class CpfUniqueConstraintValidator in CPF 8

Validates that a field is unique for the given entity type.

Hierarchy

• class \Drupal\cpf\Plugin\Validation\Constraint\CpfUniqueConstraintValidator extends \Symfony\Component\Validator\ConstraintValidator

File

src/Plugin/Validation/Constraint/CpfUniqueConstraintValidator.php, line 12

Namespace

Drupal\cpf\Plugin\Validation\Constraint

class CpfUniqueConstraintValidator extends ConstraintValidator {

  /**
   * {@inheritdoc}
   */
  public function validate($value, Constraint $constraint) {
    $fieldDefinition = $constraint->fieldDefinition;
    $field_name = $fieldDefinition
      ->getName();
    $entity = $constraint->entity;
    $entity_type_id = $entity
      ->getEntityTypeId();
    $id_key = $entity
      ->getEntityType()
      ->getKey('id');
    $id = (int) $entity
      ->id();
    $query = \Drupal::entityQuery($entity_type_id)
      ->condition($id_key, $id, '<>')
      ->condition($field_name, $value);
    if (!$constraint->ignoreBundle) {
      $query
        ->condition('type', $entity
        ->bundle());
    }
    $value_taken = (bool) $query
      ->range(0, 1)
      ->count()
      ->execute();
    if ($value_taken) {
      $this->context
        ->addViolation($constraint->message, [
        '%value' => $value,
        '@entity_type' => $entity
          ->getEntityType()
          ->getLowercaseLabel(),
        '@field_name' => Unicode::strtolower($fieldDefinition
          ->getLabel()),
      ]);
    }
  }

}

Members

Name	Modifiers	Type	Description	Overrides
CpfUniqueConstraintValidator::validate	public	function