Just to update....I read in another forum thread that using
LoadableDetachabeModels is not the desired model type for mutliple page
forms (wizards). I guess compoundproperty model is the correct approach.
tdelesio wrote:
>
> Hi,
>
> I have a couple of forms which "share" the same model. On the first page
> I create the model and pass it to the rest of the pages. On each page a
> little more information is stored in the model. At the end of the process
> I want to write it to a database. Currently I'm trying to use
> DetachableModels to do this. On the first page I create the model like:
>
> final IModel leagueModel = new CompoundPropertyModel(new
> LoadableDetachableModel()
> {
>
> @Override
> protected Object load()
> {
> League league = new League();
> league.setAdmin(getPlayer());
> return league;
> }
>
> });
>
> This model is passed into the constructor of my form on the first page.
> The form adds some info to the model and then passes it to the second
> page.
>
> Form form = new Form("step1Form", leagueModel)
> {
>
> @Override
> protected void onSubmit() {
> setResponsePage(new
> CreateLeagueStep2Page(leagueModel));
> }
>
> };
> DropDownChoice leagueTypesDD = new DropDownChoice("leagueType", leagues,
> new ChoiceRenderer("leagueTypeDisplay", "typeOfLeague"));
> form.add(leagueTypesDD);
> form.add(new Button("submit"));
>
> add(form);
>
> In the page constructor of the second page the model is correct. All the
> data that was set on the first page is there. But, when I try and submit
> the form on the second page the value set from the first are nulled out.
> I assume this is because the load method is re-called and a new instance
> of League is created. I know I can achieve the desired result by passing
> an object (instead of the model) from page to page. Is it better to pass
> a model from page to page or pass the object itself? If I am supposed to
> use the DetachableModel approach how do I "persist" the model's state from
> page to page? Thanks for the help.
>
> Tim
>
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