function LanguageAddForm::validateCustom

Validates the language addition form on custom language button.

File

core/modules/language/src/Form/LanguageAddForm.php, line 113

Class

LanguageAddForm

Controller for language addition forms.

Namespace

Code

public function validateCustom(array $form, FormStateInterface $form_state) {
    if ($form_state->getValue('predefined_langcode') == 'custom') {
        $langcode = $form_state->getValue('langcode');
        // Reuse the editing form validation routine if we add a custom language.
        $this->validateCommon($form['custom_language'], $form_state);
        if ($language = $this->languageManager
            ->getLanguage($langcode)) {
            $form_state->setErrorByName('langcode', $this->t('The language %language (%langcode) already exists.', [
                '%language' => $language->getName(),
                '%langcode' => $langcode,
            ]));
        }
    }
    else {
        $form_state->setErrorByName('predefined_langcode', $this->t('Use the <em>Add language</em> button to save a predefined language.'));
    }
}