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class IsNullConstraint in Zircon Profile 8.0

Same name and namespace in other branches
  1. 8 core/lib/Drupal/Core/Validation/Plugin/Validation/Constraint/IsNullConstraint.php \Drupal\Core\Validation\Plugin\Validation\Constraint\IsNullConstraint

Null constraint.

Overrides the symfony constraint to handle empty Typed Data structures.

Plugin annotation


@Constraint(
  id = "Null",
  label = @Translation("Null", context = "Validation"),
  type = false
)

Hierarchy

  • class \Symfony\Component\Validator\Constraint
    • class \Symfony\Component\Validator\Constraints\IsNull

Expanded class hierarchy of IsNullConstraint

File

core/lib/Drupal/Core/Validation/Plugin/Validation/Constraint/IsNullConstraint.php, line 23
Contains \Drupal\Core\Validation\Plugin\Validation\Constraint\IsNullConstraint.

Namespace

Drupal\Core\Validation\Plugin\Validation\Constraint
View source
class IsNullConstraint extends IsNull {

}

Members

Namesort descending Modifiers Type Description Overrides
Constraint::$errorNames protected static property Maps error codes to the names of their constants. 16
Constraint::$payload public property Domain-specific data attached to a constraint.
Constraint::addImplicitGroupName public function Adds the given group if this constraint is in the Default group. 1
Constraint::CLASS_CONSTRAINT constant Marks a constraint that can be put onto classes.
Constraint::DEFAULT_GROUP constant The name of the group given to all constraints with no explicit group.
Constraint::getDefaultOption public function Returns the name of the default option. 18
Constraint::getErrorName public static function Returns the name of the given error code.
Constraint::getRequiredOptions public function Returns the name of the required options. 11
Constraint::getTargets public function Returns whether the constraint can be put onto classes, properties or both. 11
Constraint::PROPERTY_CONSTRAINT constant Marks a constraint that can be put onto properties.
Constraint::validatedBy public function Returns the name of the class that validates this constraint. 11
Constraint::__construct public function Initializes the constraint with options. 11
Constraint::__get public function Returns the value of a lazily initialized option. 1
Constraint::__set public function Sets the value of a lazily initialized option. 1
Constraint::__sleep public function Optimizes the serialized value to minimize storage space.
IsNull::$message public property