forms - 在事件监听器中访问表单选项的干净方式

Question

如何以干净的方式访问从事件监听器传递给 buildForm() 的 $options？请参阅以下代码示例:

class UserType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder->addEventListener(FormEvents::PRE_SET_DATA, [$this, 'preSetDataListener']);
    }

    public function preSetDataListener(FormEvent $event)
    {
        // how would I access $options from buildFrom here?
    }

Answer 1

$event->getForm()->getConfig()->getOptions()