Subject: [xsl] Using xsl:key to list unique nested values From: "Trem Stamp" <trem@xxxxxxxxxxxxxxxxxxx> Date: Tue, 8 Jan 2002 12:46:57 +1100 |
Hi all, I have an xml file with duplications of elements, which I can list uniquely fine (used the XSL example by Jenni Tennison). The xml file looks like this: <PROJECTS> <PROROW> <id>1</id> <name>Customer 1</name> <project_name>Project 1</project_name> </PROROW> <PROROW> <id>2</id> <name>Customer 1</name> <project_name>Project 2</project_name> </PROROW> <PROROW> <id>3</id> <name>Customer 2</name> <project_name>Project 1</project_name> </PROROW> <PROROW> <id>3</id> <name>Customer 2</name> <project_name>Project 4</project_name> </PROROW> <PROROW> <id>3</id> <name>Customer 1</name> <project_name>Project 1</project_name> </PROROW> </PROJECTS> I can get the listing of Unique customers Customer 1 Project 1 Project 2 Project 1 Customer 2 Project 1 Project 1 However I'm unsure as to how to only list the unique Projects within these listings. I've checked the archives and Dawsons (but couldn't find anything obvious). I've been trying to use another: <xsl:apply-templates select="../PROROW[generate-id(.) = generate-id(key('rows', project_name))]" mode="again"/> line within the first template that lists the customers, but this provides a listing of all unique Projects for each customer under each customer heading. The stylesheet I have used is: <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> <xsl:key name="rows" match="PROROW" use="name"/> <xsl:key name="rows" match="PROROW" use="project_name"/> <xsl:template match="PROJECTS"> <xsl:apply-templates select="PROROW[generate-id(.) = generate-id(key('rows', name)[1])]" mode="other"/> </xsl:template> <xsl:template match="PROROW" mode="other"> <b><xsl:value-of select="name" /></b> <xsl:apply-templates select="../PROROW[generate-id(.) = generate-id(key('rows', project_name))]" mode="again"/> </xsl:template> <xsl:template match="PROROW" mode="again"> <xsl:value-of select="project_name" /> </xsl:template> </xsl:stylesheet> I would be very grateful if someone could pointme in the direction of a working example of this in action. Trem XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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