Example how to customize Phundament Bootstrap Menu with P3Pages and custom database items.

Helper.php

<?php
class Helper
{
    static public function getMenuItems($rootNode = null)
    {
        if ($rootNode === null) {
            $rootNode = P3Page::model()->findByAttributes(array('layout' => '_BootMenu'));
        }

        $items             = P3Page::getMenuItems($rootNode);
        $items[0]['items'] = array();
        $subjects          = Subject::model()->findAll();
        foreach ($subjects AS $subject) {
            $items[0]['items'][] = array('label' => $subject->name,
                                         'url'   => Yii::app()->controller->createUrl('/site/archive', array('id' => $subject->id)));
        }

        return $items;
    }
}