Exclude categories from category list of a product

Question

I added categories unordered list on product page with the following code

<?php
        $currentCatIds = $_product->getCategoryIds();
        $categoryCollection = Mage::getResourceModel('catalog/category_collection')
                             ->addAttributeToSelect('name')
                             ->addAttributeToSelect('url')
                             ->addAttributeToFilter('entity_id', $currentCatIds)
                             ->addIsActiveFilter();
                             foreach($categoryCollection as $cat){
          echo '<li> <a href="'.$cat->getUrl().'" title="'.$cat->getName().' ">'.$cat->getName().'</a> </li>';
        }

        ?>

I use some "service" categories and for this I set "not included in menu and in category list"

Is it possible to hide this "special categories" from the product detail list?

Answer 1

Add this to your filters:

->addAttributeToFilter('include_in_menu', array('eq'=>1))

Answer 2

Try below code

<?php
$currentCatIds = $_product->getCategoryIds();
$categoryCollection = Mage::getModel('catalog/category')->getCollection()
        ->addAttributeToSelect('*')
        ->addAttributeToFilter('include_in_menu', array('eq'=>true))
        ->addIdFilter($currentCatIds)
        ->addIsActiveFilter();
?>

You will need to use ->addAttributeToFilter('include_in_menu', array('eq'=>true)) which is default attribute filter function in Magento.

For addIdFilter($currentCatIds), there is default function in category resource class.

Class: Mage_Catalog_Model_Resource_Category_Collection

Function: addIdFilter($categoryIds)

Param: array $categoryIds