DrupalAPI.de

1. drupal
   1. drupal6
   2. drupal7

Code

modules/block/block.admin.inc, line 296

<?php
function block_add_block_form_validate($form, &$form_state) {
  if (empty($form_state['values']['info']) || db_result(db_query("SELECT COUNT(*) FROM {boxes} WHERE info = '%s'", $form_state['values']['info']))) {
    form_set_error('info', t('Please ensure that each block description is unique.'));
  }
}
?>