FormTestStatePersistForm.php in Drupal 8
File
core/modules/system/tests/modules/form_test/src/Form/FormTestStatePersistForm.php
View source
<?php
namespace Drupal\form_test\Form;
use Drupal\Core\Form\FormBase;
use Drupal\Core\Form\FormStateInterface;
class FormTestStatePersistForm extends FormBase {
public function getFormId() {
return 'form_test_state_persist';
}
public function buildForm(array $form, FormStateInterface $form_state) {
$form['title'] = [
'#type' => 'textfield',
'#title' => 'title',
'#default_value' => 'DEFAULT',
'#required' => TRUE,
];
$form_state
->set('value', 'State persisted.');
$form['submit'] = [
'#type' => 'submit',
'#value' => t('Submit'),
];
return $form;
}
public function submitForm(array &$form, FormStateInterface $form_state) {
$this
->messenger()
->addStatus($form_state
->get('value'));
$form_state
->setRebuild();
}
}