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   1. drupal6
   2. drupal7

Validate filter format form submissions.

Code

modules/filter/filter.admin.inc, line 163

<?php
function filter_admin_format_form_validate($form, &$form_state) {
  if (!isset($form_state['values']['format'])) {
    $name = trim($form_state['values']['name']);
    $result = db_fetch_object(db_query("SELECT format FROM {filter_formats} WHERE name='%s'", $name));
    if ($result) {
      form_set_error('name', t('Filter format names need to be unique. A format named %name already exists.', array('%name' => $name)));
    }
  }
}
?>