WordPress Search For Custom Fields

function custom_search_query( $query ) {
    $custom_fields = array(
        // put all the meta fields you want to search for here
        "fw_options",        
    );
    $searchterm = $query->query_vars['s'];

    // we have to remove the "s" parameter from the query, because it will prevent the posts from being found
    $query->query_vars['s'] = "";

    if ($searchterm != "") {
        $meta_query = array('relation' => 'OR');
        foreach($custom_fields as $cf) {
            array_push($meta_query, array(
                'key' => $cf,
                'value' => $searchterm,
                'compare' => 'LIKE'
            ));
        }
        $query->set("meta_query", $meta_query);
    };
}
add_filter( "pre_get_posts", "custom_search_query");

Hey there nickkuijpers,

It may just be the way I tried to implement this but it seems that by doing
$query->query_vars['s'] = "";
you lose the ability to test against the post title and content in the search.
I was wondering if you could comment on a way to restore that functionality or if you think it would require a different approach to be used.

Cheers,
Michael