Re: [Xsltforms-support] XForms, data in a repeat from a parallel instance nodeset

[Klotz, L. <Lei...@xe...>]

It's not xf:variable, but xf:setvalue and instance() function:
 
<xf:instance id="positions">
  <data xmlns="">
    <position />
  </data
</xf:instance>
 
...
 
<xf:setvalue ref="instance('positions')/position">1</xf:setvalue>
<xf:setvalue ref="instance('positions')/position value="count(instance('main')/path/to/things/thing)-1" />
etc.
 
Then to use them:
 
<xf:input ref="path/to/things/thing[instance('positions')/position]"> ...
 
Leigh.

________________________________

From: Jason Kleban [mailto:ja...@bi...] 
Sent: Saturday, December 05, 2009 8:42 AM
To: COUTHURES Alain
Cc: xsl...@li...
Subject: Re: [Xsltforms-support] XForms,data in a repeat from a parallel instance nodeset



Good to know about the axes support.  What I've done instead is to make a new attribute for each node in my answers model, @index, and bind it to position. Then, I can reference that value with current()/@index from with the xpath to the question's index.  One downside, potentially is the addition of the @index.

How are we to reference xf:variables from within xpath or otherwise?  I have been unsuccessful.  The xsltforms parser doesn't like the '$'.  Can you give examples?

Thanks,

Jason

On Dec 5, 2009, at 5:38 AM, COUTHURES Alain <ala...@ag...> wrote:



	Jason,
	
	Axes such as "preceding-sibling::" are not yet supported by the XPath analyzer of XSLTForms, which is written with XSLT 1.0.
	
	About variables, you can create a work instance for them and use "xf:setvalue" to change their values.
	
	Thank you for testing XSLTForms!
	
	-Alain
	


		I'm still stuck on this.  I've tried:
		
		<xf:output ref="instance('questions')/question[position() = (count(current()/preceding-sibling::*) + 1)]/@text"></xf:output>
		
		
		but xsltforms keeps complaining about the preceding-sibling::* 
		
		Since I need instance('questions')/question[position() = (count(current()/preceding-sibling::*) + 1)] for several things, I'd like to be able to store this in a variable and use it throughout my repeater - however, I'm not sure how xsltforms supports this.
		
		Thanks,
		
		Jason
		
		
		
		On Fri, Dec 4, 2009 at 11:18 AM, Jason Kleban < <mailto:ja...@bi...> ja...@bi...> wrote:
		

			I have an XForm survey. I'd like to keep the survey questions in a separate xf:instance of the same model from the xf:instance that collects the answers. In one instance, a group containing 10 questions. In a second instance, a group to hold the 10 answers. The second instance will be submitted.

			I've tried using logic like the following:

			<xf:output ref="instance('questions')/question[position()]/@text"></xf:output>
			
			

			but that position() is always returning 1, because the context is of the questions xf:instance. Using the index('current-repeater') updates all 10 displayed questions to be the question at the index of the most recently focused repeat iteration.

			Is there a way to use a temporary variable in the xpath to accomplish this?

			Thanks,

			Jason 


		
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