protected function _addCategoryFields($oVendor)
    {
        $oVendor->oxcategories__oxid = new \OxidEsales\Eshop\Core\Field("v_" . $oVendor->oxvendor__oxid->value);
        $oVendor->oxcategories__oxicon = $oVendor->oxvendor__oxicon;
        $oVendor->oxcategories__oxtitle = $oVendor->oxvendor__oxtitle;
        $oVendor->oxcategories__oxdesc = $oVendor->oxvendor__oxshortdesc;

        $oVendor->setIsVisible(true);
        $oVendor->setHasVisibleSubCats(false);
    }