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<?php | |
/** | |
* @file | |
* Contains \Drupal\Core\Validation\ConstraintValidatorFactory. | |
*/ | |
namespace Drupal\Core\Validation; | |
use Drupal\Core\DependencyInjection\ClassResolverInterface; | |
use Symfony\Component\Validator\Constraint; | |
use Symfony\Component\Validator\ConstraintValidatorFactory as BaseConstraintValidatorFactory; | |
/** | |
* Defines a constraint validator factory that works with container injection. | |
*/ | |
class ConstraintValidatorFactory extends BaseConstraintValidatorFactory { | |
/** | |
* Constructs a new ConstraintValidatorFactory. | |
* | |
* @param \Drupal\Core\DependencyInjection\ClassResolverInterface $class_resolver | |
*/ | |
public function __construct(ClassResolverInterface $class_resolver) { | |
$this->classResolver = $class_resolver; | |
} | |
/** | |
* {@inheritdoc} | |
*/ | |
public function getInstance(Constraint $constraint) { | |
$class_name = $constraint->validatedBy(); | |
if (!isset($this->validators[$class_name])) { | |
$this->validators[$class_name] = $this->classResolver->getInstanceFromDefinition($class_name); | |
} | |
return $this->validators[$class_name]; | |
} | |
} |