Method display

/**
 * Typical view method for MVC based architecture
 *
 * This function is provide as a default implementation, in most cases
 * you will need to override it in your own controllers.
 *
 * @param   boolean  $cachable   If true, the view output will be cached
 * @param   array    $urlparams  An array of safe url parameters and their variable types, for valid values see {@link InputFilter::clean()}.
 *
 * @return  static  A \JControllerLegacy object to support chaining.
 *
 * @since   3.0
 * @throws  \Exception
 */
public function display($cachable = false, $urlparams = array())
{
    $document = $this->app->getDocument();
    $viewType = $document->getType();
    $viewName = $this->input->get('view', $this->default_view);
    $viewLayout = $this->input->get('layout', 'default', 'string');
    $view = $this->getView($viewName, $viewType, '', array('base_path' => $this->basePath, 'layout' => $viewLayout));
    // Get/Create the model
    if ($model = $this->getModel($viewName, '', array('base_path' => $this->basePath))) {
        // Push the model into the view (as default)
        $view->setModel($model, true);
    }
    $view->document = $document;
    // Display the view
    if ($cachable && $viewType !== 'feed' && Factory::getApplication()->get('caching') >= 1) {
        $option = $this->input->get('option');
        if (\is_array($urlparams)) {
            $this->app = Factory::getApplication();
            if (!empty($this->app->registeredurlparams)) {
                $registeredurlparams = $this->app->registeredurlparams;
            } else {
                $registeredurlparams = new \stdClass();
            }
            foreach ($urlparams as $key => $value) {
                // Add your safe URL parameters with variable type as value {@see InputFilter::clean()}.
                $registeredurlparams->{$key} = $value;
            }
            $this->app->registeredurlparams = $registeredurlparams;
        }
        try {
            /** @var \Joomla\CMS\Cache\Controller\ViewController $cache */
            $cache = Factory::getCache($option, 'view');
            $cache->get($view, 'display');
        } catch (CacheExceptionInterface $exception) {
            $view->display();
        }
    } else {
        $view->display();
    }
    return $this;
}