[Ur] Forms that call rpc instead of redirect

[Aistis Raulinaitis]

Yes I did get a little demo working with ctextbox, cchecbox, and the like.
However the result is much more verbose and more likely to have runtime
errors over a regular form.

The way that a form will pack all of its contents into a stuct is a clear
advantage over the source based route. It requires defining possibly many
sources and wiring them all into the right slots, having to call "get" on
each one of them in the onclick handler and then wire all the gotten values
into the handler.

Losing the form submit struct typing mechanism and the added verbosity of
all the sources would be very painful if you are expecting the majority of
your forms to be of this style. Which I am.

On Feb 11, 2018 13:20, "Adam Chlipala" <adamc at csail.mit.edu> wrote:

> I think that kind of form has gone out of style, and I personally almost
> always use the Ur/Web tags like <ctextbox> to collect data and then choose
> RPCs programmatically.
>
> On 02/11/2018 04:10 PM, Aistis Raulinaitis wrote:
>
>> The form mechanism is excellent, with the built in type checking, but the
>> submit action function returns a page: state -> transaction page.
>>
>> Is there such a thing such as a version of forms that has a submit action
>> function with a type of: state -> transaction unit.
>>
>> This is so I can call rpc functions there in the submit action and then
>> the current page is updated using responses over a channel from the server.
>>
>
>
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