Webform prebuilt (prefilled) option list with nested taxonomy tree (1 language) Webform prebuilt (prefilled) option list with node titles

prebuilt-option-list.module.php

/**
* Implementation of hook_webform_select_options_info().
* See webform/webform_hooks.php for further information on this hook in the Webform API.
*/
function the_aim_custom_webform_select_options_info() {
  $items = array();
  $items['terms'] = array(
    'title' => t('Taxonomy terms'),
    'options callback' => '_options_terms'
  );
  return $items;
}

/**
 * Webform options callback.
 */
function _options_terms(){
 $nested = taxonomy_get_nested_tree(2, 2);
 
 foreach ($nested as $item) {
   $options[$item->tid] = '' . $item->name; 
   
   if (isset($item->children)) {
     foreach ($item->children as $child) {
       $options[$child->tid] = '-- ' . $child->name;
     }
   }
 }
   
  return $options;

}

/**
 * Get nested tree.
 */
function taxonomy_get_nested_tree($vid_or_terms = array(), $max_depth = NULL, $parent = 0, $parents_index = array(), $depth = 0) {
  if (!is_array($vid_or_terms)) {
    $vid_or_terms = taxonomy_get_tree($vid_or_terms);
  }
  foreach ($vid_or_terms as $term) {
    foreach ($term->parents as $term_parent) {
      if ($term_parent == $parent) {
        $return[$term->tid] = $term;
      }
      else {
        $parents_index[$term_parent][$term->tid] = $term;
      }
    }
  }
  foreach ($return as &$term) {
    if (isset($parents_index[$term->tid]) && (is_null($max_depth) || $depth < $max_depth)) {
      $term->children = taxonomy_get_nested_tree($parents_index[$term->tid], $max_depth, $term->tid, $parents_index, $depth + 1);
    }
  }
  return $return;
}

///////////////////////////////////////////////////////////////
//----------------------------------------------------
//--- PREFILLED OPTION LIST NODE TITLES WEBFORM ------
//----------------------------------------------------
/**
* Implementation of hook_webform_select_options_info().
* See webform/webform_hooks.php for further information on this hook in the Webform API.
*/
function jobs_webform_select_options_info() {
  $items = array();
  $items['jobs'] = array(
    'title' => t('Jobs'),
    'options callback' => '_jobs_options'
  );
  return $items;
}

/**
 * Webform options callback.
 */
function _jobs_options(){
 $query = db_select('node', 'n')->extend('PagerDefault')
      ->condition('type', JOBS_CT_NAME, '=')
      ->condition('status', (int) TRUE, '=')
      ->fields('n', array('nid'))
      ->limit(variable_get('jobs_overview_block_limit', 12))
      ->orderBy('created', 'desc');

  // check if there should be filtered by language
  if (module_exists('i18n_node')) {
    global $language;
    $query->condition('language', $language->language, '=');
  }

  $results = $query->execute();

  if($results){
    $nids = array();
    foreach ($results as $result) {
      $nids[] = $result->nid;
    }

    $nodes = node_load_multiple($nids);

    foreach($nodes as $key => $value){
      $options[$key] = $value->title;
    }

    return $options;
  }
  
  return;
}