/** * * {@inheritdoc} * * @see \Core\Html\AbstractHtml::setId() */ public function setId($id) { if (in_array($id, self::$used_ids)) { throw new FormDesignerException(sprintf('The form id "%s" is already in use. Please set a different/unique form id.', $id)); } self::$used_ids[] = $id; $this->html->setId($id); return $this; }