Problem saving a field to another

You can get the current logged in users username like this:
[php]
$current_user = wp_get_current_user();
$user_name = $current_user->user_login;
[/php]

I am not sure what else informations do you need.

Thank you very much for quick reply, but after this, I can save it in a custom field, but not like a post tag.
Is it possible to save retrieved username like a post tag?

Take a look at wp_set_post_terms() function.

I’ll try to get the code.
Thank you.

It would be good to create a new section on documentation with snippets for no-programmers…
Just only a suggestion…

Sorry, I can’t update post tags from given username.

Try like this:
[php]
function wpufe_update_tags( $post_id ) {
$current_user = wp_get_current_user();
$user_name = $current_user->user_login;

wp_set_post_terms( $post_id, array( $user_name ), ‘post_tag’ );
}

add_action( ‘wpuf_add_post_after_insert’, ‘wpufe_update_tags’ );
add_action( ‘wpuf_edit_post_after_update’, ‘wpufe_update_tags’ );
[/php]

Haven’t tested it, so not sure if it’ll work.