public function open(ModelForm $form, $attributes = [])
{
if ($this->containers) {
throw new \RuntimeException('Prior call to close() is required');
}
if (is_string($attributes)) {
$attributes = $this->parseAttributes($attributes);
}
foreach ($attributes as $attribute => $value) {
$form->setAttribute($attribute, $value);
}
$this->containers[] = $form;
return '<form' . $this->implodeAttributes($form->getAttributes()) . ">\n";
}
public function setUp()
{
$addressFieldSet = new FieldSet('address');
$address = $addressFieldSet->setEntity('Address');
$addressFieldSet->add((new Element\Text('street'))->setLabel('Street')->setAttribute('placeholder', 'Enter street')->setFilters('required|trim'));
$addressFieldSet->add((new Element\Text('city'))->setLabel('City')->setAttribute('placeholder', 'Enter city')->setFilters('required|trim'));
$userFieldSet = new FieldSet('user');
$user = $userFieldSet->setEntity('User');
$user->setAddress($address);
$userFieldSet->add((new Element\Text('firstName'))->setLabel('First name')->setAttribute('placeholder', 'Enter first name')->setFilters('required|trim'));
$userFieldSet->add((new Element\Text('lastName'))->setLabel('Last name')->setAttribute('placeholder', 'Enter last name')->setFilters('required|trim'));
$userFieldSet->add($addressFieldSet);
$form = new Form();
$form->add($userFieldSet);
$this->form = $form;
}