class UserMailRequiredValidator in Drupal 8

Checks if the user's email address is provided if required.

The user mail field is NOT required if account originally had no mail set and the user performing the edit has 'administer users' permission. This allows users without email address to be edited and deleted.

Hierarchy

• class \Drupal\user\Plugin\Validation\Constraint\UserMailRequiredValidator extends \Symfony\Component\Validator\ConstraintValidator

1 file declares its use of UserMailRequiredValidator

UserMailRequiredValidatorTest.php in core/modules/user/tests/src/Unit/Plugin/Validation/Constraint/UserMailRequiredValidatorTest.php

File

core/modules/user/src/Plugin/Validation/Constraint/UserMailRequiredValidator.php, line 15

Namespace

Drupal\user\Plugin\Validation\Constraint

class UserMailRequiredValidator extends ConstraintValidator {

  /**
   * {@inheritdoc}
   */
  public function validate($items, Constraint $constraint) {

    /** @var \Drupal\Core\Field\FieldItemListInterface $items */

    /* @var \Drupal\user\UserInterface $account */
    $account = $items
      ->getEntity();
    if (!isset($account)) {
      return;
    }
    $existing_value = NULL;

    // Only validate for existing user.
    if (!$account
      ->isNew()) {
      $account_unchanged = \Drupal::entityTypeManager()
        ->getStorage('user')
        ->loadUnchanged($account
        ->id());
      $existing_value = $account_unchanged
        ->getEmail();
    }
    $required = !(!$existing_value && \Drupal::currentUser()
      ->hasPermission('administer users'));
    if ($required && (!isset($items) || $items
      ->isEmpty())) {
      $this->context
        ->addViolation($constraint->message, [
        '@name' => $account
          ->getFieldDefinition('mail')
          ->getLabel(),
      ]);
    }
  }

}

Members

Name	Modifiers	Type	Description	Overrides
UserMailRequiredValidator::validate	public	function	Checks if the passed value is valid.