I have an xml file which i use to generate PDF document:
<?xml version="1.0"?>
<library>
<!--math books-->
<book>
<writers>Henry VANDEN, Christina MONAY, Jarod SITH</writers>
<title>The National Council of Teachers of Mathematics:
Teaching of Arithmetic (10th yearbook)</title>
<year>2002a</year>
<publisher>Hermes</publisher>
<pages>231</pages>
<field>math</field>
</book>
<book>
<writers>Ronald Staszkow</writers>
<title>Developmental Mathematics: Basic Arithmetic with
Introductions to Algebra and Geometry</title>
<year>2002b</year>
<publisher>Danaroom</publisher>
<pages>156</pages>
<field>math</field>
</book>
<book>
<writers>B.S.S, D.M.</writers>
<title>Basic Arithmetic</title>
<year>2002b 2002a</year>
<publisher>Zebruje</publisher>
<pages>120</pages>
<field>math</field>
</book>
<!--history books-->
<book>
<writers>Boray Dim, Jessica FOLGHenry VANDEN, Christina MONAY,
Jarod SITH</writers>
<title>History of europe</title>
<year>2002a</year>
<publisher>Gouray</publisher>
<pages></pages>
<field>history</field>
</book>
<book>
<writers>A.C., B.D.</writers>
<title>history example 1</title>
<year>2002a 2002b</year>
<publisher>Hermes</publisher>
<pages></pages>
<field>history</field>
</book>
<book>
<writers>corray Stakovic</writers>
<title>The 1st world war 1914-1918</title>
<year>2002a</year>
<publisher>Hermes</publisher>
<pages></pages>
<field>history</field>
</book>
</library>
First i liked to group using 'field' and it works:
<?xml version="1.0"?>
<xsl:stylesheet version="1.1" xmlns:xsl="
http://www.w3.org/1999/XSL/Transform";
xmlns:fo="http://www.w3.org/1999/XSL/Format";
exclude-result-prefixes="fo">
<!--Using Muenchian Grouping-->
<xsl:key name="byField" match="book" use="field" />
<xsl:output method="xml" version="1.0" omit-xml-declaration="no" indent="yes"/>
<xsl:template match="library">
<fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format ">
<fo:layout-master-set>
<fo:simple-page-master master-name="simpleA4"
page-height="29.7cm" page-width="21cm" margin-top="2cm"
margin-bottom="2cm" margin-left="2cm" margin-right="2cm">
<fo:region-body />
</fo:simple-page-master>
</fo:layout-master-set>
<fo:page-sequence master-reference="simpleA4"
initial-page-number="1">
<fo:flow flow-name="xsl-region-body">
<fo:block text-align="center" wrap-option="wrap"
font-size="10pt" font-weight="bold" space-after="5mm">
<fo:inline text-decoration="underline">
<xsl:text>Publication list :</xsl:text>
</fo:inline>
</fo:block>
<fo:block font-size="10pt">
<xsl:apply-templates
select="book[generate-id(.) = generate-id(key('byField', field)[1])]"
/>
</fo:block>
</fo:flow>
</fo:page-sequence>
</fo:root>
</xsl:template>
<xsl:template match="book">
<fo:block space-before=" 0.25">
<xsl:choose>
<xsl:when test="field = 'math'">
<fo:inline text-decoration="underline">
<xsl:text>Mathematics :</xsl:text>
</fo:inline>
<xsl:for-each select="key('byField', field)">
<fo:block space-before="0.25cm"
space-after="0.25cm" intrusion-displace="line" text-align="justify">
<xsl:text>-«</xsl:text>
<xsl:value-of select="title"/>
<xsl:text>», </xsl:text>
<xsl:value-of select="writers"/>
<xsl:text>. Publisher : </xsl:text>
<xsl:value-of select="publisher"/>
<xsl:text>. Pages : </xsl:text>
<xsl:value-of select="publisher"/>
<xsl:text>.</xsl:text>
</fo:block>
</xsl:for-each>
</xsl:when>
<xsl:when test="field = 'history'">
<fo:inline text-decoration="underline">
<xsl:text>Hitory :</xsl:text>
</fo:inline>
<xsl:for-each select="key('byField', field)">
<fo:block space-before="0.25cm"
space-after="0.25cm" intrusion-displace="line" text-align="justify">
<xsl:text>-</xsl:text>
<xsl:value-of select="writers"/>
<xsl:text>, </xsl:text>
<xsl:text>«</xsl:text>
<xsl:value-of select="title"/>
<xsl:text>». Publisher : </xsl:text>
<xsl:value-of select="publisher"/>
<xsl:text>.</xsl:text>
</fo:block>
</xsl:for-each>
</xsl:when>
<xsl:otherwise>
<fo:inline text-decoration="underline">
<xsl:text>Others:</xsl:text>
</fo:inline>
<xsl:for-each select="key('byField', field)">
<fo:block space-before="0.25cm"
space-after=" 0.25cm " intrusion-displace="line" text-align="justify">
<xsl:text>-</xsl:text>
<xsl:value-of select="writers"/>
<xsl:text>.</xsl:text>
<xsl:text>«</xsl:text>
<xsl:value-of select="title"/>
<xsl:text>», </xsl:text>
</fo:block>
</xsl:for-each>
</xsl:otherwise>
</xsl:choose>
</fo:block>
</xsl:template>
</xsl:stylesheet>
It gives me something like this:
Publication list :
Mathematics :
.....
.....
History :
.....
.....
Others :
.....
.....
Now i want to add grouping using 'year' , i want to get something like:
Publication list :
2002a:
Mathematics :
.....
.....
History :
.....
.....
Others :
.....
.....
2002b:
Mathematics :
.....
.....
History :
.....
.....
Others :
.....
.....
Which mean using double grouping....
I tried to do the same thing but i doesn't work... and it's more complicated...
perhaps there's another way to do that..
Please can someone help me...
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