Symfony2 : Override Validator of a Bundle - symfony

Question

I'm using OhDateExtraValidatorBundle, and because my Pull Request hasn't been accepted yet I'll need to override it locally.
I read the documentation but couldn't make it work for a validator constraint.
Here is what I did :
Created a new Bundle (so I can override more than one extern bundle), called MyDateExtraValidatorBundle
Added the getParent() method :
public function getParent()
{
return 'OhDateExtraValidatorBundle';
}
Wrote my modification in the same path than the original bundle :
namespace MYVENDOR\MyDateExtraValidatorBundle\Validator\Constraints;
use Oh\DateExtraValidatorBundle\Validator\Constraints\DateExtraValidator as ConstraintValidator;
class DateExtraValidator extends ConstraintValidator
{
public function validate($value, Constraint $constraint)
{
parent::validate($value, Constraint $constraint);
if (null === $value || '' === $value){
return;
}
if(is_object($value) && method_exists($value, '__toString')) {
$value = (string) $value;
}
if (!$dateTime->getTimestamp())
{
$this->context->addViolation($constraint->invalidMessage);
return;
}
}
}
But it's never loaded.
I also tried using directly the name of my bundle in the entity (with the custom validator) class, but doesn't work either.
use MYVENDOR\MyDateExtraValidatorBundle\Validator\Constraints as OhAssert;
=>
The annotation "#MYVENDOR\MyDateExtraValidatorBundle\Validator\Constraints\DateExtra" [...] does not exist, or could not be auto-loaded.
What's the right way to do ?

Answer 1

Bundle inheritance does not currently allow overriding validation metadata.
There is also a pending issue on this subject.
As a workaround, I would create my own validator.
Acme/FooBundle/Validator/Constraints/MyDateExtra.php
Here, you just extend the base metadata, to keep the messages and configuration.
#Annotation allows your class to be called via annotations.
use Oh\DateExtraValidatorBundle\Validator\Constraints\DateExtra;
/**
* #Annotation
*/
class MyDateExtra extends DateExtra
{
}
Acme/FooBundle/Validator/Constraints/MyDateExtraValidator.php
Here, you extend the behaviour of the base validator with your own logic.
use Oh\DateExtraValidatorBundle\Validator\Constraints\DateExtraValidator;
class MyDateExtraValidator extends DateExtraValidator
{
public function validate($value, Constraint $constraint)
{
parent::validate($value, Constraint $constraint);
if (null === $value || '' === $value) {
return;
}
if(is_object($value) && method_exists($value, '__toString')) {
$value = (string) $value;
}
if (!$dateTime->getTimestamp()) {
$this->context->addViolation($constraint->invalidMessage);
}
}
}
You should now be able to use it into your model.
use Acme\FooBundle\Validator\Constraints as Extra;
class Foo
{
/**
* #Extra\MyDateExtra
*/
protected $time;
}