function SubmitDriven::promptCallback
Same name in other branches
- 8.x-1.x ajax_example/src/Form/SubmitDriven.php \Drupal\ajax_example\Form\SubmitDriven::promptCallback()
- 4.0.x modules/ajax_example/src/Form/SubmitDriven.php \Drupal\ajax_example\Form\SubmitDriven::promptCallback()
Callback for submit_driven example.
Select the 'box' element, change the markup in it, and return it as a renderable array.
Return value
array Renderable array (the box element)
File
-
modules/
ajax_example/ src/ Form/ SubmitDriven.php, line 64
Class
- SubmitDriven
- Submit a form without a page reload.
Namespace
Drupal\ajax_example\FormCode
public function promptCallback(array &$form, FormStateInterface $form_state) {
// In most cases, it is recommended that you put this logic in form
// generation rather than the callback. Submit driven forms are an
// exception, because you may not want to return the form at all.
$element = $form['container'];
$element['box']['#markup'] = "Clicked submit ({$form_state->getValue('op')}): " . date('c');
return $element;
}