Symfony2将docx文件存储到数据库中

Question

我正在尝试将.docx文件存储到mysql数据库中。我知道.docx个文件实际上是.zip个文件。但是，我正在尝试将它们存储到blob字段中，因此应该有任何区别。

如果我尝试存储的文件不是.docx，请说.png, .jpeg, .pdf。一切正常，但是当我尝试存储.docx文件时，我得到500作为响应，没有错误消息。

这是我的代码：

public function saveResumee($slug, $file)
  {
    $em = $this->getEntityManager();

    $resumee = new File(file_get_contents($file), $file->getMimeType(), $file->guessExtension(), $file->getClientSize());
    $em->persist($resumee);
    $em->flush(); // Everything blows up here!
    ...

    return true;
  }

这是我的File实体

<?php

namespace DnD\RaHApiBundle\Entity;

use Doctrine\ORM\Mapping as ORM;

/**
 * File
 *
 * @ORM\Table()
 * @ORM\Entity
 */
class File
{

  public function __construct($data, $type, $extension, $length)
  {

    $this->data = $data;
    $this->type = $type;
    $this->extension = $extension;

    if ($length) $this->length = $length;
  }

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

  /**
   * @var string
   *
   * @ORM\Column(name="data", type="blob")
   */
  private $data;

  /**
   * @var string
   *
   * @ORM\Column(name="extension", type="string", length=255)
   */
  private $extension;

  /**
   * @var integer
   *
   * @ORM\Column(name="length", type="integer")
   */
  private $length;

  /**
   * @var string
   *
   * @ORM\Column(name="type", type="string", length=16)
   */
  private $type;


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

  /**
   * Set data
   *
   * @param string $data
   * @return File
   */
  public function setData($data)
  {
    $this->data = $data;

    return $this;
  }

  /**
   * Get data
   *
   * @return string
   */
  public function getData()
  {
    return $this->data;
  }

  /**
   * Set length
   *
   * @param integer $length
   * @return File
   */
  public function setLength($length)
  {
    $this->length = $length;

    return $this;
  }

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

  /**
   * Set type
   *
   * @param string $type
   * @return File
   */
  public function setType($type)
  {
    $this->type = $type;

    return $this;
  }

  /**
   * Get type
   *
   * @return string
   */
  public function getType()
  {
    return $this->type;
  }

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

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

这有什么问题？