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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