So does mean that I need to add to my button's onSubmit() method:
protected void onSubmit() {
getForm.validate();
Person person = (Person) getParent().getModelObject();
... etc
}
Unfortunately I can't do that as the validate() method is protected.
-Matt
>>> [EMAIL PROTECTED] 04/22/05 11:07a.m. >>>
we probably should have an example on this and now that i think more
about it, i think we may want to change the design slightly.
the problem right now is that you need to validate the form (as
documented in the Form class javadoc). with one-button forms this
happens automatically.
in Form, the submit even listener method (which is internal), simply
calls Form.onValidate(), which looks like this:
protected void onValidate()
{
final int buttons = countButtons();
if (buttons <= 1)
{
validate();
}
else if (buttons > 1)
{
final Button button = findSubmittingButton();
if (button == null)
{
throw new WicketRuntimeException("Unable to find
submitting button");
}
else
{
button.onSubmit();
}
}
}
so, if you have a single button form, validate() gets called on the
form
automatically. but if you have more than one button, wicket locates
the
button and calls button.onSubmit(). it's currently up to the button
code itself to validate the form in this case. so you would call
Form.validate() in your button onSubmit(). i agree that this is a
little asymetrical and it seems like it ought to be fixed....
we could change the code so that validate() is always called before the
Button.onSubmit() method. this would result in
1. Form.validate()
2. Form.onSubmit()
3. Button.onSubmit()
and such behavior would be more consistent in some sense, but it would
also mean that you couldn't just directly handle a multi-button form
submission without validation (and model updating) occurring first.
maybe a better alternative would be to have a Button.onValidate() like
the Form.onValidate() with a default implementation that validates the
form that the button is attached to? then it would behave the way
you're expecting, but still be flexible enough to handle the case where
someone wants full control over the submit/validate process...
anyone on the dev team have some thoughts here?
jon
Matthew Watson wrote:
>I'm working on a wizard that includes three buttons: cancel, save,
>next.
>
>The wizard extends WebPage, which imbeds a form that in turn includes
>three buttons. See below:
>
>public class Wizard extends WebPage {
>
> public Wizard() {
> super();
> add(new WizardForm("form"));
> }
>
> private class WizardForm extends Form {
>
> public WizardForm(String s) {
> super(s);
>
> CompoundPropertyModel model = new
CompoundPropertyModel(new
>Person());
> setModel(model);
>
> add(new TextArea("summary"));
> add(new TextArea("description"));
>
> add(new CancelButton());
> add(new SaveButton());
> add(new NextButton(Whatever.class));
> }
>
> protected void onSubmit() {
> }
> }
>}
>
>
>public class SaveButton extends Button {
>
> public SaveButton() {
> super("save");
> }
>
> protected void onSubmit() {
> Person person = (Person) getParent().getModelObject();
>
> MockDatabase.getInstance().addPersont(person);
>
> RequestCycle cycle = getRequestCycle();
> cycle.setResponsePage(new People());
> cycle.setRedirect(true);
> }
>}
>
>When the save button is pressed the above is executed. However
>regardless of what I type into the html form the values I enter for
>summary + description never get set on the person object.
>
>I've more or less followed the guestbook example, but I don't
>understand why they aren't being set automatically.
>
>Any ideas?
>
>Thanks,
>Matt
>
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