public function DateFormatFormBase::validateForm in Drupal 9

Same name and namespace in other branches

1. 8 core/modules/system/src/Form/DateFormatFormBase.php \Drupal\system\Form\DateFormatFormBase::validateForm()

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

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

Class

DateFormatFormBase

Provides a base form for date formats.

Namespace

Drupal\system\Form

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;
    }
  }
}