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   1. drupal6
   2. drupal7

Validate aggregator_form_feed form submissions.

Code

modules/aggregator/aggregator.admin.inc, line 517

<?php
function aggregator_form_category_validate($form, &$form_state) {
  if ($form_state['values']['op'] == t('Save')) {
    // Check for duplicate titles
    if (isset($form_state['values']['cid'])) {
      $category = db_query("SELECT cid FROM {aggregator_category} WHERE title = :title AND cid <> :cid", array(':title' => $form_state['values']['title'], ':cid' => $form_state['values']['cid']))->fetchObject();
    }
    else {
      $category = db_query("SELECT cid FROM {aggregator_category} WHERE title = :title", array(':title' => $form_state['values']['title']))->fetchObject();
    }
    if ($category) {
      form_set_error('title', t('A category named %category already exists. Please enter a unique title.', array('%category' => $form_state['values']['title'])));
    }
  }
}
?>