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I am trying to figure out why wp_set_object terms will update the terms in a given taxonomy but when I set the $terms param to NULL it keeps one of the terms - the one with the lowest ID.

I've altered a plugin for frontend editing of posts - WP User FrontEnd.

Here's my wp_set_object_terms code coming from a set of check boxes in a form:

if( !empty($_POST['wpuf_tax_TAXONOMY']) ):
  $cat_ids = $_POST['wpuf_tax_TAXONOMY'];
  $cat_ids = array_map('intval', $cat_ids);
  $cat_ids = array_unique( $cat_ids );
  wp_set_object_terms( $post_id, $cat_ids, 'TAXONOMY' );
else:
  wp_set_object_terms( $post_id, NULL, 'TAXONOMY' );
endif;

Not sure what to do about this or why it won't delete the terms when none are selected in the form.

Any help is appreciated.

EDIT---------------------------------------------------------------

I have noticed that wp_set_object_terms does add and remove terms as expected. But I need to refresh the page after the form update to see the changes.

I tried a wp_redirect on successful submission but got a "headers already sent" error. Is there a way to reload the page with out having to refresh the page after the from updates? Hope that made sense.

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Redirect before any output. How are you processing your form anyway? – One Trick Pony Sep 28 '11 at 23:10
I just figured out the problem.... I had another function checking if the post had the current term, and it wasn't functioning properly. as soon as I altered the code, everything updated the first time through on the form. Even added all the meta data to the form no problem. Thanx – dkmojo Sep 29 '11 at 19:47
@dkmojo Can you post your solution as an answer? After a day passes you can then accept it as the best answer so that it does not haunt the site as Unanswered. Thanks! – Jared Mar 1 '12 at 3:28

closed as too localized by toscho♦ Jul 16 '12 at 23:28

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1 Answer

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I was passing $ostid instead of $postid into my function. As soon as I used the 'real' post id it solved my issue. Just a typo on my part.

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