function fe_taxonomy_machine_name_validate in Features Extra 6

Validate machine name.

1 string reference to 'fe_taxonomy_machine_name_validate'

fe_taxonomy_form_alter in ./fe_taxonomy.module

Implementation of hook_form_alter().

File

./fe_taxonomy.module, line 251

Code

function fe_taxonomy_machine_name_validate($form, &$form_state) {
  if (empty($form_state['values']['machine_name'])) {
    return;
  }
  $table = 'fe_taxonomy_vocabulary';
  if (!preg_match('!^[a-z0-9_]+$!', $form_state['values']['machine_name'])) {
    form_set_error('machine_name', t('The machine-readable name must contain only lowercase letters, numbers, and underscores.'));
  }
  elseif (db_result(db_query("SELECT COUNT(*) FROM {{$table}} WHERE vid <> %d AND machine_name = '%s'", $form_state['values']['vid'], $form_state['values']['machine_name']))) {
    form_set_error('machine_name', t('The machine-readable name has been taken. Please pick another one.'));
  }
}