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Posted to user@struts.apache.org by Jerry Jalenak <Je...@LABONE.com> on 2003/04/29 17:36:32 UTC
[repost] need help with defining nested form-bean

<still-needing-help!>

I have the following nested structure:

public class InitializeAction extends Action
{
	public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response)
	{
		UserSessionBean usb = new UserSessionBean();
		usb.setUserName("User Name");

		for (int i = 0; i < 3; i++)
		{
			DomainSessionBean dsb = new DomainSessionBean();
			dsb.setDomainName("Domain" + i);
			dsb.setDomainDescription("DomainDescription" + i);

			usb.addDomain(dsb);

			for (int j = 0; j < 3; j++)
			{
				ApplicationSessionBean asb = new
ApplicationSessionBean();
				asb.setApplicationName("Application" + j);
	
asb.setApplicationDescription("ApplicationDescription" + j);
				asb.setApplicationURL("ApplicationURL" + j);

				dsb.addApplication(asb);

			}
		}
		HttpSession session = request.getSession();
		session.setAttribute("UserSessionBean", usb);

		return(mapping.findForward("success"));
	}
}

What I end up with is a UserSessionBean that contains 1 or more
DomainSessionBeans; each DomainSessionBean then contains 1 or more
ApplicationSessionBeans.  The source JSP and the rendered HTML look like
this:

<%@ taglib uri="/struts-html"		prefix="html"%>
<%@ taglib uri="/struts-nested"		prefix="nested"%>
<%@ page language="java"%>
<%@ page contentType="text/html; charset=UTF-8" %>

<html:html locale="true">
	<body>
		<nested:form action="TestAction" method="POST">
			This is test page 2. and then some.<br>
				<nested:write name="UserSessionBean"
property="userName" /><br>
				<nested:iterate name="UserSessionBean"
property="domainList">
					<nested:checkbox
property="domainName" /><nested:write property="domainName" /><br>
					<nested:iterate
property="applicationList">
						<nested:checkbox
property="applicationName" /><nested:write property="applicationName" /><br>
					</nested:iterate>
				</nested:iterate>
			<nested:submit />
		</nested:form>
	</body>
</html:html>

<html lang="en">
	<body>
		<form name="TestFormBean" method="POST"
action="/membersolutions_v3/TestAction.action">
			This is test page 2. and then some.<br>
				User Name<br>
					<input type="checkbox"
name="domainList[0].domainName" value="on">Domain0<br>
						<input type="checkbox"
name="domainList[0].applicationList[0].applicationName"
value="on">Application0<br>
						<input type="checkbox"
name="domainList[0].applicationList[1].applicationName"
value="on">Application1<br>
						<input type="checkbox"
name="domainList[0].applicationList[2].applicationName"
value="on">Application2<br>
					<input type="checkbox"
name="domainList[1].domainName" value="on">Domain1<br>
						<input type="checkbox"
name="domainList[1].applicationList[0].applicationName"
value="on">Application0<br>
						<input type="checkbox"
name="domainList[1].applicationList[1].applicationName"
value="on">Application1<br>
						<input type="checkbox"
name="domainList[1].applicationList[2].applicationName"
value="on">Application2<br>
					<input type="checkbox"
name="domainList[2].domainName" value="on">Domain2<br>
						<input type="checkbox"
name="domainList[2].applicationList[0].applicationName"
value="on">Application0<br>
						<input type="checkbox"
name="domainList[2].applicationList[1].applicationName"
value="on">Application1<br>
						<input type="checkbox"
name="domainList[2].applicationList[2].applicationName"
value="on">Application2<br>
			<input type="submit" name="" value="Submit">
		</form>
	</body>
</html>

What I am struggling with is how do define in struts-config my form-bean
(TestFormBean) so that the user can 'select' the domain / applications and
struts will populate the form-bean correctly.  I've started out trying to
define domainList as a String[], but BeanUtils.populate keeps throwing an
ArrayIndexOutOfBoundsException.  How do I need to go about doing this?

Thanks in advance for your help.  


Jerry Jalenak
Team Lead, Web Publishing
LabOne, Inc.
10101 Renner Blvd.
Lenexa, KS  66219
(913) 577-1496

jerry.jalenak@labone.com

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