I'm currently writing a theme for a friend who is going to coach photographers. He wants to have a page that lists RSS feeds from all those photographers.
One part of the puzzle is easily solved by using Yahoo! Pipes to combine those feeds, the other part isn't that easy to solve.
WordPress comes with a standard RSS widget, but it's only a widget, not a shortcode. There are a bunch of plugins that either offer a RSS widget or turn feeds items into posts.
What I did is write my own plugin in only 10 lines of actual code, utilizing the shortcode API and the built-in RSS widget.
Save and upload the snippet below to your plugins folder
Activate it in the WP admin
Add the [rsstag] shortcode to your post or page
Add the feed url like this: [rsstag url="http://pepijn.cqhosting.nl/feed/"]
Save!
You can optionally add one or more of show_summary=1, show_date=1 or show_author=1 to add the respective meta-data to every entry.
php
/*
Plugin Name: Wordpress RSS shortcode
Plugin URI: http://pepijn.cqhosting.nl/2010/06/wordpress-rss-widget-in-a-post-page
Description: This plugin fetches an RSS feed as a shortcode
Author: Pepijn de Vos
Version: 1.0
Author URI: http://pepijn.cqhosting.nl
*/
function rsstag($atts) {
$atts = shortcode_atts(array(
'url' => get_bloginfo('rss2_url'),
'show_author' => 0,
'show_date' => 0,
'show_summary' => 0
), $atts);
//var_dump($atts);
wp_widget_rss_output($atts['url'], $atts);
}
add_shortcode('rsstag', 'rsstag');
?>
While researching Quercus today, I ran into some trouble running the new integrated Multi Site feature of Wordpress 3.0(previously a separate project known as Wordpress MU or WPMU for short) on Resin.
Quercus is a PHP implementation written in Java that runs on any Java Servlet Container, including but not limited to Jetty, Tomcat or Resin. I took Resin for it was the easiest to setup and includes Quercus.
Normally one would just use Apache and mod_php, but I also want to run Jython and Clojure projects, so I'm looking for a solution to combine these.
Wordpress MU allows me to run multiple blogs on a single installation(as seen on wordpress.com), which I want to use for hosting websites for my clients.
The problem with WPMU is that to map the different urls to one installation, some tricky mod_rewrite code is required for Apache, but since I'm using Resin here, I'll have to find another solution.
There is a post on the Quercus wiki describing the process of setting up a Multi Site Wordpress installation, but this is for an old version of WPMU(before the merge) and an old version of Resin.
After a good few hours of trying, I got it working with the latest version of Wordpress 3.0, Quercus 4.0.3 and Resin 4.0.7.
Just follow the wiki, except for a few points:
Note that I did not use the pro version, skipped the DNS stuff by using directory instead of subdomains in WP, I also skipped the chown stuff by removing this block from resin.xml:
But this is sub-ideal. Pipes have a huge url, a delay to long for practical use with Twitter, and are unreliable at times.
I searched the API for a solution but found none. The only official format for lists is XML and JSON.
Just by trying anyway, I and Jaap found out that lists do not have an RSS feed, but they do have an Atom feed(which is sort of RSS on steroids)! This can be used in most cases where an RSS feed is required.
The new way:
