I'm trying to get data stored in a nested form but when calling $builder->getData()
I'm always getting NULL.
Does anyone knows what how one should get the data inside a nested form?
Here's the ParentFormType.php:
class ParentFormType extends AbstractType
{
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder->add('files', 'collection', array(
'type' => new FileType(),
'allow_add' => true,
'allow_delete' => true,
'prototype' => true,
'by_reference' => false
);
}
}
FileType.php
class FileType extends AbstractType
{
public function buildForm(FormBuilderInterface $builder, array $options)
{
// Each one of bellow calls returns NULL
print_r($builder->getData());
print_r($builder->getForm()->getData());
die();
$builder->add('file', 'file', array(
'required' => false,
'file_path' => 'file',
'label' => 'Select a file to be uploaded',
'constraints' => array(
new File(array(
'maxSize' => '1024k',
))
))
);
}
public function setDefaultOptions( \Symfony\Component\OptionsResolver\OptionsResolverInterface $resolver )
{
return $resolver->setDefaults( array() );
}
public function getName()
{
return 'FileType';
}
}
Thanks!
The form is built before data is bound (that is, the bound data is not available at the time that
AbstractType::buildForm()
is called)If you want to dynamically build your form based on the bound data, you'll need to use events
http://symfony.com/doc/2.3/cookbook/form/dynamic_form_modification.html
You need to use the FormEvents::POST_SET_DATA to get the form object :
It's a (very annoying..) known issue:
https://github.com/symfony/symfony/issues/5694
Since it works fine for simple form but not for compound form. From documentation (see http://symfony.com/doc/master/form/dynamic_form_modification.html), you must do: