[Xerte] How to use the judge function correctly

[Dave Burnett]

In the last response. :-)

Subject: RE: [Xerte] How to use the judge function correctly
Date: Wed, 18 Feb 2009 18:19:21 +0000
From: Julian.Tenney at nottingham.ac.uk
To: xerte at lists.nottingham.ac.uk










responses is initialised to an empty array when the interaction class is initialised. So the instance must exist. It may or may not have had responses added to it yet, or all the responses added - where is the script that tries to address them?



From: xerte-bounces at lists.nottingham.ac.uk on behalf of Julian Tenney
Sent: Wed 18/02/2009 18:09
To: Xerte discussion list
Subject: RE: [Xerte] How to use the judge function correctly




I thought the same thing...



From: xerte-bounces at lists.nottingham.ac.uk on behalf of Dave Burnett
Sent: Wed 18/02/2009 18:08
To: Xerte list
Subject: RE: [Xerte] How to use the judge function correctly



I could test that, but since I got 0 instead of Undefined for the length query, I assumed the rest of the objects had to exist.




Subject: RE: [Xerte] How to use the judge function correctly
Date: Wed, 18 Feb 2009 18:02:25 +0000
From: Julian.Tenney at nottingham.ac.uk
To: xerte at lists.nottingham.ac.uk





does it exist when you try and get at it?
 
debug(question) ?? undefined??



From: xerte-bounces at lists.nottingham.ac.uk on behalf of Dave Burnett
Sent: Tue 17/02/2009 16:26
To: Xerte list
Subject: RE: [Xerte] How to use the judge function correctly



Hmm.

My interaction (id question) has 4 responses with names, id's, correct set to 1.

If I debug:
question.responses.length

I get 0






Subject: RE: [Xerte] How to use the judge function correctly
Date: Tue, 17 Feb 2009 15:17:15 +0000
From: Patrick.Lockley at nottingham.ac.uk
To: xerte at lists.nottingham.ac.uk


Hello
 
I don't know how this function works, but I can possibly help as thus
 
INTERACTION.prototype.judge = function() {
 //check that each response whose correct is not undefined
 //has the same status as correct
 for (var i = 0; i<this.responses.length; i++) {
  if (this.responses[i].correct != undefined) {
   //trace(this.responses[i].correct +" " +this.responses[i].status);
   if (this.responses[i].correct != this.responses[i].status) {
    //doesn't match - user cannot have matched all correctly
    return false;
   }
  }
 }
 return true;
};
 
That is the flash source code of the function, so it looks like you need to set responses for the interactions for a judge to work.
 
Pat




From: xerte-bounces at lists.nottingham.ac.uk [mailto:xerte-bounces at lists.nottingham.ac.uk] On Behalf Of Peter Huppertz
Sent: 17 February 2009 15:07
To: xerte at lists.nottingham.ac.uk
Subject: [Xerte] How to use the judge function correctly


Hi List, 

another beginner's question. Imagine the following structure: 
-- page 1 
---- interaction: id=question1 
-------- button 1: correct=0 
-------- button 2: correct=0 
-------- button 3: correct=1 
-- page 2 
---- script: question1.judge() 

The script returns undefined, regardless of what the user clicks. I also tried false and true instead of 0 and 1. What's wrong? 

Peter Huppertz


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