Magento Layered Navigation - Sort by Number

Question

I would like to sort each of my layered navigation filters by # elements in each filter.

Here's what it shows now -

• Books - 1
• CD - 2
• DVD - 20

What I want to show -

• DVD - 20
• CD - 2
• Books - 1

I looked at the /layer/filter.phtml directory, but I can't figure out how to sort magento collections.

Ideally, I want something like this:

$ this-> getItems () → order ('Count Desc')

How can i do this?

Answer 1

Found a way to do this -

Changed Mage/Catalog/Model/Layer/Filter/Abstract.phpto re-sort using count in a method getItems.

public function getItems()
{
    if (is_null($this->_items)) {
        $this->_initItems();
    }

    //5-16-11 Custom sort
    $items = $this->_items; 
    usort($items, array("Mage_Catalog_Model_Layer_Filter_Abstract", "sortByCount"));  
    return $items;
}

public static function sortByCount($a, $b)
{
    if ($a->getCount() == $b->getCount()) {
        return 0;
    }
    return ($a->getCount() > $b->getCount()) ? -1 : 1;
}

Answer 2

Mage/Catalog/Model/Layer/Filter/Attribute.php. ..