Re: [xsl] looping in xslt

[Jeni Tennison <jeni@xxxxxxxxxxxxxxxx>]

Hi Joeri,

> to find these unique dates i use
> <xsl:key name="mydates" match="date" use="value"/>
> and to loop 3 times i use.
> <xsl:for-each select="/root/rec/date[generate-id() =
> generate-id(key('mydates',value)[1])]">
>
> I need to loop multiple times so i repeat the "for-each" multiple
> times in my code. Is there a way to avoid this. It takes a long time
> to find all the unique dates again and again.

Store the unique dates in a variable, and then do the <xsl:for-each>
selecting the variable:

  <xsl:variable name="unique-dates"
    select="/root/rec/date[generate-id() =
                           generate-id(key('mydates', value)[1])]" />
  <xsl:for-each select="$unique-dates">
    ...
  </xsl:for-each>
  <xsl:for-each select="$unique-dates">
    ...
  </xsl:for-each>
  <xsl:for-each select="$unique-dates">
    ...
  </xsl:for-each>

> Can i store a count <xsl:for-each
> select="count(/root/rec/date[generate-id() =
> generate-id(key('mydates',value)[1])])"> in a variable and use this
> in a loop?

You can, but I'm not sure that you want to unless you want to output
the number of unique dates?

Cheers,

Jeni

---
Jeni Tennison
http://www.jenitennison.com/