Dynamic validation groups in Symfony2

Question

I need to implement form validation depending on submitted data. While data object's invoice property is true then validation_groups array should contain not only 'add' validation but also 'company'.

I've found "Groups based on Submitted Data" chapter in Symfony Docs https://github.com/symfony/symfony-docs/blob/master/book/forms.rst.

The problem is that :

public function getDefaultOptions(array $options)
{
    return array(
        'data_class' => 'Strict\PublicBundle\Entity\Booking',
        'validation_groups' => function(FormInterface $form)
        {
              return array('booking');
        },
    );
}

throws this error:

Warning: Illegal offset type in /var/www/vendor/symfony/src/Symfony/Component/Validator/GraphWalker.php line 101 500 Internal Server Error - ErrorException

Any ideas what can be wrong?

Martin · Accepted Answer · 2012-02-14 14:30:43Z

3

According to this pull request using callbacks for validation_groups will be posible in Symfony 2.1 (not yet released, currently master branch).

Are you sure you are using master branch? If you are using current stable (2.0.x), it has no support for Groups based on Submitted Data, you have to use arrays only. See proper documentation on http://symfony.com/doc/current/book/forms.html#book-forms-validation-groups.

answered Feb 14, 2012 at 14:30

Martin

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brendanrichards · Accepted Answer · 2012-05-23 23:41:49Z

I've got an alternative: If you're able to determine the condition prior to binding the form, you can simply override the default list of validation groups when you create the form.

In my case I've got an order object in session that gets updated across multiple form pages. Order can be "Delivery" or "Pickup" and if delivery is selected on a previous screen I need to validate address details on this screen:

if ($order->getOrderType() == "Delivery")
    {
        $validationGroups = array('step3', 'delivery');
    }
    else
    {
        $validationGroups = array('step3');
    }

    $formType = new Form\Order3Type();
    $form = $this->createForm($formType, $order, array("validation_groups" => $validationGroups));
    $form->bindRequest($request);

If your condition is in the form and not already in session, you could always just pull the value straight from the request object.

Aistis · Accepted Answer · 2016-07-12 11:55:55Z

1

// MyFormType.php
public function configureOptions(OptionsResolver $resolver)
{
    $resolver->setDefaults([
        'data_class' => 'Strict\PublicBundle\Entity\Booking',
        'validation_groups' => function (FormInterface $form) {
            $data = $form->getData();

            $groups = ['booking'];

            if ($data->invoice) {
                $groups[] = 'company';
            }

            return $groups;
        },
    ]);
}

answered Jul 12, 2016 at 11:55

Aistis

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