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;
        }
    }
}