public static function getCollectionSelectValues($attrHandle = '')
 {
     // Loader::model('attribute/type');
     // Loader::model('attribute/categories/collection');
     $ak = CollectionAttributeKey::getByHandle($attrHandle);
     $satc = new SelectAttributeTypeController(AttributeType::getByHandle('select'));
     $satc->setAttributeKey($ak);
     return $satc->getOptions();
 }