[xsl] Dynamic Sorting - More parametric

[Cristobal Galiano Fernandez <c dot galiano at ua dot es>]

More parametric.

I need use two or (generaly) more columnes to sort. I tented some ways but
unsucessfully.

Can any do that

Cristóbal galiano Fdez

<root>
    <sort>
       <col id="name" />
       <col id="age" type="number"  order="descending"/>
    </sort>
    <data>
         <person><name>Bob</name><age>21</age></person>
         <person><name>Van</name><age>1</age></person>
         <person><name>Jim</name><age>63</age></person>
         <person><name>Van</name><age>2</age></person>
         <person><name>Gus</name><age>55</age></person>
         <person><name>Van</name><age>18</age></person>
         <person><name>Van</name><age>4</age></person>
         <person><name>Sam</name><age>32</age></person>
         <person><name>Don</name><age>39</age></person>
         <person><name>Ron</name><age>33</age></person>
         <person><name>Van</name><age>10</age></person>
    </data>
</root>

"Diamond, Jason" escribió:

> Hi, Mark.
>
> The select attribute doesn't allow attribute value templates. But if all
> you're sorting by is the contents of a dynamically specified child element
> then you can use the local-name function to match against your variable.
>
> <xsl:stylesheet version="1.0"
> xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
>
> <xsl:output method="html" indent="no"/>
>
> <xsl:template match="/">
>   <xsl:apply-templates/>
> </xsl:template>
>
> <xsl:template match="root">
>   <xsl:apply-templates select="data">
>     <xsl:with-param name="sortexpression" select="sortby"/>
>   </xsl:apply-templates>
> </xsl:template>
>
> <xsl:template match="data">
>   <xsl:param name="sortexpression"/>
>   <xsl:apply-templates select="person">
>     <xsl:sort select="*[local-name()=$sortexpression]"/>
>   </xsl:apply-templates>
> </xsl:template>
>
> <xsl:template match="person">
>   <xsl:value-of select="name"/>
>   <xsl:text>, </xsl:text>
>   <xsl:value-of select="age"/>
>   <br />
> </xsl:template>
>
> </xsl:stylesheet>
>
> All I changed was the select attribute on the sort element.
>
> Hope this helps,
> Jason.
>
> > -----Original Message-----
> > From: Mark Swardstrom [mailto:mark@nimble.com]
> > Sent: Monday, April 02, 2001 10:59 AM
> > To: 'XSL-List@lists.mulberrytech.com'
> > Subject: [xsl] Dynamic Sorting - Using a variable to
> > determine the sort
> > select e xpression
> >
> >
> > Hi - I'm trying to dynamically sort a list based on the value
> > of an element
> > in my xml document.  Ideally, I'd be able to pass this value
> > to the xsl:sort
> > element in the xsl document to determine the sort criteria.
> > In the example
> > below, "sortby" could have the value "name" or "age".
> >
> > Here's the XML:
> >
> > <root>
> >       <sortby>name</sortby>
> >       <data>
> >               <person><name>Bob</name><age>21</age></person>
> >               <person><name>Jim</name><age>63</age></person>
> >               <person><name>Gus</name><age>55</age></person>
> >               <person><name>Van</name><age>18</age></person>
> >               <person><name>Sam</name><age>32</age></person>
> >               <person><name>Don</name><age>39</age></person>
> >               <person><name>Ron</name><age>33</age></person>
> >       </data>
> > </root>
> >
> >
> > And here's the XSL I tried (it doesn't work, but you'll see
> > what I'm trying
> > to do).  I also tried curly braces in the xsl:sort select tag
> > to evaluate
> > the sortexpression string as an expression, but no luck.  I understand
> > that's not the intended use of the curly brackets, but gave it a shot.
> >
> >
> > <xsl:stylesheet version="1.0"
> > xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
> >
> > <xsl:output method="html" indent="no"/>
> >
> > <xsl:template match="/">
> >       <xsl:apply-templates/>
> > </xsl:template>
> >
> > <xsl:template match="root">
> >       <xsl:apply-templates select="data">
> >               <xsl:with-param name="sortexpression" select="sortby"/>
> >       </xsl:apply-templates>
> > </xsl:template>
> >
> > <xsl:template match="data">
> >       <xsl:param name="sortexpression"/>
> >       <xsl:apply-templates select="person">
> >               <xsl:sort select="$sortexpression"/>
> >       </xsl:apply-templates>
> > </xsl:template>
> >
> > <xsl:template match="person">
> >       <xsl:value-of select="name"/>
> >       <xsl:text>, </xsl:text>
> >       <xsl:value-of select="age"/>
> >       <br />
> > </xsl:template>
> >
> > </xsl:stylesheet>
> >
> >
> > If I can't do this, I find I have to write a bunch of xsl:if
> > clauses and
> > that solution doesn't scale and results in bulky code.
> >
> > Thanks ahead of time for your thoughts.
> >
> > Mark Swardstrom
> > Nimble Technology
> >
> >
> >  XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list
> >
>
>  XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list


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