Well, I did it. But there are some loses...
 
Before I use GET method to submit and all fields were checked perfectly. Now I use POST and they are didn't checked before post. After that now I have two independent type conversions - automatically in Get and handly in Post... From these points GET method looks more attractive.
 
Maybe it is possible to add Maybe submit_button_name into the result of runFormGet?
Dima
2010/11/25 Michael Snoyman <michael@snoyman.com>
On Thu, Nov 25, 2010 at 11:43 AM, Dmitry Olshansky
<olshanskydr@gmail.com> wrote:
> Hello all,
>
> can I handle a form with more than one button in Yesod?
>
> In this case pair (button_name, button_value) is sent to the server on
> submit. Can I get it in some way?

You can use the maybeStringInput function together with runFormPost'
(notice the apostrophe) to get access to submissions without using the
standard form setup. Depending on what you need, that may be
sufficient.

Michael