symfony2 using validation groups in form

Question

I have a Entity with a property:

/**
 * @var string $name
 *
 * @AssertNotBlank(groups={"foobar"})
 * @ORMColumn(name="name", type="string", length=225, nullable=false)
 */
private $name;

The Form:

class MyType extends AbstractType
{
    public function buildForm(FormBuilder $builder, array $options)
    {
        $builder->add('name');
    }

    public function getDefaultOptions(array $options)
    {
        return array(
            'data_class' => '...',
            'validation_group' => array('foobar'),
        );
    }

    public function getName()
    {
        ...
    }
}

In the Controller I bind the Request and call $form->isValid()

But how to define the validation_group?

Answer 1

From inside your FormType class you can define the validation groups associated to that type by setting your default options:

public function getDefaultOptions(array $options)
{
    return array(
        'data_class' => 'AcmeMyBundleEntityMyEntity',
        'validation_groups' => array('group1', 'group2'),
    );
}