Symfony 4实体datetime字段返回当前日期,而不是数据库。
我有一个实体图像,该图像将更新日期存储在一个名为updatedAt的字段中。
<?php /** @noinspection PhpFullyQualifiedNameUsageInspection */
namespace App\Entity;
use Doctrine\Common\Collections\ArrayCollection;
use Doctrine\Common\Collections\Collection;
use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\HttpFoundation\File\File;
use Vich\UploaderBundle\Mapping\Annotation as Vich;
/**
* @ORM\Entity(repositoryClass="App\Repository\ImageRepository")
* @Vich\Uploadable
*/
class Image
{
/**
* @ORM\Id()
* @ORM\GeneratedValue()
* @ORM\Column(type="integer")
*/
private $id;
/**
* @var File
* @Vich\UploadableField(mapping="images", fileNameProperty="name")
*/
private $file;
/**
* @var string
* @ORM\Column(type="string", length=255)"
*/
private $name;
/**
* @var \DateTime
* @ORM\Column(type="datetime")
*/
private $updatedAt;
/**
* @ORM\ManyToMany(targetEntity="App\Entity\Tag", inversedBy="images", cascade={"persist"})
*/
private $tags;
public function __construct()
{
$this->updatedAt = new \DateTime();
$this->tags = new ArrayCollection();
}
public function getId(): ?int
{
return $this->id;
}
public function getFile(): ?File
{
return $this->file;
}
public function setFile(?File $file = null): void
{
$this->file = $file;
if ($file !== null) {
// 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->updatedAt = new \DateTime();
}
}
public function getName(): ?string
{
return $this->name;
}
public function setName(?string $name): self
{
$this->name = $name;
return $this;
}
public function getUpdatedAt(): ?\DateTimeInterface
{
return $this->updatedAt;
}
public function setUpdatedAt(\DateTimeInterface $updatedAt): self
{
$this->updatedAt = $updatedAt;
return $this;
}
}
但是当我从数据库中检索到它时,updatedAt字段将当前数据时间显示为以下情况:
Image {#646 ▼
-id: 27
-file: File {#698 ▶}
-name: "kPRHHeCVrT.jpg"
-updatedAt: DateTime @1558609804 {#706 ▼
date: 2019-05-23 11:10:04.486082 UTC (+00:00)
}
-tags: PersistentCollection {#686 ▶}
}
和getUpdatedAt方法中的var_dump($this->updatedAt)
显示如下:
object(DateTime)#626 (3) { ["date"]=> string(26) "2019-05-19 21:17:48.000000" ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" }
object(DateTime)#680 (3) { ["date"]=> string(26) "2019-05-23 11:24:12.746548" ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" }
注意2个不同的对象。我不明白为什么会这么做。
答案 0 :(得分:2)
代码中的注释说明了(如您保留在官方的VichUploaderBundle的documentation上一样):
public function setFile(?File $file = null): void
{
$this->file = $file;
if ($file !== null) {
// 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->updatedAt = new \DateTime();
}
}
因此,这意味着每次调用 setFile()方法时,都将当前日期分配给 $ this-> updatedAt 属性。每次创建/更新图像对象时都会调用该方法,因此它将始终保留当前日期。 由于在vich config yaml文件中将inject_on_load参数设置为true,这也可能发生。
我建议您添加一个名为vichUpdatedAt()的新属性,并使用它代替updatedAt():
奖励::我建议您安装以下扩展:https://symfony.com/doc/current/bundles/StofDoctrineExtensionsBundle/index.html 它将允许您轻松地在任意位置添加udpatedAt和createdAt属性。
激活所需的扩展名(在/config/packages/stof_doctrine_extensions.yaml 中),因此对于我们来说,这将是具有时间戳记的扩展名:
stof_doctrine_extensions:
default_locale: en_US
orm:
default:
timestampable: true
然后在您的图像类中,只需添加:
use Gedmo\Timestampable\Traits\TimestampableEntity;
class Image {
use TimestampableEntity;
....
}
然后您就可以使用免费的updatedAt和createdAt属性,无需执行任何其他操作,就可以正常工作。