/**
* Returns a pages change frequency calculated by pages age and number of
* versions. Google expects always, hourly, daily, weekly, monthly, yearly
* or never as values.
*
* @see http://support.google.com/webmasters/bin/answer.py?hl=en&answer=183668&topic=8476&ctx=topic
*
* @return SS_Datetime
*/
public function getChangeFrequency()
{
if ($freq = GoogleSitemap::get_frequency_for_class($this->owner->class)) {
return $freq;
}
$date = date('Y-m-d H:i:s');
$created = new SS_Datetime();
$created->value = $this->owner->Created ? $this->owner->Created : $date;
$now = new SS_Datetime();
$now->value = $date;
$versions = $this->owner->Version ? $this->owner->Version : 1;
$timediff = $now->format('U') - $created->format('U');
// Check how many revisions have been made over the lifetime of the
// Page for a rough estimate of it's changing frequency.
$period = $timediff / ($versions + 1);
if ($period > 60 * 60 * 24 * 365) {
$freq = 'yearly';
} elseif ($period > 60 * 60 * 24 * 30) {
$freq = 'monthly';
} elseif ($period > 60 * 60 * 24 * 7) {
$freq = 'weekly';
} elseif ($period > 60 * 60 * 24) {
$freq = 'daily';
} elseif ($period > 60 * 60) {
$freq = 'hourly';
} else {
$freq = 'always';
}
return $freq;
}
public function getChangeFrequency()
{
$date = date('Y-m-d H:i:s');
$created = new SS_Datetime();
$created->value = $this->owner->Created ? $this->owner->Created : $date;
$now = new SS_Datetime();
$now->value = $date;
$versions = $this->owner->Version ? $this->owner->Version : 1;
$timediff = $now->format('U') - $created->format('U');
// Check how many revisions have been made over the lifetime of the
// Page for a rough estimate of it's changing frequency.
$period = $timediff / ($versions + 1);
if ($period > 60 * 60 * 24 * 365) {
$freq = GoogleSiteMapGenerator::CHANGE_FREQ_YEARLY;
} elseif ($period > 60 * 60 * 24 * 30) {
$freq = GoogleSiteMapGenerator::CHANGE_FREQ_MONTHLY;
} elseif ($period > 60 * 60 * 24 * 7) {
$freq = GoogleSiteMapGenerator::CHANGE_FREQ_WEEKLY;
} elseif ($period > 60 * 60 * 24) {
$freq = GoogleSiteMapGenerator::CHANGE_FREQ_DAILY;
} elseif ($period > 60 * 60) {
$freq = GoogleSiteMapGenerator::CHANGE_FREQ_HOURLY;
} else {
$freq = GoogleSiteMapGenerator::CHANGE_FREQ_ALWAYS;
}
return $freq;
}
public function Items()
{
$filter = '';
$bt = defined('DB::USE_ANSI_SQL') ? "\"" : "`";
if (self::$use_show_in_search) {
$filter = "{$bt}ShowInSearch{$bt} = 1";
}
$this->Pages = Versioned::get_by_stage('SiteTree', 'Live', $filter);
$newPages = new DataObjectSet();
if ($this->Pages) {
foreach ($this->Pages as $page) {
// Only include pages from this host and pages which are not an instance of ErrorPage
// We prefix $_SERVER['HTTP_HOST'] with 'http://' so that parse_url to help parse_url identify the host name component; we could use another protocol (like
// 'ftp://' as the prefix and the code would work the same.
if (parse_url($page->AbsoluteLink(), PHP_URL_HOST) == parse_url('http://' . $_SERVER['HTTP_HOST'], PHP_URL_HOST) && !$page instanceof ErrorPage) {
// If the page has been set to 0 priority, we set a flag so it won't be included
if ($page->canView() && (!isset($page->Priority) || $page->Priority > 0)) {
// The one field that isn't easy to deal with in the template is
// Change frequency, so we set that here.
$properties = $page->toMap();
$created = new SS_Datetime();
$created->value = $properties['Created'];
$now = new SS_Datetime();
$now->value = date('Y-m-d H:i:s');
$versions = $properties['Version'];
$timediff = $now->format('U') - $created->format('U');
// Check how many revisions have been made over the lifetime of the
// Page for a rough estimate of it's changing frequency.
$period = $timediff / ($versions + 1);
if ($period > 60 * 60 * 24 * 365) {
// > 1 year
$page->ChangeFreq = 'yearly';
} elseif ($period > 60 * 60 * 24 * 30) {
// > ~1 month
$page->ChangeFreq = 'monthly';
} elseif ($period > 60 * 60 * 24 * 7) {
// > 1 week
$page->ChangeFreq = 'weekly';
} elseif ($period > 60 * 60 * 24) {
// > 1 day
$page->ChangeFreq = 'daily';
} elseif ($period > 60 * 60) {
// > 1 hour
$page->ChangeFreq = 'hourly';
} else {
// < 1 hour
$page->ChangeFreq = 'always';
}
$newPages->push($page);
}
}
}
return $newPages;
}
}
public function process()
{
if (!$this->tempFile) {
throw new Exception("Temporary sitemap file has not been set");
}
if (!file_exists($this->tempFile)) {
throw new Exception("Temporary file {$this->tempFile} has been deleted!");
}
$remainingChildren = $this->pagesToProcess;
// if there's no more, we're done!
if (!count($remainingChildren)) {
$this->completeJob();
$this->isComplete = true;
return;
}
// lets process our first item - note that we take it off the list of things left to do
$ID = array_shift($remainingChildren);
// get the page
$page = Versioned::get_by_stage('Page', 'Live', '"SiteTree_Live"."ID" = ' . $ID);
if (!$page || !$page->Count()) {
$this->addMessage("Page ID #{$ID} could not be found, skipping");
} else {
$page = $page->First();
}
if ($page && $page instanceof Page && !$page instanceof ErrorPage) {
if ($page->canView() && (!isset($page->Priority) || $page->Priority > 0)) {
$created = $page->dbObject('Created');
$now = new SS_Datetime();
$now->value = date('Y-m-d H:i:s');
$versions = $page->Version;
$timediff = $now->format('U') - $created->format('U');
// Check how many revisions have been made over the lifetime of the
// Page for a rough estimate of it's changing frequency.
$period = $timediff / ($versions + 1);
if ($period > 60 * 60 * 24 * 365) {
// > 1 year
$page->ChangeFreq = 'yearly';
} elseif ($period > 60 * 60 * 24 * 30) {
// > ~1 month
$page->ChangeFreq = 'monthly';
} elseif ($period > 60 * 60 * 24 * 7) {
// > 1 week
$page->ChangeFreq = 'weekly';
} elseif ($period > 60 * 60 * 24) {
// > 1 day
$page->ChangeFreq = 'daily';
} elseif ($period > 60 * 60) {
// > 1 hour
$page->ChangeFreq = 'hourly';
} else {
// < 1 hour
$page->ChangeFreq = 'always';
}
// do the generation of the file in a temporary location
$content = $page->renderWith('SitemapEntry');
$fp = fopen($this->tempFile, "a");
if (!$fp) {
throw new Exception("Could not open {$this->tempFile} for writing");
}
fputs($fp, $content, strlen($content));
fclose($fp);
}
}
// and now we store the new list of remaining children
$this->pagesToProcess = $remainingChildren;
$this->currentStep++;
if (!count($remainingChildren)) {
$this->completeJob();
$this->isComplete = true;
return;
}
}
public function process()
{
if (!$this->tempFile) {
throw new Exception("Temporary sitemap file has not been set");
}
if (!file_exists($this->tempFile)) {
throw new Exception("Temporary file {$this->tempFile} has been deleted!");
}
$remainingChildren = $this->toProcess;
// if there's no more, we're done!
if (!count($remainingChildren)) {
$this->completeJob();
$this->isComplete = true;
return;
}
// lets process our first item - note that we take it off the list of things left to do
$ID = array_shift($remainingChildren);
$post = DataList::create('MicroPost')->byID($ID);
if (!$post || !$post->exists()) {
$this->addMessage("Post ID #{$ID} could not be found, skipping");
}
if ($post) {
$created = $post->dbObject('Created');
$now = new SS_Datetime();
$now->value = date('Y-m-d H:i:s');
$timediff = $now->format('U') - $created->format('U');
$period = $timediff;
if ($period > 60 * 60 * 24 * 7) {
// > 1 week
$post->ChangeFreq = 'weekly';
} else {
$post->ChangeFreq = 'daily';
}
// do the generation of the file in a temporary location
$content = $post->renderWith('SitemapEntry');
$fp = fopen($this->tempFile, "a");
if (!$fp) {
throw new Exception("Could not open {$this->tempFile} for writing");
}
fputs($fp, $content, strlen($content));
fclose($fp);
}
// and now we store the new list of remaining children
$this->toProcess = $remainingChildren;
$this->currentStep++;
if (!count($remainingChildren)) {
$this->completeJob();
$this->isComplete = true;
return;
}
}
