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Re: Invitation to contribute examples

From: Jérôme Nègre <jerome.negre@e-xmlmedia.fr>
Date: Thu, 10 Jan 2002 13:11:09 +0100
Message-ID: <00ba01c199cf$e41cb090$630aa8c0@fischer>
To: "Roland Merrick" <roland_merrick@uk.ibm.com>
Cc: "Steven Pemberton" <steven.pemberton@cwi.nl>, <www-forms@w3.org>
> Greetings, things are not as bad as people seem to be implying here.

I wonder who you're talking about ?
I have a few remarks on the *draft*, so I'm saying them. Once it'll be a
recommendation, it'll be too late.

<snip>
> I know this doesn't fix the cross model issue that you have recognised but
> is does reduce the number of practical, rather than theoretical,
situations
> where the form designer might have had to resort to two models.

In my example, everything was inline and made simple to be concise.
Let's go for a real-life, pratical example. I hope you'll like it.

Let's say I'm running an e-commerce site.
I have a XML catalog at http://mysite.com/catalog.xml.
Since my customers can save their basket between sessions, the current
basket of a customer is available at http://mysite.com/basket.xml
(identification being made with the help of cookies or whatever).
Of course, my form needs some working variables.
I might end up with something like that:

<html>
 <head>
  <xform:model id="catalog">
   <xform:instance xlink:href="http://mysite.com/catalog.xml"/>
...
  <xform:model id="basket">
   <xform:instance xlink:href="http://mysite.com/basket.xml"/>
...
  <xform:model id="working_variables">
   <xform:instance>
    ...
   </xform:instance>
...
</html>

So, this is a practical situation, how do you rewrite it with only one model
? Of course, it isn't allowed to write a server-side script, you must use
pure XForms.

Regards,
Jérôme
Received on Thursday, 10 January 2002 07:11:41 GMT

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