Ok, this works now but I need to be able to get at the current
Hibernate session from within populateItem()... Would it be possible to
add PageableDataView.getSession() or something or how else would I be
able to make sure I get at the exact same session that was used to
retrieve the item that was passed into populateItem()?
Thanks,
Gili
Phil Kulak wrote:
Couple problems there. First of all, you need to add the nested
ListView to the DataItem, not the PageableDataView. And also, why are
you listing columns? List ONE and ListView will iterate over it.
Could we please move all Wicket-related talk to the mailing list from now on?
-Phil
On 8/13/05, Gili <[EMAIL PROTECTED]> wrote:
Ok, this still isn't working... My Java code reads:
final int NUM_COLUMNS = 4;
ColumnedDataProvider columns = new
ColumnedDataProvider(NUM_COLUMNS, imageProvider);
PageableDataView images = new PageableDataView("images", columns,
NUM_COLUMNS)
{
@Override
protected void populateItem(DataItem item)
{
List images = (List) item.getModelObject();
add(new ListView("columns", images)
{
@Override
protected void populateItem(ListItem item)
{
List images = (List) item.getModelObject();
int counter = 1;
for (Object nestedModel: images)
{
assert(counter < NUM_COLUMNS);
IModel typedModel = (IModel) nestedModel;
Image image = (Image) typedModel.getObject(null);
BufferedDynamicImageResource imageResource = new
BufferedDynamicImageResource();
imageResource.setImage(image.toBufferedImage());
imageResource.setFormat("jpg");
item.add(new wicket.markup.html.image.Image("column" +
counter, imageResource));
++counter;
}
}
});
}
};
and the HTML reads:
<span wicket:id="images">
<span wicket:id="columns">
<span wicket:id="column1"></span>
<span wicket:id="column2"></span>
<span wicket:id="column3"></span>
<span wicket:id="column4"></span>
</span>
</span>
but Wicket complains at runtime:
A child with id 'columns' already exists
What am I doing wrong?
Gili
Phil Kulak wrote:
Don't do the first one: IModel extends IDetachable.
There's really no way to simplify more then that. They need to be
models so they can be detached. My feeling was that you would nest a
ListView in populateItem().
On 8/13/05, Gili <[EMAIL PROTECTED]> wrote:
FYI: Here is my populateItem...
@Override
protected void populateItem(DataItem item)
{
List images = (List) item.getModelObject();
for (Object nestedModel: images)
{
IModel typedModel = (IModel) nestedModel;
Image image = (Image)
typedModel.getObject(null);
}
}
As you can see, the user gets a List<HibernateModel> so he needs to
iterate over the elements *and* invoke IModel.getObject() to get the
actual list item. Is there a way to simplify this further or is this the
best it's going to get?
Thanks,
Gili
Gili wrote:
So my three changes are:
1) HibernateModel now implements IDetachable
2) ColumnedDataProvider is not abstract
3) Wrap list item in ColumnedDataProvider:
row.add(dataProvider.model(i.next()));
Can you please confirm all these changes are valid?
Thanks,
Gili
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