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Wizard for multi-stage interaction including Symfony Forms

3.1.1 2020-12-12 14:55 UTC

This package is auto-updated.

Last update: 2022-09-18 09:55:32 UTC


Wizard has been included into the core repository.


The Wizard Component is a management tool for multi-stage user interaction. It utilizes several Interfaces and the Wizard class to create a workflow that is compatible with Symfony Forms and Twig templating. Relying on the concept of Stages, the developer is able to define a sequence using a .yml file and control that sequence in their Controller.

On instantiation, the Wizard class requires a StageContainer and a full path to the stage definition file (in yaml format). The Wizard will load the stage definitions from there. The Wizard Component includes a YamlFileLoader for this purpose.

Create a concrete class that extends the Zikula\Component\Wizard\AbstractStageContainer. Use autowiring and autoconfiguration to configure the class:

_instanceof: # only works for classes that are configured in this file
        tags: ['my_special_tag']

# if this is the only instance of the interface you will use, you can use an alias
Zikula\Component\Wizard\StageContainerInterface: '@Acme\Bundle\MyCustomBundle\Container\FooStageContainer'

        $stages: !tagged_iterator my_special_tag


A Stage is simply a class which implements the StageInterface. It defines a name, a template name and any template parameters that stage will require. A stage must also define whether it is necessary by possibly completing some logic and returning a boolean. Stages marked as NOT necessary will be skipped following their instantiation and processing of the isNecessary() method, allowing that stage to complete tasks as needed before proceeding. Stages are skipped when the Wizard calls the getCurrentStage() method.

Use Symfony autowiring and autoconfiguring or manual Dependency Injection to add services to your stages.

Stages may optionally implement:

  • InjectContainerInterface if the Stage requires the Symfony container
  • FormHandlerInterface if the Stage will be using a Symfony Form

The Wizard can be halted in the isNecessary() method by throwing an AbortStageException. The message of which is available for retrieval using $wizard->getWarning().

Stage Definition File

The stage definition file is a simple yaml file. The first key stages: is required and then each stage should be listed by name and each should have properties class and order. The name key must be the same as the name of the stage as set in its Stage class. The class property should be the fully-qualified classname (with namespace) and the order property should be an integer identifying the sequential order of the stage. Optionally, a stage can be identified with a default property which should be set to true. This stage will be used by the wizard if no stage argument is provided.

Sample stages.yml

        class: Acme\Bundle\DemoBundle\Stage\PrepStage
        order: 1
        default: true
        class: Acme\Bundle\DemoBundle\Stage\GetInfoStage
        order: 2
        class: Acme\Bundle\DemoBundle\Stage\NoFormStage
        order: 3
        class: Acme\Bundle\DemoBundle\Stage\CompleteStage
        order: 4
        class: Acme\Bundle\DemoBundle\Stage\NonStage
        order: 99

Sample Controller

use Symfony\Component\Form\FormFactoryInterface;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpFoundation\RedirectResponse;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\Routing\RouterInterface;
use Zikula\Component\Wizard\FormHandlerInterface;
use Zikula\Component\Wizard\StageContainerInterface;
use Zikula\Component\Wizard\Wizard;
use Zikula\Component\Wizard\WizardCompleteInterface;

class MyController
     * @var StageContainerInterface
    private $stageContainer;

     * @var \Twig\Environment
    private $twig;

     * @var FormFactoryInterface
    private $formFactory;

     * @var RouterInterface
    private $router;

     * define route = 'index/{stage}'
    public function indexAction(Request $request, $stage)
        // begin the wizard
        $wizard = new Wizard($this->stageContainer, realpath(__DIR__ . '/../Resources/config/stages.yml'));
        $currentStage = $wizard->getCurrentStage($stage);
        if ($currentStage instanceof WizardCompleteInterface) {
            return $currentStage->getResponse($request);
        $templateParams = $currentStage->getTemplateParams();
        if ($wizard->isHalted()) {
            $request->getSession()->getFlashBag()->add('danger', $wizard->getWarning());
            return new Response($this->twig->render('@MyCustomBundle/error.html.twig', $templateParams));

        // handle the form
        if ($currentStage instanceof FormHandlerInterface) {
            $form = $this->formFactory->create($currentStage->getFormType());
            if ($form->isSubmitted() && $form->isValid()) {
                $url = $this->router->generate('index', ['stage' => $wizard->getNextStage()->getName()], true);

                return new RedirectResponse($url);
            $templateParams['form'] = $form->createView();

        return new Response($this->twig->render($currentStage->getTemplateName(), $templateParams));