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class UniqueFieldConstraint in Drupal 10

Same name and namespace in other branches
  1. 8 core/lib/Drupal/Core/Validation/Plugin/Validation/Constraint/UniqueFieldConstraint.php \Drupal\Core\Validation\Plugin\Validation\Constraint\UniqueFieldConstraint
  2. 9 core/lib/Drupal/Core/Validation/Plugin/Validation/Constraint/UniqueFieldConstraint.php \Drupal\Core\Validation\Plugin\Validation\Constraint\UniqueFieldConstraint

Checks if an entity field has a unique value.

Plugin annotation


@Constraint(
  id = "UniqueField",
  label = @Translation("Unique field constraint", context = "Validation"),
)

Hierarchy

  • class \Drupal\Core\Validation\Plugin\Validation\Constraint\UniqueFieldConstraint extends \Symfony\Component\Validator\Constraint

Expanded class hierarchy of UniqueFieldConstraint

2 files declare their use of UniqueFieldConstraint
UserMailUnique.php in core/modules/user/src/Plugin/Validation/Constraint/UserMailUnique.php
UserNameUnique.php in core/modules/user/src/Plugin/Validation/Constraint/UserNameUnique.php

File

core/lib/Drupal/Core/Validation/Plugin/Validation/Constraint/UniqueFieldConstraint.php, line 15

Namespace

Drupal\Core\Validation\Plugin\Validation\Constraint
View source
class UniqueFieldConstraint extends Constraint {
  public $message = 'A @entity_type with @field_name %value already exists.';

  /**
   * {@inheritdoc}
   */
  public function validatedBy() {
    return '\\Drupal\\Core\\Validation\\Plugin\\Validation\\Constraint\\UniqueFieldValueValidator';
  }

}

Members