How get category ID of products on wishlist and compare pages

Question

I want get category ID of products on wishlist and compare page (on wishlist and compare pages I add products of different categories).

On the helper of my module I write:

Mage::registry('current_category');

(and then ->getId())but I get NULL (on other pages - GOOD!)

When on the helper of my module I write:

Mage::getSingleton('catalog/session')->getLastVisitedCategoryId();

I get category Id of last category. It's wrong for me, becouse in wishlist or compare there are product of different categories.

Answer 1

You can add add new Row in catalog/product/compare/list.phtml

header <th> field as category id and in detail <td> field get the category of product.

You will get array of category ids.

$categories=$_item->getCategoryIds()
foreach($categories as $category)
   echo Mage::getModel("catalog/category")->load($category)->getName();

In same way you can try for wishlist.

Answer 2

I write function to my block

    public function getCategory()
{
    $_item=$this->getProduct();
    $_product = Mage::getModel('catalog/product')->load($_item->getId());
    $ids = $_product->getCategoryIds();
    $category = (isset($ids[0]) ? $ids[0] : null);
    return $category;
}