function _form_set_class

7.x form.inc _form_set_class(&$element, $class = array())
5.x form.inc _form_set_class(&$element, $class = array())
6.x form.inc _form_set_class(&$element, $class = array())

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

8 calls to _form_set_class()
theme_checkbox in drupal/includes/form.inc
Returns HTML for a checkbox form element.
theme_fieldset in drupal/includes/form.inc
Returns HTML for a fieldset form element and its children.
theme_file in drupal/includes/form.inc
Returns HTML for a file upload form element.
theme_password in drupal/includes/form.inc
Returns HTML for a password form element.
theme_radio in drupal/includes/form.inc
Returns HTML for a radio button form element.

... See full list

File

drupal/includes/form.inc, line 4233
Functions for form and batch generation and processing.

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';
  }
}