原则 - 将默认时间戳添加到实体，如NOW（） [英] Doctrine - Add default time stamp to entity like NOW()

问题描述

遵循教义指导原则，我了解如何为实体设置默认值，但如果我想要一个日期/时间戳，该怎么办？

Following the Doctrine guidelines I understand how to set a default value for an Entity, but what if I wanted a date/time stamp?

• http://docs.doctrine-project.org/projects/ doctrine-orm / en / 2.1 / reference / faq.html

• http://docs.doctrine-project.org/projects/doctrine-orm/en/2.1/reference/faq.html

我的问题是我的数据库默认为NOW （）在一个字段上，但是当我使用Doctrine插入一个记录时，值为null或空白，但插入的其余部分发生。

My problem is my database has a default of NOW() on a field but when I use Doctrine to insert a record the values are null or blank but the rest of the insert happened.

此外，由于Doctrine声明声明

Also since Doctrine says to declare the default as a const, this also creates a problem.

建议？

推荐答案

确定我找到解决方案：

• https://doctrine-orm.readthedocs.org/en/latest/reference/php-mapping.html?highlight=callbac k


• http://doctrine-orm.readthedocs.org/en/latest/reference/events.html#lifecycle-events

• https://doctrine-orm.readthedocs.org/en/latest/reference/php-mapping.html?highlight=callback
• http://doctrine-orm.readthedocs.org/en/latest/reference/events.html#lifecycle-events

prePersist 选项是我在做的。

确保你在注释

<?php

/** @Entity 
 *  @HasLifecycleCallbacks 
 */
class User

这里是他们提供的功能示例

and here is the function example they offer

/** 
 *  @PrePersist 
 */
public function doStuffOnPrePersist()
{
    $this->createdAt = date('Y-m-d H:i:s');
}

如果你像我一样使用ORM

And if you're using ORM like I am

<?php

/** @ORM\Entity 
 *  @ORM\HasLifecycleCallbacks 
 */
class User

这里是他们提供的函数示例

and here is the function example they offer

/** 
 *  @ORM\PrePersist 
 */
public function doStuffOnPrePersist()
{
    $this->createdAt = date('Y-m-d H:i:s');
}

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