/**
* {@inheritdoc}
*/
public function toArray()
{
return ['field' => $this->field->getId()] + parent::toArray();
}
/**
* Init the column.
*
* @param Entity $entity
* @param string $id
* @param string|\Closure $accessor
*/
public function __construct(Entity $entity, $id, $accessor = null)
{
parent::__construct($entity, $id);
$this->accessor = $accessor;
}