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RE: [xsl] Grouping and Numbering

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Hi,
The desired output I'm after is:

<output row="1">250</output>
<output row="2">250</output>
<output row="3" />
<output row="4">300</output>

So, the <group_id> has been sorted in order and an extra row is added between
"groups" as a separator.

Thanks,
Carl

-----Original Message-----
From: Vasu Chakkera [mailto:vasucv@xxxxxxxxxxx]
Sent: 25 May 2007 12:43
To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
Subject: RE: [xsl] Grouping and Numbering



Out of the XML you gave,
<sample>
    <result>
        <details>
	  <group_id>250</group_id>
        </details>
    </result>
    <result>
        <details>
	  <group_id>300</group_id>
        </details>
    </result>
    <result>
        <details>
	  <group_id>250</group_id>
        </details>
    </result>
</sample>

Can you mail back the output you are expecting ?


Vasu
-----Original Message-----
From: Carl Radley [mailto:Carl.Radley@xxxxxxxxxxx]
Sent: Friday, May 25, 2007 2:51 PM
To: XSL List (Mulberry Tech) (E-mail)
Subject: [xsl] Grouping and Numbering

Hi,
I'm using XSLT version 1, so can't use grouping.

I need to run through a large structure that resembles:
<sample>
    <result>
        <details>
	  <group_id>250</group_id>
        </details>
    </result>
    <result>
        <details>
	  <group_id>300</group_id>
        </details>
    </result>
    <result>
        <details>
	  <group_id>250</group_id>
        </details>
    </result>
</sample>

Firstly, I need to sort the data into <group_id> order, so I use:
<xsl:apply-templates select="sample//result/details">
    <xsl:sort select="group_id" data-type="number" />
</xsl:apply-templates>

Next, within the called template, I need to loop through all the <details>
and add row numbering information but add an extra row at the end of each
group.
So hope to see:
<output row="1">250</output>
<output row="2">250</output>
<output row="3" />
<output row="4">300</output>

First problem is that, when I check "preceding::details[1]/group_id" it
refers to the original document layout and not the sorted order, so I get:
<output row="1">250</output>
<output row="2" />
<output row="3">250</output>
<output row="4" />
<output row="5">300</output>

Second problem is remembering the row count, since I need to add several
additional rows during the loop, so "position()" goes out of sync.
I've tried to call another template, passing in the <group_id> and determine
it's sorted position but have not been able to get a unique list because of
my first problem.

Hope I've made this as concise as possible.
Thanks in advance,
Carl


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