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<?php
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// $Id: xmlsitemap.php,v 1.2 2007/05/06 22:06:54 darrenoh Exp $
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/**
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* @addtogroup hooks
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* @{
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*/
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/**
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* Define additional links to add to the site map.
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*
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* This hook allows modules to add additional links to the site map. Links
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* may be associated with nodes, terms, or users, as shown in the example.
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*
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* @param $type:
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* If set, a string specifying the type of additional links to return.
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* - nid:
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* Links associated with nodes
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* - tid:
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* Links associated with terms
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* - uid:
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* Links associated with users
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* - xml:
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* An XML site map (for including site maps from other modules)
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* @param $excludes:
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* If set, an array of criteria for excluding links.
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* @return
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* If $type is xml, return an XML site map. Otherwise, return an array of
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* links or an empty array. Each link should be an array with the
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* following keys:
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* - nid, tid, or uid:
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* ID to associate with this link (if $type is set)
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* - #loc:
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* The URL of the page
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* - #lastmod:
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* Timestamp of last modification
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* - #changefreq:
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* Number of seconds between changes
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* - #priority:
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* A number between 1.0 and 0.0 indicating the link's priority
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*/
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function hook_xmlsitemap($type = NULL, $excludes = array()) {
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$additional = array();
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switch ($type) {
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case 'node':
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// Add pages created by the node paging module.
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foreach (node_get_types() as $type => $name) {
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$node_types[$type] = db_escape_string($type);
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}
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$excludes = array_merge($excludes, array_diff($node_types, variable_get('paging_node_types_enabled', array())));
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if (module_exists('comment')) {
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$result = db_query("
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SELECT p.pages, n.nid, n.type, n.promote, s.comment_count, n.changed, x.previously_changed, s.last_comment_timestamp, x.previous_comment, x.priority_override, u.dst AS alias
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FROM {node} n
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INNER JOIN {paging} p
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ON n.nid = p.nid
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LEFT JOIN {node_comment_statistics} s
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ON n.nid = s.nid
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LEFT JOIN {xmlsitemap} x
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ON n.nid = x.nid
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LEFT JOIN {url_alias} u
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ON x.pid = u.pid
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WHERE n.status > 0
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AND (x.priority_override >= 0 OR x.priority_override IS NULL)
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AND n.type NOT IN ('". implode("', '", $excludes) ."')
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");
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$maxcomments = db_result(db_query('SELECT MAX(comment_count) FROM {node_comment_statistics}'));
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}
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else {
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$result = db_query("
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SELECT p.pages, n.nid, n.type, n.promote, n.changed, x.previously_changed, x.priority_override, u.dst AS alias
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FROM {node} n
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INNER JOIN {paging} p
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ON n.nid = p.nid
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LEFT JOIN {xmlsitemap} x
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ON n.nid = x.nid
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LEFT JOIN {url_alias} u
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ON x.pid = u.pid
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WHERE n.status > 0
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AND (x.priority_override >= 0 OR x.priority_override IS NULL)
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AND n.type NOT IN ('". implode("', '", $excludes) ."')
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");
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$maxcomments = 0;
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}
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while ($node = db_fetch_object($result)) {
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$pri = xmlsitemap_node_priority($node, $maxcomments);
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if ($pri < 0) {
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continue;
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}
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$age = time() - $node->changed;
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if (!empty($node->previously_changed)) {
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$interval = $node->changed - $node->previously_changed;
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}
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else {
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$interval = 0;
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}
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for ($count = 1; $count < $node->pages; ++ $count) {
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$entry = array(
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'nid' => $node->nid,
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'#loc' => xmlsitemap_url('node/'. $node->nid, $node->alias, array('query' => "page=0,$count", 'absolute' => TRUE)),
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'#lastmod' => $node->changed,
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'#changefreq' => max($age, $interval),
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'#priority' => $pri,
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);
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$additional[] = $entry;
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}
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}
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break;
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case 'term':
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case 'user':
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break;
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case 'xml':
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$additional = example_sitemap();
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break;
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default:
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// Add arbitrary additional links.
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$result = db_query('SELECT x.*, u.dst AS alias FROM {xmlsitemap_additional} x LEFT JOIN {url_alias} u ON x.pid = u.pid');
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while ($link = db_fetch_object($result)) {
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$age = time() - $link->last_changed;
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if (!empty($link->previously_changed)) {
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$interval = $link->last_changed - $link->previously_changed;
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}
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else {
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$interval = 0;
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}
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$entry = array(
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'#loc' => xmlsitemap_url($link->path, $link->alias, NULL, NULL, TRUE),
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'#lastmod' => $link->last_changed,
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'#changefreq' => max($age, $interval),
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'#priority' => $link->priority,
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);
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$additional[] = $entry;
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}
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}
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return $additional;
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}
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/**
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* @} End of "addtogroup hooks".
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*/
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