function _form_set_class

Sets a form element's class attribute.

Adds 'required' and 'error' classes as needed.

Parameters

$element: The form element.

$name: Array of new class names to be added.

Related topics

File

includes/form.inc, line 4418

Code

function _form_set_class(&$element, $class = array()) {
    if (!empty($class)) {
        if (!isset($element['#attributes']['class'])) {
            $element['#attributes']['class'] = array();
        }
        $element['#attributes']['class'] = array_merge($element['#attributes']['class'], $class);
    }
    // This function is invoked from form element theme functions, but the
    // rendered form element may not necessarily have been processed by
    // form_builder().
    if (!empty($element['#required'])) {
        $element['#attributes']['class'][] = 'required';
    }
    if (isset($element['#parents']) && form_get_error($element) !== NULL && !empty($element['#validated'])) {
        $element['#attributes']['class'][] = 'error';
    }
}