public function FormTestProgrammaticForm::validateForm in Drupal 9

Same name and namespace in other branches

1. 8 core/modules/system/tests/modules/form_test/src/Form/FormTestProgrammaticForm.php \Drupal\form_test\Form\FormTestProgrammaticForm::validateForm()

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

core/modules/system/tests/modules/form_test/src/Form/FormTestProgrammaticForm.php, line 89

Class

FormTestProgrammaticForm

Form builder to test programmatic form submissions.

Namespace

Drupal\form_test\Form

Code

public function validateForm(array &$form, FormStateInterface $form_state) {
  if ($form_state
    ->isValueEmpty('textfield')) {
    $form_state
      ->setErrorByName('textfield', t('Textfield is required.'));
  }
}