public function RestExampleClientEdit::validateForm in Examples for Developers 3.x

Form validation handler.

Parameters

array $form: An associative array containing the structure of the form.

\Drupal\Core\Form\FormStateInterface $form_state: The current state of the form.

Overrides FormBase::validateForm

File

modules/rest_example/src/Form/RestExampleClientEdit.php, line 52

Class

RestExampleClientEdit

Edit or create a new node on a remote Drupal site.

Namespace

Drupal\rest_example\Form

Code

public function validateForm(array &$form, FormStateInterface $form_state) {
  if (!is_null($form_state
    ->get('node_id')) && !is_numeric($form_state
    ->get('node_id'))) {
    $form_state
      ->setErrorByName('submit', $this
      ->t('The ID passed in the URL is not an integer'));
  }
}