#lazy_builder callback; replaces placeholder with messages.

Parameters

string|null $type: Limit the messages returned by type. Defaults to NULL, meaning all types. Passed on to \Drupal\Core\Messenger\Messenger::deleteByType(). These values are supported:

• NULL
• 'status'
• 'warning'
• 'error'

Return value

array A renderable array containing the messages.

See also

\Drupal\Core\Messenger\Messenger::deleteByType()

File

core/lib/Drupal/Core/Render/Element/StatusMessages.php, line 88

Class

StatusMessages

Provides a messages element.

Namespace

Drupal\Core\Render\Element

Code

public static function renderMessages($type = NULL) {
  $render = [];
  if (isset($type)) {
    $messages = [
      $type => \Drupal::messenger()->deleteByType($type),
    ];
  }
  else {
    $messages = \Drupal::messenger()->deleteAll();
  }
  if ($messages) {
    // Render the messages.
    $render = [
      '#theme' => 'status_messages',
      '#message_list' => $messages,
      '#status_headings' => [
        'status' => t('Status message'),
        'error' => t('Error message'),
        'warning' => t('Warning message'),
      ],
    ];
  }
  return $render;
}

---