Re: [Xsltforms-support] Label element in XForms itemset

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Sorry--"entries.xml" in the test form should be changed to "data.xml" to
match the sample file (this does not affect the error).

--
Tim A. Thompson
Discovery Metadata Librarian
Yale University Library

On Wed, Oct 3, 2018 at 6:25 PM Tim Thompson <tim...@gm...> wrote:

> Alain,
>
> I would like to use xf:output/@value with an XPath expression to generate
> the contents of an xf:itemset label inside an xf:select1. This should be
> valid in XForms, unless I am mistaken. However, in XSLTForms 1.0, I get an
> error when I try to do this:
>
> TypeError: Cannot read property 'xfElement' of null
>     at XsltForms_output.XsltForms_element.init (xsltforms.js:9319)
>     at new XsltForms_output (xsltforms.js:10565)
>     at xsltforms_initImpl (itemset-label-test.xhtml:42)
>     at xsltforms_init (itemset-label-test.xhtml:76)
>
> See attached form and data file (also pasted below) to reproduce the
> issue. Thanks in advance.
>
> Form:
>
> <?xml-stylesheet href="xsltforms/build/xsltforms.xsl" type="text/xsl"?>
> <?xsltforms-options debug="yes"?>
> <?css-conversion no?>
> <html xmlns="http://www.w3.org/1999/xhtml" xmlns:xf="
> http://www.w3.org/2002/xforms">
>    <head>
>       <title>Itemset test</title>
>       <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
>
>       <xf:model>
>          <xf:instance>
>             <data xmlns="">
>                <current/>
>             </data>
>          </xf:instance>
>       </xf:model>
>
>       <xf:model id="entries">
>          <xf:instance src="entries.xml"/>
>       </xf:model>
>
>    </head>
>    <body>
>       <div class="container-fluid wrapper">
>          <xf:select1 ref="/data/current" appearance="minimal"
> incremental="true">
>             <xf:label>Select a title to compare: </xf:label>
>             <xf:itemset model="entries" ref="/data/entry">
>                <!-- Works with xf:label/@ref -->
>                <!-- <xf:label ref="title"/> -->
>                <!-- But not with nested xf:label/xf:output/@value -->
>                <xf:label>
>                   <xf:output value="substring(title, 1, 50)"/>
>                </xf:label>
>                <xf:value ref="identifier"/>
>             </xf:itemset>
>          </xf:select1>
>          <xf:output ref="/data/current">
>             <xf:label>Current title: </xf:label>
>          </xf:output>
>       </div>
>       <br />
>    </body>
> </html>
>
> Data:
>
> <?xml version="1.0" encoding="UTF-8"?>
> <data>
>     <entry>
>         <identifier>2017387103</identifier>
>         <title>Una famiglia tra Siena e l'Europa : i Montucci, 1762-1877
> /famiglia tra Siena e l'Europa : i Montucc...</title>
>     </entry>
>     <entry>
>         <identifier>2017452585</identifier>
>         <title>Tipologie e modalità della mediazione nella Grecia antica :
> le fonti letterarie /Tipologie e modalit...</title>
>     </entry>
>     <entry>
>         <identifier>2017452511</identifier>
>         <title>Identità sotto chiave : lingua e stile nel teatro di
> Saverio La Ruina /Identità sotto chiave : lingu...</title>
>     </entry>
> </data>
>
>
> Best regards,
> Tim
>
> --
> Tim A. Thompson
> Discovery Metadata Librarian
> Yale University Library
>
>