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<?php
use Symfony\Components\Form\Form;
use Symfony\Components\Form\FieldGroup;
use Symfony\Components\Form\ChoiceField;
use Symfony\Components\Form\TextField;
use Symfony\Components\Form\CheckboxField;
use Symfony\Components\Form\NumberField;
use Symfony\Components\Form\PasswordField;
use Symfony\Components\Form\DoubleTextField;
use Symfony\Components\Validator\Validator;
use Symfony\Components\Validator\ConstraintValidatorFactory;
use Symfony\Components\Validator\Constraints\Min;
use Symfony\Components\Validator\Constraints\Max;
use Symfony\Components\Validator\Constraints\MinLength;
use Symfony\Components\Validator\Constraints\MaxLength;
use Symfony\Components\Validator\Constraints\AssertType;
use Symfony\Components\Validator\Constraints\Email;
use Symfony\Components\Validator\Constraints\Choice;
use Symfony\Components\Validator\Constraints\Valid;
use Symfony\Components\Validator\Mapping\ClassMetadataFactory;
use Symfony\Components\Validator\Mapping\ClassMetadata;
use Symfony\Components\Validator\Mapping\Loader\LoaderChain;
use Symfony\Components\Validator\Mapping\Loader\StaticMethodLoader;
use Symfony\Components\Validator\Mapping\Loader\XmlFileLoader;
use Symfony\Components\Validator\MessageInterpolator\XliffMessageInterpolator;
use Symfony\Foundation\UniversalClassLoader;
// path pointing to Symfony 2
define('SYMFONY_DIR', __DIR__);
require_once SYMFONY_DIR.'/src/Symfony/Foundation/UniversalClassLoader.php';
class User
{
public $firstName;
public $lastName;
public $email;
public $married = false;
public $age = 3;
public $gender = 'male';
public $address;
public static function loadValidatorMetadata(ClassMetadata $metadata)
{
$metadata->addPropertyConstraint('firstName', new MinLength(2));
$metadata->addPropertyConstraint('lastName', new MinLength(2));
$metadata->addPropertyConstraint('email', new Email());
$metadata->addPropertyConstraint('age', new Min(6));
$metadata->addPropertyConstraint('gender', new Choice(array('choices' => self::getGenders())));
$metadata->addPropertyConstraint('address', new Valid());
}
public static function getGenders()
{
return array('male', 'female');
}
}
class Address
{
public $street;
public $zipCode;
public $city;
public static function loadValidatorMetadata(ClassMetadata $metadata)
{
$metadata->addPropertyConstraint('street', new MinLength(6));
$metadata->addPropertyConstraint('zipCode', new MinLength(4));
$metadata->addPropertyConstraint('zipCode', new MaxLength(5));
$metadata->addPropertyConstraint('zipCode', new AssertType('numeric'));
$metadata->addPropertyConstraint('city', new MinLength(3));
}
}
class UserAdmin
{
public $user;
public $hasAddress;
public $address;
public static function loadValidatorMetadata(ClassMetadata $metadata)
{
$metadata->addPropertyConstraint('user', new Valid());
$metadata->addPropertyConstraint('address', new Valid());
}
public function __construct(User $user)
{
$this->user = $user;
$this->hasAddress = ($this->user->address !== null);
$this->address = $this->hasAddress ? $this->user->address : new Address();
}
public function persist()
{
$this->user->address = $this->hasAddress ? $this->address : null;
// etc
var_dump($this->user);
}
}
\Locale::setDefault('de_AT');
// initialize autoloader
$loader = new UniversalClassLoader();
$loader->registerNamespace('Symfony', SYMFONY_DIR.'/src');
$loader->register();
// initialize validator
$metadataFactory = new ClassMetadataFactory(new LoaderChain(array(
new StaticMethodLoader('loadValidatorMetadata'),
new XmlFileLoader(SYMFONY_DIR.'/src/Symfony/Components/Form/Resources/config/validation.xml'),
)));
$validatorFactory = new ConstraintValidatorFactory();
$messageInterpolator = new XliffMessageInterpolator(SYMFONY_DIR.'/src/Symfony/Components/Validator/Resources/i18n/messages.en.xml');
$validator = new Validator($metadataFactory, $validatorFactory, $messageInterpolator);
// Note: the above code will be taken care of by the Symfony 2 core
// create new business object
$user = new User();
$userAdmin = new UserAdmin($user);
// create form to interact with the business object
$form = new Form('admin', $userAdmin, $validator);
$userGroup = new FieldGroup('user');
$userGroup->add(new TextField('firstName'));
$userGroup->add(new TextField('lastName'));
$userGroup->add(new DoubleTextField('email'));
$userGroup->add(new CheckboxField('married'));
$userGroup->add(new NumberField('age'));
$userGroup->add(new ChoiceField('gender', array('choices' => array_combine(User::getGenders(), User::getGenders()))));
$addressGroup = new FieldGroup('address');
$addressGroup->add(new TextField('street'));
$addressGroup->add(new TextField('zipCode'));
$addressGroup->add(new TextField('city'));
$form->add($userGroup);
$form->add(new CheckboxField('hasAddress'));
$form->add($addressGroup);
// bind POST data to the form
if (isset($_POST['admin']))
{
$form->bind($_POST['admin']);
if ($form->isValid())
{
$userAdmin->persist();
}
}
?>
<form action="#" method="post">
<?php echo $form->renderErrors() ?>
<?php echo $form->render() ?>
<input type="submit" value="Submit" />
</form>
@webmozart
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The validator will most probably be created by the DIC and injected into the controller. When creating a form, you can thus simply refer to the controller property.

I will have a look at your project. Let me know if you find any more limitations or bugs.

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