I need to change the validation of some field in a form. The validator is configured via a quite large yml file. I wonder if there is any way to do validation on two fields at once. In my case I have two fields that cannot be both empty. At least one has to be filled.
Unfortunately till now I just could see that the validation are defined on a per-field basis, not on multiple fields together.
The question is: is it possible in the standard yml configurations to perform the aforementioned validation?
thanks!
I suggest you to look at Custom validator, especially Class Constraint Validator.
I won't copy paste the whole code, just the parts which you will have to change.
Extends the Constraint class.
src/Acme/DemoBundle/Validator/Constraints/CheckTwoFields.php
<?php namespace Acme\DemoBundle\Validator\Constraints; use Symfony\Component\Validator\Constraint; /** * @Annotation */ class CheckTwoFields extends Constraint { public $message = 'You must fill the foo or bar field.'; public function validatedBy() { return 'CheckTwoFieldsValidator'; } public function getTargets() { return self::CLASS_CONSTRAINT; } }
Define the validator by extending the ConstraintValidator class, foo and bar are the 2 fields you want to check:
src/Acme/DemoBundle/Validator/Constraints/CheckTwoFieldsValidator.php
namespace Acme\DemoBundle\Validator\Constraints; use Symfony\Component\Validator\Constraint; use Symfony\Component\Validator\ConstraintValidator; class CheckTwoFieldsValidator extends ConstraintValidator { public function validate($protocol, Constraint $constraint) { if ((empty($protocol->getFoo())) && (empty($protocol->getBar()))) { $this->context->addViolationAt('foo', $constraint->message, array(), null); } } }
Use the validator:
src/Acme/DemoBundle/Resources/config/validation.yml
Acme\DemoBundle\Entity\AcmeEntity: constraints: - Acme\DemoBundle\Validator\Constraints\CheckTwoFields: ~
