Re: An Apps Session from a Framework [SOLUTION]
Re: An Apps Session from a Framework [SOLUTION]
- Subject: Re: An Apps Session from a Framework [SOLUTION]
- From: "Jonathan Fleming" <email@hidden>
- Date: Fri, 30 Apr 2004 14:00:12 +0100
From: "Jonathan Fleming" <email@hidden>
To: email@hidden, email@hidden,
email@hidden, email@hidden
CC: email@hidden
Subject: Re: An Apps Session from a Framework [SOLUTION]
Date: Fri, 30 Apr 2004 13:38:06 +0100
Hello Guys,
thanks to you all for your responses on this, the options that you left
available to me was an eye opener as well as a head scratcher....
I chose to go with Chuck's implementation as this suits and covers other
classes that I want to put in the framework that have references to a
Session:
Chuck Hill, email@hidden, wrote:
Put a WOSession sub-class in the framework, say UserSession. Make this
implement setUser, setEntry etc etc. Cast to this session in the FW. In
the Application make Session extend UserSession instead of WOSession. Or
create an interface with setUser, setEntry etc etc. and cast to this
and have Session implement the interface.
but like Jonathan 'Wolf' Rentzsch said it's good to have other options such
as using KVC:
Session sess = (Session)session();
sess.setUser(null);
sess.setEntry(null);
sess.setUsername(null);
sess.terminate();
WOSession sess = session();
session.takeValueForKey( null, "user" );
session.takeValueForKey( null, "entry" );
session.takeValueForKey( null, "username" );
sess.terminate();
The head scratcher was me thinking why did't I simply do that which Anjo
said:
Why not do the more obvious thing and move that code to
Session.terminate()? That would mean your logout >component would be able
to call
session().terminate()
without referencing the other class.
The answer was as my number of apps are growing now, I did want to keep
copying and pasting this code in every application's Session class. But,
yes it has it's "pros" as well as it's "cons" as does most things.
And lastly, Tom Blenko said:
I've always done this by implementing a Session.logout() method which
calls Session.terminate() and >returns a WORedirect to whatever the Main
page is. Similar to what Anjo suggests. logout() is >implemented in the
Session because it isn't a separate component but it is called from
multiple pages.
I haven't done this as a separate component in a framework. If you want it
in a framework, subclass >from Session in the framework and implement
logout() there. Then subclass from that subclass in the >application (what
Chuck said).
My code does return a WORedirect to the main page, here's the class which
may be of use to others:
// Copyright ) Jonathan Fleming Sat Dec 14 09:49:53 GMT 2002
import com.webobjects.foundation.*;
import com.webobjects.appserver.*;
public class LogoutComponent extends WOComponent {
public LogoutComponent(WOContext context) {
super(context);
}
public WOComponent logOut() {
Session sess = (Session)session();
sess.setUser(null);
sess.setPassword(null);
sess.setUsername(null);
sess.terminate();
WORedirect redirect = (WORedirect)pageWithName("WORedirect");
String host = "http://"+
this.context().request().headerForKey("host");
Oops this is a mistake, I was changing things while I was posting, it should
of course be:
String host = this.context().request().headerForKey("host");
redirect.setUrl(
"http://"+host+context().urlWithRequestHandlerKey("wa", null, null) );
NSLog.out.appendln( "===\r Logout's Redirection URL: " +
"http://"+host+context().urlWithRequestHandlerKey("wa", null,
null) );
return redirect;
}
}
Cheers everyone
Jonathan :^)
posts from:
Jonathan 'Wolf' Rentzsch <email@hidden>,
Chuck Hill <email@hidden>,
Anjo Krank <email@hidden>,
Tom Blenko <email@hidden>
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