class FormTestValidateRequiredForm in Drupal 8

Form constructor to test the #required property.

@internal

Hierarchy

• class \Drupal\Core\Form\FormBase implements ContainerInjectionInterface, FormInterface uses DependencySerializationTrait, LoggerChannelTrait, MessengerTrait, LinkGeneratorTrait, RedirectDestinationTrait, UrlGeneratorTrait, StringTranslationTrait
  • class \Drupal\form_test\Form\FormTestValidateRequiredForm

1 string reference to 'FormTestValidateRequiredForm'

form_test.routing.yml in core/modules/system/tests/modules/form_test/form_test.routing.yml

core/modules/system/tests/modules/form_test/form_test.routing.yml

File

core/modules/system/tests/modules/form_test/src/Form/FormTestValidateRequiredForm.php, line 13

Namespace

Drupal\form_test\Form

class FormTestValidateRequiredForm extends FormBase {

  /**
   * {@inheritdoc}
   */
  public function getFormId() {
    return 'form_test_validate_required_form';
  }

  /**
   * {@inheritdoc}
   */
  public function buildForm(array $form, FormStateInterface $form_state) {
    $options = [
      'foo' => 'foo',
      'bar' => 'bar',
    ];
    $validate = [
      '::elementValidateRequired',
    ];
    $form['textfield'] = [
      '#type' => 'textfield',
      '#title' => 'Name',
      '#required' => TRUE,
      '#required_error' => t('Please enter a name.'),
    ];
    $form['checkboxes'] = [
      '#type' => 'checkboxes',
      '#title' => 'Checkboxes',
      '#options' => $options,
      '#required' => TRUE,
      '#form_test_required_error' => t('Please choose at least one option.'),
      '#element_validate' => $validate,
    ];
    $form['select'] = [
      '#type' => 'select',
      '#title' => 'Select',
      '#options' => $options,
      '#required' => TRUE,
      '#form_test_required_error' => t('Please select something.'),
      '#element_validate' => $validate,
    ];
    $form['radios'] = [
      '#type' => 'radios',
      '#title' => 'Radios',
      '#options' => $options,
      '#required' => TRUE,
    ];
    $form['radios_optional'] = [
      '#type' => 'radios',
      '#title' => 'Radios (optional)',
      '#options' => $options,
    ];
    $form['radios_optional_default_value_false'] = [
      '#type' => 'radios',
      '#title' => 'Radios (optional, with a default value of FALSE)',
      '#options' => $options,
      '#default_value' => FALSE,
    ];
    $form['actions'] = [
      '#type' => 'actions',
    ];
    $form['actions']['submit'] = [
      '#type' => 'submit',
      '#value' => 'Submit',
    ];
    return $form;
  }

  /**
   * {@inheritdoc}
   */
  public function elementValidateRequired($element, FormStateInterface $form_state) {

    // Set a custom validation error on the #required element.
    if (!empty($element['#required_but_empty']) && isset($element['#form_test_required_error'])) {
      $form_state
        ->setError($element, $element['#form_test_required_error']);
    }
  }

  /**
   * {@inheritdoc}
   */
  public function submitForm(array &$form, FormStateInterface $form_state) {
    $this
      ->messenger()
      ->addStatus('The form_test_validate_required_form form was submitted successfully.');
  }

}

Members

Name	Modifiers	Type	Description	Overrides
DependencySerializationTrait::$_entityStorages	protected	property	An array of entity type IDs keyed by the property name of their storages.
DependencySerializationTrait::$_serviceIds	protected	property	An array of service IDs keyed by property name used for serialization.
DependencySerializationTrait::__sleep	public	function		1
DependencySerializationTrait::__wakeup	public	function		2
FormBase::$configFactory	protected	property	The config factory.	1
FormBase::$requestStack	protected	property	The request stack.	1
FormBase::$routeMatch	protected	property	The route match.
FormBase::config	protected	function	Retrieves a configuration object.
FormBase::configFactory	protected	function	Gets the config factory for this form.	1
FormBase::container	private	function	Returns the service container.
FormBase::create	public static	function	Instantiates a new instance of this class. Overrides ContainerInjectionInterface::create	87
FormBase::currentUser	protected	function	Gets the current user.
FormBase::getRequest	protected	function	Gets the request object.
FormBase::getRouteMatch	protected	function	Gets the route match.
FormBase::logger	protected	function	Gets the logger for a specific channel.
FormBase::redirect	protected	function	Returns a redirect response object for the specified route. Overrides UrlGeneratorTrait::redirect
FormBase::resetConfigFactory	public	function	Resets the configuration factory.
FormBase::setConfigFactory	public	function	Sets the config factory for this form.
FormBase::setRequestStack	public	function	Sets the request stack object to use.
FormBase::validateForm	public	function	Form validation handler. Overrides FormInterface::validateForm	62
FormTestValidateRequiredForm::buildForm	public	function	Form constructor. Overrides FormInterface::buildForm
FormTestValidateRequiredForm::elementValidateRequired	public	function
FormTestValidateRequiredForm::getFormId	public	function	Returns a unique string identifying the form. Overrides FormInterface::getFormId
FormTestValidateRequiredForm::submitForm	public	function	Form submission handler. Overrides FormInterface::submitForm
LinkGeneratorTrait::$linkGenerator	protected	property	The link generator.	1
LinkGeneratorTrait::getLinkGenerator Deprecated	protected	function	Returns the link generator.
LinkGeneratorTrait::l Deprecated	protected	function	Renders a link to a route given a route name and its parameters.
LinkGeneratorTrait::setLinkGenerator Deprecated	public	function	Sets the link generator service.
LoggerChannelTrait::$loggerFactory	protected	property	The logger channel factory service.
LoggerChannelTrait::getLogger	protected	function	Gets the logger for a specific channel.
LoggerChannelTrait::setLoggerFactory	public	function	Injects the logger channel factory.
MessengerTrait::$messenger	protected	property	The messenger.	29
MessengerTrait::messenger	public	function	Gets the messenger.	29
MessengerTrait::setMessenger	public	function	Sets the messenger.
RedirectDestinationTrait::$redirectDestination	protected	property	The redirect destination service.	1
RedirectDestinationTrait::getDestinationArray	protected	function	Prepares a 'destination' URL query parameter for use with \Drupal\Core\Url.
RedirectDestinationTrait::getRedirectDestination	protected	function	Returns the redirect destination service.
RedirectDestinationTrait::setRedirectDestination	public	function	Sets the redirect destination service.
StringTranslationTrait::$stringTranslation	protected	property	The string translation service.	1
StringTranslationTrait::formatPlural	protected	function	Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals	protected	function	Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation	protected	function	Gets the string translation service.
StringTranslationTrait::setStringTranslation	public	function	Sets the string translation service to use.	2
StringTranslationTrait::t	protected	function	Translates a string to the current language or to a given language.
UrlGeneratorTrait::$urlGenerator	protected	property	The url generator.
UrlGeneratorTrait::getUrlGenerator Deprecated	protected	function	Returns the URL generator service.
UrlGeneratorTrait::setUrlGenerator Deprecated	public	function	Sets the URL generator service.
UrlGeneratorTrait::url Deprecated	protected	function	Generates a URL or path for a specific route based on the given parameters.