public function loadCatMenues()
    {
        $this->_load(self::TYPE_CATEGORY_MENU);
        $aArray = [];

        if ($this->count()) {
            foreach ($this as $oContent) {
                // add into category tree
                if (!isset($aArray[$oContent->getCategoryId()])) {
                    $aArray[$oContent->getCategoryId()] = [];
                }

                $aArray[$oContent->oxcontents__oxcatid->value][] = $oContent;
            }
        }

        $this->_aArray = $aArray;
    }