Magento brands by categories: show brand link

I'm setting up a webshop for a client in Magento. He works a lot with very specific brands, so I wanted to make specific brands pages (for SEO pur开发者_StackOverflowposes).

I followed the suggestion mentioned here: Mangento Shop By Brand to make categories out of brands. It all works great, I can access my pages like example.com/brands/brandname.

But now, when in a products view, I want to link to that brand page. How can I get a list of the categories for that product, or even the specific subcategory. I thought about filtering categories by their parent_id (my brands page itself). But haven't got a clue how to go about doing it. I found som info here but doesn't seem to work for my Magento (1.4.1.1)

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It seems to do the work: Aitoc commercial module to shop by brand

Or I tried this code with Magento 1.4.1 which display the list/url of category/ies that the product belongs to, inspired of the link you provided and it works, put it in a block to allow the template to display the url:

public function getProductUrl($productId){
    $product = Mage::getModel('catalog/product')->load(productId);
    $currentCatIds = $product->getCategoryIds();
    if ($currentCatIds) {
        $categoryCollection = Mage::getResourceModel('catalog/category_collection')->addAttributeToSelect('name')
            ->addAttributeToSelect('url')
            ->addAttributeToFilter('entity_id', $currentCatIds)
            ->addIsActiveFilter();
        foreach ($categoryCollection->getItems() as $item) {
            /*echo $item->getName();
            echo $item->getUrl();
            echo '<br>';*/
            if($item->getUrl()) return $item->getUrl();
        }
    }
}