Filter Geo Mashup to include 'inherit' status when querying for 'attachment' posts

gistfile1.php

<?php
/**
 * Filter geo mashup 'where' clause to insert 'inherit' as a valid status when attachments are being queried
 *
 * By default geo mashup locations queries (i.e. posts queried inside the map) include the 'attachment' post type
 * along with posts when post_type=all BUT it only checks for post_status=publish, so attachments are never part
 * of the returned results. 
 * 
 * This function filters the 'where' clause of the locations query to add 'inherit' as a valid post status when
 * attachments are a valid post type. It won't do anything if attachments aren't already part of the query and
 * posts are never 'inherit' status anyway so it should be safe. 
 * 
 * NOTE: As of Geo Mashup 1.8.3 this hack isn't enough! We also need to edit GeoMashupQuery::generate_object_html()
 * to insert 'inherit' as a valid status. The plugin seems to have a list of all possible statuses at that point because it
 * already knows which posts it wants to show, so we just need to add inherit to the list.) 
 */
function sarah_filter_geo_mashup_locations_where($where) {

  // Only filter if it's exactly what we expect Fetching attachments that are published (STUPID)
  if (!strpos($where, "post_status = 'publish'") OR !strpos($where, "o.post_type IN ('post', 'page', 'attachment')"))
    return $where;

  // Add inherit
  $where = str_replace("post_status = 'publish'", "post_status in( 'publish', 'inherit')", $where);

  return $where;
}
add_filter( 'geo_mashup_locations_where', 'sarah_filter_geo_mashup_locations_where');