function aggregator_form_category_validate

Form validation handler for aggregator_form_category().

See also

aggregator_form_category_submit()

File

modules/aggregator/aggregator.admin.inc, line 575

Code

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. Enter a unique title.', array(
                '%category' => $form_state['values']['title'],
            )));
        }
    }
}