Thank you Carlos, that fixed the problem! However, I still don't quite
understand why. I guess I don't understand PropertyModel as well as I
thought I did. What does PropertyModel do that allows the ParticipationList
to be referenced across the two requests?
Thanks again!
-Alex Pine
On 8/30/07, Carlos Pita <[EMAIL PROTECTED]> wrote:
>
> This looks wrong too:
>
> List<Participation> participationList = exModel.getEx
> ().getParticipationList();
>
> ListView subjectListView = new ListView("list",
> participationList) {
>
> if your experiment model is intended to be a detachable one, ie. if you
> are
> loading it from a database or something, then you shouldn't instantiate
> the
> listview with a list but with a model that loads that list (or delegates
> to
> another model that eventually loads the entity to which the collection
> belongs...). If you pass the plain collection you are defeating the entire
> purpose of having the loadabledetachablemodel in the first place. For
> example, use new ListView("list",
> new PropertyModel(exModel, "participationList"));
>
> Regards,
> Carlos
>
>
> On 8/29/07, Igor Vaynberg <[EMAIL PROTECTED]> wrote:
> >
> > break in your onsubmit and look at the list that the listview is
> pointing
> > to. make sure the data is there, the fact that it isnt being persisted
> > might
> > be a problem outside of wicket's scope.
> >
> > -igor
> >
> >
> > On 8/29/07, Alex Pine <[EMAIL PROTECTED]> wrote:
> > >
> > > I'm sorry to spam the list like this, but I really need help on this.
> > > Igor's
> > > solution doesn't seem to change anything. No information is
> transferred
> > to
> > > the database upon hitting "on submit". If no one knows the solution,
> > does
> > > anyone have any ideas on how I could debug this? Is there some way I
> can
> > > reference the selections of the radiogroups from the the onSubmit
> method
> > > so
> > > I can see what their values are?
> > > Thanks for any help you can give,
> > > Alex
> > >
> > > On 8/29/07, Alex Pine <[EMAIL PROTECTED]> wrote:
> > > >
> > > > Thank you for the quick reply, but this fix doesn't seem to work.
> The
> > > > selections are never persisted on form submit. Any ideas?
> > > >
> > > > On 8/29/07, Igor Vaynberg <[EMAIL PROTECTED]> wrote:
> > > > >
> > > > > problem is here
> > > > >
> > > > > RadioGroup rg = new RadioGroup("choice");
> > > > >
> > > > > you are not setting the model for the radiogroup choice so your
> > > choices
> > > > > go
> > > > > no where
> > > > >
> > > > > RadioGroup rg = new RadioGroup("choice", new PropertyModel(
> > > > > item.getModel(),
> > > > > "status"));
> > > > >
> > > > > or leave it as it is and use PropertyListView instead
> > > > >
> > > > > -igor
> > > > >
> > > > >
> > > > > On 8/29/07, Alex Pine <[EMAIL PROTECTED]> wrote:
> > > > > >
> > > > > > Hi all,
> > > > > > I'm trying to use a Radio Choice component inside a Listview so
> > that
> > > > > each
> > > > > > list
> > > > > > item has one RadioGroup with three choices. When the form submit
> > > > > button is
> > > > > > pressed,
> > > > > > each selected choice should set a field in the model object of
> > each
> > > > > list
> > > > > > item.
> > > > > > The code below should explain the problem more fully:
> > > > > >
> > > > > >
> > > > > > /*
> > > > > > The ultimate goal is to set the "status" field in each
> > Participation
> > > > > > object
> > > > > > in the participationList of the object below.
> > > > > > */
> > > > > > public class Experiment {
> > > > > >
> > > > > > private String name;
> > > > > >
> > > > > > private List<Participation> participationList;
> > > > > >
> > > > > > /* Other fields, constructors, getters, setters, etc */
> > > > > >
> > > > > > }
> > > > > >
> > > > > >
> > > > > > public class Participation {
> > > > > >
> > > > > > public static final int PARTICIPATED = 1;
> > > > > > public static final int NO_SHOW = -1;
> > > > > > public static final int SHOWED = 0;
> > > > > >
> > > > > > private User user;
> > > > > >
> > > > > > private int status;
> > > > > >
> > > > > > public Participation() {
> > > > > > status = SHOWED; // Default value
> > > > > > }
> > > > > >
> > > > > > /* getters, setters, etc */
> > > > > > }
> > > > > >
> > > > > >
> > > > > > /* This is the web page that is supposed to do the setting*/
> > > > > > public class ParticipationPage extends BasePage {
> > > > > >
> > > > > > private static final long serialVersionUID = 1L;
> > > > > >
> > > > > > @SpringBean
> > > > > > private ExperimentDAO exDAO;
> > > > > >
> > > > > > private DetachableExperimentModel exModel;
> > > > > >
> > > > > > public ParticipationPage(Experiment ex) {
> > > > > > exModel = new DetachableExperimentModel(ex, exDAO);
> > > > > > add(new ParticipationForm("form"));
> > > > > > exModel.detach();
> > > > > > }
> > > > > >
> > > > > > class ParticipationForm extends Form {
> > > > > >
> > > > > > public ParticipationForm(String id) {
> > > > > > super(id);
> > > > > > List<Participation> participationList =
> exModel.getEx
> > > > > > ().getParticipationList();
> > > > > >
> > > > > > ListView subjectListView = new ListView("list",
> > > > > > participationList) {
> > > > > >
> > > > > > private static final long serialVersionUID = 1L;
> > > > > >
> > > > > > /*
> > > > > > I imagine the correct code should be something
> > like
> > > > > > this...?
> > > > > > */
> > > > > > public void populateItem(final ListItem item) {
> > > > > > Participation participation =
> > > > > > (Participation)item.getModelObject();
> > > > > > item.add(new Label("name",
> > participation.getUser
> > > > > > ().getName()));
> > > > > > RadioGroup rg = new RadioGroup("choice");
> > > > > > rg.add (new Radio("participated", new Model(
> > > > > > Participation.PARTICIPATED)));
> > > > > > rg.add(new Radio("no show", new Model(
> > > > > > Participation.NO_SHOW)));
> > > > > > rg.add(new Radio("showed", new Model(
> > > > > > Participation.SHOWED)));
> > > > > > item.add(rg);
> > > > > > }
> > > > > > };
> > > > > > subjectListView.setReuseItems (true);
> > > > > > add(subjectListView);
> > > > > > }
> > > > > >
> > > > > > @Override
> > > > > > protected void onSubmit() {
> > > > > >
> > > > > > /*
> > > > > > * Somehow I have to set each Participation object in the
> > > user's
> > > > >
> > > > > > participationList
> > > > > > * to the choice from corresponding the radio group.
> > > > > > */
> > > > > >
> > > > > > exDAO.persistExperiment(exModel.getEx());
> > > > > > exModel.detach();
> > > > > > }
> > > > > > }
> > > > > > }
> > > > > >
> > > > > > Does anyone know how to do this easily? I imagine it's not
> > > difficult,
> > > > > I
> > > > > > just
> > > > > > can't figure it out
> > > > > > from the examples on the web.
> > > > > > Thanks!
> > > > > > -Alex Pine
> > > > > >
> > > > >
> > > >
> > > >
> > >
> >
>
