在 preUpdate Sonata Admin Bundle 中获取旧数据 [英] Get old data in preUpdate Sonata Admin Bundle

问题描述

我有一个 product 实体，它有一个 images 字段，用于存储产品中的图像名称，但图像名称取决于 part_number 字段是唯一的，所以如果用户在零件号中犯了错误并且他想编辑它，那么我也必须更改图像名称

I have a product entity and it has an images field that store the images names from the product but the images names depends of a part_number field that is unique, so if the user make a mistake in the part number and he wants to edit it then I also have to change the images names

我试过了，但它不起作用:

I tried this but it does not works:

// class ProductsAdmin extends Admin

public function preUpdate($product) {

    $old_product = $this->getSubject();

    if ($old_product->getPartNumber() != $product->getPartNumber)
    {
         // change file names
    }

    $this->saveFile($product);
}

如何在 preUpdate() 函数中获取原始行?

How I get the original row in preUpdate() function?

推荐答案

根据官方 SonataAdmin google 论坛的主题:https://groups.google.com/forum/#!topic/sonata-devs/0zML6N13i3U您需要使用 UnitOfWork 类:http://www.doctrine-project.org/api/orm/2.3/class-Doctrine.ORM.UnitOfWork.html

According to the topic taken from the official SonataAdmin google forum: https://groups.google.com/forum/#!topic/sonata-devs/0zML6N13i3U you need to make use of the class UnitOfWork: http://www.doctrine-project.org/api/orm/2.3/class-Doctrine.ORM.UnitOfWork.html

这样做:

public function preUpdate($object)
{
    $em = $this->getModelManager()->getEntityManager($this->getClass());
    $original = $em->getUnitOfWork()->getOriginalDocumentData($object);
}

因此，您将获得数据库实体的值数组.例如:要访问您的实体的 password 值，请执行以下操作:

Thus you get an array of values of your database entity. E.g: to get access to the value password of your entity do:

$password = $original['password'];

仅此而已.享受:)

这篇关于在 preUpdate Sonata Admin Bundle 中获取旧数据的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！