Simple class for testing methods as Form API callbacks.
Expanded class hierarchy of Callbacks
class Callbacks {
/**
* Form element validation handler for 'name' in form_test_validate_form().
*/
public function validateName(&$element, &$form_state) {
$triggered = FALSE;
if ($form_state['values']['name'] == 'element_validate') {
// Alter the form element.
$element['#value'] = '#value changed by #element_validate';
// Alter the submitted value in $form_state.
form_set_value($element, 'value changed by form_set_value() in #element_validate', $form_state);
$triggered = TRUE;
}
if ($form_state['values']['name'] == 'element_validate_access') {
$form_state['storage']['form_test_name'] = $form_state['values']['name'];
// Alter the form element.
$element['#access'] = FALSE;
$triggered = TRUE;
}
elseif (!empty($form_state['storage']['form_test_name'])) {
// To simplify this test, just take over the element's value into $form_state.
form_set_value($element, $form_state['storage']['form_test_name'], $form_state);
$triggered = TRUE;
}
if ($triggered) {
// Output the element's value from $form_state.
drupal_set_message(t('@label value: @value', array(
'@label' => $element['#title'],
'@value' => $form_state['values']['name'],
)));
// Trigger a form validation error to see our changes.
form_set_error('');
}
}
}
Name | Modifiers | Type | Description | Overrides |
---|---|---|---|---|
Callbacks:: |
public | function | Form element validation handler for 'name' in form_test_validate_form(). |