function language_admin_add_custom_form_validate

Validate the language addition form on custom language button.

File

drupal/core/modules/language/language.admin.inc, line 223

Administration functions for language.module.

Code

function language_admin_add_custom_form_validate($form, &$form_state) {
  if ($form_state['values']['predefined_langcode'] == 'custom') {
    $langcode = $form_state['values']['langcode'];

    // Reuse the editing form validation routine if we add a custom language.
    language_admin_edit_form_validate($form['custom_language'], $form_state);
    if ($language = language_load($langcode)) {
      form_set_error('langcode', t('The language %language (%langcode) already exists.', array(
        '%language' => $language->name,
        '%langcode' => $langcode,
      )));
    }
  }
  else {
    form_set_error('predefined_langcode', t('Use the <em>Add language</em> button to save a predefined language.'));
  }
}