Thread: RE: [deng-talk] Deng and xforms questions

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Wonderfull thanks, that clears most things up.  I do like DENG because it is
quite lightweight,  my webapp with axis web services, eXist xmldb, and a few
other 3rd party components was already getting a  little heavyweight so I
sort of like how DENG was with just a few pages.  I managed to generate the
xforms dynamically and let DENG at it.

I could probably work around most of the things you mentioned, but the one I
think I would need is that setValue on a 2nd instance.  That way I could
have the full xml instance be first and then a second instance of what the
user was editing.  The setValue you have I think would work, but requires a
"click" hence a button which I really don't want.

Okay I guess I will wait around till the next DENG, until then I will look
into other things like the heavier chiba or orbeon.

Doubt I could help much; probably like everybody else I am quite busy.  And
to be honest I don't know FLASH at all, but I guess if you wanted any kind
of XML/XPATH/XQuery type help then maybe I can look at a few things.  If you
told me where to actually look for all the source code, so far I have not
looked at any files with DENG.

Cheers,
Kevin

-----Original Message-----
From: Stefano Debenedetti [mailto:st...@de...]
Sent: 06 June 2005 15:04
To: KevinBenson
Cc: Deng-Talk
Subject: Re: [deng-talk] Deng and xforms questions

Hi Kevin, thanks for using Deng  and for your feedback :-) answers inline:

KevinBenson ha scritto:
> I am a little new to all this, but starting to figure out xforms and Deng.
> I am experimenting with Deng at the moment and would like to use it for my
> xforms.  I seem to be having some problems and they really seem quite
basic,
> so I am not sure what I am doing wrong.  Many Thanks in advance for your
> help in replying to this:
> Below I put down a subsection of my model and input controls.
>
> Problem 1 - Binding:
> I can't seem to get the most basic binding working.  Such as having an
> element be required.  The form is always submitted even if I blank out the
> text box.

Deng doesn't support model item properties at all, so no relevant, no
required, no constraint and so on...

> Confirmation:
> Can you please confirm that your instance document needs to have all the
> elements in there that match your form controls?  Quite typically I have a
> lot of elements that are optional in the schema hence they might not be in
> the instance document, from what I can tell I can have a form control, but
> it is ignored because it is not in the instance document and never sent
when
> I hit submit.  Is there a way to have this work (maybe using relevant)
where
> I can submit data and have it show up in the xml when submitted even if it
> was not in the original instance document?

The XForms way of doing this is via the "lazy authoring" [1] (instance
creation out of form controls [2]), which is not supported by Deng..

[1] http://xformsinstitute.com/lesson1.php
[2] http://www.w3.org/TR/xforms/slice4.html#evt-modelConstruct

> setvalue:
> In the above question if I do need to have everything in the instance
> document, then I think I have a workaround by using <xforms:setvalue with
a
> 2nd instance document that will be in the model.  Can somebody give me an
> example of a setvalue for a basic input control.  And preferbly
referencing
> a 2nd instance document.  I againt tried several things to use setvalue
and
> nothing.

your setvalue should work but it is not for a couple of reasons:

1) xforms-ready is an event targetted at the model, not at the form controls
2) xforms-ready is not supported by Deng anyway :-)

while Deng has full XML-Events support, the only event actually defined is
"click", which is the wrong name for what should now be called "DOMActivate"

so that setvalue should work if you use a trigger:

<xf:trigger>
	<xf:label>click me</xf:label>
	<xf:setvalue ev:event="click" ref="......">....</xf:setvalue>
</xf:trigger>

> **side note: I have just noticed that the xforms namespace I use does not
> have the "/cr" at the end, but I suspect that does not matter.  The
controls
> seem to be rendered correctly and data is being submitted.

yes, both namespaces are supported in Deng.

I am sorry to see Deng seems to be falling short of your requirements, Deng
development is currently split between a full rewrite [3] and a port to
non-flash javascript environments (like IE or Mozilla) [4].
While the first effort AFAIK has not released any code yet, the second
offers some improvements over the old Deng: the DOMActivate event, partial
"relevant" model item property support, select controls, repeat controls
with number > 1....

Any help/patch/code/suggestion will be highly appreciated on both fronts,
thanks

ciao
ste

[3] http://wahlers.com.br/claus/blog/?p=21
[4] http://demaledetti.net/ugo/

> ----
> <?xml version="1.0" encoding="iso-8859-1" ?>
> <html xmlns:ev="http://www.w3.org/2001/xml-events"
>       xmlns:xsd="http://www.w3.org/2001/XMLSchema"
>       xmlns:xf="http://www.w3.org/2002/xforms"
>       xmlns:xforms="http://www.w3.org/2002/xforms"
>       xmlns:xs="http://www.w3.org/2001/XMLSchema"
>       xmlns="http://www.w3.org/1999/xhtml"
>       xmlns:xhtml="http://www.w3.org/1999/xhtml"
>       xmlns:vr="http://www.ivoa.net/xml/VOResource/v0.10">
> ....
>
> <xforms:model id="model1" xmlns:xforms="http://www.w3.org/2002/xforms">
> <xforms:instance id="resinstance">
> <vr:Resource
> xmlns="http://www.ivoa.net/xml/VOResource/v0.10"
> xmlns:vr="http://www.ivoa.net/xml/VOResource/v0.10"
>           xmlns:vs="http://www.ivoa.net/xml/VODataService/v0.5"
>           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>           xmlns:xs="http://www.w3.org/2001/XMLSchema"
>           updated="2004-11-20T15:34:22Z" status="inactive">
>  <title>File Manager Service Entry</title>
> <shortname/>
>  <identifier>ivo://@REGAUTHORITY@/filemanager-one</identifier>
>  <curation>
>   <publisher>testcont</publisher>
>  </curation>
> </vr:Resource>
> </xforms:instance>
>
> <xforms:submission method="post"
> action="http://localhost:8080/reg/xforms/XFormsEditEntry.jsp" id="s00"/>
>
> <!-- the instance data text tends to show up in the text box, but the
> required does not work
>      decided to add constraint to see if it makes a difference nothing.
And
> tried having the nodeset as /vr:Resource/vr:curation/vr:publisher same
> results. -->
> <xforms:bind id="pubBind" nodeset="vr:curation/vr:publisher"
> constraint="string-length(.) &gt; 10" required="true()" />
> </xforms:model>
> ...
>
> <xforms:input ref="vr:shortname">
>    <xforms:label>Short Name:</xforms:label>
> <!--
>    Tried to do a setValue in several ways sometimes up in the model area
> sometimes here.  Nothing works.
>    <xforms:action ev:event="xforms-ready">
>       <xforms:setvalue ref="vr:shortname" ev:event="xforms-ready">My
> short</xforms:setvalue>
>    </xforms:action>
>    <xforms:setvalue bind="stBind" ev:event="xforms-ready">My
> short</xforms:setvalue>
>    <xforms:setvalue ref="vr:shortname" ev:event="xforms-ready">My
> short</xforms:setvalue>
> -->
> </xforms:input>
>
>
>    <!--
>      Well the text value shows in the text box, but the constraint or
being
> required never seems to work.
>    -->
>    <xforms:input  bind="pubBind">
>       <xforms:label>Publisher:</xforms:label>
>    </xforms:input>
>
> <!--
>    Not defined in the instance document and hence cannot get this
submitted
> in the xml unless it is in the instance document.
> -->
> <xforms:input ref="vr:curation/vr:contributer">
>    <xforms:label>Contributer:</xforms:label>
> </xforms:input>
>
> ....
>
>
>
>
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