Make sure you fully understand how CompoundPropertyModel and PropertyModel work first. I suggest to study some documentation about CompoundPropertyModel (as in [1], [2] or [3]) and to do some googleing for code examples.
[1] <http://cwiki.apache.org/WICKET/working-with-wicket-models.html> [2] <http://www.javabeat.net/javabeat/wicket/tutorials/basics/4-more-on-models.php> [3] <http://wicketinaction.com/book/> On Thu, Jan 21, 2010 at 9:28 AM, chinedu efoagui <chinedub...@gmail.com> wrote: > @jonas > > Thanks a lot for your help but could illustrate with some code please > so i can get the full idea > .......... > > > On 1/20/10, Jonas <barney...@gmail.com> wrote: >> with this code, you're trying to set a PersonnelrecordsDepartment Object >> into the field called parentId of the object referred to by the >> 'selected' variable >> that you're passing to the CompoundPropertyModel. The data types don't >> match, that's why wicket trys to safe the day using conversion (which >> obviously >> cannot succeed in this case...). >> You can either: >> a) change the data type of the parentId field of your 'selected' object >> or >> b) change your dropdown choice so only the id is propagated instead of the >> whole PersonnelrecordsDepartment Object. you could do that e.g. by >> setting the ids >> as choices, and use a custom choicerenderer which retrieves and >> renders the PersonnelrecordsDepartment Objects >> >> I hope that helps... >> >> On Wed, Jan 20, 2010 at 4:54 PM, chinedu efoagui <chinedub...@gmail.com> >> wrote: >>> @jonas ignore that. i was just refactoring the code for the email. >>> the error is runtime not compile time. >>> I think it is a conversion problem >>> please help >>> The field parentid is integer but the dropdown is expecting object >>> the form >>> <code> >>> IModel zaModel=new CompoundPropertyModel(selected); >>> departmentform.setModel(zaModel); >>> RequiredTextField departmentname=new >>> RequiredTextField("departmentname"); >>> departmentname.setOutputMarkupId(true); >>> departmentform.add(departmentname); >>> >>> DepartmentDropDownChoice title=new >>> DepartmentDropDownChoice("parentid",zaModel); >>> departmentform.add(title); >>> >>> departmentform.add(new >>> AjaxFallbackLink("canceldepartmentformbutton"){ >>> >>> �...@override >>> public void onClick(AjaxRequestTarget target) { >>> closeModalWindow(target); >>> >>> } >>> >>> >>> }); >>> feedback = new FeedbackPanel("feedback"); >>> feedback.setOutputMarkupId(true); >>> int[] filteredErrorLevels = new int[]{FeedbackMessage.ERROR}; >>> feedback.setFilter(new >>> ErrorLevelsFeedbackMessageFilter(filteredErrorLevels)); >>> departmentform.add(feedback); >>> >>> >>> FeedbackLabel departmentFeedbackLabel = new >>> FeedbackLabel("departmentfeedback", departmentname,new >>> Model("Department is required")); >>> departmentFeedbackLabel.setOutputMarkupId(true); >>> departmentname.add(new ComponentVisualErrorBehavior("onblur", >>> departmentFeedbackLabel)); >>> departmentform.add(departmentFeedbackLabel); >>> >>> >>> departmentform.add(new >>> AjaxFallbackButton("savedepartmentbutton", departmentform) { >>> >>> @Override >>> protected void onSubmit(AjaxRequestTarget target, Form<?> form) { >>> >>> PersonnelrecordsDepartment >>> pr=(PersonnelrecordsDepartment)form.getDefaultModel().getObject(); >>> >>> try { >>> if(isNew){ >>> dao.addPersonnelrecordsDepartment(pr); >>> } >>> else{ >>> >>> dao.savePersonnelrecordsDepartment(pr); >>> } >>> } catch (GenericBusinessException ex) { >>> >>> Logger.getLogger(DepartmentPanel.class.getName()).log(Level.SEVERE, >>> null, ex); >>> } >>> //target.addComponent(form); >>> setFormReponse(target); >>> >>> } >>> >>> @Override >>> protected void onError(AjaxRequestTarget target, >>> Form<?> form) >>> { >>> // repaint the feedback panel so errors are shown >>> >>> target.addComponent(feedback); >>> } >>> >>> }); >>> >>> add(departmentform); >>> } >>> private void setFormReponse(AjaxRequestTarget target){ >>> >>> >>> info("Save Operation was Successful"); >>> >>> target.addComponent(feedback); >>> >>> } >>> FeedbackPanel feedback; >>> >>> >>> } >>> >>> >>> </code> >>> >>> On 1/20/10, Jonas <barney...@gmail.com> wrote: >>>> not sure if that's the problem, but shouldn't >>>> >>>> setChoices(titles); >>>> >>>> be >>>> >>>> setChoices(departments); >>>> >>>> >>>> >>>> >>>> On Wed, Jan 20, 2010 at 4:14 PM, chinedu efoagui <chinedub...@gmail.com> >>>> wrote: >>>>> Hello , I have a class PersonnelrecordsDepartment >>>>> with the following fields with corresponding getters and setters >>>>> private java.lang.Integer id; >>>>> private java.lang.String departmentname; >>>>> private java.lang.Integer parentid; >>>>> >>>>> I left out the getters and setters . Any the field parentid can refer >>>>> to an existing department like a recursive stuff like having a self >>>>> foreign key >>>>> Anyway the problem is that i have a dropdownlchoice for the form >>>>> <code> >>>>> public class DepartmentDropDownChoice extends DropDownChoice { >>>>> >>>>> �...@springbean(name="IHRService") >>>>> private IHRService dao; >>>>> >>>>> */ /** >>>>> * >>>>> * @param id >>>>> * @param model >>>>> */ >>>>> public DepartmentDropDownChoice(String id,final IModel model){ >>>>> >>>>> super(id,model); >>>>> final ChoiceRenderer renderer = new >>>>> ChoiceRenderer("departmentname", "id"); >>>>> >>>>> setChoiceRenderer(renderer); >>>>> List<PersonnelrecordsDepartment> >>>>> departments=Collections.EMPTY_LIST; >>>>> try { >>>>> departments = dao.getPersonnelrecordsDepartmentList(); >>>>> } catch (GenericBusinessException ex) { >>>>> >>>>> Logger.getLogger(DepartmentDropDownChoice.class.getName()).log(Level.SEVERE, >>>>> null, ex); >>>>> } >>>>> setChoices(titles); >>>>> } >>>>> </code> >>>>> >>>>> and it gives this error anytime i try to save the personneldepartment >>>>> object >>>>> <code> >>>>> 2010-01-20 16:12:07,745 ERROR [org.apache.wicket.RequestCycle] - >>>>> <Cannot format given Object as a Number> >>>>> java.lang.IllegalArgumentException: Cannot format given Object as a >>>>> Number >>>>> at java.text.DecimalFormat.format(DecimalFormat.java:487) >>>>> at java.text.Format.format(Format.java:140) >>>>> at >>>>> org.apache.wicket.util.convert.converters.AbstractNumberConverter.convertToString(AbstractNumberConverter.java:111) >>>>> at >>>>> org.apache.wicket.util.lang.PropertyResolverConverter.convert(PropertyResolverConverter.java:85) >>>>> at >>>>> org.apache.wicket.util.lang.PropertyResolver$MethodGetAndSet.setValue(PropertyResolver.java:1107) >>>>> at >>>>> org.apache.wicket.util.lang.PropertyResolver$ObjectAndGetSetter.setValue(PropertyResolver.java:588) >>>>> at >>>>> org.apache.wicket.util.lang.PropertyResolver.setValue(PropertyResolver.java:136) >>>>> at >>>>> org.apache.wicket.model.AbstractPropertyModel.setObject(AbstractPropertyModel.java:169) >>>>> at >>>>> org.apache.wicket.Component.setDefaultModelObject(Component.java:3052) >>>>> at >>>>> org.apache.wicket.markup.html.form.FormComponent.updateModel(FormComponent.java:1168) >>>>> at >>>>> org.apache.wicket.markup.html.form.Form$FormModelUpdateVisitor.component(Form.java:225) >>>>> at >>>>> org.apache.wicket.markup.html.form.FormComponent.visitComponentsPostOrderHelper(FormComponent.java:514) >>>>> at >>>>> org.apache.wicket.markup.html.form.FormComponent.visitComponentsPostOrderHelper(FormComponent.java:493) >>>>> at >>>>> org.apache.wicket.markup.html.form.FormComponent.visitComponentsPostOrder(FormComponent.java:465) >>>>> at >>>>> org.apache.wicket.markup.html.form.Form.internalUpdateFormComponentModels(Form.java:2051) >>>>> at >>>>> org.apache.wicket.markup.html.form.Form.updateFormComponentModels(Form.java:2019) >>>>> at org.apache.wicket.markup.html.form.Form.process(Form.java:984) >>>>> at org.apache.wicket.markup.html.form.Form.process(Form.java:911) >>>>> at >>>>> org.apache.wicket.markup.html.form.Form.onFormSubmitted(Form.java:876) >>>>> at >>>>> org.apache.wicket.ajax.form.AjaxFormSubmitBehavior.onEvent(AjaxFormSubmitBehavior.java:135) >>>>> at >>>>> org.apache.wicket.ajax.AjaxEventBehavior.respond(AjaxEventBehavior.java:177) >>>>> at >>>>> org.apache.wicket.ajax.AbstractDefaultAjaxBehavior.onRequest(AbstractDefaultAjaxBehavior.java:299) >>>>> >>>>> </code> >>>>> >>>>> i think it has something to do with the conversion. but how do i >>>>> convert it again?? >>>>> How can i solve this problem??? >>>>> >>>>> --------------------------------------------------------------------- >>>>> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org >>>>> For additional commands, e-mail: users-h...@wicket.apache.org >>>>> >>>>> >>>> >>>> --------------------------------------------------------------------- >>>> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org >>>> For additional commands, e-mail: users-h...@wicket.apache.org >>>> >>>> >>> >>> --------------------------------------------------------------------- >>> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org >>> For additional commands, e-mail: users-h...@wicket.apache.org >>> >>> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org >> For additional commands, e-mail: users-h...@wicket.apache.org >> >> > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org > For additional commands, e-mail: users-h...@wicket.apache.org > > --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
