TaxiSelect widget disappears after trying to add new term

This is not much to go on.

Any related error messages in the logs, etc?
What related taxonomic / i18n modules are in play?

Is there caching involved here? Do other AHAH functions work on that page?

The reason that I'm asking is that this code is also part of the FileField / ImageField, used by 1000's for sites. The only time that I have seen this fail is when there is a server is down or the page is not saved for many, many hours and Drupal form cache is flushed before the AHAH callback gets used.

To add to sczizzo's post (I work with him)...

So I copied the entire site to our dev server, uninstalled all of the unessential modules (literally 70 or 80!), turned off clean URLs, and restricted a our test content type to our test taxiselect vocabulary. I switched entirely to the Garland theme. Still, the form disappears.

I took a look at our logs and saw this (see attachment). I'm not sure if this helps any.

And per that screenshot, that specifically references this code in the file 'taxiselect.pages.inc':

function taxiselect_add_ahah($parents) {
  module_load_include('inc', 'node', 'node.pages');
  module_load_include('inc', 'taxonomy', 'taxonomy.admin');

  $form_state = array('submitted' => FALSE);
  $form_build_id = $_POST['form_build_id'];
  $form = form_get_cache($form_build_id, $form_state);
  $args = $form['#parameters'];
  $form_id = array_shift($args);  // <-- row 114!
  $form['#post'] = $_POST;
  $form = form_builder($form_id, $form, $form_state);

  $_parents = $parents;
  $parents = explode('][', $parents);
  $target_form = $form;
  while ($key = array_shift($parents)) {
    $target_form = $target_form[$key];
  }
  // Clear the element if no errors found
  if (!form_get_errors()) {
    $target_form['add']['taxiselect']['#value'] = '';
  }
  unset($target_form['#prefix'], $target_form['#suffix']);
  // ahah returns the full element and messages
  $output = theme('status_messages') . drupal_render($target_form);

  drupal_json(array('status' => TRUE, 'data' => $output));
}

Hi Alan,

Any other ideas? Is there any information we can provide you with?

Our Filefield forms are working as expected.

I'm at a loss to explain or replicate this sorry. I'm really not sure how to proceed :(

It appears to us that using taxiselect inside of Panels completely borks the AHAH for taxiselect. If taxiselect is used inside of Panels, taxiselect_add_ahah() does not get the variables it needs by line 119 of taxiselect.pages.inc:

form_build_id : form-d2ee38706048296bb7ee2333ccddb6b5

form : (empty/null)

It seems to be form_get_cache() fails to do its job here. It also appears that no cache_form row exists with the id I get for any taxiselect AHAH inside of panels. So I suspect its a form_set_cache() problem... now I just have to trace that part too, which I don't have time to do right now.

Caching issue :( Nuke as much caching on those panel pages.

I have no plans to further develop this module. This is due to time limitations, internal complexities and very low uptake (<2%).