class Constraint

Same name in this branch
  1. 9 core/lib/Drupal/Component/Version/Constraint.php \Drupal\Component\Version\Constraint
Same name and namespace in other branches
  1. 11.x core/lib/Drupal/Core/Validation/Attribute/Constraint.php \Drupal\Core\Validation\Attribute\Constraint
  2. 11.x core/lib/Drupal/Core/Validation/Annotation/Constraint.php \Drupal\Core\Validation\Annotation\Constraint
  3. 11.x core/lib/Drupal/Component/Version/Constraint.php \Drupal\Component\Version\Constraint

Defines a validation constraint annotation object.

Plugin Namespace: Plugin\Validation\Constraint

For a working example, see \Drupal\Core\Validation\Plugin\Validation\Constraint\LengthConstraint

Hierarchy

Expanded class hierarchy of Constraint

See also

\Drupal\Core\Validation\ConstraintManager

\Symfony\Component\Validator\Constraint

hook_validation_constraint_alter()

Plugin API

Related topics

Annotations
Annotations for class discovery and metadata description.
1 string reference to 'Constraint'
DependencyTest::testSerialization in core/tests/Drupal/Tests/Core/Extension/DependencyTest.php
Ensures that constraint objects are not serialized.
60 classes are annotated with Constraint
AllowedValuesConstraint in core/lib/Drupal/Core/Validation/Plugin/Validation/Constraint/AllowedValuesConstraint.php
Checks for the value being allowed.
BlockContentEntityChangedConstraint in core/modules/block_content/src/Plugin/Validation/Constraint/BlockContentEntityChangedConstraint.php
Validation constraint for the block content entity changed timestamp.
BookOutlineConstraint in core/modules/book/src/Plugin/Validation/Constraint/BookOutlineConstraint.php
Validation constraint for changing the book outline in pending revisions.
BundleConstraint in core/lib/Drupal/Core/Entity/Plugin/Validation/Constraint/BundleConstraint.php
Checks if a value is a valid entity type.
CKEditor5ElementConstraint in core/modules/ckeditor5/src/Plugin/Validation/Constraint/CKEditor5ElementConstraint.php
CKEditor 5 element.

... See full list

File

core/lib/Drupal/Core/Validation/Annotation/Constraint.php, line 22

Namespace

Drupal\Core\Validation\Annotation
View on git.drupalcode.org
View source 
class Constraint extends Plugin {
  
  /**
   * The constraint plugin ID.
   *
   * @var string
   */
  public $id;
  
  /**
   * The human-readable name of the constraint plugin.
   *
   * @ingroup plugin_translatable
   *
   * @var string|\Drupal\Core\Annotation\Translation
   */
  public $label;
  
  /**
   * DataType plugin IDs for which this constraint applies.
   *
   * Valid values are any types registered by the typed data API, or an array
   * of multiple type names. For supporting all types, FALSE may be specified.
   * The key defaults to an empty array, which indicates no types are supported.
   *
   * @var string|string[]|false
   *
   * @see \Drupal\Core\TypedData\Annotation\DataType
   */
  public $type = [];

}

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