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
