ProductBulkLoader::setParent PHP Method

    public function setParent(&$obj, $val, $record)
    {
        $title = strtolower(Convert::raw2sql($val));
        if ($title) {
            if ($parentpage = DataObject::get_one('ProductCategory', "LOWER(\"Title\") = '{$title}'", '"Created" DESC')) {
                // find or create parent category, if provided
                $obj->ParentID = $parentpage->ID;
                $obj->write();
                $obj->writeToStage('Stage');
                $obj->publish('Stage', 'Live');
                //TODO: otherwise assign it to the first prodcut group found
            } elseif (self::$createnewproductgroups) {
                //create parent product group
                $pg = ProductCategory::create();
                $pg->setTitle($title);
                $pg->ParentID = self::$parentpageid ? $parentpageid : 0;
                $pg->writeToStage('Stage');
                $pg->publish('Stage', 'Live');
                $obj->ParentID = $pg->ID;
                $obj->write();
                $obj->writeToStage('Stage');
                $obj->publish('Stage', 'Live');
            }
        }
    }