/**
* Builds and returns an XML sitemap.
* @uses date in standard db form, W3C Datetime (YYYY-MM-DD)
*
* @param string/array $items Database table we work with or array of data already
* @param string $linksURL URL to append slug links to (e.g., http://.$_SERVER['HTTP_HOST'].WWW_DIR.Controller)
* @return XML sitemap
*/
public function create($items, $linksURL = NULL)
{
// try determining this server's address if URL is not provided
if (!isset($linksURL)) {
$linksURL = 'http://' . $_SERVER['SERVER_NAME'] . WWW_DIR;
}
// add a trailing slash to URL
$linksURL = Fari_File::addTrailingSlash($linksURL);
// start dom string
$DOMDocument = new DOMDocument('1.0', 'UTF-8');
// <urlset> root
$rootNode = $DOMDocument->appendChild($DOMDocument->createElementNS('http://www.sitemaps.org/schemas/sitemap/0.9', 'urlset'));
// get items from the database if we are not passing a formed array already
if (!is_array($items)) {
// last modification date and page priority won't be provided
if (!isset($this->lastModificationDate) && !isset($this->pagePriority)) {
$columns = $this->linkSlug;
// last modification date won't be provided
} elseif (!isset($this->lastModificationDate)) {
$columns = $this->linkSlug . ', ' . $this->pagePriority;
// page priority won't be provided
} elseif (!isset($this->pagePriority)) {
$columns = $this->linkSlug . ', ' . $this->lastModificationDate;
// we will be provided with all params
} else {
$columns = $this->linkSlug . ',' . $this->lastModificationDate . ',' . $this->pagePriority;
}
// the actual call to the db
$items = Fari_Db::select($items, $columns);
}
// set default element text, page priority
$pagePriorityText = self::LINK_PRIORITY;
// set default element text, generate last modification date as now
$lastModificationText = date('Y-m-d');
// traverse through all records
foreach ($items as $item) {
// <urlset><url>
$URLNode = $rootNode->appendChild($DOMDocument->createElement('url'));
// <urlset><url><loc> link address
$URLNode->appendChild($DOMDocument->createElement('loc', $linksURL . $item[$this->linkSlug]));
// <urlset><url><lastmod> last modification date of the page
if (isset($this->lastModificationDate)) {
$lastModificationText = $item[$this->lastModificationDate];
// convert UNIX timestamp to well formed date if present
if (strlen($lastModificationText) == 10 && $lastModificationText > 1000000000) {
$lastModificationText = date('Y-m-d', $lastModificationText);
}
}
$URLNode->appendChild($DOMDocument->createElement('lastmod', $lastModificationText));
// <urlset><url><priority> page priority
if (isset($this->pagePriority)) {
$pagePriorityText = $item[$this->pagePriority];
}
$URLNode->appendChild($DOMDocument->createElement('priority', $pagePriorityText));
}
// generate XML and return
$DOMDocument->formatOutput = TRUE;
return $DOMDocument->saveXML();
}