| protected _prepareAttributeCollection ( Mage_Catalog_Model_Resource_Eav_Resource_Product_Attribute_Collection $collection ) : Mage_Catalog_Model_Resource_Eav_Resource_Product_Attribute_Collection | ||
| $collection | Mage_Catalog_Model_Resource_Eav_Resource_Product_Attribute_Collection | |
| return | Mage_Catalog_Model_Resource_Eav_Resource_Product_Attribute_Collection | |
protected function _prepareAttributeCollection($collection)
{
$collection->addIsFilterableInSearchFilter()->addVisibleFilter();
return $collection;
}