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Explain how to provide custom form options #6527

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0345790
Explain how to provide custom form options
lewis-spears-flashtalking May 3, 2016
0503805
Fixed option name typo
lewis-spears-flashtalking May 3, 2016
24661b5
Fixed indentation
lewis-spears-flashtalking May 3, 2016
6268f35
Altered the introduction to passing form options
lewis-spears-flashtalking May 3, 2016
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23 changes: 23 additions & 0 deletions book/forms.rst
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Expand Up @@ -1021,6 +1021,29 @@ to the ``form()`` or the ``form_start()`` helper:
a PUT, PATCH or DELETE request. Read the cookbook chapter
":doc:`/cookbook/routing/method_parameters`" for more information.

.. note::

Now that the ``createForm()`` method requires the FQCN, you can no longer pass in *dynamic* ``__construct()`` arguments. This is not to be confused with :ref:`form-as-services`. To get
around this, you will need to create the default options in the form class ``configureOptions()`` method::

use Symfony\Component\OptionsResolver\OptionsResolver;
use Symfony\Component\Form\Extension\Core\Type\PasswordType;
use Symfony\Component\Form\Extension\Core\Type\TextType;

public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder->add('username', TextType::class, array('required' => $options['username_required']));
$builder->add('password', PasswordType::class, array('required' => $options['password_required']));
}

public function configureOptions(OptionsResolver $resolver)
{
$resolver->setDefaults(array(
'username_required' => true,
'password_required' => false,
));
}

.. index::
single: Forms; Creating form classes

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