小编Sim*_*ard的帖子

我有一个由6个字段组成的Location对象.其中一些字段是可选的.

所以我有一个LocationSelectType,它根据位置,PRE_SET_DATA和PRE_SUBMIT事件填充字段.这工作正常.

但是在PRE_SUBMIT上,我还想根据用户输入的数据创建Location对象.这似乎有效,但最后会触发错误:*transformationFailure"复合形式在提交时需要数组或NULL."*

class LocationSelectType extends AbstractType {

public $em;
private $router;
private $options;

public function __construct(EntityManager $em,Router $router)
{
    $this->em = $em;
    $this->router = $router;
}

/**
 * @param FormBuilderInterface $builder
 * @param array $options
 */
public function buildForm(FormBuilderInterface $builder, array $options)
{
    $em = $this->em; 

    $builder   
        ->add('country','choice',array(
            'choices'=>$this->em->getRepository('MyWorldBundle:Country')->findCountryList();,
            'required'=>false,
            'mapped'=>false,
            'empty_value'=>'Votre pays',
            'attr'=>array('class'=>'geo-select geo-select-country geo-select-ajax','data-geo-level'=>'country','data-icon'=>'globe','data-ajax-url'=>$options['ajax_url'],'style'=>"width:100%"),

            ))
        ->add('region','choice',array(
            'choices'=>array(), //populate on events
            'required'=>false,
            'mapped'=>false,
            'empty_value'=>'Votre région',
            'attr'=>array('class'=>'geo-select geo-select-region geo-select-ajax hide','data-geo-level'=>'region','data-icon'=>'globe','data-ajax-url'=>$options['ajax_url'],'style'=>"width:100%"),

            ))
        ->add('departement','choice',array(
            'choices'=>array(), //populate on events
            'required'=>false,
            'mapped'=>false,
            'empty_value'=>'Votre …