<?php

class appProductAttributeBackendBreadcrumbsBuilder extends autoAppProductAttributeBackendBreadcrumbsBuilder
{
    public function getDefaultBreadcrumbs()
    {
        if (null === $this->defaultBreadcrumbs)
        {
            $breadcrumbs = parent::getDefaultBreadcrumbs();  

            if (isset($this->forwardParameters['category_id']) && $this->forwardParameters['category_id'])
            {
                $category = CategoryPeer::retrieveByPK($this->forwardParameters['category_id']);
                
                foreach ($category->getPath() as $parent)
                {
                    $breadcrumbs->add($parent->getOptName(), !$parent->isRoot() ? '@stProduct?action=list&category_id='.$parent->getId() : null);
                }

                $breadcrumbs->add($category->getOptName(), '@stProduct?action=list&category_id='.$category->getId());
            }

            $this->defaultBreadcrumbs = $breadcrumbs;
        }      

        return $this->defaultBreadcrumbs;
    }
}