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Steve Trythall

Subject: Is this possible with XSLT? HELP!!
Author: Steve Trythall
Date: 24 Aug 2004 08:42 AM

I am really struggling to see how to do this with XSLT.
Do I need to resort to Java or is there a neat XPATH & XSLT
mechanism for this?

I have a document with a list of parts followed by a list of assemblies
that the parts potential may be in. The assemblies hold a ref to the parts.
For example, 3 wires, 2 in an assembly, 1 not:

<parts>
<wire id="1" name="WIRE1">
<property name="PartNumber" val="PartABC"/>
</wire>
<wire id="2" name="WIRE2">
<property name="PartNumber" val="PartABC"/>
</wire>
<wire id="3" name="WIRE3">
<property name="PartNumber" val="PartABC"/>
</wire>
<assembly name="my-assembly">
<assemblyelement ref="1"/>
<assemblyelement ref="2"/>
</assembly>
</parts>

I need to create a bill of materials that lists the occurences of the
parts either within assemblies or on their own. For example:

<BOM>
<wire partnumber="PartABC" quantity="1"/>
<assembly>
<wire partnumber="PartABC" quantity="2"/>
</assembly>
</BOM>

I can count the total number of wires with a particular part number, eg
count(//property[@name='PartNumber'and @val='PartABC']). However, I need
to do this in the context of an assembly.

Suggestions will be heartily recommended!

Steve

Ivan Pedruzzi

Subject: Is this possible with XSLT? HELP!!
Author: Ivan Pedruzzi
Date: 25 Aug 2004 02:33 AM

Hi Steve,

This was an interesting multi-level grouping problem.
I put together a solution that I hope you will find useful and generic enough to be extendable.

Ivan

wire.xsl

wire.xml

Steve Trythall

Subject: Is this possible with XSLT? HELP!!
Author: Steve Trythall
Date: 01 Sep 2004 10:10 AM

Ivan,
you are an XSLT god!! Thanks for this - stepping through its execution
taught me loads about doing multi-level grouping.

There was a problem with stylesheet. You weren't able to correctly count
the wires which weren't in an assembly. However, I copied the technique
you used for assemblies and that worked a treat.

Hearty thanks!

Steve

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