Error inserting a node below the root

Hi,

I'm currently working on a metadata editor part of the ORI-OAI
(www.ori-oai.org) based on Orbeon forms. The form I am dealing with is
in charge of editing a document the structure of which is as follow :

<dcfr:dc>
    <dc:creator />
    <dc:contributor />
    etc...

</dcfr:dc>

I'm willing to insert an additional 'dc:contributor' (or whatever dc
prefixed element) to the document according to the aforementioned
structure (just below the dcfr:dc root so) but keep on coming across
the following error : 'org.orbeon.saxon.om.QNameException: Invalid
QName {}'. This error is raised in particular when the 'context' or
'nodeset' (or their combination) attributes of the 'xforms:insert'
element point to the root of the edited instance (for example
something like this :
<xforms:insert context="xxforms:instance('main-instance')
origin="xxforms:instance('instance_containing_my_node')/dc:contributor"
/>
invariably raises this exception).

I've also tried to reach the same goal through xforms:submission, xpl
and xsl, without success (same issue with a 'dc' prefixed element, I
was able to insert an unprefixed node though).

The strangest of all is that the 'xforms-widgets.xsl' stylesheet
contains xforms code that is able to perform such an insertion without
error (but I can't rely on that stylesheet for this sole insertion).

Any suggestion ?

(I'm using Orbeon Forms 3.7.0beta1, Apache Tomcat/5.5.25, JDK 1.6.0_14-b08)

Thanks,
--
Grégoire Neuville


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Answer to myself : insertion was working all right, the problem came
from an attribute of the node I was trying to insert : this attribute
is bound to the 'xsi' namespace (xsi:type is the QName of the
attribute) and the 'Invalid QName' exception was thrown because this
attribute was empty at insertion time - and now I can reproduce the
exception at initialisation time by putting an element wearing an
xsi:type empty attribute in the instance declaration. Note that xsi is
the only namespace - at least in my case - to cause such an error.

Don't know if this behaviour is expected, but hope that report helps.

2009/8/28 Grégoire Neuville <[hidden email]>:

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Grégoire Neuville


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Grégoire,

Grégoire Neuville wrote

Answer to myself : insertion was working all right, the problem came
from an attribute of the node I was trying to insert : this attribute
is bound to the 'xsi' namespace (xsi:type is the QName of the
attribute) and the 'Invalid QName' exception was thrown because this
attribute was empty at insertion time - and now I can reproduce the
exception at initialisation time by putting an element wearing an
xsi:type empty attribute in the instance declaration. Note that xsi is
the only namespace - at least in my case - to cause such an error.

Don't know if this behaviour is expected, but hope that report helps.

Yes, this error seems reasonable. When you have xsi:type="..." attributes on nodes of your instance, the XForms engine will try to interpret those to attach a type to the node, just as if you had a <xforms:bind type="..."/> for that node. So it is normal that the XForms engine isn't too happy when it can't parse the type you specify in xsi:type="..." isn't a valid type.

Alex

Ok, that makes sense now. Thanks for the explanation.

Grégoire.

2009/8/29 Alessandro  Vernet <[hidden email]>:

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Grégoire Neuville


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