Subject: Re: [xsl] Duplicate Elimination From: Wendell Piez <wapiez@xxxxxxxxxxxxxxx> Date: Wed, 12 Mar 2014 18:09:14 -0400 |
Hi, I hate to say it, but this is nicely handled as a grouping problem: <xsl:for-each-group select="(A|B)/Date" group-by="."> <xsl:apply-templates select=".'/> <!-- applies a template to the first member of each group --> <!-- select="current-group()[1]" to be more explicit --> </xsl:for-each-group> Many grouping problems are hidden in plain sight. :-) Cheers, Wendell On Wed, Mar 12, 2014 at 5:14 PM, Martin Holmes <mholmes@xxxxxxx> wrote: > If the text content of the element is all you care about, you could do > something like this: > > <xsl:variable name="distinctDates"> > <xsl:for-each select="distinct-values(A/Date | B/Date)"> > <xsl:sort/> > <Date><xsl:value-of select="."/></Date> > </xsl:for-each> > </xsl:variable> > > <xsl:apply-templates select="$distinctDates/Date"/> > > > > > On 14-03-12 01:34 PM, Ihe Onwuka wrote: >> >> I have Date elements coming from 2 different parents. >> >> <A> >> <Date>blah</Date> >> </A> >> >> <B> >> <Date>blah</Date> >> </B> >> >> I am doing >> >> <xsl:apply-templates select="A/Date | B/Date> >> <xsl:sort select="." order="ascending"/> >> </xsl:apply-templates> >> >> and >> >> <xsl:template match="Date"> >> etc >> </xsl:template> >> >> I have noticed that when A and B have a child element of the same date >> the Date template gets fired on each occasion, whereas I only want it >> fired once >> >> I thought the union operator in the apply-templates would have the >> effect of eliminating duplicates or aren't they duplicates if they >> have the same content but come from different parents. > -- Wendell Piez | http://www.wendellpiez.com XML | XSLT | electronic publishing Eat Your Vegetables _____oo_________o_o___ooooo____ooooooo_^
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