Hasilnya

<?php
Yii::import('zii.widgets.CMenu', true);

class ActiveMenu extends CMenu
{
    public function init(){

    $criteria = new CDbCriteria;
    $criteria->condition='published=:idpub AND menu_controller=:menu';
    $criteria->params=array(':idpub'=>1, ':menu'=>'#');

    $items = Menu::model()->findAll($criteria);

    echo "<ul id='yw1' class='nav'>";

        foreach ($items as $item)
        {
            echo "<li class='dropdown'>
                <a href=".$item->menu_controller." data-toggle='dropdown' class='dropdown-toggle'>
                <i class='icon-white icon-list'></i>".$item->menu_name."<b class='caret'></b></a>

                //Pas disini di looping lagi data childnya
                <ul class='dropdown-menu'>
                    <ul class='dropdown-menu'>
                        <li>Child Menu 1</li>
                    </ul>
                    <ul class='dropdown-menu'>
                        <li>Child Menu 2</li>
                    </ul>
                    <ul class='dropdown-menu'>
                        <li>Child Menu 3</li>
                    </ul>
                    dst ...
                    dst ...
                    dst ...
                </ul>
            </li>";
        }

        echo "</ul>";

        parent::init();
    }
}