Doctrine_manual-1-2-en

Chapter 22: Event Listeners 309
Chapter 22
Event Listeners
Introduction
Doctrine provides flexible event listener architecture that not only allows listening for
different events but also for altering the execution of the listened methods.
There are several different listeners and hooks for various Doctrine components. Listeners
are separate classes whereas hooks are empty template methods within the listened class.
Hooks are simpler than event listeners but they lack the separation of different aspects. An
example of using Doctrine_Record hooks:
// models/BlogPost.php
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class BlogPost extends Doctrine_Record
{
// ...
public function preInsert($event)
{
$invoker = $event->getInvoker();
}
}
$invoker->created = date('Y-m-d', time());
By now we have defined lots of models so you should be able to define your own
setTableDefinition() for the BlogPost model or even create your own custom model!
Now you can use the above model with the following code assuming we added a title, body
and created column to the model:
// test.php
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// ...
$blog = new BlogPost();
$blog->title = 'New title';
$blog->body = 'Some content';
$blog->save();
echo $blog->created;
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