[TYPO3-mvc] Fluid: Pass current query string to form action

[roberto blanko]

Greetings fellow developers,

I've got a rather complicated problem, which consists of two parts of which
both I don't know how to realize them.

First of all I want to create a form in Fluid which uses the current page
including the whole query string (all the get parameters from third party
extensions) as its action.

I suppose this is possible somehow.

But once I've done that, there's a second problem: The query string will
contain a controller/action pair relevant for the extension rendering the
form. The form itself has a different action. So after I took the query
string I need to replace the action with the forms actual action.

An example of what I want to to:

Current URL showing the form:
http://www.domain.tld/page.html?tx_myext_pi1[controller]=Form&tx_myext_pi1[action]=result&tx_otherext_pi1[param]=something

The action-URL of the form now should look like this
http://www.domain.tld/page.html?tx_myext_pi1[controller]=Form&tx_myext_pi1[action]=submit&tx_otherext_pi1[param]=something

A nice solution would IMHO look somewhat like this:

<f:form controller="Form" action="feedback" arguments="{queryString}">

whereas controller and action overwrite possibly given controller action
params within the query string.

Ideas anyone? I would be really happy if anyone could give me a hint.

Regards
Roberto