function node_type_form_validate

Form validation handler for node_type_form().

See also

node_type_form_submit()

File

modules/node/content_types.inc, line 256

Code

function node_type_form_validate($form, &$form_state) {
    $type = new stdClass();
    $type->type = $form_state['values']['type'];
    $type->name = trim($form_state['values']['name']);
    // Work out what the type was before the user submitted this form
    $old_type = $form_state['values']['old_type'];
    $types = node_type_get_names();
    if (!$form_state['values']['locked']) {
        // 'theme' conflicts with theme_node_form().
        // '0' is invalid, since elsewhere we check it using empty().
        if (in_array($type->type, array(
            '0',
            'theme',
        ))) {
            form_set_error('type', t("Invalid machine-readable name. Enter a name other than %invalid.", array(
                '%invalid' => $type->type,
            )));
        }
    }
    $names = array_flip($types);
    if (isset($names[$type->name]) && $names[$type->name] != $old_type) {
        form_set_error('name', t('The human-readable name %name is already taken.', array(
            '%name' => $type->name,
        )));
    }
}