Question

我是Symfony2（或Symfony3）的新手，我找不到如何设置doctrine（带注释配置），以便在“创建”或“修改”字段时自动将其保存在我的实体中。

Answer 1

此后我的解决方案......

您只需将其直接放入您的实体类中：

/**
 * @ORM\Entity
 * @ORM\HasLifecycleCallbacks
 */
class MyEntity {

   //....

    public function __construct() {
        // we set up "created"+"modified"
        $this->setCreated(new \DateTime());
        if ($this->getModified() == null) {
            $this->setModified(new \DateTime());
        }
    }

    /**
     * @ORM\PrePersist()
     * @ORM\PreUpdate()
     */
    public function updateModifiedDatetime() {
        // update the modified time
        $this->setModified(new \DateTime());
    }

    //....    
}

实际上效果很好

Answer 2

您可以使用StofDoctrineExtensionsBundle。这在symfony cookbook中描述。它包含Timestampable行为。

/**
 * @var datetime $created
 *
 * @Gedmo\Timestampable(on="create")
 * @ORM\Column(type="datetime")
 */
private $created;

/**
 * @var datetime $updated
 *
 * @Gedmo\Timestampable(on="update")
 * @ORM\Column(type="datetime")
 */
private $updated;

Answer 3

/**
 *
 * @ORM\PrePersist
 * @ORM\PreUpdate
 */
public function updatedTimestamps()
{
    $this->setModifiedAt(new \DateTime(date('Y-m-d H:i:s')));

    if($this->getCreatedAt() == null)
    {
        $this->setCreatedAt(new \DateTime(date('Y-m-d H:i:s')));
    }
}

您无需拨打__constructor任何内容。只需创建getter和setter属性created，modified即可。

如果您在每次更新时首先设置setCreated()，您还会更新created列。所以先放setModifedAt()

Answer 4

另外两个示例（如果您使用的是Yaml或Xml映射）：

Entity\Product:
  type: entity
  table: products
  id:
    id:
      type: integer
      generator:
        strategy: AUTO
  fields:
    name:
      type: string
      length: 32
    created_at:
      type: date
      gedmo:
        timestampable:
          on: create
    updated_at:
      type: datetime
      gedmo:
        timestampable:
          on: update

和xml：

<?xml version="1.0" encoding="UTF-8"?>
<doctrine-mapping xmlns="http://doctrine-project.org/schemas/orm/doctrine-mapping"
                  xmlns:gedmo="http://gediminasm.org/schemas/orm/doctrine-extensions-mapping">

    <entity name="Mapping\Fixture\Xml\Timestampable" table="timestampables">
        <id name="id" type="integer" column="id">
            <generator strategy="AUTO"/>
        </id>

        <field name="created_at" type="datetime">
            <gedmo:timestampable on="create"/>
        </field>
        <field name="updated_at" type="datetime">
            <gedmo:timestampable on="update"/>
        </field>
    </entity>

</doctrine-mapping>

Answer 5

The other answers suggest using if statements (which means repeating your property names) and having property-setting logic in the constructor that might never be used.

Alternatively, you could have onAdd and onUpdate methods that are called when needed:

/**
 * @ORM\PrePersist
 */
public function onAdd()
{
    $this->setAdded(new DateTime('now'));
}

/**
 * @ORM\PrePersist
 * @ORM\PreUpdate
 */
public function onUpdate()
{
    $this->setUpdated(new DateTime('now'));
}

Symfony - ＆gt;如何使用Doctrine使创建和修改的字段动态化？

5 个答案: