class IsNullConstraintValidator in Zircon Profile 8

Null constraint validator.

Overrides the symfony validator to handle empty Typed Data structures.

Hierarchy

• class \Symfony\Component\Validator\ConstraintValidator implements ConstraintValidatorInterface
  • class \Symfony\Component\Validator\Constraints\IsNullValidator
    • class \Drupal\Core\Validation\Plugin\Validation\Constraint\IsNullConstraintValidator uses TypedDataAwareValidatorTrait

File

core/lib/Drupal/Core/Validation/Plugin/Validation/Constraint/IsNullConstraintValidator.php, line 21

Contains \Drupal\Core\Validation\Plugin\Validation\Constraint\IsNullConstraintValidator.

Namespace

Drupal\Core\Validation\Plugin\Validation\Constraint

class IsNullConstraintValidator extends IsNullValidator {
  use TypedDataAwareValidatorTrait;

  /**
   * {@inheritdoc}
   */
  public function validate($value, Constraint $constraint) {
    $typed_data = $this
      ->getTypedData();
    if (($typed_data instanceof ListInterface || $typed_data instanceof ComplexDataInterface) && $typed_data
      ->isEmpty()) {
      $value = NULL;
    }
    parent::validate($value, $constraint);
  }

}

Members

Name	Modifiers	Type	Description	Overrides
ConstraintValidator::$context	protected	property		3
ConstraintValidator::buildViolation Deprecated	protected	function	Wrapper for {@link ExecutionContextInterface::buildViolation} that supports the 2.4 context API.
ConstraintValidator::buildViolationInContext Deprecated	protected	function	Wrapper for {@link ExecutionContextInterface::buildViolation} that supports the 2.4 context API.
ConstraintValidator::formatTypeOf	protected	function	Returns a string representation of the type of the value.
ConstraintValidator::formatValue	protected	function	Returns a string representation of the value.
ConstraintValidator::formatValues	protected	function	Returns a string representation of a list of values.
ConstraintValidator::initialize	public	function	Initializes the constraint validator. Overrides ConstraintValidatorInterface::initialize	1
ConstraintValidator::OBJECT_TO_STRING		constant	Whether to cast objects with a "__toString()" method to strings.
ConstraintValidator::PRETTY_DATE		constant	Whether to format {@link \DateTime} objects as RFC-3339 dates ("Y-m-d H:i:s").
IsNullConstraintValidator::validate	public	function	Checks if the passed value is valid. Overrides IsNullValidator::validate
TypedDataAwareValidatorTrait::getTypedData	public	function	Gets the typed data object for the validated value.