Hi Frank,
the selection list can load their items from a file:
<fd:selection-list src="options.xml"/>
but it expect the file to follow a certain schema :
<fd:selection-list>
<fd:item value="a"/>
<fd:item value="b">
<fd:label>b has a label</fd:label>
</fd:item>
...
</fd:selection-list>
BUT, when cocoon reads a file (in cocoon forms, and in may other places,
basically everywhere) it does not simply opens the file and reads the
content. It uses an abstraction called Source.
A Source is a generic way of accessing something that can generate the
data you need, be it a file on the file system, a file in the web
application context, a resource (again a file) placed in a jar file, an
HTTP or FTP site, or many other things.
The way it works is simply placing the correct protocol in front of the
source specification, for example :
<fd:selection-list src="options.xml"/> // The file:/ protocol is implied
<fd:selection-list
src="http://ups.com/services/expedition-options.xml"/> // Another
company could offer selection lists for their services
<fd:selection-list src="ftp://user:[EMAIL PROTECTED]/home/user/options.xml"/>
etc.. etc..
A very important part of it is that cocoon can act as a source itself,
and that's the solution to your problem : you can write a pipe and then
call it from the selection list, for example :
<map:match="myoptions.xml">
<map:generate src="auswahl.xml"/>
<map:transform src="auswahl-to-selectionlist.xsl"/>
<map:serialize type="xml"/>
</map:match>
and then in the definition
<fd:selection-list src="cocoon:/myoptions.xml"/>
The XSL could be as simple as :
<xsl:template match="auswahl">
<fd:selection-list>
<xsl:apply-templates/>
</fd:selection-list>
</xsl:template>
<xsl:template match="option">
<fd:item value="{.}"/>
</xsl:template>
Hope this helps,
Simone
Frank MW wrote:
> Hi all,
>
> I'm trying to get the values for a selection-list from an xml - file,
> but there is not much documentation around and I haven't found a
> fitting hint yet. That's what I tried rather intuitively:
>
> <fd:field id="test" required="false">
> <fd:datatype base="string"></fd:datatype>
> <fd:label>Clause - Test</fd:label>
> <fd:selection-list src="forms/auswahl.xml" value-path="option"
> list-path="auswahl" dynamic="true"></fd:selection-list>
> </fd:field>
>
> with auswahl.xml:
>
> <auswahl>
> <option>nested clause</option>
> <option>if-clause</option>
> <option>adverbial clause</option>
> </auswahl>
>
>
> How do I have to do that? Or if there is documentation on it, could
> you provide me with the link, since I couldn't find it. What I need is
> not in here:
> http://cocoon.apache.org/2.1/userdocs/widgetconcepts/selectionlists.html
>
> since it just says:
>
> <fd:datatype base="string"/>
> <fd:selection-list src="cocoon:/mychoices.xml" dynamic="true"/>
>
> But how do I specify the path in the xml-file?
>
>
> Regards,
> Frank
--
Simone Gianni
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