/**
* Get hierarchy product data
*
* @param ProductData $productData Product data
*
* @return array
*/
protected function _getHierarchyProductData(ProductData $productData)
{
$levels = str_split($productData->getLevel(), 2);
$hierarchy = [end($levels) => ['value' => $productData->getValue()]];
array_pop($levels);
array_walk(array_reverse($levels), function ($index) use(&$hierarchy) {
$hierarchy = [$index => $hierarchy];
});
return $hierarchy;
}
/**
* Get hierarchy product data
*
* @param ProductData $productData Product data
*
* @return integer
*/
protected function _getProductLevel(ProductData $productData)
{
return strlen($productData->getLevel()) / ProductData::LEVEL_LENGTH;
}
