Passing request parameters to model in an XSLT transformation

Ethan,

 

Do I understand that what you want to do is open up an Orbeon xForm with two parameters in the url, grab those parameters and send them to your service which will retrieve the xml and apply the stylesheet to present the xml back into the model for use within your xform?

 

If so, couldn't you just grab the parameters in the url when the form loads and place them in an instance within the model, call a submission (your service) which references that instance so you know have the two parameters available in your pipeline which you can access via xpath, configure an xsl processor which creates the input data href (your url string):

 

<p:processor name="oxf:xslt">

<p:input name="data" href="#instance">

<p:input name="config">

<xsl:stylesheet version="2.0">

<xsl:template match="/">

    <xsl:value-of select="concat('http://localhost:8080/solr/published/select?q=', /rootElement/q, '&amp;start=', /rootElement/start)" />

 

............

<p:output name="data" id="urlString" />

</p:processor>

 

 and then pass that output as the input for your current xslt processor.

 

<p:input name="data" href="#urlString" />

 

I have used this method for creating dynamic urls in the past with yahoo geocoding service.

 

If I misunderstood your design I apologize.  Made some assumptions.  Maybe this will help somehow.  Take care.
 

Brian Steuhl
website: http://BTMSoftwareSolutions.com
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From: Ethan Gruber <[hidden email]>
To: [hidden email]
Sent: Tue, August 3, 2010 10:45:22 AM
Subject: [ops-users] Passing request parameters to model in an XSLT transformation

I have the following bit of code.  What I'd like to do is take two request parameters from the URL and pass them to the model, which is a service that generates XML based on the query parameters that I send it.

<p:config xmlns:p="http://www.orbeon.com/oxf/pipeline"
    xmlns:oxf="http://www.orbeon.com/oxf/processors">

    <p:param type="output" name="data"/>

    <p:processor name="oxf:request">
        <p:input name="config">
            <config>
                <include>/request/parameters</include>
            </config>
        </p:input>
        <p:output name="data" id="request"/>
    </p:processor>
   
    <p:processor name="oxf:xslt">
        <p:input name="request" href="#request"/>
        <p:input name="data" href="http://localhost:8080/solr/published/select?q={}&amp;start={}"/>                       
        <p:input name="config" href="../xslt/results.xsl"/>
        <p:output name="data" ref="data"/>
    </p:processor>
</p:config>

My request parameters are 'q' and 'start.'  I tried the line         <p:input name="data" href="http://localhost:8080/solr/published/select?q={#request#xpointer(string(/request/parameters/parameter[name='q']/value))}&amp;start={#request#xpointer(string(/request/parameters/parameter[name='start']/value))}"/>, but I got a "can't parse ... in href" error in Orbeon.  Is it possible to pass request parameters in the way that I described?  Or perhaps there is another solution?

Thanks,
Ethan

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