if you want nicer code then use a dataview with a dataprovider, that
really is geared much better towards database data then listview, and
dataprovider.model() is a great place to wrap the entity with model,
so your code can look like this:
public void populateItem( tem item) {
item.add( new Link( "link" , item.getModel()) {
setResponsePage(new CategoryPage(getModel());}
-igor
On Thu, May 8, 2008 at 2:02 PM, Igor Vaynberg <[EMAIL PROTECTED]> wrote:
> On Thu, May 8, 2008 at 1:56 PM, Mathias P.W Nilsson
> <[EMAIL PROTECTED]> wrote:
> >
> >
>
> > add( new ListView( "myId" , detachedModel ){
> > public void populateItem( ListItem item) {
> > final Category category = (Category) item.getModelObject();
> >
> > item.add( new Link( "link" ){
> > public void onClick(){
> > setResponsePage( new CategoryPage( category ) );
>
> ^^^^^---------- this is bad. now your anonymous link component is
> holding onto a detached category object, so if in categorypage's
> constructor you try to access a lazy collection you will get an
> exception. the proper thing to do here is to:
>
>
> final Category category = (Category) item.getModelObject();
> final IModel cat=new HibernateEntityModel(category);
> item.add(new Link("link", cat){ setResponsePage(new
> CategoryPage(getModel()); }
>
> the idea is to pass a lookup(a model) rather then the entity itself.
> this way you are never holding onto the entity outside of a hibernate
> session.
>
> -igor
>
>
>
>
> > }
> > } );
> > }
> > });
> >
> > I hope this is right. This is obviously from the top of my head. My
> question
> > is.
> > When In my CategoryPage after a user has clicked the link in the list item
> > is the Category that I got
> > from a detached model detached? Or is it a hibernate proxy? If so, how
> can I
> > get it detached all the way?
> >
> >
> > Igor wrote something about a detached DataProvider. Do I need to use
> > DataProvider to get detached hibernate pojos? I would really want to know
> > how to do this. Right now, I'm in spagetti code with DAOS that throws
> > LazyLoading exceptions and Wicket pages that does the same.
> >
> >
> > --
> > View this message in context:
> http://www.nabble.com/Detached-models-tp17136199p17136199.html
> > Sent from the Wicket - User mailing list archive at Nabble.com.
> >
> >
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