FormTestStatePersistForm.php in Drupal 9

Namespace

Drupal\form_test\Form

File

core/modules/system/tests/modules/form_test/src/Form/FormTestStatePersistForm.php

<?php

namespace Drupal\form_test\Form;

use Drupal\Core\Form\FormBase;
use Drupal\Core\Form\FormStateInterface;

/**
 * Form constructor for testing form state persistence.
 *
 * @internal
 */
class FormTestStatePersistForm extends FormBase {

  /**
   * {@inheritdoc}
   */
  public function getFormId() {
    return 'form_test_state_persist';
  }

  /**
   * {@inheritdoc}
   */
  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;
  }

  /**
   * {@inheritdoc}
   */
  public function submitForm(array &$form, FormStateInterface $form_state) {
    $this
      ->messenger()
      ->addStatus($form_state
      ->get('value'));
    $form_state
      ->setRebuild();
  }

}

Classes

Name	Description
FormTestStatePersistForm	Form constructor for testing form state persistence.