Did you know the
ApplicationSettings.setThrowExceptionOnMissingResource setting? If you
set this to false, you don't have to provide the messages. This
combined with IFeedbackMessageFilter or just not adding a
feedback(panel) alltogether acchieves the same - I think - as what you
did?
Eelco
On 10/15/05, Ralf Ebert <[EMAIL PROTECTED]> wrote:
> Hi,
>
> I just changed some of my forms to show form validation results
> without messages (I was fed of writing these property files). I just
> want form fields with validation errors getting a special css class
> (for eye catching formatting) and a general message like "check the
> marked fields". I got that working in a general way, just thought I
> should tell you about this use case and how I got that working
> because I think it's a quite common technique and Wicket could
> support it out of the box...
> I think the fact that the Validators know about messages currently is
> not the greatest approach because validation doesn't depend on
> messages in general. Maybe validation and reacting on validation
> errors could be separated a bit more.
>
>
> === Ok, at first I got rid of the need to supply a message for each
> form field:
>
> getSettings().addStringResourceLoader(new
> IStringResourceLoader() {
>
> public String loadStringResource(Component component,
> String key, Locale locale, String style) {
> if (key.endsWith("Validator"))
> return "Please enter a valid value for
> "+component.getId()+"!";
> return null;
> }
>
> });
>
>
> === Second thing: A form class that adds a AttributeModifier to all
> form components:
>
> public class HighlightForm extends Form {
>
> private final static AttributeModifier
> highlightAttributeModifier = new AttributeModifier("class", true, new
> AbstractReadOnlyModel() {
>
> public Object getObject(Component component) {
> if (component.hasErrorMessage())
> return "error";
> return null;
> }
>
> });
>
> @Override
> protected void onBeginRequest() {
> visitFormComponents(new FormComponent.IVisitor() {
>
> public void formComponent(FormComponent formComponent) {
> formComponent.add(highlightAttributeModifier);
> }
>
> });
> }
>
> public HighlightForm(String id, IModel model) {
> super(id, model);
> }
>
> public HighlightForm(String id) {
> super(id);
> }
>
> }
>
> === Third thing, a feedback markup container that is shown only when
> there was a validation error (message can be specified in the markup
> this way)
>
> public class SimpleFeedbackPanel extends WebMarkupContainer
> {
>
> /**
> * @see wicket.Component#Component(String)
> */
> public SimpleFeedbackPanel(final String id)
> {
> super(id);
> setModel(new FeedbackMessagesModel());
> }
>
> @Override
> public boolean isVisible() {
> return !((List) getModelObject()).isEmpty();
> }
>
> }
>
>
>
>
>
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