Form default values is not shown - forms

Question

The problem as it is. I'm trying to set defalut form values, and there's no way i can achieve this.
Page layout
{% extends bundle ~ "Bundle::reg.html.twig" %}
{% form_theme regForm 'AcmeBundle:Form:order_type_fields.html.twig' %}
{% block content %}
<form action="{{ path('reg') }}" {{ form_enctype(regForm) }} method="POST">
<div>
{{ form_widget( regForm.firstname )}}
</div>
{{ form_rest( regForm )}}
<input type="submit>
</form>
{% endblock %}
fields layout
{% block text_widget %}
{% spaceless %}
<label>{{label}}</label>
<input type="text" {{ block('widget_attributes') }} value="{{ value }}">
{% endspaceless %}
{% endblock text_widget %}
Controller
$user = new User();
$regForm = $this->get('form.factory')->create(new RegForm(), $user);
return $this->render("FrontendBundle:Order:type.html.twig", array(
'regForm' => $regForm->createView(),
);
Form
class RegForm extends AbstractType
{
public function buildForm( FormBuilder $builder, array $options ){
$builder->add( 'firstname', 'text', array( 'label' => ' ', 'data' => 'Enter your name here' ) );
}
public function getName()
{
return 'reg';
}
}
I've already tried to set default field data in many ways:
in my controller by defining firstname field (
$user->setFirstname('Enter your name here');
).
In form builder by using setData method (
$builder->add( 'firstname', 'text', array( 'label' => ' ' ) )->setData(array('firstname' => 'Enter your name here'));
Or just
$builder->setData(array('firstname' => 'Enter your name here'));
All other form stuff work's just fine. For example, i can set label 'FIRSTNAME' without any problems. So, what am i missing?
UPD: After first answer i decided to ask a direct question:
Why doesn't work default value for this, while label works just fine:
$builder->add('firstname', 'text', array('label' => 'name', 'data' => 'Andrew'));
?
Maybe some mistakes in twig templates?

Answer 1

Have you tried this in your Form Type:
$builder
->add('firstname','hidden', array(
'attr' => array(
'value' => 'Enter your name here',
),
))
It seems to me, though, that you want to use a placeholder (HTML5) instead:
$builder
->add('firstname','hidden', array(
'attr' => array(
'placeholder' => 'Enter your name here',
),
))

Answer 2

In your controller, set the data on the $user object before creating the form
$user = new User();
$user->setFirstname('Default name');
$regForm = $this->get('form.factory')->create(new RegForm(), $user);
BTW you might want to use the placeholder attribute on the input:
<input placeholder="Enter your name here">
You can do this by adding the 'attr' option on the form builder:
$builder->add('firstname', 'text', array(
'attr' => array('placeholder' => 'Enter your name here'),
));