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Postnext
Ingram LeedySubject: No Topic
Author: Ingram Leedy
Date: 04 Jan 2006 02:12 PM

Hi, I have a project where I am trying to join data on an element <account> and then provide some grouping and summing.

The idea here is that I want to get the total mailbox size for each respective mailbox, plus give an organizational total and display out on a webpage.

I was thinking of using XSL to perform the query. Below is the example XML file,

<?xml version="1.0"?>
<mydata>
<mailbox>
<displayname>Chris</displayname>
<account>chris.sims</account>
<firstname>Chris</firstname>
<lastname>Sims</lastname>
<upn>chris@sims.com</upn>
</mailbox>
<mailbox>
<displayname>Mark Brown</displayname>
<account>mark.brown</account>
<firstname>Mark</firstname>
<lastname>Brown</lastname>
<upn>mark@brown.com</upn>
</mailbox>
<mailbox>
<displayname>Jim Smith</displayname>
<account>jim.smith</account>
<firstname>Jim</firstname>
<lastname>Smith</lastname>
<upn>jsmith@coloflorida.com</upn>
</mailbox>
<usage>
<account>jim.smith</account>
<size>10</size>
</usage>
<usage>
<account>mark.brown</account>
<size>20</size>
</usage>
<usage>
<account>chris.sims</account>
<size>30</size>
</usage>
</mydata>


Here is an XSL file that I hacked together as a test, but had to use XPATH 2.0 for the grouping. I wasnt able to figure out how to sum the total by group.

<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="html" encoding="UTF-8"/>

<xsl:template match="/">
<xsl:for-each-group select="/mydata/mailbox" group-by="substring-after(upn,'@')">


<xsl:for-each select="current-group()">

<!-- cache the employee's ID -->
<xsl:variable name="id">
<xsl:value-of select="account"/>
</xsl:variable>

<xsl:variable name="size">
<xsl:value-of select="/mydata/usage/size[preceding-sibling::account=$id]"/>
</xsl:variable>

<xsl:value-of select="displayname"/>
<br/>
<xsl:value-of select="substring-after(upn,'@')"/>
<br/>
<xsl:value-of select="$size"/>
<br/>

<br/>
</xsl:for-each>


<xsl:variable name="sizetotal">
<xsl:for-each select="current-group()">
<xsl:variable name="id">
<xsl:value-of select="account"/>
</xsl:variable>
<xsl:value-of select="/mydata/usage/size[preceding-sibling::account=$id]"/>
</xsl:for-each>
</xsl:variable>



<br/>
<xsl:text>Total for </xsl:text>
<xsl:value-of select="current-grouping-key()"/>
<xsl:text> group: </xsl:text>
<xsl:value-of select="count(current-group())"/>
<xsl:text> size: </xsl:text>
<xsl:value-of select="sum(number($sizetotal))"/>


<br/>
</xsl:for-each-group>
</xsl:template>
</xsl:stylesheet>



My question, is there a better way? and/or how do I get the sum of the usage? Thanks!!!

BTW -- eventually this will be used in Microsoft .NET - but seems like will need to use saxon library for xpath 2.0.
Postnext
Tony LavinioSubject: Mailbox XSLT problem
Author: Tony Lavinio
Date: 04 Jan 2006 04:42 PM
I did a little reworking, and I think I've come up with an XSLT 1
program that will do what you want. Your description was a little
vague on exactly how to group, but I'm assuming you want the total
usage by email domain.


Documentmailbox.xsl
Mailbox XSLT
Posttop
Ingram LeedySubject: Mailbox XSLT problem
Author: Ingram Leedy
Date: 05 Jan 2006 02:15 PM
Tony,

Perfect! Even works with xpath 1.0 ! Thank you for your assistance - its a good example to follow.
   
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