[Neos] Typo3.Form Neos Question

[Bastian Waidelich]

nikos wrote:

Hi Nikos,

> [...] I am wondering what is the best way to display a link back to display the form again

Just take a look at the provided finishers. The ConfirmationFinisher 
demonstrates how to return a custom message, the RedirectFinisher shows 
how to retrieve the current request (that you would need to create a 
proper link).

If you combine this you can create a custom finisher and do s.th. like:

$formRuntime = $this->finisherContext->getFormRuntime();
$uriBuilder = new \TYPO3\Flow\Mvc\Routing\UriBuilder();
$uriBuilder->setRequest($formRuntime->getRequest());

$formUri = $uriBuilder->uriFor('index');
$response = $formRuntime->getResponse();
$response->setContent(sprintf('<a href="%s">Back</a>', $formUri));

Better yet, use Fluid to render the message and link. I've created a 
simple "FluidFinisher" that you could use/adjust: 
https://gist.github.com/bwaidelich/cd696fb99c1882561e0b


BUT: Because even multi-step forms work stateless (that means the values 
are not persisted in a session but always encoded in the so called "form 
state" that is passed on from page to page) the values will be gone if 
you only link to the first page.

If you want to keep the values you should create a form instead. Let me 
know if you need help with that..


I'm wondering though whether redisplaying the form is a good idea in 
your case:

> The use case I am thinking of is when I am using an EmailFinisher and
> there is an error  e.g. can't connect to the smtp email server.

If it's really an unexpected error like this one, it's quite likely that 
the same error still occurs if you send the exact same data a few 
seconds later..
Instead you could create a simple finisher that stores the form data in 
a more reliable backend (the database or some csv file for example). 
That way - even when sending the email fails - you can recover the form 
data and/or try resending it at a later time.

HTH

-- 
Bastian Waidelich