Re: Computing variables for routing

Ok, this is just me speculating a bit. I'll test in a more 
structured manner tomorrow if this doesn't solve your problem.

How about a) making a CONSTANT variable in the page with the matrix, b) 
use the submit-time perl to modify the value of the CONSTANT, and c) use 
an IFROUTE to determine where to go based on the value of the constant?

(completely untested code: )

<SURVEY TITLE="hello">

   <MATRIX ... >

   <CONSTANT NAME="dummy" VALUE="0" />

   <SUBMIT>
     {|
       $val = $session->getValue("SUBMITTED_var1");
       $val += $session->getValue("SUBMITTED_var2");

       $session->setValue("SUBMITTED_dummy",$val);
     |}
   </SUBMIT>

   <IFROUTE DEFAULT="page1.survey">
     <IF THEN="page2.survey">
       <MORETHAN VARIABLE="dummy" VALUE="10" />
     </IF>
   </IFROUTE>

</SURVEY>

I'm not sure in which order the session is updated and the submit perl is 
run. This might fail because the session hasn't been updated, but if I 
remember right it might work.

   // Joel



On Wed, 10 Oct 2007, Luca Notari wrote:

> Hi all,
>
> Unfortunately I'm not able to resolve a problem when computing
> variables...
>
> This is the case:
>
> suppose a page with a Matrix tag; the respondent has to reach a score in
> order to decide where to go
>
> If the score <=10 go to page1.survey
> if > 10 go to page2
>
> I've uset the <SUBMIT> tag , and I need the SUM of variables
>
> Do I need another separate page for computing variables? Because this
> code:
> <SUBMIT>
> {|
> my($sum)=$session->getValue("SUBMITTED_var1") +
> $session->getVAlue("SUBMITTED_var2") ....
>
> if($sum<=10) $document->SetOption("CONTINUE","page1.survey")
> doesnt work
>
>
>
>
>
Skickat av Joel Palmius <[email protected]>
till survey-discussion