Thank you for our opinion Maurice,
problem is that what you're telling me is not exactly my problem
(although it will be further on, so thank you anyway)
as I see I have to submit the whole form in order to retain (not yet
save do DB!) those values from this particular dynamic list component,
I update (by setting the ajax target) only this one component but yet
the whole form must be submitted and it's a big form, what if it
contains fileuploads and stuff that is not needed for this ajax
component, that would be an overkill
or am I missing something?
regards
Wojtek
2008/3/5, Maurice Marrink <[EMAIL PROTECTED]>:
> We usually follow this approach
> -load initial list
> -clone initial list for working copy
> -if the list is likely to be altered often or by multiple persons
> store a flag for each item indicating if it was removed or added
> -have wicket modify the working copy (and or the flags)
> -in the onsubmit load a fresh list from the db, if you have flags use
> that to delete / add items. if you do not have flags your working copy
> is how the list should end up, so clear list and insert all items from
> working copy.
>
> Maurice
>
>
> On Wed, Mar 5, 2008 at 3:13 PM, Wojciech Biela <[EMAIL PROTECTED]> wrote:
> > I don't know if the code will help, if it doesn't please just
> > disregard it and answer my question
> >
> > regards
> > Wojtek
> >
> > 2008/3/5, Wojciech Biela <[EMAIL PROTECTED]>:
> >
> >
> > > Hello
> > >
> > > This time my question is not so general.
> > >
> > > We have a big form, part of this form there is a component which
> > > should be a dynamic list of fields like this:
> > >
> > > |TextField| - remove
> > > |TextField| - remove
> > > |TextField| - remove
> > > |TextField| - add
> > >
> > > if you click "add" another row "|TextField| - remove" should appear at
> > > the bottom, it you should click "remove" then this row should be
> > > removed
> > >
> > > problem we have is that the "add" and "remove" link does not send the
> > > form, it only sends and ajax request to add an element to the list of
> > > components and it operates (target) on a DIV that wraps the whole
> > > list, so afterwards it renders the list again loosing values that were
> > > already put in
> > >
> > > what is the preferred method to do such a thing? should the add and
> > > remove link be a submit link with defaultFormProcessing set to false?
> > > or maybe should we try to save values to model objects onchange in the
> > > respective fields themselves
> > >
> > > isn't there a way to do it in a neat fashion?
> > >
> > > code responsible for the list component is
> > >
> > > wrapper = new WebMarkupContainer("attributes-wrapper");
> > > listView = new ListView("attributes", attributeValuesList) {
> > > public void populateItem(final ListItem listItem) {
> > > final AttributeValue attributeValue = (AttributeValue)
> > > listItem.getModelObject();
> > > Renderer inputRenderer =
> > > attributeValue.getAttribute().getInputRenderer();
> > > Component component =
> inputRenderer.getComponent(attributeValue);
> > > listItem.add(component);
> > > AjaxLink addLink = new AddLink("add-link");
> > > AjaxLink removeLink = new RemoveLink("remove-link", listItem);
> > > if (listItem.getIndex() < (listView.getViewSize() - 1)) {
> > > addLink.setVisible(false);
> > > } else {
> > > removeLink.setVisible(false);
> > > }
> > > listItem.add(addLink);
> > > listItem.add(removeLink);
> > > }
> > > };
> > > wrapper.setOutputMarkupId(true);
> > >
> > > HTML is
> > >
> > > <div wicket:id="attributes-wrapper" class="composit-wrapper">
> > > <div wicket:id="attributes" class="composit">
> > > <div wicket:id="attributeAndValue"
> class="composit-item"></div>
> > > <div class="composit-links">
> > > <a wicket:id="add-link">+ add</a>
> > > <a wicket:id="remove-link">- remove</a>
> > > </div>
> > > </div>
> > > </div>
> > >
> > >
> > > --
> > > Wojtek Biela
> > >
> >
> >
> > --
> > Wojtek Biela
> >
>
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> >
> >
>
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--
Wojtek Biela
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