Toscawidgets form with multiple buttons

[Jamie Bullock]

Hi,

I'm sure this is really simple, but I'm stumped right now.

Basically, I want a form with multiple buttons to be processed by a
single handler, but run sections of handler code conditionally
depending on which button was pressed.

class MyForm(TableForm):
class fields(WidgetsList):
fooButton = SubmitButton(attrs={'value':'foo'})
barButton = SubmitButton(attrs={'value':'bar'})
new_my_form = MyForm("new_my_form")

Then:

def post(self, *arg, **kw):

if kw['submit'] == 'foo':
do_something()
if kw['submit'] == 'bar':
do_something_else()

Is this possible?

Jamie

[Crusty]

Hey Jamie,

you answered your own question, or what is the problem with that?
It's done almost exactly the way you wrote it, except for some ugly
pecularities of how TW sets the value attribute, which is a bit twisted.

Could you be more specific what goes wrong on your code?

Tom

[Jamie Bullock]

Hi Tom,

Thanks for replying.

The problem is that kw['submit'] results in a KeyError exception.
Inspecting the kw dict shows there isn't element in the dict
corresponding to the submit button itself.

Any ideas?

Jamie

[Crusty]

Hey Jamie,

you named your buttons:

 fooButton = SubmitButton(attrs={'value':'foo'})

 barButton = SubmitButton(attrs={'value':'bar'})

so the respective kw fields should be kw['fooButton'] and kw['barButton']
If these don't exist as well it might have the following reason

I am working more with Sprox than with TW, and sprox does _not_ give SubmitButtons a name (<input type="submit" name="xyz" ... />)
You can check that out easily, navigate to the page where you form is located, and view the html source in your browser, and have a look at the submit buttons.
If they lack a name="xyz" field, then they will not be posted! there are multiple ways to work around this, the easiest i can think of for now is to give them a name manually:

barButton = SubmitButton(attrs={'value':'bar', 'name'='submit'})
(untested)

Give that a try, if this doesnt work, I'll throw together a small sample app and try myself.

Goodluck :)

[Jamie Bullock]

Hi Crusty,

On 27 Aug 2009, at 12:13, Crusty wrote:

>
> you named your buttons:
>
> fooButton = SubmitButton(attrs={'value':'foo'})
> barButton = SubmitButton(attrs={'value':'bar'})
>
> so the respective kw fields should be kw['fooButton'] and
> kw['barButton']
> If these don't exist as well it might have the following reason
>
> I am working more with Sprox than with TW, and sprox does _not_ give
> SubmitButtons a name (<input type="submit" name="xyz" ... />)
> You can check that out easily, navigate to the page where you form
> is located, and view the html source in your browser, and have a
> look at the submit buttons.
> If they lack a name="xyz" field, then they will not be posted!

That's correct, they lack name="" altogether.

> there are multiple ways to work around this, the easiest i can think
> of for now is to give them a name manually:
>
> barButton = SubmitButton(attrs={'value':'bar', 'name'='submit'})
> (untested)
>

Ah, this works!

Thanks for the help.

Jamie