Thanks much for your explanation.
Christopher Arndt wrote:
> Suren schrieb:
> > If I have multiple buttons on a form, how does the controller which
> > button has been clicked? I can send all submits to one controller
> > method but how to determine which of those four buttons were clicked?
>
> Just test for the existence of the form variable with the name given to the
> 'name' attribute of the button:
>
> class Controller:
> @expose(self, **kw):
> if kw.get('action_kung'):
> # do action kung
> elif kw.get('action_foo'):
> # do action foo
>
> where your form would look like:
>
> <form>
> ....
> <input type="submit" name="action_foo" value="Do Kung!">
> <input type="submit" name="action_foo" value="Do Foo!">
> </form>
>
> The test for the existence of the submit button should really be
>
> kw.get('action_foo') is not None
>
> but since form variables will be always strings, unless you mangle them with
> validators, there is no danger that a 0 (zero) integer value will be
> interpreted as False.
>
>
> Explanation:
>
> You test for the name rather for the value of the submit button, because
> submit
> buttons display their value as the button label, which will probably change in
> your application according to i18n, so you can't test for it in your
> controller.
>
> Normally, one should be able to use <button type="submit"> elements instead,
> since these can contain any element, but stupid IE will always submit values
> for *all* <button> elements in a form, regardless of which one you click!
>
> You can test this with this simple form:
>
> <form>
> <input type="text" name="text" size="50">
>
> <button name="nosubmit">
> This does nothing
> </button>
>
> <button type="submit" name="kung">
> Do Kung!
> </button>
> <button type="submit" name="foo">
> Do Foo!
> </button>
>
> </form>
>
> HTH, Chris
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