Symfony2表单删除实体数据

Question

This questions is NOT about how to embed an entity that is simple and straightforward my question is about an abnormality I am seeing and can't reconcile.

I have an Entity (Contact) I have an "Email" relation on this and want to have the ability to embed Emails in my create new method.

So I do the usual embed steps: 1) Add my collection to my form (contactType.php)

->add('emails', 'collection', array(
       'type' => new EmailType()
      ))

2) In the Controller I add a new empty Email entity and set that as my default data for my form

$entity = new Contact();
$email = new Email();
$entity->addEmail($email);
$form->createForm(new ContactType(), $entity);

This is where the issue occurs, going into "createForm" my $entity has a collection called Emails, coming out the $form is a blank ContactType, no Email attached to it... it's as if the defaultData is just being ignored.

If you have seen this or have any idea why this would happen I would love some input.

Answer 1

We have modified our getter to return an Associative Array and this seems to break the Form builder, The following breaks the Form Builder:

 public function getContacts()
{
    $array = new ArrayCollection();
    $property = (is_array($this->contacts)) ? $this->contacts : $array;

    foreach($property as $entity)
    {
        $array[$entity->getType()->getName()] = $entity;
    }

    return $array;
}

the basic getter is just

return $this->contacts; 

Which works, it seems ArrayCollection() isn't a simple Associative Array as we assumed it could be.