Model data is not coming to drop down list.

[sasikanthn]

Hi
I am trying to display some data in to dropdown list when form is loaded.
But i am unable to display it.
I am getting data in to the list from db.Here is my log file.
2005-12-31 13:53:49,484 INFO [com.db.home.ProjectManagerJdbc] - List size->>>3
2005-12-31 13:53:54,187 INFO [com.home.ProjectEntryController] - ClusterManagerMr. A
2005-12-31 13:53:54,187 INFO [com.home.ProjectEntryController] - ClusterManagerMr. Y
2005-12-31 13:53:54,187 INFO [com.home.ProjectEntryController] - ClusterManagerMr. B
2005-12-31 13:53:54,187 INFO [com.home.ProjectEntryController] - ClusterManagerXXX
2005-12-31 13:53:54,187 INFO [com.home.ProjectEntryController] - ClusterManagerhhhhh
2005-12-31 13:53:54,187 INFO [com.home.ProjectEntryController] - ClusterManagerklkl



Here is my controllerclass

public class ProjectEntryController extends SimpleFormController {
protected final Log logger = LogFactory.getLog(getClass());
private ProjectEntryJdbc jdbc;

private ClusterManagerJdbc clusterManagerJdbc;
private ProjectManagerJdbc projectManagerJdbc;

public void setProjectManagerJdbc(ProjectManagerJdbc jdbc) {
this.projectManagerJdbc = jdbc;
}

public void setClusterManagerJdbc(ClusterManagerJdbc jdbc) {
this.clusterManagerJdbc = jdbc;
}
public void setProjectEntryJdbc(ProjectEntryJdbc jdbc) {
this.jdbc = jdbc;
}


public ModelAndView onSubmit(Object command) throws ServletException {

ProjectEntry projectEntry=new ProjectEntry();

String projectName=((ProjectEntry)command).getProjectName ();
String projectManager=((ProjectEntry)command).getProjectM anager();
String clusterManager=((ProjectEntry)command).getClusterM anager();

int status = 0;
try {
status = jdbc.insertProject(projectName,projectManager,clus terManager);
} catch (Throwable e) {
logger.error("Error in leaveEntry *******", e);
e.printStackTrace();
}
logger.info("Success fully Inserted");
if (status == 1)
return new ModelAndView("ProjectEntry");
else
return new ModelAndView("home");
}

protected ModelAndView showForm(HttpServletRequest request, HttpServletResponse response, BindException errors) throws Exception {

logger.info("*******************showForm");
TeamMember teamMember = new TeamMember();
List managerList = new ArrayList();
List clusterManagerlist = new ArrayList();
try {
managerList = projectManagerJdbc.getProjectManager();

} catch (Throwable e) {
e.getStackTrace();
}
try {
clusterManagerlist = clusterManagerJdbc.getClusterManagerList();
} catch (Throwable e) {
logger.error("", e);
logger.info(e);
e.getStackTrace();
}
Iterator itr1 = clusterManagerlist.iterator();
while (itr1.hasNext()) {
teamMember = (TeamMember) itr1.next();
logger.info("ClusterManager"+teamMember.clustureManagerName);
}

Map map = new HashMap();
map.put("managerList", managerList);
map.put("clusterManagerList", clusterManagerlist);

return new ModelAndView("ProjectEntry", "Model", map);
}

protected ModelAndView processFormSubmission(HttpServletRequest request, HttpServletResponse response, Object command, BindException errors) throws Exception{
logger.info("**********INSIDE PROCESS FROM SUBMISSION********************");
if (!isFormSubmission(request))
{
return showForm(request, response, errors);
}
else
{
return onSubmit(request, response, command, errors);
}
}


Here is my jsp file


<spring:bind path="ProjectEntry.projectManager">
<TD align="left">
<select name="projectManager">
<option value ="0">Select a project manager</option>
<c:forEach var="projectEntry" items="${Model.managerList}">

<option value ="<c:out value="${projectEntry.projectManagerId}"/>"><c:out value="${projectEntry.projectManagerName}"/></option>
</c:forEach>
</select>
</TD>
</spring:bind>
</TR>
<TR align=center bgcolor="#F2F5FF">
<TD align="left">
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<b>Cluster Manager</b>
<spring:bind path="ProjectEntry.clusterManager">
<TD align="left">
<select name="clusterManager">
<c:forEach var="teamMember" items="${Model.clusterManagerList}">
<option value ="<c:out value="${teamMember.clustureManagerId}"/>"><c:out value="${teamMember.clustureManagerName}"/></option>
</c:forEach>
</select>
</TD>
</spring:bind>

[shan]

if you want to send extra model data to the form, override the:
protected Map referenceData(HttpServletRequest request) throws Exception
method of the controller

[sasikanthn]

Hi shan,
I am using showform method. As you said i also tried using reference data method. But i am getting the data. I am not able to display it . I think the problem is in JSP while displaying Model.
Please have a look at code.

[jeffry]

Where you are doing this:
return new ModelAndView("ProjectEntry", "Model", map);

Try this:
return new ModelAndView("ProjectEntry", map);


In your JSP, where you are doing this:
<c:forEach var="projectEntry" items="${Model.managerList}">

Try this:
<c:forEach var="projectEntry" items="${managerList}">

If that doesn't work, try inspecting the request.getAttributes() keySet using a debugger or just output it in the jsp. That will tell you for sure if the dropdowns are present.

Other suggestions:
The code that loads dropdown lists should be placed in the referenceData method.
I'm not sure why you are needing to override the processFormSubmission method...it should work fine without overriding.

[sasikanthn]

Hi jeffry,
Thank you very much. Now i got it working fine.