/**
* {@inheritdoc}
*/
public function registerSubscribers(DataGridInterface $dataGrid)
{
$subscribers = $this->loadSubscribers();
if (!is_array($subscribers)) {
throw new UnexpectedTypeException('Listeners needs to be stored in array.');
}
foreach ($subscribers as $subscriber) {
if (!$subscriber instanceof EventSubscriberInterface) {
throw new UnexpectedTypeException(sprintf('"%s" is not instance of Symfony\\Component\\EventDispatcher\\EventSubscriberInterface', $columnType));
}
$dataGrid->addEventSubscriber($subscriber);
}
}
