The easiest way to solve this is to restructure the XML, if possible. Then your
input could look like this:
<root>
<europe>
<store location="london">
<staff>100</staff>
</store>
<store location="paris">
<staff>50</staff>
</store>
<store location="madrid">
<staff>25</staff>
</store>
</europe>
<north-america>
<store location="new york">
<staff>200</staff>
</store>
</north-america>
<asia>
<store location="tokyo">
<staff>125</staff>
</store>
</asia>
</root>
And summing any particular group is easy the the XLST sum() function:
<xsl:template match="/root">
<xsl:variable name ="staffing" select="sum(europe/store/staff)" />
<xsl:value-of select="$staffing" />
</xsl:template>
If you can't get the producer of the XML to group the data like this, we'll
have to try another approach.
--
Charles Knell
cknell(_at_)onebox(_dot_)com - email
-----Original Message-----
From: Chris Ward <cward(_at_)horizon-asset(_dot_)co(_dot_)uk>
Sent: Wed, 19 Nov 2003 16:30:25 -0000
To: <xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com>
Subject: RE: [xsl] Filtering using list of params (Subtree creation?)
Thanks Charles. However, if fear that the <xsl:choose> solution (below)
would move the problem I'm having into the other named templates.
Specifically the "euro" template which should do a SUM() on a selection
-
but not all - stores.
I'll try to better summarse my problem...
Given...
How can I do something along the lines of
SUM( staff for london, madrid, paris )
where the list of locations is dynamic (possibly in a separate XML
document).
I don't know if this makes it any clearer.
Regards,
Chris
I want to know if there is a preferred method of filtering out
multiple parts of a large XML using some form of parameter
list/document.
I suggest two possible approaches, neither of which is what
you describe:
1) Create a stylesheet for each view and select the
appropriate one based on values from the query string of the
submitting page.
2) Create a "view" parameter in single stylesheet with a
large <xsl:choose> section. Then create individual named
templates to be called based on the value of the view
parameter as determined in the <xsl:choose>. Like this:
<xsl:param name="view" />
<xsl:template match="/">
<xsl:choose>
<xsl:when test="$view = 'global'>
<xsl:call-template name="global" />
</xsl:when>
<xsl:when test="$view = 'euro'>
<xsl:call-template name="euro" />
</xsl:when>
<xsl:when test="$view = 'london'>
<xsl:call-template name="london" />
</xsl:when>
<xsl:when test="$view = 'new york'>
<xsl:call-template name="new-york" />
</xsl:when>
<xsl:when test="$view = 'paris'>
<xsl:call-template name="paris" />
</xsl:when>
<xsl:when test="$view = 'madrid'>
<xsl:call-template name="madrid" />
</xsl:when>
<xsl:when test="$view = 'tokyo'>
<xsl:call-template name="tokyo" />
</xsl:when>
<xsl:otherwise>
<xsl:call-template name="not-authorized" />
</xsl:otherwise>
</xsl:choose>
</xsl:template>
--
Charles Knell
cknell(_at_)onebox(_dot_)com - email
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