public static function WebformElementBase::validateUniqueMultiple in Webform 6.x

Same name and namespace in other branches

1. 8.5 src/Plugin/WebformElementBase.php \Drupal\webform\Plugin\WebformElementBase::validateUniqueMultiple()

Form API callback. Validate element #unique multiple values.

File

src/Plugin/WebformElementBase.php, line 2039

Class

WebformElementBase

Provides a base class for a webform element.

Namespace

Drupal\webform\Plugin

Code

public static function validateUniqueMultiple(array &$element, FormStateInterface $form_state) {
  if (!isset($element['#unique'])) {
    return;
  }
  $name = $element['#name'];
  $value = NestedArray::getValue($form_state
    ->getValues(), $element['#parents']);
  if (empty($value)) {
    return;
  }

  // Compare number of values to unique number of values.
  if (count($value) !== count(array_unique($value))) {
    $duplicates = WebformArrayHelper::getDuplicates($value);
    if (isset($element['#unique_error'])) {
      $form_state
        ->setError($element, WebformHtmlHelper::toHtmlMarkup($element['#unique_error']));
    }
    elseif (isset($element['#title'])) {
      $t_args = [
        '%name' => empty($element['#title']) ? $name : $element['#title'],
        '%value' => reset($duplicates),
      ];
      $form_state
        ->setError($element, t('The value %value has already been submitted once for the %name element. You may have already submitted this webform, or you need to use a different value.', $t_args));
    }
    else {
      $form_state
        ->setError($element);
    }
  }
}