Update After Save (Infinitive Loop)

Yii 1.1 General Discussion
1

Hi

I have a model related by another one

the schema’s are:

model1: id, default_model2_id (null is permitted)

model2: id, model1_id (is required!)

I want to save them but there is a problem

If the first model when it is new record, there is not id yet to save the second model.

So in this case I save the first model on beforeSave and on afterSave I save the second one and update the first one

pseudocode


beforeSave() {

 -save the first

}


afterSave() {

 -save the second (related with the first model id -> now the id exists!)

 -update the first one (related with the second model, id just created on the previous line

}

The problem is the update function invokes the beforeSave again, causing infinite loop!

Does anyone has a robust way to solve this problem?

I could set a flag on the afterSave method to prevent the beforeSave again but I want a better aproach!

Thanks :)

2

Hi,

First You can save the unique id model2 and then after you can use this unique id and update the modle id

3

Can you not condition the beforeSave with isNewRecord

cheers

4

I set isNewRecord to false according to another post but not works because beforeSave is called independent of ‘isNewRecord’

5

I cannot save the model2 before save the model1 because the first one (model2) requires the id of second one (model1)

6

Ok I found the solution

I migrated the code of beforeSave() to beforeValidate()

I replace $this->update() (or $this->save() or $this->save(false)) with

$this->saveAttributes().

According to this documentation

http://www.yiiframework.com/doc/api/1.1/CActiveRecord#saveAttributes-detail

saveAttributes not call either beforeSave or afterSave!

May is was not required to migrate my code to beforeValidate(), but for extra reasons I deside to do that.

So the solution was the method ‘saveAttributes’

Thanks for your response!