Hello,
i've got the same problem a few weeks ago.
I needed to execute some code before the Login.vm was displayed.
The code does not execute if your java class extends a secure screen.
If you extend the class VelocityScreen, then everything works.
public class Login extends VelocityScreen
{
/**
* Place all the data object in the context
* for use in the template.
*/
public void doBuildTemplate( RunData data, Context context )
{
ParameterParser _formParams;
HttpSession _session;
Enumeration _dataelts;
String _tempParm;
List _paramsList;
Map _map;
int counter = 0;
_session = data.getSession();
_formParams = data.getParameters();
//System.out.println("TEMPSCREEN" + data.getScreen());
//while(_dataelts.hasMoreElements())
//{
//_tempParm = _dataelts.nextElement().toString();
//System.out.println("LOGIN NAME " + _tempParm + "=" +
_formParams.getString(_tempParm));
//}
_dataelts = _formParams.keys();
_paramsList = new ArrayList();
while(_dataelts.hasMoreElements())
{
_tempParm = _dataelts.nextElement().toString();
if(!_tempParm.equals("template"))
{
counter++;
_map = new HashMap();
_map.put("name", _tempParm);
_map.put("value", _formParams.getString(_tempParm));
_paramsList.add(_map);
}
}
context.put("ParamsList", _paramsList);
context.put("ParamsNumber", String.valueOf(counter));
context.put("TempScreen" ,data.getScreen()+".vm");
}
}
bye
Fabio Daprile
Mark Nutter wrote:
>I'm still fairly new to Turbine and am trying to do some customization
>of the sample app I built when I did the TDK 2.1 HowTo. Just as a
>trivial trial run, I want to add a timestamp to the page you see when
>you first go to the site. It's a rendering of Login.vm, so I assumed I
>could just create a Login.java--I accomplished the same thing by editing
>Index.vm and Index.java. But it seems Login.vm is a special case. My
>Login class is never called. I even tested it by deliberately putting a
>divide-by-zero bug in doBuildTemplate(), but Login.vm comes up without a
>whimper. I just copied Index.java to Login.java and changed the
>classname, and saved it in the same directory, so I'm confident I'm not
>putting it in the wrong place.
>
>I've read the docs both in the /site directory and on the Jakarta web
>site, and nothing jumps out at me. I've tried to trace the program flow
>by reading Turbine.java and trying to trace through the various imports
>and method calls, but I'm just confusing myself.
>
>Anybody got a quick and easy pointer for me? If there's a doc or source
>file somewhere, I'm not afraid to read it, I just don't know where to
>look. Of course, more complete answers are welcome as well, even if
>it's "You can't do that."
>
>Am I barking up a wrong tree? My ultimate goal is to have a public
>front page with a certain amount of dynamic content that you can see
>without having to log in, and then after you log in you get extra
>functions. Do I just have to bite the bullet and go the
>custom-SessionValidator route?
>
>Thanks.
>
>Mark Nutter
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>My horoscope says today is a bad day to be superstitious.
>
>
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