本文介绍了哪里可以使用symfony2实体的slugify方法的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我有一个slugify方法,每次更改实体类的标题属性。
所以我把这个方法放在实体类中并调用它:

I have slugify method that slugify title attribute of entity class every time it change.so I put this method in entity class and call it like this:

public function setTitle($t){
  $this->title = $t;
  $this->slugTitle = $this->slugify($t);
}

它对我来说很好,但如果我有多个使用slugify方法的类我应该将这个方法放在所有的方法中,这是代码重复。

it work fine for me, but if I have more than one class that use slugify method I should put this method in all of them, and this is code duplication.

那么我该怎么办?如果使用helper类,我不能像上面的方法那样使用slugify(): - (。

so what should i do? if use helper class I cannot use slugify() like upper method :-(.

推荐答案

你可以使用听取实体更改并对其执行操作。

You can use a Doctrine event listener/subscriber to listen to entity changes and act on them.

namespace Acme\DemoBundle\EventListener;

use Doctrine\ORM\Event\LifecycleEventArgs;

class SlugifyListener
{
    public function preUpdate(LifecycleEventArgs $args)
    {
        $entity = $args->getEntity();
        $entityManager = $args->getEntityManager();

        // do something with $entity...
    }
}

<service id="my.listener" class="Acme\DemoBundle\EventListener\SlugifyListener">
    <tag name="doctrine.event_listener" event="preUpdate" />
</service>

然而,在这种情况下,更好地了解。它提供了一个可伸缩的延伸,可以为您做这个,而不是重新发明轮。

However in this case, you're better off taking a look at the Doctrine Extensions bundle. It provides a Sluggable extension which can do this for you, rather than reinventing the wheel.

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10-25 07:18