function Rss::render

Overrides StylePluginBase::render

File

core/modules/views/src/Plugin/views/style/Rss.php, line 99

Class

Rss

Default style plugin to render an RSS feed.

Namespace

Code

public function render() {
    if (empty($this->view->rowPlugin)) {
        trigger_error('Drupal\\views\\Plugin\\views\\style\\Rss: Missing row plugin', E_WARNING);
        return [];
    }
    $rows = [];
    // This will be filled in by the row plugin and is used later on in the
    // theming output.
    $this->namespaces = [
        'xmlns:dc' => 'http://purl.org/dc/elements/1.1/',
    ];
    // Fetch any additional elements for the channel and merge in their
    // namespaces.
    $this->channel_elements = $this->getChannelElements();
    foreach ($this->channel_elements as $element) {
        if (isset($element['namespace'])) {
            $this->namespaces = array_merge($this->namespaces, $element['namespace']);
        }
    }
    foreach ($this->view->result as $row_index => $row) {
        $this->view->row_index = $row_index;
        $rows[] = $this->view->rowPlugin
            ->render($row);
    }
    $build = [
        '#theme' => $this->themeFunctions(),
        '#view' => $this->view,
        '#options' => $this->options,
        '#rows' => $rows,
    ];
    unset($this->view->row_index);
    return $build;
}