change data provider data

Is it possible to change dataprovider data?

I have two arrays:

1. $array_of_ids

2. $array_of_quantities

I have model based on db table Product.

I need to do something like this:

1. Create $where statement based on $array_of_ids.

$dataProvider = new CActiveDataProvider('Product', array(			

			'criteria' => array(

				'scopes' => array(

					'active',

				),

				'condition' => $where

			))

		);		

2. Product model contains Quantity item that doesn’t come from databse, but from $array_of_quantities.

I need to loop through $dataProvider items and through $array_of_quanties.

For matching IDs I need to change $dataProvider item Quantity to display it in CListView.

How can I do this?