function theme_views_rss_feed in Views (for Drupal 7) 5

plugin that actually displays an RSS feed

File

./views_rss.module, line 112

Code

function theme_views_rss_feed($view, $nodes, $type) {
  if ($type == 'block') {
    return;
  }
  global $base_url;
  $channel = array(
    // a check_plain isn't required on these because format_rss_channel
    // already does this.
    'title' => views_get_title($view, 'page'),
    'link' => url($view->feed_url ? $view->feed_url : $view->real_url, NULL, NULL, true),
    'description' => $view->description,
  );
  $item_length = variable_get('feed_item_length', 'teaser');
  $namespaces = array(
    'xmlns:dc="http://purl.org/dc/elements/1.1/"',
  );

  // Except for the original being a while and this being a foreach, this is
  // completely cut & pasted from node.module.
  foreach ($nodes as $node) {

    // Load the specified node:
    $item = node_load($node->nid);
    $link = url("node/{$node->nid}", NULL, NULL, 1);
    if ($item_length != 'title') {
      $teaser = $item_length == 'teaser' ? TRUE : FALSE;

      // Filter and prepare node teaser
      if (node_hook($item, 'view')) {
        node_invoke($item, 'view', $teaser, FALSE);
      }
      else {
        $item = node_prepare($item, $teaser);
      }

      // Allow modules to change $node->teaser before viewing.
      node_invoke_nodeapi($item, 'view', $teaser, FALSE);
    }

    // Allow modules to add additional item fields
    $extra = node_invoke_nodeapi($item, 'rss item');
    $extra = array_merge($extra, array(
      array(
        'key' => 'pubDate',
        'value' => date('r', $item->created),
      ),
      array(
        'key' => 'dc:creator',
        'value' => $item->name,
      ),
      array(
        'key' => 'guid',
        'value' => $item->nid . ' at ' . $base_url,
        'attributes' => array(
          'isPermaLink' => 'false',
        ),
      ),
    ));
    foreach ($extra as $element) {
      if ($element['namespace']) {
        $namespaces = array_merge($namespaces, $element['namespace']);
      }
    }

    // Prepare the item description
    switch ($item_length) {
      case 'fulltext':
        $item_text = $item->body;
        break;
      case 'teaser':
        $item_text = $item->teaser;
        if ($item->readmore) {
          $item_text .= '<p>' . l(t('read more'), 'node/' . $item->nid, NULL, NULL, NULL, TRUE) . '</p>';
        }
        break;
      case 'title':
        $item_text = '';
        break;
    }
    $items .= format_rss_item($item->title, $link, $item_text, $extra);
  }
  $channel_defaults = array(
    'version' => '2.0',
    'title' => variable_get('site_name', 'drupal') . ' - ' . variable_get('site_slogan', ''),
    'link' => $base_url,
    'description' => variable_get('site_mission', ''),
    'language' => $GLOBALS['locale'],
  );
  $channel = array_merge($channel_defaults, $channel);
  $output = "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n";
  $output .= "<rss version=\"" . $channel["version"] . "\" xml:base=\"" . $base_url . "\" " . implode(' ', $namespaces) . ">\n";
  $output .= format_rss_channel($channel['title'], $channel['link'], $channel['description'], $items, $channel['language']);
  $output .= "</rss>\n";
  drupal_set_header('Content-Type: text/xml; charset=utf-8');
  print $output;
  module_invoke_all('exit');
  exit;
}