Search result display

Question

I am trying to display the search result sorted by attribute_set_id.

I want to display them with the title as the name of the first attribute_set and then all the products that belong to attribute_set_id 1 and then title of attribute_set 2 and then the products in attribute set 2.

Any one got an idea on how i can make this happened?

I have tried to sort the result list by the following code

<?php $_productCollection = clone $this->getLoadedProductCollection();

$_productCollection->clear()
    ->addAttributeToSelect('*')
    ->addAttributeToSort('attribute_set_id', 'DESC')
    ->load();
?>   

Answer 1

Try to use ->setOrder('attribute_set_id', 'DESC') because ->addAttributeToSort applies to EAV types only

setOrder($field, $direction = self::SORT_ORDER_DESC) is from Varien/Data/Collection.php so should work fine