Ajouter les étiquettes aux autres posts types

//add tag support to pages
function tags_support_all() {
register_taxonomy_for_object_type('post_tag', 'page');
}
//ensure all tags are included in queries
function tags_support_query($wp_query) {
if ($wp_query->get('tag')) $wp_query->set('post_type', 'any');
}

//tag hooks
add_action('init', 'tags_support_all');
add_action('pre_get_posts', 'tags_support_query');