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Re: xtvd grouping problem (I think)
Subject: Re: xtvd grouping problem (I think)
From: Steve <subsume@xxxxxxxxx>
Date: Fri, 8 Sep 2006 17:40:53 -0400
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Hah. Wouldn't it be easy if we could just push things into keepers
lists? Unfortunately, not in XSL since variables created in a loop
can't exist outside of that loop.
This was a barrier for me. But then I learned about the key() function.
Unfortunately, I'm not the best person on the list to teach such a
thing. I tried to put together something but there are better docs
online.
-S
On 9/8/06, Bob Portnell <simply.bobp@xxxxxxxxx> wrote:
Let me clarify a little. I already have my set of programs in a
variable... call it $hitSet. So that's cool. And the bit from the sort
on down I'd already worked out. Good and good.
I need to get away from any looping based on program IDs. That's my
problem: program IDs are more fine-grained than my search item terms.
So I need to expand up, collecting up all the <schedule>s which have
the program IDs from $hitSet (and so representing each search item
discovery individually)
In pseudocode, my vision is something like
for each member of schedule ( a long list)
if this member's @program is found among the @ids in (hitSet list)
push (this member into Keepers list)
But I have no idea if that's possible in XSLT. I have a hunch it is,
and I'm just overlooking a very simple XPath function for the
assignment...
Bob P
simply.bobp@xxxxxxxxx
On 9/8/06, Steve <subsume@xxxxxxxxx> wrote:
> On 9/8/06, Bob Portnell <simply.bobp@xxxxxxxxx> wrote:
> > for each search item
> > find the set of programs which have that item
> > convert this to the set of schedule items which have those programs
> > for each in the schedule set
> > sort by time
> > report the show information.
>
> <xsl:for-each $progSet/items[@item=@search]/@prog>
> <xsl:variable name="prog" select="@prog" />
> <xsl:for-each $scheduleSet[@prog = $prog]/@prog>
> <xsl:sort select="@time" />
> <xsl:value-of select="@showInfo"
> </xsl:for-each>
> </xsl:for-each>
>
>
> > Given a variable $progSet which has a bunch of <programs> in it, how
> > do I define a $schedSet which has only <schedule> items containing
> > @program ids from $progSet?
> >
> > I've gotten as far as
> > <xsl:variable name="schedSet" select="//schedule[@program . . {sound
> > of screeching brakes}? />
>
> Pretty sure I touched on this above. Let me know.
>
> > Please excuse where I've strayed from proper XSLT vocabulary; I hope
> > my intent is clear enough despite such lapses of inexperience.
>
> No problemo. Was very well conveyed. =).
>
> -S
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