gistfile1.php

<?php

_refresh_and_assign_country_to_node($nid, $country, $region) {
  if (empty($nid) || empty($country) || empty($region)) {
    return FALSE;
  }

  // Some pseudo-constants for config
  $VOCABULARY_COUNTRIES = 0;

  $node = node_load($nid);
  if (!is_object($node)) {
    return FALSE;
  }

  // Get the country
  $countries = taxonomy_get_term_by_name($country);
  $country = array(
    'vid' => $VOCABULARY_COUNTRIES,
    'name' => check_plain($country),
  );
  if (!empty($countries)) {
    $saved_countries = array();
    foreach ($countries as $tid => $term) {
      if ($VOCABULARY_COUNTRIES == $term->vid) {
        $saved_countries[] = $term;
      }
    }

    if (!empty($saved_countries) && is_array($saved_countries)) {
      $country += (array) array_shift($saved_countries); // get first country
    }
  }

  // Get the region
  $region = array(
    'vid' => $VOCABULARY_COUNTRIES,
    'name' => check_plain($region),
  );
  if (isset($country['tid']) && !empty($country['tid'])) {
    $regions = taxonomy_get_parents($country->tid);
    if (!empty($regions)) {
      $saved_regions = array();
      foreach ($regions as $tid => $term) {
        if ($VOCABULARY_COUNTRIES == $term->vid &&
          drupal_strtolower($region) == drupal_strtolower($region)) {
          $saved_regions[] = $term;
        }
      }

      if (!empty($saved_regions) && is_array($saved_regions)) {
        $region += (array) array_shift($saved_regions); // get first region
      }
    }
  }

  // Save the terms
  $return = taxonomy_save_term($region);
  if ($return != SAVED_UPDATED || $return != SAVED_NEW) {
    watchdog('membership_country', 'Unable to save the region');
    return FALSE;
  }
  $country['parent'] = $region->tid;
  $return = taxonomy_save_term($country);
  if ($return != SAVED_UPDATED || $return != SAVED_NEW) {
    watchdog('membership_country', 'Unable to save the country');
    return FALSE;
  }

  // Assign it to the node
  taxonomy_node_save($node, array((object) $country));
  return TRUE;
}