function FormTestValidateForm::validateForm
Same name in other branches
- 8.9.x core/modules/system/tests/modules/form_test/src/Form/FormTestValidateForm.php \Drupal\form_test\Form\FormTestValidateForm::validateForm()
- 10 core/modules/system/tests/modules/form_test/src/Form/FormTestValidateForm.php \Drupal\form_test\Form\FormTestValidateForm::validateForm()
- 11.x core/modules/system/tests/modules/form_test/src/Form/FormTestValidateForm.php \Drupal\form_test\Form\FormTestValidateForm::validateForm()
Overrides FormBase::validateForm
File
-
core/
modules/ system/ tests/ modules/ form_test/ src/ Form/ FormTestValidateForm.php, line 55
Class
- FormTestValidateForm
- Form builder for testing \Drupal\Core\Form\FormValidatorInterface::validateForm().
Namespace
Drupal\form_test\FormCode
public function validateForm(array &$form, FormStateInterface $form_state) {
if ($form_state->getValue('name') == 'validate') {
// Alter the form element.
$form['name']['#value'] = '#value changed by #validate';
// Alter the submitted value in $form_state.
$form_state->setValueForElement($form['name'], 'value changed by setValueForElement() in #validate');
// Output the element's value from $form_state.
$this->messenger()
->addStatus($this->t('@label value: @value', [
'@label' => $form['name']['#title'],
'@value' => $form_state->getValue('name'),
]));
// Trigger a form validation error to see our changes.
$form_state->setErrorByName('');
// To simplify this test, enable form caching and use form storage to
// remember our alteration.
$form_state->setCached();
}
}
Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.