Thread: [Dynapi-Dev] Re: Tips on debugging IOElement / SODA

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Here's a tip for debugging those IOElement and SODA server side scripts as
we translate to other languages.

I've just spent all day yesterday working on the PHP version and was writing
to Josh Ferrell about this same issue.  I guess all this talk should be on
the DynAPI-DEV list.  :-)

Basically, what I was doing, was to just output the data whereever I wanted
to look at it (in ws__Var2SODA).

    if ( $vtype == "array" )
    {
        $data = "<a$lvl>";

        // PHP code to output an array
        print_r( $v );

Then in ioelmsrv, in ws__docWrite:

                "var mySODAResponse = \"$h\";\n" .
                "$h;\n" .
                # DEBUG
                # "make.error\n" .
                "</script>\n" .

Then in your browser, you can hopefully see that there's some JavaScript
error (I use Mozilla Firebird, and from the JavaScript console, I can see an
error and click on it, and it brings up the source of the server-side
script-generated page).  Should look something like this (I added the ####
lines for clarification ####):

#### begin outputted data ####
Array
(
    [name] => PHP SODA Test
    [comment] => This Web Service was created using PHP
    [login] => ok
    [SYSCall] => 1
)
#### end outputted data  ####
Content-Type: text/html

<html>
<script language="javascript" type="text/javascript">
var ioObj,dynapi=parent.dynapi;
if (dynapi) ioObj=parent.IOElement.notify(this);
else alert('Error: Missing or invalid DynAPI library');

// DEBUG
// var mySODAResponse = "var
wsSODAResponse='<envelope><method>SYS:WebServiceConnect</method><body><a1><u
2>0</u2><r1/><u2>0</u2><r1/><u2>0</u2><r1/><u2>0</u2></a1></body></envelope>
'";
var
wsSODAResponse='<envelope><method>SYS:WebServiceConnect</method><body><a1><u
2>0</u2><r1/><u2>0</u2><r1/><u2>0</u2><r1/><u2>0</u2></a1></body></envelope>
';
// DEBUG
make.error
</script>
</html>

Now I have all the information I need to debug my script.  As you can see
above, my envelope isn't being created properly.  The data is clearly in the
array, but there's unknown / 0 in the array in the envelope.  It should
probably be returned as an object for the client-side JavaScript, although
there's only one array type in PHP for both numeric and assosciative indexed
arrays.  Hmm...  And also, you can count top-level items in an array, but
you can't use numeric indexing to reference the assosciative indexes ( for i
= 0 ;; i++ ), and you can't use assosciative indexes to reference the
numeric indexes ( foreach array as key => value ).  So we have to handle the
cases when an array might be sent with both numeric and assosciative
indexes, and use both methods, and keep count separately, and check that
they add up to the total, and put them in the proper place in the envelope.
:-\

It's ambiguous, do I create an object for the assosciate indexed elements,
and an array for the numeric?  Does that then break the original structure?
Do I create an object for the entire thing?  How does JavaScript handle
mixed arrays?  I think it allows using numeric indexing even for the
assosciative indexes, but I'm not sure.

Leif

----- Original Message ----- 
From: "Joseph Sonnier" <jso...@ni...>
To: "Leif W" <war...@us...>
Sent: Wednesday, February 18, 2004 9:15 AM
Subject: RE: Dynapi - PERL version

> I have made quite a bit of progress so far.
> I have the PERL calc working and the SODA tester working ~ dates and
> booleans need some work.  However, I have run into a problem.
>
> I did all my work so far on a windows box running IIS.
> I just pushed the stuff over the UNIX ~ FreeBSD/Apache and the same code
> fails.
>
> I put in some debugging stuff on the server side - it appears to be
writing
> out the HTML correctly.  The client side fails with a "Request timeout".
>
> Can you give me clue how I could capture what is coming back from the
> server?
> Really any advice on debugging this
>
>
> Thanks,
>   Joseph Sonnier
>
>
> -----Original Message-----
> From: Leif W [mailto:war...@us...]
> Sent: Thursday, January 22, 2004 7:03 PM
> To: jso...@ni...
> Subject: Re: Dynapi - PERL version
>
>
> Ahh yes.  I started by copying the JScript version and converting on my
> first pass.  I guess I didn't make it too far.  ;-)  The SODA version
needs
> converting, the ioelmsrv.pl version needs testing, and I think needs a new
> function added that was added to the JScript and VBScript version a while
> ago.  The PHP versions I was working on a while ago too but some are in
> various states of conversions from JScript to PHP.  I don't have the
> examples as I don't have the libraries done yet.  ;-)  More hands needed,
> definitely, as other things have drawn my attention.
>
> Leif
>
> ----- Original Message -----
> From: <jso...@ni...>
> To: <war...@us...>
> Sent: Thursday, January 22, 2004 6:42 PM
> Subject: Re: Dynapi - PERL version
>
>
> > I took a look in the CVS library and I found
> >
> > ioelmsrv.pl         -  PERL
> > ioelmsrv.soda.pl    -  This seems to be in Javascript
> >
> > Did you only do the first function?
> > Or is this a CVS issue?
> >
> > Do you having like dynapi.util.ioelement-soda-calc.php that can
> > give me an example of how to use it from the server side?
> >
> >
> >
> >
> >
> > > Hello!
> > >
> > > Thanks for your interest!  I think I sort of had a Perl version
working,
> > > but not sure, I can't remember.  Haven't touched the code in a while.
> > > The porting isn't too difficult, just need to take a look at each
> > > function (from the JScript version) and rewrite in Perl.  Think it
just
> > > needs some more hands.  Everything I have done is in CVS, so you
should
> > > be able to get it from there.  I've got Perl set up on both Linux and
> > > Win2k for testing, and the script should run on both (with just the
> > > change of the first line after the #! ), I can help with that part.
> > >
> > > Leif
> > >
> > > ----- Original Message -----
> > > From: "Joseph Sonnier" <jso...@us...>
> > > To: <war...@us...>
> > > Sent: Thursday, January 22, 2004 2:03 PM
> > > Subject: Dynapi - PERL version
> > >
> > >
> > >> I was checking to see if you have made any progress on the
> > >>
> > >> PERL version of the ioelement.srv and soda modules
> > >>
> > >>
> > >>
> > >> Is the port difficult or just needs more hands?
> > >>
> > >>
> > >>
> > >> I have started using the Dynapi SODA API on NT, but would
> > >>
> > >> like to move to a UNIX,LINUX platform.
> > >>
> > >>
> > >>
> > >> Any suggestions?
> >
> >
> >
> >
> >
>
>
>
>

Thread: [Dynapi-Dev] Re: Tips on debugging IOElement / SODA

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