public function FormTestStorageForm::elementValidateValueCached in Drupal 9

Same name and namespace in other branches

1. 8 core/modules/system/tests/modules/form_test/src/Form/FormTestStorageForm.php \Drupal\form_test\Form\FormTestStorageForm::elementValidateValueCached()
2. 10 core/modules/system/tests/modules/form_test/src/Form/FormTestStorageForm.php \Drupal\form_test\Form\FormTestStorageForm::elementValidateValueCached()

Form element validation handler for 'value' element.

Tests updating of cached form storage during validation.

File

core/modules/system/tests/modules/form_test/src/Form/FormTestStorageForm.php, line 118

Class

FormTestStorageForm

A multistep form for testing the form storage.

Namespace

Drupal\form_test\Form

Code

public function elementValidateValueCached($element, FormStateInterface $form_state) {

  // If caching is enabled and we receive a certain value, change the storage.
  // This presumes that another submitted form value triggers a validation error
  // elsewhere in the form. Form API should still update the cached form storage
  // though.
  if ($this
    ->getRequest()
    ->get('cache') && $form_state
    ->getValue('value') == 'change_title') {
    $form_state
      ->set([
      'thing',
      'changed',
    ], TRUE);
  }
}