Multiple behaviors with afterSave() attached a model class

Yii 1.1 General Discussion
1

If multiple behaviors with afterSave() attached a model class, which one will take effect? Or all of them? If latter, what is the order? Thanks!

2

Seems that only the last attached one is invoked

3

You can try add the parent reference:

protected function afterSave(){

parent::afterSave();


....your code

}

4

But a behavior’s parent is not an instance of CActiveRecord

5

Use $this->owner->afterSave();

6

So what’s the best way to get all of the behaviors afterSave() (or in my case, both beforeSave() AND afterConstruct()) working?

The best I can fathom is rename the behavior’s methods and then call those methods from the model’s beforeSave() (et al), but I’m hoping for something better…

7

All the behaviors attached to a model will be executed in the order they have been attached.

For before* methods (for behaviors) the signature needs to look like:




public function beforeSave($event)

{

   //execute code here


   return parent::beforeSave($event);// be sure you have this line.

}

for after* methods:




public function afterSave($event)

{

   //execute code here


   parent::afterSave($event); // don't forget this line.

}

Same thing goes for model based events but without having to pass the $event instance.

As long as you follow this convention, all your behaviors attached to a model will be executed.

8

The behavior flavour of before/after methods don’t use return values. (The corresponding protected model methods do, when applicable)

I have not used this yet, but it seems like the status should be communicated by the events isValid property.

/Tommy

9

Even though I’m only using two 3rd party behaviors, it’s strange that none of the ones I’ve downloaded actually use this convention.

Thanks for your help.