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17047973
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2013-06-11T15:26:50.780
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2013-06-11T15:26:50.780
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<p>Sounds like you have to group the instance belonging to one course by year. This could be done with a key like the following one:</p> <pre><code><xsl:key name="kCourseInstaneByYears" match="instance" use="concat(ancestor::course/uuid, '|' , year)"/> </code></pre> <p>This assume that the course/uuid is unique for courses.</p> <p>With this key you can try something like this (surly not complete but should show the idea).</p> <pre><code>?xml version="1.0" encoding="utf-8"?> <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> <xsl:output method="xml" indent="yes"/> <xsl:key name="kCourseInstaneByYears" match="instance" use="concat(ancestor::course/uuid, '|' , year)"/> <xsl:template match="/*"> <html> <body> <xsl:apply-templates select="//course" /> </body> </html> </xsl:template> <xsl:template match="course"> <xsl:variable name ="courseID" select="uuid" /> <h1> <xsl:value-of select="coursetitle" /> </h1> <xsl:for-each select="descendant::instance[generate-id() = generate-id(key('kCourseInstaneByYears', concat($courseID, '|' , year))[1])]" > <xsl:sort select="year"/> <xsl:variable name="year" select="year" /> <h2> <xsl:value-of select="$year"/> </h2> <table> <xsl:apply-templates select="key('kCourseInstaneByYears', concat($courseID, '|' , $year))" /> </table> </xsl:for-each> </xsl:template> <xsl:template match="instance" > <tr> <td> <xsl:value-of select="uuid"/> </td> <td> <xsl:value-of select="instancecode"/> </td> </tr> </xsl:template> </xsl:stylesheet> </code></pre> <p>Which will generate the following output:</p> <pre><code><html> <body> <h1>Being better at XSLT</h1> <h2>2013</h2> <table> <tr> <td>1054EDE3F28D9873</td> <td>MPW1F</td> </tr> <tr> <td>D9FC4501-F504-B560-FB8DFC3EF41C0E1F</td> <td>MPO1F</td> </tr> <tr> <td>D9FC5017-0789-16A0-C8BBD0F0BE016E6F</td> <td>MPW2F</td> </tr> <tr> <td>D9FC4963-A684-565A-5AA282A7CEC7B4CC</td> <td>MPO2F</td> </tr> </table> <h1>Being better at XML</h1> <h2>2013</h2> <table> <tr> <td>D9FC5017-0789-16A0-C8BBD0F0BE016E6F</td> <td>MPW2F</td> </tr> <tr> <td>D9FC4963-A684-565A-5AA282A7CEC7B4CC</td> <td>MPO2F</td> </tr> </table> <h2>2014</h2> <table> <tr> <td>1054EDE3F28D9873</td> <td>MPW1F</td> </tr> <tr> <td>D9FC4501-F504-B560-FB8DFC3EF41C0E1F</td> <td>MPO1F</td> </tr> </table> </body> </html> </code></pre>
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1. COBrilliant, worked exactly as required!
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