autofill from taxonomy term fields I'm trying to connect a field of a taxonomy term to a field in a content type, something like this:

Auto-Fill from on content type to another

I tried this on a node and it's working, but now I have some problems with the taxonomy term, is for this part?

// load node by nid
$node = node_load($nid);


Do I have to specify here the taxonomy? but I really don't know what to put in...

the field in content type is "field_descrizione_01" with empty field "field_udm"
the field with the data in the taxonomy terms is "field_udm_ti" 

I've made this code (based on the link one):

/**
* Implements hook_field_widget_form_alter().
*/

function collegamento_field_widget_form_alter(&amp;$element, &amp;$form_state, $context) {

  if(isset($element['#field_name']) &amp;&amp; $element['#field_name'] == 'field_descrizione_01') {
    $element['#ajax'] = array(
      'callback' =&gt; 'collegamento_auto_fill_callback',
    );
  }
}

function collegamento_auto_fill_callback(&amp;$form, &amp;$form_state) {

  $commands = array();

  if(isset($form_state['values']['field_descrizione_01'])) {
    // get selected item/node from dropdown list
    $nid = $form_state['values']['field_descrizione_01']['und'][0]['nid'];

    // load node by nid
    $node = node_load($nid);

    if($node) {

      if(isset($node-&gt;field_udm_ti['und'])) {
        // fill text field 
        $commands[] = ajax_command_invoke('#edit-field-udm', 'val', array($node-&gt;field_udm_ti['und'][0]['value']));  
      }        



    }
  }

  return array('#type' =&gt; 'ajax', '#commands' =&gt; $commands);
}
You need to load a taxonomy term using taxonomy_term_load

This should get you on the right track.