for-each help

[Patrick]

Hello All,

I am new to xml and trying to make it work. I'm having a bit of trouble
with for-each loops.

I have this xml document;
<http://ocgserv.marine.usf.edu/patrick/xml/test_xml_copy.xml>

and this stylesheet:
<http://ocgserv.marine.usf.edu/patrick/xml/test_style_copy.xsl>

and would like it to look like this;
<http://ocgserv.marine.usf.edu/patrick/xml/example.html>

I can get it to read and show serial number and the green bar for each
weatherpak node or I can get it to show all of the info for one
weatherpak node, but I cant read from top to bottom and have it output
like I want. I've played around with moving the for-eachs. Can someone
tell me how to make this work correctly, or tell me there is no way it
can be done the way I want it.

Thanks,
Patrick
--
Patrick A. Smith Assistant System Administrator
Ocean Circulation Group – USF - College of Marine Science
http://ocgweb.marine.usf.edu Phone: [phone]

The trouble with doing something right the first time is that nobody
appreciates how difficult it was. - La Rochefoucauld

[Andy Dingley]

On Wed, 12 Apr 2006 14:49:17 -0400, Patrick <ps****@marine.usf.edu>
wrote:

I am new to xml and trying to make it work. I'm having a bit of trouble
with for-each loops.

This is either easy, or hard (but well-known).

Sorry, but I'm at home now and don't have an editor to hand to write the
full code. But try this

<xsl:for-each select="met_packages/weatherpak">
<tr> stuff </tr>

<xsl:for-each select="./sensors">
<tr> <xsl:value-of select="./sensor"/> More stuff </tr>
</xsl:for-each>
</xsl:for-each>

The trick is to _nest_ the for-each loops and to use the context node
"." as your starting point for the inner one.
If this doesn't work (if you have multiple weatherpak elements for the
same ID) then it becomes a grouping problem more than a nesting problem.
It's compelx and puzzling to see for the first time, but there's a
well-known solution to this called "Muenchian Grouping". Web searchign
for this (probably on Jeni Tennison's site) should sort you out.
--
Cats have nine lives, which is why they rarely post to Usenet.

[Patrick]

Andy Dingley wrote:

On Wed, 12 Apr 2006 14:49:17 -0400, Patrick <ps****@marine.usf.edu>
wrote:

I am new to xml and trying to make it work. I'm having a bit of trouble
with for-each loops.

This is either easy, or hard (but well-known).

Sorry, but I'm at home now and don't have an editor to hand to write the
full code. But try this

<xsl:for-each select="met_packages/weatherpak">
<tr> stuff </tr>

<xsl:for-each select="./sensors">
<tr> <xsl:value-of select="./sensor"/> More stuff </tr>
</xsl:for-each>
</xsl:for-each>

The trick is to _nest_ the for-each loops and to use the context node
"." as your starting point for the inner one.
If this doesn't work (if you have multiple weatherpak elements for the
same ID) then it becomes a grouping problem more than a nesting problem.
It's compelx and puzzling to see for the first time, but there's a
well-known solution to this called "Muenchian Grouping". Web searchign
for this (probably on Jeni Tennison's site) should sort you out.

Thanks Andy, I will take at look at this.

Patrick

--
Patrick A. Smith Assistant System Administrator
Ocean Circulation Group – USF - College of Marine Science
http://ocgweb.marine.usf.edu Phone: [phone]

The trouble with doing something right the first time is that nobody
appreciates how difficult it was. - La Rochefoucauld

[Joe Kesselman]

> I can get it to read and show serial number and the green bar for each

weatherpak node or I can get it to show all of the info for one
weatherpak node, but I cant read from top to bottom and have it output
like I want.

I'm not sure I understand what you mean by "read from top to bottom".

(I'm also not sure why you expect to see green when your stylesheet
explicitly says to use greys.)
--
() ASCII Ribbon Campaign | Joe Kesselman
/\ Stamp out HTML e-mail! | System architexture and kinetic poetry

[Joachim Weiß]

Patrick schrieb:

Hello All,

I am new to xml and trying to make it work. I'm having a bit of trouble
with for-each loops.

Hi Patrick,

although your problem isn't quit clear. The nested for-each loops are
always a hazard. Simply dont use them ....

use templates on your tree. A bit more wordy - but a lot more flexible
and editable

message continued after the code
----------------------------------

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:fo="http://www.w3.org/1999/XSL/Format">
<xsl:output omit-xml-declaration="yes" method="xml" />
<xsl:template match="/">
<!-- stuff for the html output -->
<xsl:element name="html">
<xsl:element name="head">
<xsl:element name="title">
xsl w/o for-each
</xsl:element>
</xsl:element>

<xsl:element name="body">
<xsl:apply-templates />
</xsl:element>
</xsl:element>
</xsl:template>

<xsl:template match="met_packages">
<!-- the met packages make a table -->
<xsl:element name="table">
<xsl:apply-templates />
</xsl:element>
</xsl:template>

<xsl:template match="weatherpak">
<!-- first theHeader -->
<xsl:element name="tr">
<xsl:element name="th">
<xsl:attribute name="align">left</xsl:attribute>
WeatherPak
</xsl:element>
<xsl:element name="th">
<xsl:attribute name="colspan">4</xsl:attribute>
<xsl:value-of select="serial_number" />
</xsl:element>
<xsl:element name="tr">
<xsl:attribute name="bgcolor">#9acd32</xsl:attribute>
<th align="left">Sensor</th>
<th align="left">Sensor Type</th>
<th align="left">Range</th>
<th align="left">Accuracy</th>
<th align="left">Resolution</th>
</xsl:element>
<xsl:apply-templates select="sensors"/>
</xsl:element>
</xsl:template>
<xsl:template match="sensors">
<xsl:element name="tr">
<xsl:apply-templates />
</xsl:element>
</xsl:template>

<xsl:template match="sensors/*">
<xsl:element name="td">
<xsl:value-of select="." />
</xsl:element>
</xsl:template>

<xsl:template match="*|@*" />
</xsl:stylesheet>

----------------------------------------

this is a bit mor flexible eg. you want to highlight the resolution just
add:

<xsl:template match="sensors/resolution">
<xsl:element name="td">
<b><xsl:value-of select="." /></b>
</xsl:element>
</xsl:template>

HIH

Jo
just add:
<xsl:template match