Joe,
There were some errors on the wiki page and I've already corrected it, but
was nothing related with this problem.
I can't reproduce it here, can you show some more of your code so I can test
it here?
On Fri, Dec 19, 2008 at 8:32 AM, Joe123 --- <jpe...@hotmail.com> wrote:
>
> I have been debugging and noticed that the failure is in the
> GenericValueEncoder.toValue method
> The idFieldAdapter property is null and therefore it can't find a match.
>
> And why is the idFieldAdapter null?
> Because in the constructor(see below), the list parameter was null after
> submitting the form.
> Do I need to persist my List of objects? I don't want this....
> And I think the example on the wiki doesn't work as well.
>
> Does anyone had this error earlier?
>
>
> public GenericValueEncoder(List<T> list, String idField, PropertyAccess
> access) {
> if (idField != null && !idField.equalsIgnoreCase("null")) {
> if (list.size() > 0) {
> this.idFieldAdapter =
> access.getAdapter(list.get(0).getClass()).getPropertyAdapter(idField);
> }
> }
> this.list = list;
> }
>
> > Hello
> >
> > I use the select component with the @InjectSelectionModel annotation as
> described here:
> > http://wiki.apache.org/tapestry/Tapestry5AnotherSelectWithObjects
> >
> > <select t:type="select" t:id="categorySelect"
> model="categoriesSelectionModel" encoder="categoriesValueEncoder"
> value="selectedCategory" />
> >
> > The select is nicely loaded with categories. Next I submit the form and I
> notice that the setSelectedCategory method is called. But it prints
> "setSelectedCategory: null"
> > See below for some the corresponding java code. What am I doing wrong?
> Why is the selectedCategory null, after I have selected a category and
> submitted the form?
> >
> > @InjectSelectionModel(labelField = "name", idField = "id")
> > @Property
> > private List<Category> categories = new ArrayList<Category>();
> >
> > @Persist
> > private Category selectedCategory;
> >
> > public void setSelectedCategory(Category selectedCategory) {
> >
> > System.out.println("setSelectedCategory: " + selectedCategory);
> >
> > this.selectedCategory = selectedCategory;
> >
> > }
> >
> > public Category getSelectedRootCategory() {
> > return selectedRootCategory;
> > }
> >
> >
> >
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--
Atenciosamente,
Marcelo Lotif
Programador Java e Tapestry
FIEC - Federação das Indústrias do Estado do Ceará
(85) 3421-5910
