Subject: RE: [xsl] Grouping and Sorting on value inside group From: TSchutzerWeissmann@xxxxxxxxxxxxxxxx Date: Wed, 12 Jun 2002 11:16:48 +0100 |
Peter I was just thinking about this and realised that Wendell was completely right, of course. Doesn't <xsl:for-each select="(//dataset/*/*[generate-id() = generate-id(key('dataids', concat(local-name(..),@dataId)))])"> filter out most of the nodes you want because it only lets through one node per value of @dataId? But if it works... Tom > -----Original Message----- > From: TSchutzerWeissmann@xxxxxxxxxxxxxxxx > [mailto:TSchutzerWeissmann@xxxxxxxxxxxxxxxx] > Sent: 12 June 2002 10:01 > To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx > Subject: RE: [xsl] Grouping and Sorting on value inside group > > > hello Peter > > If you want to avoid using "//dataset" you could have a key like this: > <xsl:key name="dset" match="dataset" use="'all'"/> > and access it using > select="key('dataset','all')" > > > >>I finally found the answer. Your use of [@dataid = > > current()/@dataid] > > >>provided the missing clue: > > >> > > >> <xsl:for-each select="(//dataset/*/*[generate-id() = > > >>generate-id(key('dataids', concat(local-name(..),@dataId)))])"> > > >> <xsl:sort select="parent::node()/*[local-name() = > > $sortcol and > > >>@dataId = current()/@dataId]/value"/> > > > I agree with Wendell that the whole generate-id() malarkey is > redundant, but > it doesn't do the same thing as key('dataids', > concat(local-name(..),@dataId))[1] because you will get every > node that > satisfies the predicate and not just the first one. > And every node in //dataset/*/* that has a @dataid will be in > the 'dataid' > key and satisify the predicate. > > So won't this work just as well: > <xsl:for-each select="key('dataset','all')/*/*"> > > The sort looks really cunning and probably is doing all the > hard work here > ;) > > Regards, > Tom > > XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list > XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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