protected function HtmlFormController::getFormArgument in Drupal 9

Same name and namespace in other branches

1. 8 core/lib/Drupal/Core/Controller/HtmlFormController.php \Drupal\Core\Controller\HtmlFormController::getFormArgument()

Extracts the form argument string from a request.

Depending on the type of form the argument string may be stored in a different request attribute.

One example of a route definition is given below.

defaults:
_form:
Drupal\example\Form\ExampleForm;

Parameters

\Drupal\Core\Routing\RouteMatchInterface $route_match: The route match object from which to extract a form definition string.

Return value

string The form definition string.

Overrides FormController::getFormArgument

File

core/lib/Drupal/Core/Controller/HtmlFormController.php, line 40

Class

HtmlFormController

Wrapping controller for forms that serve as the main page body.

Namespace

Drupal\Core\Controller

Code

protected function getFormArgument(RouteMatchInterface $route_match) {
  return $route_match
    ->getRouteObject()
    ->getDefault('_form');
}