What is event in yii? How to use event in yii?
Example:
public function onForestRan($event){
$this->raiseEvent('onForestRan', $event);
}
$myComponent->onForestRan = array(new SomeOtherClass, 'eventHandler1');
When the event is triggered?
What is event in yii? How to use event in yii?
Example:
public function onForestRan($event){
$this->raiseEvent('onForestRan', $event);
}
$myComponent->onForestRan = array(new SomeOtherClass, 'eventHandler1');
When the event is triggered?
Hi, create this controller and run it, i think once you do this everything will make sense to you 
class SomeController extends CController
{
protected $number = 0;
public function init()
{
parent::init();
$this->onBeforeHelloWorld = array($this, 'firstHelloCallback');
$this->attachEventHandler('onBeforeHelloWorld', array($this, 'secondHelloCallback'));
$this->onBeforeHelloWorld = array($this, 'thirdHelloCallback');
$this->onAfterHelloWorld = array($this, 'firstByeCallback');
$this->attachEventHandler('onAfterHelloWorld', array($this, 'secondByeCallback'));
$this->onAfterHelloWorld = array($this, 'thirdByeCallback');
}
public function onBeforeHelloWorld()
{
$this->raiseEvent('onBeforeHelloWorld', new CEvent($this));
}
public function onAfterHelloWorld(CEvent $event)
{
$this->raiseEvent('onAfterHelloWorld', $event);
}
public function actionIndex()
{
$this->onBeforeHelloWorld();
echo 'Hello world!!! <hr />';
$this->onAfterHelloWorld(new CEvent($this, array('otherNumber' => 12345)));
}
public function firstHelloCallback($event)
{
echo 'I am in the first hello callback<br />';
$this->number = $event->params['number'] = 1024;
}
public function secondHelloCallback($event)
{
echo sprintf('I am in the second hello callback and i have the number %d <br />', $event->params['number']);
$this->number = $event->params['number'] = 2048;
}
public function thirdHelloCallback($event)
{
echo sprintf('I am in the third hello callback and i have the number %d <br />', $event->params['number']);
}
public function firstByeCallback($event)
{
echo sprintf('I am in the first after hello callback and i can see a previous callback has set the $number to be %d<br />', $this->number);
echo sprintf('The default value for $otherNumber is %d <br />', $event->params['otherNumber']);
$event->params['otherNumber'] = 100;
}
public function secondByeCallback($event)
{
echo sprintf('I am in the second after hello callback and i have the otherNumber set to %d <br />', $event->params['otherNumber']);
$event->params['otherNumber'] = 200;
}
public function thirdByeCallback($event)
{
echo sprintf('I am in the third after hello callback and i have the otherNumber %d <br />', $event->params['otherNumber']);
}
}