GeoRSS Support for the location extension of Advanced Custom Fields. Work in progress.

acf-georss.php

<?php
/*
Plugin Name: GeoRSS ACF Extension
Author: Anthony Cole
Author URI: http://anthonycole.me/
Description: Extends ACF Locations extension to allow plotting multiple locations on a map with GeoRSS
Version: 0.5
*/

class GeoRSS_Map {

	public static function init() {
		add_action('query_vars', 'GeoRSS_Map::acf_queryvars');
		add_action('init', 'GeoRSS:Map::index');
	}

	public static function show_georss($posts) {
?>
<?xml version="1.0" encoding="utf-8"?>
<feed xmlns="http://www.w3.org/2005/Atom" 
  xmlns:georss="http://www.georss.org/georss">
  <title><?php bloginfo_rss('title'); ?></title>
  <subtitle><?php bloginfo_rss('title'); ?></subtitle>
  <link href="<?php echo home_url(); ?>"/>
  <updated>2005-12-13T18:30:02Z</updated>
  <author>
    <name><?php bloginfo_rss('title'); ?></name>
    <email><?php bloginfo_rss('admin_email'); ?></email>
  </author>
  <id>urn:uuid:60a76c80-d399-11d9-b93C-0003939e0af6</id>
  <?php foreach( $posts as $post ) : 
  setup_postdata($post); ?>
  <entry>
    <title><?php the_title_rss(); ?></title>
    <link href="http://example.org/2005/09/09/atom01"/>
    <id>urn:uuid:1225c695-cfb8-4ebb-aaaa-80da344efa6a</id>
    <updated>2005-08-17T07:02:32Z</updated>
    <summary><?php the_excerpt_rss(); ?></summary>
    <georss:point><?php self::get_field(); ?></georss:point>
  </entry>
  <?php endforeach; ?>
</feed>
<?php
	}
	
	public static function get_field() {
		// need input from acf here.
	}
	
	public static function acf_queryvars($vars) {
		$vars[] = 'georss';
		return $vars;
	}
	
	public static function acf_init() {
		if( 'true' == get_query_var('georss') ) {
			$args = self::show_georss(get_posts($args));
			exit;
		}
	}
}

GeoRSS_Map::init();