function _metatag_importer_convert_data in Metatag 7

Converts a meta tag's name and value from Nodewords to Metatag format.

Parameters

string $name: Meta tag name.

string $value: Meta tag value in Nodewords format.

Return value

array The two arguments returned after being converted.

1 call to _metatag_importer_convert_data()

_metatag_importer_migrate in metatag_importer/metatag_importer.nodewords.inc

Batch API callback to convert Nodewords data to the Metatag module.

File

metatag_importer/metatag_importer.nodewords.inc, line 479

Convert data from Nodewords to Metatag.

Code

function _metatag_importer_convert_data($name, $value) {

  // Initial simplification of simple values.
  if (is_array($value) && isset($value['value']) && count($value) === 1 && empty($value['value'])) {
    $value = FALSE;
  }

  // Reformat the meta tag data, and possibly name.
  switch ($name) {

    // The Dublin Core date value was stored as three separarate strings.
    case 'dcterms.date':

      // Skip this value if it doesn't contain an array of three values.
      if (!is_array($value) || empty($value['month']) || empty($value['day']) || empty($value['year'])) {
        $value = FALSE;
      }
      else {
        $date = mktime(0, 0, 0, $value['month'], $value['day'], $value['year']);
        $value = date('Y-m-d\\TH:iP', $date);
      }
      break;

    // The location meta tag gets renamed and converted to a semi-colon
    // -separated string.
    case 'location':

      // Catch empty values.
      if (!is_array($value) || empty($value['latitutde']) || empty($value['longitude'])) {
        $value = FALSE;
      }
      else {
        $name = 'geo.position';
        $value = implode(';', $value);
      }
      break;

    // These values always seem to be wrong, just use the Metatag defaults.
    case 'og:type':
      $value = FALSE;
      break;

    // Nodewords handle the title tag differently.
    case 'page_title':
      $name = 'title';

      // Remove two options that are no longer used.
      unset($value['append']);
      unset($value['divider']);
      break;

    // A bug in Nodewords resulted in lots of junk data for this meta tag.
    case 'revisit-after':
      if (isset($value['value']) && intval($value['value']) === 1) {
        $value = FALSE;
      }
      break;

    // Robots needs some extra processing.
    case 'robots':

      // The value didn't exist or it was set to use the defaults.
      if (!is_array($value) || empty($value['value']) || !empty($value['use_default'])) {
        $value = FALSE;
      }
      else {
        $robot_data = array();

        // Convert each value to display the name if it is "on" and 0 if it is
        // off.
        $found = FALSE;
        foreach ($value['value'] as $robot_key => $robot_val) {

          // Ignore junk values.
          if ($robot_key == 'value') {
            continue;
          }
          elseif (!empty($robot_val)) {
            $robot_data[$robot_key] = $robot_key;
            $found = TRUE;
          }
        }

        // Catch empty values.
        if (empty($robot_data)) {
          $value = FALSE;
        }
        else {
          $value = array(
            'value' => $robot_data,
          );
        }
      }
      break;

    // This meta tag was renamed.
    case 'shorturl':
      $name = 'shortlink';
      break;

    // Everything else should be ok.
    default:
  }

  // A final tidy-up.
  if (is_array($value)) {
    foreach ($value as $key => $val) {
      $value[$key] = trim($val);
    }
    $value = array_filter($value);
  }
  return array(
    $name,
    $value,
  );
}