Symfony2 Validation Against the Whole Essence

Question

I need to be able to do complex custom checks of an entire object in Symfony2.

For example: my entity has many subentities , and all subentities must add up to 100.

As far as I can tell, Symfony2 validators only validate specific fields?

Answer 1

The answer is yes. You need to specify your restriction on the object, not the parameter, and specify the restriction on the restriction of the class level. Somewhat true example:

config.yml

 validator.my.uniquename: class: FQCN\To\My\ConstraintValidator arguments: [@service_container] tags: - { name: validator.constraint_validator, alias: ConstraintValidator } 

validation.yml

 FQCN\To\My\Entity: constraints: - FQCN\To\MyConstraint: ~ 

(no arguments to limit in this example)

My limitation

 namespace FQCN\To; use Symfony\Component\Validator\Constraint ; /** * @Annotation */ class MyConstraint extends Constraint { public $message = 'Constraint not valid'; public function validatedBy() { return 'ConstraintValidator'; } public function getTargets() { # This is the important bit. return self::CLASS_CONSTRAINT; } } 

My constraint validator

 class MyConstraintValidator extends ConstraintValidator { protected $container; function __construct($container) { $this -> container = $container; } function isValid($object, Constraint $constraint) { # validation here. return true; } }