// special case for cactivedataprovider - dont pull active
// records cause its crazy overhead. bypass that shizzle dawg. tits.
if($this->dataProvider instanceof CActiveDataProvider) {
    if ($this->convertADPtoCommand) {
        // method you already implemented
    } else {
        // get array of ActiveRecord models
        $models = $this->dataProvider->getData();

        // convert to array
        $data = array();
        $attributes = $this->dataProvider->model->getMetaData()->columns;
        foreach($models as &$model) {
            $row = array();
            foreach($attributes as $attribute=>$col) {
                $row[$attribute] = $model->{$attribute};
            }
            $data[] = $row;
        }
    }
} else {
    (..)