Limit by custom field/meta value


We want to limit the plugin to show only posts that have the custom field "rss" set to 1.

To do this, we have modified the funcion index_post in class.postindexeradmin.php and cron.postindexerrebuild.php

I have added :

$rssval = get_post_meta($post_id,'rss',true);						restore_current_blog();
if ($rssval == '1') {
// Add the post record to the network tables
$this->model->index_post( $post );

But it only seems to work when i create tthe post, not when i edit it...

If anyone has a tip i would be really greatful!