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RE: Newbie question: dynamic output column ordering
- From: "Mike Bandy" <michael dot bandy at entegrity dot com>
- To: <xsl-list at lists dot mulberrytech dot com>
- Date: Fri, 25 Jan 2002 10:24:07 -0500
- Subject: RE: [xsl] Newbie question: dynamic output column ordering
- Reply-to: xsl-list at lists dot mulberrytech dot com
Here's the solution I came up with for my problem - but, as you can see, I
parse out the fields every time through the do_data_row template. Is there
a way that I can pre-parse the $fields variable into a tree fragment and use
that to make it quicker? What changes would you make to get the most bang
for my buck?
Thanks.
Mike Bandy
Entegrity Solutions
Columbia, MD
<?xml version="1.0"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
<!--
-->
<xsl:output method="html" indent="yes"/>
<!--
Global variables - to be passed down from Java
-->
<!-- Delimiter for fields passed to templates -->
<xsl:param name="field_delimiter" select="','"/>
<!-- Fields to be written to HTML Table, in order left to right -->
<xsl:param name="fields">source_name,date_completed,status</xsl:param>
<!--
-->
<xsl:template match="/">
<!-- Match the high level subsystems -->
<xsl:apply-templates select="report"/>
</xsl:template>
<!--
TEMPLATE report
-->
<xsl:template match="report">
<html>
<head>
<title><xsl:value-of select="$fields"/></title>
</head>
<body>
<xsl:text disable-output-escaping="yes"><table border="2"
bgcolor="yellow"></xsl:text>
<!--
Write the Table Header
-->
<tr>
<xsl:call-template name="do_header_row">
<xsl:with-param name="fields" select="$fields"/>
</xsl:call-template>
</tr>
<!--
Process each record element
-->
<xsl:for-each select="record">
<!-- Process the record element -->
<tr>
<xsl:call-template name="do_data_row">
<xsl:with-param name="fields" select="$fields"/>
</xsl:call-template>
</tr>
</xsl:for-each>
<!-- </table> Note: can't just put the endtag in because then it
makes
this non-well formed XML -->
<xsl:text disable-output-escaping="yes"></table></xsl:text>
</body>
</html>
</xsl:template>
<!--
TEMPLATE do_header_row
Recursive HTML table header row generater
-->
<xsl:template name="do_header_row">
<xsl:param name="fields" select="''"/>
<!-- -->
<xsl:variable name="field" select="substring-before( $fields,
$field_delimiter )"/>
<xsl:variable name="rest_of_fields" select="substring-after( $fields,
$field_delimiter )"/>
<xsl:choose>
<xsl:when test="contains($fields,$field_delimiter)">
<th>
<xsl:value-of select="$field"/>
</th>
<!-- Recurse -->
<xsl:call-template name="do_header_row">
<xsl:with-param name="fields" select="$rest_of_fields"/>
</xsl:call-template>
</xsl:when>
<xsl:otherwise>
<th>
<xsl:value-of select="$fields"/>
</th>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<!--
TEMPLATE do_data_row
Recursive HTML table data row generater
-->
<xsl:template name="do_data_row">
<xsl:param name="fields" select="''"/>
<!-- -->
<xsl:variable name="field" select="substring-before( $fields,
$field_delimiter )"/>
<xsl:variable name="rest_of_fields" select="substring-after( $fields,
$field_delimiter )"/>
<xsl:choose>
<xsl:when test="contains($fields,$field_delimiter)">
<td>
<strong><xsl:value-of select="*[name()=$field]"/></strong>
</td>
<!-- Recurse -->
<xsl:call-template name="do_data_row">
<xsl:with-param name="fields" select="$rest_of_fields"/>
</xsl:call-template>
</xsl:when>
<xsl:otherwise>
<td>
<strong><xsl:value-of select="*[name()=$fields]"/></strong>
</td>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
</xsl:stylesheet>
> -----Original Message-----
> From: Mike Bandy [mailto:michael.bandy@entegrity.com]
> Sent: Wednesday, January 23, 2002 9:17 AM
> To: XSL-List (E-mail)
> Subject: [xsl] Newbie question: dynamic output column ordering
>
>
> I'm new to XSL, doing HTML report generation from an XML
> file. I'm using
> xalan with Java to drive my transformations and I'd like to be able to
> specify the column ordering from my Java program. So, from
> the XML below,
> I'd like to pass in the order, left to right, of the columns
> in my HTML
> report - for example "job_id,sow_id,date_created" or
> "date_created,job_id,file_name" or whatever based on the
> user's entries into
> a Java GUI. (There's more to it than that, but this is where
> I'm stuck.)
>
> How do I pass in the ordering and then break out the
> individual fields of
> interest, then use the individual fields to extract the elements of
> interest? I can do it all hardcoded (like below), but how do
> I make it
> dynamic based on parameters from my Java program?
>
> This seems like a FAQ but I can't find an answer online -
> sorry if this is
> trivial.
>
> Thanks.
>
> Mike Bandy
> Entegrity Solutions
> Columbia Maryland
>
> ---- XSL snippet below ----
> <xsl:template match="record">
> <!--
> Output one row of the HTML table
> -->
> <tr>
> <td><strong><xsl:value-of select="job_id"/></strong></td>
> <td><xsl:value-of select="sow_id"/></td>
> <td><xsl:value-of select="date_completed"/></td>
> </tr>
> </xsl:template>
>
> ---- XML below ----
> <?xml version='1.0' encoding='UTF-8' standalone='yes'?>
> <report>
> <record>
> <job_id>3Apserver_CORVETTE_01011209642894</job_id>
> <sow_id>B0AEAA2B2C55F6A41701010691436119</sow_id>
> <date_created>2002-01-16</date_created>
> <date_completed></date_completed>
> <status>Job Failed</status>
> <file_name>CORVETTE/3Apserver_CORVETTE_0</file_name>
> <file_size>10485760</file_size>
> <source_name>Corvette</source_name>
> <destination_name> </destination_name>
> </record>
> <record>
> <job_id>102Apserver_CORVETTE_01011233583133</job_id>
> <sow_id>B0AEAA2B2C55F6A41701010691436119</sow_id>
> <date_created>2002-01-16</date_created>
> <date_completed>2002-01-16</date_completed>
> <status>Job Completed</status>
> <file_name>CORVETTE/102Apserver_CORVETTE_0</file_name>
> <file_size>10485760</file_size>
> <source_name>Corvette</source_name>
> <destination_name> </destination_name>
> </record>
> </report>
>
>
>
>
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>
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