N98\Magento\Command\Developer\Module\UpdateCommand::addLayoutUpdate PHP Метод

    protected function addLayoutUpdate(\SimpleXMLElement $simpleXml, $area, $module)
    {
        $areaNode = $simpleXml->{$area} ? $simpleXml->{$area} : $simpleXml->addChild($area);
        $layoutNode = $areaNode->layout ? $areaNode->layout : $areaNode->addChild('layout');
        $updatesNode = $layoutNode->updates ? $layoutNode->updates : $layoutNode->addChild('updates');
        $this->removeChildNodeIfNotNull($updatesNode, $module);
        $moduleNode = $updatesNode->addChild($module);
        $moduleNode->addChild('file', $this->configNodes['layout_update_file']);
    }