V3rt3X

Wen i do that it sorts my posts only by day. My friend told me to try with this code:

add_filter('posts_where', 'filter_orderby');
 function filter_orderby( $where = '' ) {
    $where .= "  AND $wpdb->postmeta.meta_key = 'mydate' ORDER BY mydate DESC";
    return where;
}

but it just makes all of my posts dissapear. Do you know what else could i try?