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Posted to users@wicket.apache.org by armandoxxx <ar...@dropchop.com> on 2010/10/04 14:01:41 UTC

Form with dynamic fields model not updating

Hi ppl

Got a little problem with my form with dynamic fields. 
My form fields are panels added to ListView. Each panel representing a field
has sub components (for label, text field etc).
The problem I'm having is how to access these list view items, so I can set
them default model

I would like to do this on my form 


class MyForm {

       private ListView<Component>	formFieldList;

	@Override
	protected void onModelChanged() {
		Object obj	= this.getDefaultModelObject();
		
		if (obj instanceof Translation) {

			for (Component cmp	:
(List<Component>)this.formFieldList.getDefaultModelObject()) {
				cmp.setDefaultModelObject(obj);
			}
		}
	}
}

this code is not working now, so my guess is that this is not the proper way
to itterate list items and set them proper model object.

Kind regards

Armando




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Re: Form with dynamic fields model not updating

Posted by armandoxxx <ar...@dropchop.com>.
Here's the working code in my form class:
 
@Override
	protected void onModelChanged() {
		super.onModelChanged();
		if (this.formFieldList == null) return;
		this.formFieldList.visitChildren(new
FieldVisitor<Component>((IModel<T>)this.getDefaultModel()));
	}



Code in visitor: 

public class FieldVisitor<T extends Component> implements IVisitor<T> {
	
	private static final Logger LOG	=
LoggerFactory.getLogger(FieldVisitor.class);
	private IModel<?> model;
	
	
	public FieldVisitor(final IModel<?> theModel) {
		this.model = theModel;
	}
	
	
	@Override
	public Object component(final Component theComponent) {
	
((Component)theComponent.getDefaultModelObject()).setDefaultModelObject(this.model.getObject());
		((Component)theComponent.getDefaultModelObject()).modelChanged(); //I
GUESS THIS ONE WAS MISSING
		return IVisitor.CONTINUE_TRAVERSAL_BUT_DONT_GO_DEEPER;
	}
	
}



Regards 
Armando
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Re: Form with dynamic fields model not updating

Posted by armandoxxx <ar...@dropchop.com>.
Hey mate

Thank you for your super fast reply;) 

Here's my code:

		this.formFieldList.visitChildren(new IVisitor<Component>() {

			@Override
			public Object component(final Component theComponent) {
				
				ListItem<Component> item 	= (ListItem<Component>)theComponent;
			
((Component)item.getDefaultModelObject()).setDefaultModelObject(TranslationForm.this.getDefaultModelObject());
				return item;
			}
			
		});

but method onModelChanged on my custom components still don't get called.

searching further for solution ... 

thank you ! 

Armando
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Re: Form with dynamic fields model not updating

Posted by Jeremy Thomerson <je...@wickettraining.com>.
You could use visitChildren

Jeremy Thomerson
http://wickettraining.com
-- sent from my "smart" phone, so please excuse spelling, formatting, or
compiler errors

On Oct 4, 2010 7:02 AM, "armandoxxx" <ar...@dropchop.com> wrote:


Hi ppl

Got a little problem with my form with dynamic fields.
My form fields are panels added to ListView. Each panel representing a field
has sub components (for label, text field etc).
The problem I'm having is how to access these list view items, so I can set
them default model

I would like to do this on my form


class MyForm {

      private ListView<Component>      formFieldList;

       @Override
       protected void onModelChanged() {
               Object obj      = this.getDefaultModelObject();

               if (obj instanceof Translation) {

                       for (Component cmp      :
(List<Component>)this.formFieldList.getDefaultModelObject()) {
                               cmp.setDefaultModelObject(obj);
                       }
               }
       }
}

this code is not working now, so my guess is that this is not the proper way
to itterate list items and set them proper model object.

Kind regards

Armando




--
View this message in context:
http://apache-wicket.1842946.n4.nabble.com/Form-with-dynamic-fields-model-not-updating-tp2954185p2954185.html
Sent from the Users forum mailing list archive at Nabble.com.

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