Validate the language editing form. Reused for custom language addition too.

Related topics

File

drupal-6.x/includes/locale.inc, line 339

Administration functions for locale.module.

Code

function locale_languages_edit_form_validate($form, &$form_state) {
  // Validate that the name, native, and langcode variables are safe.
  if (preg_match('/["<>\']/', $form_state['values']['langcode'])) {
    form_set_error('langcode', t('The characters &lt;, &gt;, " and \' are not allowed in the language code field.'));
  }
  if (preg_match('/["<>\']/', $form_state['values']['name'])) {
    form_set_error('name', t('The characters &lt;, &gt;, " and \' are not allowed in the language name in English field.'));
  }
  if (preg_match('/["<>\']/', $form_state['values']['native'])) {
    form_set_error('native', t('The characters &lt;, &gt;, " and \' are not allowed in the native language name field.'));
  }

  if (!empty($form_state['values']['domain']) && !empty($form_state['values']['prefix'])) {
    form_set_error('prefix', t('Domain and path prefix values should not be set at the same time.'));
  }
  if (!empty($form_state['values']['domain']) && $duplicate = db_fetch_object(db_query("SELECT language FROM {languages} WHERE domain = '%s' AND language != '%s'", $form_state['values']['domain'], $form_state['values']['langcode']))) {
    form_set_error('domain', t('The domain (%domain) is already tied to a language (%language).', array('%domain' => $form_state['values']['domain'], '%language' => $duplicate->language)));
  }
  if (empty($form_state['values']['prefix']) && language_default('language') != $form_state['values']['langcode'] && empty($form_state['values']['domain'])) {
    form_set_error('prefix', t('Only the default language can have both the domain and prefix empty.'));
  }
  if (!empty($form_state['values']['prefix']) && $duplicate = db_fetch_object(db_query("SELECT language FROM {languages} WHERE prefix = '%s' AND language != '%s'", $form_state['values']['prefix'], $form_state['values']['langcode']))) {
    form_set_error('prefix', t('The prefix (%prefix) is already tied to a language (%language).', array('%prefix' => $form_state['values']['prefix'], '%language' => $duplicate->language)));
  }
}