Tassel Data List
Hi, Does anyone know how the Data List (Tassel component) works? I downloaded the component but found no documentation/demo/example. The link to the website does not appear to be legitimately tapestry. Can someone suggest what is a good approach of doing pagination in Tap 3? Thanks, waimun. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: DynamicSelectionList and ArrayIndexOutOfBoundsException
The second version of the demo helped me to correct the way custom
objects are passed in the selection property model classes. I have
made the changes in my selection model classes and also the
pageBeginningRender() method. However, I am still having the same
problem. I have posted the .page and codes below.
-waimun
!-- .page --
property-specification name=toDepartment
type=project6.model.UserDepartment
persistent=no /
property-specification name=user type=project6.model.UserAccount
persistent=no /
property-specification name=departmentSelectionModel
type=org.apache.tapestry.form.IPropertySelectionModel
persistent=no /
property-specification name=usersByDepartmentList
type=java.util.List initial-value=new java.util.ArrayList()
persistent=no /
property-specification name=userDepartmentDao
type=project6.dao.UserDepartmentDao
global.getApplicationContext().getBean(userDepartmentDao)
/property-specification
property-specification name=userAccountDao
type=project6.dao.UserAccountDao
global.getApplicationContext().getBean(userAccountDao)
/property-specification
component id=referralForm type=Form
binding name=listener expression=listeners.formSubmit/
/component
component id=deptSelection type=PropertySelection
binding name=value expression=toDepartment /
binding name=model expression=departmentSelectionModel /
binding name=disabled expression=false /
static-binding name=submitOnChange value=false /
/component
component id=userSelection type=man:DynamicSelectionList
binding name=parent expression=components.deptSelection /
binding name=value expression=user /
binding name=childList expression=usersByDepartmentList /
/component
!-- .page --
/* method's code for page */
public void pageBeginRender(PageEvent event) {
List allDepartments = getUserDepartmentDao().findAll();
if (getDepartmentSelectionModel() == null) {
setDepartmentSelectionModel(new
DepartmentSelectionModel(
allDepartments));
}
if (getUsersByDepartmentList().size() == 0) {
DepartmentSelectionModel deptModel = (DepartmentSelectionModel)
getDepartmentSelectionModel();
for (Iterator it = deptModel.getDepartmentList().iterator(); it
.hasNext();) {
UserDepartment d = (UserDepartment) it.next();
List usersByDepartment =
getUserAccountDao().findByDepartment(d);
if (usersByDepartment.size() == 0) {
List a = new ArrayList();
a.add(getUserAccountDao().findByUsername(Waimun
Yeow));
usersByDepartment = a;
}
getUsersByDepartmentList().add(
new
UsersByDepartmentSelectionModel(usersByDepartment));
}
}
if (getToDepartment() == null) {
setToDepartment((UserDepartment) getDepartmentSelectionModel
().getOption(4));
}
}
/* method's code for page */
/* models' class */
public class UsersByDepartmentSelectionModel implements
IPropertySelectionModel, Serializable {
private List usersList = new ArrayList();
private static UserAccountDao dao;
public UsersByDepartmentSelectionModel() {
XmlBeanFactory factory = new XmlBeanFactory(new
ClassPathResource(
DaoContext.xml));
dao = (UserAccountDao) factory.getBean(userAccountDao);
}
public UsersByDepartmentSelectionModel(List users) {
this();
if (users == null)
return;
usersList = users;
}
public int getOptionCount() {
return usersList.size();
}
public Object getOption(int index) {
return usersList.get(index);
}
public String getLabel(int index) {
return ((UserAccount) usersList.get(index)).getUserName();
}
public String getValue(int index) {
return ((UserAccount)
usersList.get(index)).getUserId().toString();
}
public Object translateValue(String index) {
return dao.findByUserId
Re: DynamicSelectionList and ArrayIndexOutOfBoundsException
Yes, indeed the two selection models are suspicious. I used PropertySelection to test DepartmentSelectionModel and the value displayed by @Insert shows the correct value of the selected entry but the list did not generate selected=selected for the entry after submit and hence fell back to no entries listed as selected=selected. Is that the correct behavior of PropertySelection? I am definitely missing something there. By the way, I am using binding name=submitOnChange expression=true / to test the PropertySelection. -waimun On 8/18/06, Shing Hing Man wrote: UsersByDepartmentSelectionModel.java (and DepartmentSelectionModel.jav) looks suspcious. The UsersByDepartmentSelectionModel.getOption method returns a value from userLists, but UsersByDepartmentSelectionModel.translateValue returns a value using a dao. You might like to test UsersByDepartmentSelectionModel in a standalone PropertySelection component : select an entry from the drop list. Print the selected value in a form listener method. Shing - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
DynamicSelectionList and ArrayIndexOutOfBoundsException
I am using the DynamicSelectionList (Tap 3) component managed at the
Tassel site http://equalitylearning.org/Tassel/app?service=direct/1/
Search/viewComponentsp=SmatmshDynamicSelectionList
I followed the BikeMaker demo with source code at http://
lombok.demon.co.uk/tapestryDemo/welcome
The BikeMaker example above uses StringPropertySelectionModel and
String[] objects for the drop-down selection lists. However, I
modified my program to use custom PropertySelectionModel(s) and
custom objects as value objects in the models.
On the first render of the page, the DynamicSelectionList component
works exactly what I want to achieve. The options and their labels
are displayed correctly in the selection lists, and selecting an
option in the parent list reflects the correct items in the child
list. The problem is there is an ArrayIndexOutOfBoundsException while
trying the submit the form. Following the trace and component source
tells me that it is trying to retrieve an object at -1 position. I am
not sure why.
Has anyone encountered this problem before using custom objects for
the DynamicSelectionList component (Tap 3)? I have attached the
source code of the page and also the stack trace. Please let me know
if there's anything you need to figure out this problem. Thanks.
-waimun
/* start of source */
public abstract class AddReferral extends BasePage implements
PageRenderListener {
public abstract UserDepartmentDao getUserDepartmentDao();
public abstract IPropertySelectionModel getDepartmentSelectionModel();
public abstract void setDepartmentSelectionModel(
IPropertySelectionModel selectionModel);
public abstract UserAccountDao getUserAccountDao();
public abstract List getUsersByDepartmentList();
public abstract void setUsersByDepartmentList(List users);
public void pageBeginRender(PageEvent event) {
List allDepartments = getUserDepartmentDao().findAll();
if (getDepartmentSelectionModel() == null) {
setDepartmentSelectionModel(new
DepartmentSelectionModel(
allDepartments));
}
// get users by department from the department selection model.
DepartmentSelectionModel deptModel = (DepartmentSelectionModel)
getDepartmentSelectionModel();
for (Iterator it = deptModel.getDepartmentList().iterator(); it
.hasNext();) {
List usersByDepartment = null;
UserDepartment d = (UserDepartment) it.next();
usersByDepartment =
getUserAccountDao().findByDepartment(d);
getUsersByDepartmentList().add(
new
UsersByDepartmentSelectionModel(usersByDepartment));
}
}
}
/* end of source */
/*
Stack Trace:
* java.util.ArrayList.get(ArrayList.java:323)
*
man.library.components.dynamicSelectionList.DynamicSelectionList.getChil
dModel(DynamicSelectionList.java:309)
*
man.library.components.dynamicSelectionList.DynamicSelectionList.updateV
alue(DynamicSelectionList.java:189)
*
man.library.components.dynamicSelectionList.DynamicSelectionList.renderC
omponent(DynamicSelectionList.java:126)
* org.apache.tapestry.AbstractComponent.render
(AbstractComponent.java:857)
* org.apache.tapestry.AbstractComponent.renderBody
(AbstractComponent.java:624)
* org.apache.tapestry.form.Form.renderComponent(Form.java:362)
* org.apache.tapestry.AbstractComponent.render
(AbstractComponent.java:857)
* org.apache.tapestry.form.Form.rewind(Form.java:568)
* org.apache.tapestry.engine.RequestCycle.rewindForm
(RequestCycle.java:432)
* org.apache.tapestry.form.Form.trigger(Form.java:582)
* org.apache.tapestry.engine.DirectService.service
(DirectService.java:169)
* org.apache.tapestry.engine.AbstractEngine.service
(AbstractEngine.java:889)
* org.apache.tapestry.ApplicationServlet.doService
(ApplicationServlet.java:198)
* org.apache.tapestry.ApplicationServlet.doPost
(ApplicationServlet.java:327)
* javax.servlet.http.HttpServlet.service(HttpServlet.java:154)
* javax.servlet.http.HttpServlet.service(HttpServlet.java:92)
* com.caucho.server.dispatch.ServletFilterChain.doFilter
(ServletFilterChain.java:99)
* com.caucho.server.webapp.WebAppFilterChain.doFilter
(WebAppFilterChain.java:163)
* com.caucho.server.dispatch.ServletInvocation.service
(ServletInvocation.java:208)
* com.caucho.server.http.HttpRequest.handleRequest
(HttpRequest.java:259)
* com.caucho.server.port.TcpConnection.run(TcpConnection.java:363)
* com.caucho.util.ThreadPool.runTasks(ThreadPool.java:490)
* com.caucho.util.ThreadPool.run(ThreadPool.java:423)
* java.lang.Thread.run(Thread.java:613)
*/
Re: Auto-updating a drop-down list
Jesse and Nick, Thanks for the suggestions (1) EventListener (2) DynamicSelectionList. I am currently using Tap 3.03 and perhaps this is a good chance to upgrade if I want to take advantage of 4.1 features. But I am concerned whether if I need to make a lot of changes to the way I configured the application to integrate Spring with Tapestry in section 15.4.2.3 at (http://www.springframework.org/docs/reference/ webintegration.html). The DynamicSelectionList is also a good option since you said it works with T3 (with tweaks). Perhaps you can point me to an example and also provide the tweaks in order for it to work. Thanks, waimun
Override window.onload function
Hi. I am using the default @DatePicker in one of the html pages where I have a window.onload function declared in the head tags. Since using @DatePicker requires @Body, my window.onload function is replaced by the DatePicker script that initializes the javascript calendar object. 1. How do I append my onload function to the onload function added by the DatePicker? 2. Also, how do I also specify a different format (MM/dd/yy) for the date instead of the default (dd MMM ). Thanks, waimun - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
