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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