Sort by postmeta on when searching

Problem was that I had a plugin installed that deals with the searches, it’s called Better Search.

function query_1($query){
    $query .= ",wp_postmeta.meta_value as total_saless ";
    return $query;
}
add_filter( 'bsearch_posts_match_field', 'query_1' );

function query_2($query){
    $query .= "AND wp_postmeta.meta_key='total_sales' ";
    return $query;
}
add_filter( 'bsearch_posts_where', 'query_2' );

function query_3($query){
    $query = " CAST(total_saless AS INTEGER) > 99999 DESC, score DESC ";
    return $query;
}
add_filter( 'bsearch_posts_orderby', 'query_3' );

All I had to do was to hook into it.