(),
        ));
    }

    /**
     * Application save form.
     *
     * @param \Symfony\Component\HttpFoundation\Request $request
     * @return \Symfony\Component\HttpFoundation\RedirectResponse|\Symfony\Component\HttpFoundation\Response
     *
     * @Route("/application/save")
     */
    public function saveAction(Request $request)
    {
        $em = $this->getDoctrine()->getManager();
        $raw_application = $request->get('application');
        $request->request->set('application', $raw_application);
        $application = new Application();
        $form = $this->createFormModel($application);
        $form->handleRequest($request);
        $application_id = 0;

        try {
            if ($form->isValid()) {
                $application = $form->getData();

                $em->merge($application);
                $em->flush();
                $application_id = $application->getId();
            } else {
                return $this->render('MyCamsBundle:Application:create.html.twig', array(
                    'form' => $form->createView(),
                ));
            }
        } catch (Exception $e) {
            $request->getSession()->getFlashBag()->add(
                'notice', 'Failed to save changes'
            );
            $logger = $this->get('logger');
            $logger->error($e->getMessage());

            return $this->render('MyCamsBundle:Application:create.html.twig', array(
                'form' => $form->createView(),
            ));
        }

        return $this->redirect($this->generateUrl('my_cams_application_update'));
    }

    /**
     * Application edit form. This is the applicant's dashboard.
     *
     * @return \Symfony\Component\HttpFoundation\RedirectResponse|\Symfony\Component\HttpFoundation\Response
     *
     * @Route("/application/update")
     */
    public function updateAction()
    {
        $em = $this->getDoctrine()->getManager();

        // etc.
    }

    /**
     * @param $application
     * @return \Symfony\Component\Form\Form
     */
    private function createFormModel($application)
    {
        $form = $this->createForm(new ApplicationType(), $application, array(
                'action' => $this->generateUrl('my_cams_application_save')
            )
        );

        return $form;
    }

}

<?php

namespace My\CamsBundle\Entity\Repository;

use Doctrine\ORM\EntityRepository;

/**
 * ApplicationRepository
 *
 * This class was generated by the Doctrine ORM. Add your own custom
 * repository methods below.
 */
class ApplicationRepository extends EntityRepository
{
}