Cakephp 3回调，所有模型的行为 [英] Cakephp 3 callbacks, behaviors for all models

问题描述

我刚刚开始阅读cakephp 3文档（我一直在使用cake 2.x进行开发），并且希望将某些网站从2.x迁移到3。在我的 AppModel 我有一些回调，尤其是 beforeFind 和 beforeSave ，其中包含一些有关几乎所有表的逻辑在数据库中。

I just started reading cakephp 3 docs (I have been developing with cake 2.x for some time) and want to migrate some website from 2.x to 3. In cake 2 in my AppModel I have some callbacks, particularly beforeFind and beforeSave, that contain some logic concerning almost all tables in a database.

现在蛋糕3中没有 AppModel ，我该怎么做？我能想到的最好的方法是将该代码放入某些行为的回调中，但是我有30个模型，是否应该一一加载所有模型中的行为？

Now in cake 3 there is no AppModel, how do I get the same thing done ? The best I can think of is to put that code in some behavior's callbacks, but I have like 30 models, should I load the behavior in all models one by one ?

谢谢

推荐答案

使用事件监听器监听事件 Model.beforeSave ， Model.beforeFind 和 Model.initialize 并在此应用您想要执行的任何操作。 阅读有关事件的章节和表回调的文档。

Use an event listener that listens to the events Model.beforeSave, Model.beforeFind and Model.initialize and apply whatever you want to do there. Read the chapter about events and the documentation for table callbacks.

use Cake\Event\EventListenerInterface;
use Cake\Event\Event;

class SomeListener implements EventListenerInterface
{

    public function implementedEvents()
    {
        return [
            'Model.beforeFind' => 'beforeFind',
        ];
    }

    public function beforeFind(Event $event, Query $query, ArrayObject $options, boolean $primary)
    {
        // Your code here
    }
}

并将其附加到 全局 事件管理器。现在它将监听 all 表对象的回调。

And attach it to the global event manager. It will now listen to the callbacks of all table object.

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