function SimpleForm::validateForm
Same name in other branches
- 8.x-1.x form_api_example/src/Form/SimpleForm.php \Drupal\form_api_example\Form\SimpleForm::validateForm()
- 4.0.x modules/form_api_example/src/Form/SimpleForm.php \Drupal\form_api_example\Form\SimpleForm::validateForm()
Implements form validation.
The validateForm method is the default method called to validate input on a form.
Parameters
array $form: The render array of the currently built form.
\Drupal\Core\Form\FormStateInterface $form_state: Object describing the current state of the form.
Overrides FormBase::validateForm
File
-
modules/
form_api_example/ src/ Form/ SimpleForm.php, line 87
Class
- SimpleForm
- Implements the SimpleForm form controller.
Namespace
Drupal\form_api_example\FormCode
public function validateForm(array &$form, FormStateInterface $form_state) {
$title = $form_state->getValue('title');
if (strlen($title) < 5) {
// Set an error for the form element with a key of "title".
$form_state->setErrorByName('title', $this->t('The title must be at least 5 characters long.'));
}
}