Qfyilyi

I'm having trouble updating post categories from within admin-post.php.

I'm using a form submission to pass data to admin-post.php, to which I've added an action that, among other things, changes the category of a draft post.

All components of this work fine with the exception of updating the post category. The form submission is being correctly handled, the post_ID is correctly passed through, and the rest of my action is running fine - but for some reason the categories do not update after wp_set_post_categories() or wp_set_object_terms() is run.

$rpost_id = 3132;

$rpost_categories = array(2,5);



// This approach has no effect:

wp_set_post_categories( $rpost_id , $rpost_categories );



//this approach also has no effect:

wp_set_object_terms( $rpost_id , $rpost_categories, 'category');

When running these functions in admin-post.php, or otherwise outside the loop, do I need additional calls to save the changes, maybe via insert_post()? Why isn't the category actually changing?