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MINOR Manually merged deletion of GoogleSitemap class from 2.3, the move into googlesitemaps module wasnt detected by svn merge. See r66175
git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/trunk@66519 467b73ca-7a2a-4603-9d3b-597d59a354a9
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Ingo Schommer
parent
aa7b5f4ee3
commit
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<?php
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/**
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* Initial implementation of Sitemap support.
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* GoogleSitemap should handle requests to 'sitemap.xml'
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* the other two classes are used to render the sitemap.
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*
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* You can notify ("ping") Google about a changed sitemap
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* automatically whenever a new page is published or unpublished.
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* By default, Google is not notified, and will pick up your new
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* sitemap whenever the GoogleBot visits your website.
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*
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* Enabling notification of Google after every publish (in your _config.php):
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* <example
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* GoogleSitemap::enable_google_notificaton();
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* </example>
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*
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* @see http://www.google.com/support/webmasters/bin/answer.py?hl=en&answer=34609
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*
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* @package sapphire
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* @subpackage misc
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*/
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class GoogleSitemap extends Controller {
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/**
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* @var boolean
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*/
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protected static $enabled = true;
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/**
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* @var DataObjectSet
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*/
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protected $Pages;
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/**
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* @var boolean
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*/
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protected static $google_notification_enabled = false;
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public function Items() {
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$this->Pages = Versioned::get_by_stage('SiteTree', 'Live');
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$newPages = new DataObjectSet();
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foreach($this->Pages as $page) {
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// Only include pages from this host and pages which are not an instance of ErrorPage
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if(parse_url($page->AbsoluteLink(), PHP_URL_HOST) == $_SERVER['HTTP_HOST'] && !($page instanceof ErrorPage)) {
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// If the page has been set to 0 priority, we set a flag so it won't be included
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if(!isset($page->Priority) || $page->Priority > 0) {
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// The one field that isn't easy to deal with in the template is
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// Change frequency, so we set that here.
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$properties = $page->toMap();
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$created = new SSDatetime($properties['Created']);
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$now = new SSDatetime();
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$versions = $properties['Version'];
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$timediff = $now->format('U') - $created->format('U');
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// Check how many revisions have been made over the lifetime of the
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// Page for a rough estimate of it's changing frequency.
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$period = $timediff / ($versions + 1);
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if($period > 60*60*24*365) { // > 1 year
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$page->ChangeFreq='yearly';
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} else if($period > 60*60*24*30) { // > ~1 month
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$page->ChangeFreq='monthly';
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} else if($period > 60*60*24*7) { // > 1 week
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$page->ChangeFreq='weekly';
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} else if($period > 60*60*24) { // > 1 day
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$page->ChangeFreq='daily';
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} else if($period > 60*60) { // > 1 hour
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$page->ChangeFreq='hourly';
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} else { // < 1 hour
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$page->ChangeFreq='always';
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}
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$newPages->push($page);
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}
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}
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}
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return $newPages;
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}
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/**
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* Notifies Google about changes to your sitemap.
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* Triggered automatically on every publish/unpublish of a page.
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* This behaviour is disabled by default, enable with:
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* GoogleSitemap::enable_google_notificaton();
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*
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* If the site is in "dev-mode", no ping will be sent regardless wether
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* the Google notification is enabled.
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*
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* @return string Response text
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*/
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static function ping() {
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if(!self::$enabled) return false;
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//Don't ping if the site has disabled it, or if the site is in dev mode
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if(!GoogleSitemap::$google_notification_enabled || Director::isDev())
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return;
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$location = urlencode(Director::absoluteBaseURL() . '/sitemap.xml');
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$response = HTTP::sendRequest("www.google.com", "/webmasters/sitemaps/ping",
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"sitemap=" . $location);
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return $response;
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}
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/**
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* Enable pings to google.com whenever sitemap changes.
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*/
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public static function enable_google_notification() {
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self::$google_notification_enabled = true;
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}
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/**
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* Disables pings to google when the sitemap changes.
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*/
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public static function disable_google_notification() {
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self::$google_notification_enabled = false;
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}
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function index($url) {
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if(self::$enabled) {
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// We need to override the default content-type
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ContentNegotiator::disable();
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header('Content-type: application/xml; charset="utf-8"');
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// But we want to still render.
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return array();
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} else {
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return new HTTPResponse('Not allowed', 405);
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}
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}
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public static function enable() {
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self::$enabled = true;
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}
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public static function disable() {
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self::$enabled = false;
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}
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}
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/**
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* @package sapphire
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* @subpackage misc
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*/
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class GoogleSitemapDecorator extends SiteTreeDecorator {
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function extraStatics() {
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return array(
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'db' => array(
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"Priority" => "Float",
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)
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);
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}
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function updateCMSFields(&$fields) {
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$pagePriorities = array(
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'' => _t('SiteTree.PRIORITYAUTOSET','Auto-set based on page depth'),
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'-1' => _t('SiteTree.PRIORITYNOTINDEXED', "Not indexed"), // We set this to -ve one because a blank value implies auto-generation of Priority
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'1.0' => '1 - ' . _t('SiteTree.PRIORITYMOSTIMPORTANT', "Most important"),
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'0.9' => '2',
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'0.8' => '3',
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'0.7' => '4',
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'0.6' => '5',
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'0.5' => '6',
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'0.4' => '7',
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'0.3' => '8',
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'0.2' => '9',
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'0.1' => '10 - ' . _t('SiteTree.PRIORITYLEASTIMPORTANT', "Least important")
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);
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$tabset = $fields->findOrMakeTab('Root.Content');
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$tabset->push(
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$addTab = new Tab(
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'GoogleSitemap',
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_t('SiteTree.TABGOOGLESITEMAP', 'Google Sitemap'),
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new LiteralField(
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"GoogleSitemapIntro",
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"<p>" .
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sprintf(
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_t(
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'SiteTree.METANOTEPRIORITY',
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"Manually specify a Google Sitemaps priority for this page (%s)"
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),
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'<a href="https://www.google.com/webmasters/tools/docs/en/protocol.html#prioritydef">?</a>'
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) .
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"</p>"
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),
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new DropdownField("Priority", $this->owner->fieldLabel('Priority'), $pagePriorities)
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)
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);
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}
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function updateFieldLabels(&$labels) {
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parent::updateFieldLabels($labels);
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$labels['Priority'] = _t('SiteTree.METAPAGEPRIO', "Page Priority");
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}
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function onAfterPublish() {
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GoogleSiteMap::ping();
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}
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function onAfterUnpublish() {
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GoogleSiteMap::ping();
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}
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/**
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* The default value of the priority field depends on the depth of the page in
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* the site tree, so it must be calculated dynamically.
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*/
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function getPriority() {
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if(!$this->owner->getField('Priority')) {
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$parentStack = $this->owner->parentStack();
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$numParents = is_array($parentStack) ? count($parentStack) - 1: 0;
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return max(0.1, 1.0 - ($numParents / 10));
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} else if($this->owner->getField('Priority') == -1) {
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return 0;
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} else {
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return $this->owner->getField('Priority');
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}
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}
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}
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Object::add_extension('SiteTree', 'GoogleSitemapDecorator');
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?>
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