Digg RSS

This add-on makes it very easy to get access to Digg's custom RSS tags known as Digg RSS. Data includes the submitter, the submitter's avatar, the number of diggs, number of comments, and the Digg category. There is a screencast available that shows how this Add-on was created: Creating the Digg SimplePie Add-on.

1. Create a new file called simplepie_digg.inc and place it in the same directory as your simplepie.inc file.
2. On the SimplePie-enabled page you want to use this extension on, make sure you include it in the same way that you include simplepie.inc.

<?php
/**
 * SimplePie Add-on for Digg
 *
 * Copyright (c) 2004-2007, Ryan Parman and Geoffrey Sneddon
 * All rights reserved. License matches the current SimplePie license.
 */
 
if (!defined('SIMPLEPIE_NAMESPACE_DIGG'))
{
	define('SIMPLEPIE_NAMESPACE_DIGG', 'http://digg.com/docs/diggrss/');
}
 
class SimplePie_Item_Digg extends SimplePie_Item
{
	// New method
	function get_digg_count()
	{
		$data = $this->get_item_tags(SIMPLEPIE_NAMESPACE_DIGG, 'diggCount');
		return $data[0]['data'];
	}
 
	// New method
	function get_submitter_username()
	{
		$data = $this->get_item_tags(SIMPLEPIE_NAMESPACE_DIGG, 'submitter');
		$data = $data[0]['child'][SIMPLEPIE_NAMESPACE_DIGG]['username'];
		return $data[0]['data'];
	}
 
	// New method
	function get_submitter_image()
	{
		$data = $this->get_item_tags(SIMPLEPIE_NAMESPACE_DIGG, 'submitter');
		$data = $data[0]['child'][SIMPLEPIE_NAMESPACE_DIGG]['userimage'];
		return $data[0]['data'];
	}
 
	// New method
	function get_comment_count()
	{
		$data = $this->get_item_tags(SIMPLEPIE_NAMESPACE_DIGG, 'commentCount');
		return $data[0]['data'];
	}
 
	// Overloading an existing method.
	function get_categories()
	{
		$categories = array();
 
		foreach ((array) $this->get_item_tags(SIMPLEPIE_NAMESPACE_DIGG, 'category') as $category)
		{
			$categories[] =& new $this->feed->category_class($this->sanitize($category['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null);
		}
		foreach ((array) $this->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'category') as $category)
		{
			$term = null;
			$scheme = null;
			$label = null;
			if (isset($category['attribs']['']['term']))
			{
				$term = $this->sanitize($category['attribs']['']['term'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if (isset($category['attribs']['']['scheme']))
			{
				$scheme = $this->sanitize($category['attribs']['']['scheme'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			if (isset($category['attribs']['']['label']))
			{
				$label = $this->sanitize($category['attribs']['']['label'], SIMPLEPIE_CONSTRUCT_TEXT);
			}
			$categories[] =& new $this->feed->category_class($term, $scheme, $label);
		}
		foreach ((array) $this->get_item_tags('', 'category') as $category)
		{
			$categories[] =& new $this->feed->category_class($this->sanitize($category['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null);
		}
		foreach ((array) $this->get_item_tags(SIMPLEPIE_NAMESPACE_DC_11, 'subject') as $category)
		{
			$categories[] =& new $this->feed->category_class($this->sanitize($category['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null);
		}
		foreach ((array) $this->get_item_tags(SIMPLEPIE_NAMESPACE_DC_10, 'subject') as $category)
		{
			$categories[] =& new $this->feed->category_class($this->sanitize($category['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null);
		}
 
		if (!empty($categories))
		{
			return SimplePie_Misc::array_unique($categories);
		}
		else
		{
			return null;
		}
	}
}
 
?>

• get_digg_count()
  This returns the number of Diggs the article has received.
• get_submitter_username()
  The username of the person who submitted the article.
• get_submitter_image()
  The avatar of the person who submitted the article.
• get_comment_count()
  The number of comments this article has received.
• get_categories()
  Same as the normal get_categories(), except that we've added the Digg category as the first item returned. Returns a SimplePie_Category object.

<?php
require_once('simplepie.inc');
require_once('simplepie_digg.inc');
 
$feed = new SimplePie();
$feed->set_feed_url('http://digg.com/rss/index.xml');
$feed->set_item_class('SimplePie_Item_Digg');
$feed->init();
$feed->handle_content_type();
 
?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
        "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">	
<head>
	<title>Sample Page to test SimplePie add-on for Digg.com</title>
</head>
 
<body>
	<h1><a href="<?php echo $feed->get_permalink(); ?>"><?php echo $feed->get_title(); ?></a></h1>
 
	<?php foreach($feed->get_items() as $item): ?>
 
	<h3><img src="<?php echo $item->get_submitter_image(); ?>" alt="<?php echo $item->get_submitter_username(); ?>" title="<?php echo $item->get_submitter_username(); ?>" width="16" height="16" /> <a href="<?php echo $item->get_permalink(); ?>"><?php echo $item->get_title(); ?></a></h3>
	<p><?php echo $item->get_description(); ?></p>
	<p><small>Diggs: <?php echo $item->get_digg_count(); ?> | Submitted by: <?php echo $item->get_submitter_username(); ?> | Comments: <?php echo $item->get_comment_count(); ?> | Category: <?php $category = $item->get_category(0); echo $category->get_label(); ?> | <?php echo $item->get_date('l, F jS Y, g:i a'); ?></small></p>
	<hr />
 
	<?php endforeach; ?>
 
</body>
</html>