public static function TokenFieldRender::preRender in Token 8

Pre-render callback for field output used with tokens.

File

src/TokenFieldRender.php, line 20

Class

TokenFieldRender

Namespace

Drupal\token

Code

public static function preRender($elements) {

  // Remove the field theme hook, attachments, and JavaScript states.
  unset($elements['#theme']);
  unset($elements['#states']);
  unset($elements['#attached']);

  // Prevent multi-value fields from appearing smooshed together by appending
  // a join suffix to all but the last value.
  $deltas = Element::getVisibleChildren($elements);
  $count = count($deltas);
  if ($count > 1) {
    $join = isset($elements['#token_options']['join']) ? $elements['#token_options']['join'] : ", ";
    foreach ($deltas as $index => $delta) {

      // Do not add a suffix to the last item.
      if ($index < $count - 1) {
        $elements[$delta] += [
          '#suffix' => $join,
        ];
      }
    }
  }
  return $elements;
}