Image Sitemap with Zend_Navigation - image

Question

I generate a Sitemap using Zend_Navigation and i wanted to add images to this sitemap, now i got no Idea how to get this done, i use following (working) code to generate the sitemap
foreach($sitemapItems as $item)
{
$newSite = new Zend_Navigation_Page_Uri();
$newSite->uri = 'http://' . $_SERVER['HTTP_HOST'] . $item->getSpeakingUrl();
$newSite->lastmod = $item->getUpdatedAt();
$newSite->changefreq = 'weekly';
$this->_navigation->addPage($newSite);
}
$this->view->navigation($this->_navigation);
$this->view->navigation()->sitemap()->setFormatOutput(true);
The Output is as follows:
<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
<url>
<loc>http://test.dev/pictures/site-28.html</loc>
<lastmod>2010-03-11T17:47:30+01:00</lastmod>
<changefreq>weekly</changefreq>
</url>
....
I need the following Output inside the Url part
<image:image>
<image:loc>http://example.com/image.jpg</image:loc>
</image:image>
i tried to just set
$newSite->image = URI
but it didnt work also i tried to add custom attribute via
$newSite->__set('image', array('loc' => URI));
Does anyone know if what i want is even possible ? i cant find anything in the docs or web...
Thanks for your time,
Dominik

Answer 1

Oki so first what you need to do is extend Zend_Navigation_Page_Uri and add you're image var to it smth like below :
class Mylib_NavPageUriImage extends Zend_Navigation_Page_Uri
{
protected $_image = null;
public function setImage($image)
{
if (null !== $image && !is_string($image)) {
require_once 'Zend/Navigation/Exception.php';
throw new Zend_Navigation_Exception(
'Invalid argument: $image must be a string or null');
}
$this->_image = $image;
return $this;
}
public function getImage()
{
return $this->_image;
}
public function toArray()
{
return array_merge(
parent::toArray(),
array(
'image' => $this->getImage()
));
}
}
Add this class to library/Mylib/NavPageUriImage.php.
To make it usable you need to register the namespace ( i like to register my namespaces at bootstrap but it can be done from app.ini too ) so in you're bootstrap class add the following :
function _initNamespace()
{
$autoloader = Zend_Loader_Autoloader::getInstance();
$autoloader->registerNamespace('Mylib_');
}
Then in you're controller you can now use :
$newSite = new Mylib_NavPageUriImage();
$newSite->uri = 'http://' . $_SERVER['HTTP_HOST'] . $item->getSpeakingUrl();
$newSite->lastmod = $item->getUpdatedAt();
$newSite->changefreq = 'weekly';
$newSite->image = 'some image';
THE FOLLOWING IS NOT RECOMENDED , YOU NEED TO EXTEND YOU'RE OWN NAVIGATION HELPER AND USE THAT ( i just don't have the time to play with it now ) ALLSO ADD YOU'RE OWN imageValidator
And then in library/zend/view/helper/navigation/sitemap.php add the following lines ( under the add priority element if statement , mine ends at 443 so i added this at 444 ) :
// add 'image' element if a valid image is set in page
if (isset($page->image)) {
$image = $page->image;
$imgDom = $dom->createElementNS(self::SITEMAP_NS, 'image:image');
$imgDom->appendChild($dom->createElementNS(self::SITEMAP_NS, 'image:loc', $image));
$urlNode->appendChild($imgDom);
}