Are events global?

Yii 1.1 General Discussion
1

Hi there,

I have a class: User

I would like to add a new event: onNewUser, which I call in User::save when a new instance of User is saved:




public function beforeSave() {

    if ($this->isNewRecord) {

        //raise event

    }

    return parent::beforeSave();

}

Then, in some place elsewhere, I would like to attach a function to this event. So that when a new User is created, the function will be called.

How do I do that?

Thanks in advance :)

2

You could find example of implementation here: http://www.yiiframework.com/forum/index.php?/topic/15634-extension-yii-events-observer-for-models/page__p__77597

3

Thanks, that’s exactly what I needed. Think this is a limitation to Yii, hopefully it will be implemented some times…

4

Wow, I got a fatal error about some SQL query as soon as I extended CActiveRecord.

5

I did not find the actual problem, but with inspiration from Weavora team, I ended up doing:




<?php


class BaseActiveRecord extends CActiveRecord {

	

	private static $_events = array();

	

	public function init() {

		$this->attachEvents(self::$_events);

		return parent::init();

	}

	

	private function attachEvents($events) {

		foreach ($events as $event) {

			if ($event['component'] == get_class($this)) parent::attachEventHandler($event['name'], $event['handler']);

		}

	}

	

	public function attachGlobalEventHandler($name,$handler) {

		self::$_events[] = array(

			'component' => get_class($this),

			'name' => $name,

			'handler' => $handler

		);

	}

	

	public function detachGlobalEventHandler($name,$handler) {

		foreach (self::$_events as $index => $event) {

			if ($event['name'] == $name && $event['handler'] == $handler && $event['component'] == get_class($this)) unset(self::$_events[$index]);

		}

	}

	

}


?>

It works perfectly to my needs, and now I can both assign handlers as usual, but also do it globally.

Thanks.