Want to share a few things I've added for a magazine site I'm building:
First of all, I think "priority" and "changefreq" are fairly important if you're going to have a sitemap at all. This post has some info on Google's guidelines:
http://www.eduki.com...-are-important/What I decided to do was quickly add two global fields to PW so I can set these values manually in each page:
-sitemap_priority
-changefreq
And in the code:
public function sitemapListPage($page) {
$entry = "";
$default_priority = "0.5";
$default_changefreq = "monthly";
include $this->fuel('config')->paths->templates . "sitemap_module_defaults.inc";
if ($page->sitemap_ignore == 0 || $page->path == '/') { // $page->path part added so that it ignores hiding the homepage, else you wouldn't have ANY pages returned
$modified = date ('Y-m-d', $page->modified);
$entry = "\n <url>\n";
$entry .= " <loc>{$page->httpUrl}</loc>\n";
$entry .= " <lastmod>{$modified}</lastmod>\n";
if(!empty($page->sitemap_priority)) {
$entry .= " <priority>{$page->sitemap_priority}</priority>\n";
} else {
$entry .= " <priority>{$default_priority}</priority>\n";
}
if(!empty($page->changefreq)) {
$entry .= " <changefreq>{$page->changefreq}</changefreq>\n";
} else {
$entry .= " <changefreq>{$default_changefreq}</changefreq>\n";
}
$entry .= " </url>";
if($page->numChildren) {
foreach($page->children as $child) $entry .= $this->sitemapListPage($child);
}
}
return $entry;
}
The sitemap_module_defaults.inc file in the templates dir is so I can set some values on the fly without doing it manually:
<?php
switch($page->template->name) {
case "blog_post":
case "blog_topic":
case "blog_topic_type":
$default_priority = "0.7";
$default_changefreq = "daily";
break;
}
?>
That's done and works fine for me.
Something I found frustrating with the sitemap module was that I couldn't add virtual pages I made. For example, if there's a page with urlSegments with some kind of page manipulation they won't show up on the sitemap, for obvious reasons. So what I did was add this method to the module:
public function sitemapListVirtualPage($httpUrl, $modified = NULL, $sitemap_priority = "0.5", $changefreq = "monthly") {
$entry = "";
$modified = date ('Y-m-d', $modified);
$entry = "\n <url>\n";
$entry .= " <loc>{$httpUrl}</loc>\n";
if($modified) {
$entry .= " <lastmod>{$modified}</lastmod>\n";
}
if($sitemap_priority) {
$entry .= " <priority>" . (float)$sitemap_priority . "</priority>\n";
}
if($changefreq) {
$entry .= " <changefreq>{$changefreq}</changefreq>\n";
}
$entry .= " </url>";
return $entry;
}
And added this include to the init method before the output is saved to cache:
public function init() {
// Intercept a request for a root URL ending in sitemap.xml and output
if (strpos($_SERVER['REQUEST_URI'], wire('config')->urls->root . 'sitemap.xml') !== FALSE) {
// Check for the cached sitemap, else generate and cache a fresh sitemap
$cache = wire('modules')->get("MarkupCache");
if(!$output = $cache->get("MarkupSitemapXML", 3600)) {
$output = "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n";
$output .= '<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">';
$output .= $this->sitemapListPage(wire('pages')->get("/"));
include $this->fuel('config')->paths->templates . "sitemap_module_virtual.inc";
$output .= "\n</urlset>";
$cache->save($output);
}
header("Content-Type: text/xml");
echo $output;
exit;
}
}
And in my sitemap_module_virtual.inc file I did this:
<?php
foreach(wire('pages')->find("template=blog_topic|blog_topic_type") as $real_page) {
$output .= $this->sitemapListVirtualPage("http://" . $this->fuel('config')->httpHost . $real_page->url . "archives/", wire('pages')->get("template=blog_post,sort=-created")->modified, "0.4", "daily");
}
foreach(wire('pages')->find("template=blog_topic|blog_topic_type") as $real_page) {
$output .= $this->sitemapListVirtualPage("http://" . $this->fuel('config')->httpHost . $real_page->url . "rss/", wire('pages')->get("template=blog_post,sort=-created")->modified, "0.4", "daily");
}
?>
In this part, I have manipulated /archive/ and /rss/ sub-pages for each blog_topic and sub-topic(or blog_topic_type) using urlSegments. I wanted these to show up on the sitemap, even though they're probably not super important.
Usually I wouldn't bother doing this if it was just these kinds of pages. But what if you have countless articles with manipulated urls that don't show in the sitemap? This is perfect example of why I did this for the future as well.
I've been trying to understand how to do these things for a while, so I hope it helps someone out.
EDIT: I have a download with all of my changes if anyone's interested in taking a look:
http://clintonskakun...efreq-and-more/
Edited by ClintonSkakun, 19 August 2012 - 02:29 PM.
