Symfony2 get validation constraints on an entity

Question

Im working on a method to get all validation constraints of an entity (what i am trying to achieve is to return this data in JSON and apply the same constraints on client si

Answer 1

private function getValidations()
    {
        $validator=$this->get("validator");
        $metadata=$validator->getMetadataFor(new yourentity());
        $constrainedProperties=$metadata->getConstrainedProperties();
        foreach($constrainedProperties as $constrainedProperty)
        {
            $propertyMetadata=$metadata->getPropertyMetadata($constrainedProperty);
            $constraints=$propertyMetadata[0]->constraints;
            foreach($constraints as $constraint)
            {
                //here you can use $constraint to get the constraint, messages etc that apply to a particular property of your entity
            }
        }
    }

$validator=$this->get("validator");
$metadata=$validator->getMetadataFor(new yourentity());
The object $metadata now contains all the metadata about validations that concerns your specific entity.