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From Upayavira ...@upaya.co.uk>
Subject Re: JX node not showing
Date Tue, 30 Dec 2003 07:09:03 GMT
Christopher Oliver wrote:

> You're missing a closing "}" in the forEach:
>
> <jx:forEach select="#{test/music/arrangements/arrangement">

How embarassing. I'd tried it in three different situations, and must 
have copied the code each time with the error :-( Next problem was I was 
looking for title, when I'd renamed it titlex. How can I have spent two 
weeks struggling with something so simple?

Oh well. All works now. Many thanks for your help.

Regards, Upayavira

>
> Upayavira wrote:
>
>> Christopher Oliver wrote:
>>
>>> I tried this and it seems to work fine - except for 
>>> #{query/music/title/text()} which caused a NullPointerException. I 
>>> just checked in a fix for that. 
>>
>>
>>
>> I just updated to the latest CVS, and your fix has made text() work. 
>> Thanks.
>>
>>> What version are you using? Here's what I got:
>>>
>>> #{query/music/title} => Song
>>
>>
>>
>> Hmm. Still not working. So, I've set up a more thorough test 
>> environment, and let me detail again what's going on:
>>
>> Sitemap:
>>     <map:match pattern="test">
>>       <map:call function="test"/>
>>     </map:match>
>>        <map:match pattern="test-pipe">
>>       <map:generate type="jx" src="xml/test.jx"/>
>>       <map:serialize type="xml"/>
>>     </map:match>
>>
>> Flow:
>> function test() {
>>  var builder = 
>> Packages.javax.xml.parsers.DocumentBuilderFactory.newInstance().newDocumentBuilder();

>>
>>  var test = builder.parse(new 
>> java.io.File("d:/documents/cocoon/tuneballoon/site/xml/test.xml").toURL().toExternalForm());

>>
>>  print ("Test node:" + test.getDocumentElement().getNodeName());
>>  cocoon.sendPage("test-pipe", {"test": test});
>> }
>>
>> JXTemplate (xml/test.jx):
>> <?xml version="1.0" encoding="UTF-8"?>
>> <page xmlns:jx="http://apache.org/cocoon/templates/jx/1.0">
>>  <content>
>>      TITLE:{#{test/music/title}}
>>    TITLE2:(#{test/music/title/text()})
>>    <table>
>>      <jx:forEach select="#{test/music/arrangements/arrangement">
>>         <tr><td>TITLES:#{./title}</td></tr>
>>      </jx:forEach>
>>    </table>
>>  </content>
>> </page>
>>
>> Sample XML (xml/test.xml):
>> <music>
>>  <title>Song</title>
>>  <arrangements>
>>    <arrangement>
>>      <title>Arr1</title>
>>    </arrangement>
>>    <arrangement>
>>      <title>Arr2</title>
>>    </arrangement>
>>  </arrangements>
>> </music>
>>
>> Now, if in the within the jx:forEach I do #{.}, I get 
>> 'TITLES:org.apache.cocoon.generation.JXTemplateGenerator$Expression@177ff35'. 
>>
>>
>> If I do #{./title}, I get:
>> file:/d:/documents/cocoon/tuneballoon/site/xml/test.jx:9:35:org.apache.commons.jxpath.JXPathException:

>> No pointer for xpath: ./title
>>
>> If I do #{./title/text()}, I get:<tr><td>TITLES:</td></tr>,
i.e. 
>> nothing back.
>>
>> For the first two jxpaths, I get 'Song' for 
>> #{test/music/title/text()}, correctly, but <title>Song</title> for 
>> #{test/music/title}.
>>
>> Perhaps you could send me the files for your working version, and I 
>> can see if I can get them to work here?
>>
>> Thanks for your help.
>>
>> Regards, Upayavira
>>
>>>
>>> <jx:forEach select="#{query/music/arrangements/arrangement}">
>>> title: #{./title},
>>> </jx:forEach>           => title: Arr1, title: Arr2
>>>
>>> Regards,
>>>
>>> Chris
>>>
>>>
>>> Upayavira wrote:
>>>
>>>> I've got two problems with JXTemplateGenerator. To start with, 
>>>> here's an XML:
>>>>
>>>> <music>
>>>>  <title>Song</title>
>>>>  <arrangements>
>>>>    <arrangement>
>>>>      <title>Arr1</title>
>>>>    </arrangement>
>>>>    <arrangement>
>>>>      <title>Arr2</title>
>>>>    </arrangement>
>>>>  </arrangements>
>>>> </music>
>>>>
>>>> 1) If I call the page with this in a DOM, with the name 'query', if 
>>>> I do #{query/music/title}, it returns <title>Song</title>, not

>>>> 'Song'. #{query/music/title/text()} doesn't return anything, 
>>>> neither does string() or node().
>>>>
>>>> 2) If I use
>>>> <jx:forEach select="#{query/music/arrangements/arrangement">
>>>>       <tr><td>title: :#{./title}</td></tr>
>>>> </jx:forEach>
>>>>
>>>> It shows one 'title:' heading, not two. But #{./title} returns 
>>>> nothing. Everything I've tried still returns nothing.
>>>>
>>>> Any pointers?
>>>>
>>>> Thanks, Upayavira
>>>


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