public function TourTipForm::validateForm in Tour UI 8

Form validation handler.

Parameters

array $form: An associative array containing the structure of the form.

\Drupal\Core\Form\FormStateInterface $form_state: The current state of the form.

Overrides FormBase::validateForm

File

src/Form/TourTipForm.php, line 137

Class

TourTipForm

Form controller for the tour tip plugin edit forms.

Namespace

Drupal\tour_ui\Form

Code

public function validateForm(array &$form, FormStateInterface $form_state) {

  // Determine if one of our tips already exist.
  $storage = $form_state
    ->getStorage();
  $tour = $storage['#tour'];
  $tips = $tour
    ->getTips();

  // If there are no initial tips then we don't need to check.
  if (empty($tips)) {
    return;
  }
  $tip_ids = array_map(function ($data) {
    return $data
      ->id();
  }, $tips);
  if (in_array($form_state
    ->getValue('id'), $tip_ids) && isset($storage['#new'])) {
    $form_state
      ->setError($form['label'], $this
      ->t('A tip with the same identifier exists.'));
  }
}