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[xsl] Modes (was RE: [xsl] Re: Keys, IDs lookup tables.)
2012-06-11 11:01:41
I notice that you're using "mode" in this solution. Can someone point me to a
good explanation of modes, with good examples? I haven't worked much with them
and am finding them a bit confusing.
Thanks
Michele
On Wed, Jun 6, 2012 at 6:04 PM, Wendell Piez
<wapiez(_at_)mulberrytech(_dot_)com> wrote:
Daniel,
On 6/6/2012 3:31 PM, daniel whitney wrote:
OK so I came up with a solution for Part 2 of my question. Not sure
if it's the ideal, but it works:
Would Part 1 have a similar solution? Would I store the "lookup"
portion in a global variable and just call that again and again?
Basically, yes, although you will get closer to your ideal of clarity,
grace and maintainability if you refactor with templates. When doing
so, you can pass parameters to retain context.
So something like:
<xsl:template match="financialgroup">
<tr>
<td>
<xsl:value-of select="key('legend', @financiallegendcode)"/>
</td>
<xsl:apply-templates select="ancestor::financials/perioddate/period"
mode="period-cell">
<xsl:with-param name="fgroup" select="."/>
</xsl:apply-templates>
</tr>
</xsl:template>
... and to receive the call:
<xsl:template match="period" mode="period-cell">
<xsl:param name="fgroup" as="element(financialgroup)"/>
<xsl:variable name="idBase" select="@id"/>
<td>
<xsl:value-of
select="($fgroup/financial[@periodref=$idBase],'....')[1]"/>
</td>
</xsl:template>
Obviously the details aren't worked out here, and note also I'm using
an XPath 2.0 idiom to provide the fallback value when the particular
'financialgroup' element has no 'financial' value for the period.
This also fixes a bug in your code where every period covered is
assigned all values for all of them (or the first of them, if run as XSLT
1.0).
I hope this helps,
Wendell
<xsl:template match="financialgroup"> <xsl:variable
name="currentFinancial" select="financial"/> <tr> <td><xsl:value-of
select="key('legend', @financiallegendcode)"/></td> <xsl:for-each
select="ancestor::financials/perioddata/period">
<xsl:variable name="idBase" select="@id"/> <td align="right">
<xsl:choose> <xsl:when test="$currentFinancial/@periodref=$idBase">
<xsl:value-of select="$currentFinancial[@periodref=$idBase]"/>
</xsl:when>
<xsl:otherwise>
<xsl:text>....</xsl:text>
</xsl:otherwise>
</xsl:choose>
</td>
</xsl:for-each>
</tr>
</xsl:template>
On Wed, Jun 6, 2012 at 10:41 AM, daniel
whitney<dbf(_dot_)whitney(_at_)gmail(_dot_)com>
wrote:
Hi I'm having problems trying to figure out how to accomplish this
and what the best strategy might be.
It's a 2 part problem. The first with keys. The second with ID/IDREF.
1. I have an xml file with a "lookup" table at the top
(presentation/financiallegend). I want to output, as html, the
"longname" element in a table cell whether it exists in the "data"
or not. If it does exist in the data then the following cells will
contain the financial data. If it doesn't exist, the following cells
would just be empty. My XSL file outputs the rows with financial
data correctly, but does not include rows where only the "longname"
exists (no financial data).
2. The header row of the table is a row of dates, each with a unique
id. The subequent rows are financial data that have to align with
the corresponding date id. The financial data include refs to their
corresponding date ids, but of course there might be ids without a
corresponding idref. So I have no idea how get the columns to align
correctly.
This is a very basic example. The file itself has dozens of lookup
tables (not too many IDs). So I'm wondering how to accomplisth this
and what is the best strategy to keep things as clean and simple as
possible.
Does having a schema contribute to the simplicity of the XSL
somehow, in regards to keys? Or are they essentially separate entities?
Any help is, of course, greatly appreciated.
Thanks,
Dan
XML file:
<?xml version="1.0" encoding="windows-1252"?> <requesteddata>
<presentation> <financiallegend> <code>60.00</code>
<longname>Revenue - Operating/Total</longname> </financiallegend>
<financiallegend> <code>29.00</code> <longname>Total
Assets</longname> </financiallegend> <financiallegend>
<code>73.00</code> <longname>Pre-Tax Income</longname>
</financiallegend> <financiallegend> <code>2.00</code>
<longname>Made-up filler</longname> </financiallegend>
<financiallegend> <code>82.00</code> <longname>Net Income</longname>
</financiallegend> </presentation> <company> <fpid>154</fpid>
<legal>High River Gold Mines Ltd.</legal> <financials> <perioddata>
<period id="154_2011-12-31_A_A_414785">
<perioddate>2011-12-31</perioddate>
<reporttype code="A">As reported</reporttype> </period> <period
id="154_2010-12-31_A_R_414804"> <perioddate>2010-12-31</perioddate>
<reporttype code="R">Restated</reporttype> </period> <period
id="154_2009-12-31_A_A_414700"> <perioddate>2010-12-31</perioddate>
<reporttype code="A">As reported</reporttype> </period>
</perioddata> <financialdata> <financialgroup
financiallegendcode="29.00" legend="Total Assets"> <financial
periodref="154_2011-12-31_A_A_414785">1007827</financial>
<financial periodref="154_2010-12-31_A_R_414804">1102209</financial>
<financial periodref="154_2009-12-31_A_A_414700">209987</financial>
</financialgroup>
<financialgroup financiallegendcode="73.00" legend="Pre-Tax Income">
<financial periodref="154_2011-12-31_A_A_414785">231673</financial>
<financial periodref="154_2009-12-31_A_A_414700">191115</financial>
</financialgroup>
<financialgroup financiallegendcode="82.00" legend="Net Income">
<financial periodref="154_2010-12-31_A_R_414804">28999</financial>
<financial periodref="154_2009-12-31_A_A_414700">191203</financial>
</financialgroup>
<financialgroup financiallegendcode="60.00" legend="Revenue -
Operating/Total"> <financial
periodref="154_2011-12-31_A_A_414785">573949</financial>
<financial periodref="154_2010-12-31_A_R_414804">529765</financial>
<financial periodref="154_2009-12-31_A_A_414700">447635</financial>
</financialgroup>
</financialdata>
</financials>
</company>
<company>
<fpid>11</fpid>
<legal>Barrick Gold</legal>
<financials>
<perioddata>
<period id="11_2011-12-31_A_A_1">
<perioddate>2011-12-31</perioddate>
<reporttype code="A">As reported</reporttype> </period> <period
id="11_2010-12-31_A_A_2"> <perioddate>2010-12-31</perioddate>
<reporttype code="A">As reported</reporttype> </period>
</perioddata> <financialdata> <financialgroup
financiallegendcode="29.00" legend="Total Assets"> <financial
periodref="11_2011-12-31_A_A_1">1007827</financial>
<financial periodref="11_2010-12-31_A_A_2">1102209</financial>
</financialgroup>
<financialgroup financiallegendcode="82.00" legend="Net Income">
<financial periodref="11_2010-12-31_A_A_2">191203</financial>
</financialgroup>
<financialgroup financiallegendcode="60.00" legend="Revenue -
Operating/Total"> <financial
periodref="11_2011-12-31_A_A_1">573949</financial>
</financialgroup>
</financialdata>
</financials>
</company>
</requesteddata>
XSL file:
<?xml version="1.0" encoding="windows-1252"?> <xsl:stylesheet
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
version="2.0">
<xsl:output method="html" indent="yes" encoding="windows-1252"/>
<xsl:key name="legend" match="longname" use="../code"/>
<xsl:template match="requesteddata"> <xsl:for-each select="company">
<table border="1"> <tr> <td colspan="4"> <xsl:value-of
select="legal"/> </td> </tr> <xsl:apply-templates
select="financials/perioddata"/> <xsl:apply-templates
select="financials/financialdata/financialgroup[key('legend',
@financiallegendcode)]"/>
</table>
</xsl:for-each>
</xsl:template>
<xsl:template match="perioddata">
<tr>
<td> </td>
<xsl:for-each select="period">
<td>
<xsl:value-of select="perioddate"/><xsl:text> -
</xsl:text><xsl:value-of select="reporttype"/> </td> </xsl:for-each>
</tr> </xsl:template>
<xsl:template match="financials/financialdata/financialgroup">
<tr>
<td><xsl:value-of select="key('legend',
@financiallegendcode)"/></td> <xsl:for-each select="financial">
<td><xsl:value-of select="."/></td> </xsl:for-each> </tr>
</xsl:template>
<xsl:template name="presentation"/>
</xsl:stylesheet>
Output HTML example:
<table border="1">
<tr>
<td colspan="4">High River Gold Mines Ltd.</td> </tr> <tr>
<td> </td><td>2011-12-31 - As Reported</td><td>2010-12-31 -
Restated</td><td>2009-12-31 - As Reported</td> </tr> <tr>
<td>Revenue -
Operating/Total</td><td>573949</td><td>529765</td><td>447635</td>
</tr>
<tr>
<td>Total Assets</td><td>1007827</td><td>1102209</td><td>209987</td>
</tr>
<tr>
<td>Pre-Tax Income</td><td>231673</td><td> </td><td>191115</td>
</tr>
<tr>
<td>Made-up filler</td><td> </td><td> </td><td> </td>
</tr>
<tr>
<td>Net Income</td><td> </td><td>28999</td><td>191203</td>
</tr>
</table>
<table border="1">
<tr>
<td colspan="4">Barrick Gold</td>
</tr>
<tr>
<td> </td><td>2011-12-31 - As Reported</td><td>2010-12-31 - As
Reported</td> </tr> <tr> <td>Revenue -
Operating/Total</td><td>573949</td><td> </td>
</tr>
<tr>
<td>Total Assets</td><td>1007827</td><td>1102209</td>
</tr>
<tr>
<td>Pre-Tax Income</td><td> </td><td> </td>
</tr>
<tr>
<td>Made-up filler</td><td> </td><td> </td>
</tr>
<tr>
<td>Net Income</td><td> </td><td>191203</td>
</tr>
</table>
--
======================================================================
Wendell Piez
mailto:wapiez(_at_)mulberrytech(_dot_)com
Mulberry Technologies, Inc. http://www.mulberrytech.com
17 West Jefferson Street Direct Phone: 301/315-9635
Suite 207 Phone: 301/315-9631
Rockville, MD 20850 Fax: 301/315-8285
----------------------------------------------------------------------
Mulberry Technologies: A Consultancy Specializing in SGML and XML
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