call-xpl problem

Hello,

I'm trying to use the following statement to insert a xml node into an
instance with a xpl-call:
<f:insert nodeset="instance('extobjs-instance')"
       
origin="xxforms:call-xpl('oxf:/spil-edit/services/run-extobj-query.xpl',
('instance'), (.), ('data'))/*"
        />

When this insert is run, I get the following error:
XForms error: Input node must be an instance of Document or Element

How can I fix this?

Gts,
Ronny

-----Oorspronkelijk bericht-----
Van: Erik Bruchez [mailto:[hidden email]] Namens Erik Bruchez
Verzonden: Tuesday, January 16, 2007 11:36 AM
Aan: [hidden email]
Onderwerp: Re: [ops-users] call-xpl refresh problem

Ronny,

What I would do would be to perform xxforms:call-xpl() only upon certain

events, for example upon catching xforms-ready or some
xforms-value-changed events. Store the result of xxforms:call-xpl() into

an instance. Then have your xforms:output bound to values in that
instance.

Something like this:

<xforms:insert ev:event="xforms-ready"
         nodeset="instance('relations-instance')"
         origin="xxforms:call-xpl(...)"/>

-Erik

[hidden email] wrote:
> Hi,
>
> In our application we're editing an XForms-instance. This instance
contains some uri's which represent relations to other objects. The
metadata of these objects is stored externally (name, date, ...). Using
an xpl service, we retrieve the metadata and show these metadata in the
editing application.
>
> An example call to the xpl service is:
> <f:output class="thumbnail" mediatype="image/*"
value="xxforms:call-xpl('oxf:/spil-edit/services/run-extobj-query.xpl',
('instance'), (.), ('data'))/*/note[@ext:qual='URI']/text()" />
>
> The above example works fine, except that the service is called every
time an object gets/loses focus. How can we change this so that the
service is only called when:
> - the xforms-instance is first loaded
> - some elements are changed?
>
> If this is not possible, how can we enable caching for the
xpl-service?
>
> gts,
> Ronny

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Orbeon Forms - Web Forms for the Enterprise Done the Right Way
http://www.orbeon.com/




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Ronny,
        You cannot use xpl-call in any part of xforms bar the bind. You
should store your origin XML in another instance. If this needs to be
updated before the insert, then use a submission to update it

Hope this helps

Ryan

Ryan Puddephatt
Software Engineer

Teleflex Group - IT UK
1 Michaelson Square
Livingston
West Lothian
Scotland
EH54 7DP

e> [hidden email]
t> +44(0)1506 407 110
f> +44(0)1506 407 108

 



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Ryan,

According to Erik Bruchez an xpl-call should work in any xpath-expression. Is this a bug?

gts,
Ronny





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I guess it is, my bad, made the assumption that it was a feature :-)

Ryan Puddephatt
Software Engineer

Teleflex Group - IT UK
1 Michaelson Square
Livingston
West Lothian
Scotland
EH54 7DP

e> [hidden email]
t> +44(0)1506 407 110
f> +44(0)1506 407 108

 



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Ronny Theunissen wrote: I assume the "(.)" is causing the problem: what type of node does it
refer to? I.e., what is the context node for the xforms:insert action?

-Erik

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Orbeon Forms - Web Forms for the Enterprise Done the Right Way
http://www.orbeon.com/



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