Generates and prints an RSS feed.

Generates an RSS feed from an array of node IDs, and prints it with an HTTP header, with Content Type set to RSS/XML.

Parameters

$nids: An array of node IDs (nid). Defaults to FALSE so empty feeds can be generated with passing an empty array, if no items are to be added to the feed.

$channel: An associative array containing title, link, description and other keys, to be parsed by format_rss_channel() and format_xml_elements(). A list of channel elements can be found at the RSS 2.0 Specification. The link should be an absolute URL.

4 calls to node_feed()

blog_feed_last in modules/blog/blog.pages.inc

Menu callback; displays an RSS feed containing recent blog entries of all users.

blog_feed_user in modules/blog/blog.pages.inc

Menu callback; displays an RSS feed containing recent blog entries of a given user.

NodeFeedTestCase::testNodeFeedExtraChannelElements in modules/node/node.test

Ensures that node_feed() accepts and prints extra channel elements.

taxonomy_term_feed in modules/taxonomy/taxonomy.pages.inc

Generate the content feed for a taxonomy term.

1 string reference to 'node_feed'

node_menu in modules/node/node.module

Implements hook_menu().

File

modules/node/node.module, line 2575

Code

function node_feed ($nids = FALSE, $channel = array()) {
 global $base_url, $language_content;
 if ($nids === FALSE) {
 $nids = db_select ('node', 'n')->fields ('n', array(
 'nid',
 'created',
 ))
 ->condition ('n.promote', 1)
 ->condition ('n.status', 1)
 ->orderBy ('n.created', 'DESC')
 ->range (0, variable_get ('feed_default_items', 10))
 ->addTag ('node_access')
 ->execute ()
 ->fetchCol ();
 }
 $item_length = variable_get ('feed_item_length', 'fulltext');
 $namespaces = array(
 'xmlns:dc' => 'http://purl.org/dc/elements/1.1/',
 );
 // Load all nodes to be rendered.
 $nodes = node_load_multiple ($nids);
 $items = '';
 foreach ($nodes as $node) {
 $item_text = '';
 $node->link = url ("node/{$node->nid}", array(
 'absolute' => TRUE,
 ));
 $node->rss_namespaces = array();
 $account = user_load ($node->uid);
 $node->rss_elements = array(
 array(
 'key' => 'pubDate',
 'value' => gmdate ('r', $node->created),
 ),
 array(
 'key' => 'dc:creator',
 'value' => format_username ($account),
 ),
 array(
 'key' => 'guid',
 'value' => $node->nid . ' at ' . $base_url,
 'attributes' => array(
 'isPermaLink' => 'false',
 ),
 ),
 );
 // The node gets built and modules add to or modify $node->rss_elements
 // and $node->rss_namespaces.
 $build = node_view ($node, 'rss');
 unset($build['#theme']);
 if (!empty($node->rss_namespaces)) {
 $namespaces = array_merge ($namespaces, $node->rss_namespaces);
 }
 if ($item_length != 'title') {
 // We render node contents and force links to be last.
 $build['links']['#weight'] = 1000;
 $item_text .= drupal_render ($build);
 }
 $items .= format_rss_item ($node->title , $node->link, $item_text, $node->rss_elements);
 }
 $channel_defaults = array(
 'version' => '2.0',
 'title' => variable_get ('site_name', 'Drupal'),
 'link' => $base_url,
 'description' => variable_get ('feed_description', ''),
 'language' => $language_content->language ,
 );
 $channel_extras = array_diff_key ($channel, $channel_defaults);
 $channel = array_merge ($channel_defaults, $channel);
 $output = "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n";
 $output .= "<rss version=\"" . $channel["version"] . "\" xml:base=\"" . $base_url . "\" " . drupal_attributes ($namespaces) . ">\n";
 $output .= format_rss_channel ($channel['title'], $channel['link'], $channel['description'], $items, $channel['language'], $channel_extras);
 $output .= "</rss>\n";
 drupal_add_http_header ('Content-Type', 'application/rss+xml; charset=utf-8');
 print $output;
}

---