function DateFormatFormBase::validateForm

Overrides FormBase::validateForm

File

core/modules/system/src/Form/DateFormatFormBase.php, line 121

Class

DateFormatFormBase

Provides a base form for date formats.

Namespace

Code

public function validateForm(array &$form, FormStateInterface $form_state) {
  parent::validateForm($form, $form_state);
  // The machine name field should already check to see if the requested
  // machine name is available.
  $pattern = trim($form_state->getValue('date_format_pattern'));
  foreach ($this->dateFormatStorage
    ->loadMultiple() as $format) {
    if ($format->getPattern() == $pattern && $format->id() == $this->entity
      ->id()) {
      $this->messenger()
        ->addStatus($this->t('The existing format/name combination has not been altered.'));
      continue;
    }
  }
}