CActiveRecord cloning

[undsoft]

Yii does not support cloning at the moment.

It could be useful.
Consider the following scenario:

$customersShopA = Customer::model()->byMonth()->notDrunk();

$customersShopB = clone $customersShopA;

$customersShopA->byShop('A')->findAll();
$customersShopB->byShop('B')->findAll();

Where ->byMonth() and ->byShop() are scopes defined like this:

public function byShop($shop){
        $this->getDbCriteria()->mergeWith(array(
            'condition'=>'shop = :shop',
            'params'=>array(
                ':shop'=>$shop
            )
        ));

        return $this;
    }

This happens because $this->_c in the model points to the same object.

I know that I can workaround this. Just thought that having this feature in the box would be nice.

[klimov-paul]

Actually Yii does not support cloning for its classes.

This may cause a lot of troubles, and CActiveRecord is only the top of the iceberg.

"CComponent" class introduces a "behavior" feature, however it does not provide the method "__clone". So if you have attached a behavior to some "CComponent" instance and then has cloned this instance the 2 component objects will share the same behavior object.

Allowing Yii "CComponent" and its child classes to be cloned is a big deal. I am not sure how this can be done properly.

[samdark]

Will not be supported in 1.1.

[motin]

Seems to be supported in Yii2: https://github.com/yiisoft/yii2/blob/master/framework/base/Component.php#L211

[samdark]

Yes, it is implemented in Yii2.