Symfony Nested Validation Constraints - php

Question

I came accross curious problem. Lets say we want to validate some id. Validation should pass 10 different conditions(constraints) and we have to do it in 10 different places. I thought I can save myself writing unnessecary code by nesting one validation in another.
Here's what I did:
I've created new, custom validation constraint called IdParameter
I've registered IdParameterValidator.php file as service and injected validator service to it
I've put there another validation process(in our example 10 constraints which I will have to use in 10 different places) - I used Constraints\Collection to do it, so it looks kinda like this:
<?php
namespace Awesome\BlogBundle\Validator\Constraints;
use Symfony\Component\Validator;
class IdParameterValidator extends Validator\ConstraintValidator
{
private $_data = array();
private $_validator;
public function __construct(Validator\Validator\RecursiveValidator $validator)
{
$this->_validator = $validator;
}
public function validate($value, Validator\Constraint $constraint)
{
/* Preparing object of constraints */
$postIDConstraints = new Validator\Constraints\Collection(array(
'postId' => array(
new Validator\Constraints\Type(array(
'type' => 'integer',
'message' => 'This ain\'t no integer man!'
)),
new Validator\Constraints\Range(array(
'min' => 1,
'minMessage' => 'Post id is not valid'
))
)
));
/* Validating ID */
$this->_data['errors'] = $this->_validator->validate(array('postId' => $value), $postIDConstraints);
/* Checking validation result */
if(count($this->_data['errors']) > 0) {
$this->context->buildViolation($constraint->message)->addViolation();
}
}
}
So now I can use as many constraint as I whish and still have a clean service code:
$postIDConstraints = new Validator\Constraints\Collection(array(
'postId' => array(
new myValidator\Constraints\IdParameter()
)
));
/* Validating postID */
$this->_data['errors'] = $this->_validator->validate(array('postId' => (int)$postID), $postIDConstraints);
I'm wondering if it's correct approach?
Best Regards,
R.
P.S
I always comment my code - I didn't put comments here to keep it clean.