class IsNullConstraintValidator

Null constraint validator.

Overrides the symfony validator to handle empty Typed Data structures.

Hierarchy

Expanded class hierarchy of IsNullConstraintValidator

File

View on git.drupalcode.org

core/lib/Drupal/Core/Validation/Plugin/Validation/Constraint/IsNullConstraintValidator.php, line 16

Namespace

Drupal\Core\Validation\Plugin\Validation\Constraint
View source 
class IsNullConstraintValidator extends IsNullValidator {
  use TypedDataAwareValidatorTrait;
  
  /**
   * {@inheritdoc}
   */
  public function validate($value, Constraint $constraint) : void {
    $typed_data = $this->getTypedData();
    if (($typed_data instanceof ListInterface || $typed_data instanceof ComplexDataInterface) && $typed_data->isEmpty()) {
      $value = NULL;
    }
    parent::validate($value, $constraint);
  }

}

Members

Title Modifiers Object type Summary
IsNullConstraintValidator::validate public function
TypedDataAwareValidatorTrait::getTypedData public function Gets the typed data object for the validated value.

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