This is the mail archive of the
xsl-list@mulberrytech.com
mailing list .
Re: Re: Dynamic Filter Menus
- To: xsl-list at lists dot mulberrytech dot com
- Subject: Re: [xsl] Re: Dynamic Filter Menus
- From: brian dot witgen at marconi dot com
- Date: Fri, 26 Oct 2001 16:56:34 -0500
- Reply-To: xsl-list at lists dot mulberrytech dot com
Solution one looks like the best way to go , but unfortunately Im not up to
speed on DOM. Im assuming your solution is something like using
"xsl:script" with javascript outside the templates and before I create the
indexes and then use the function in the index creation. According to
w3.org, I should be able to use "xsl:script", but the tag isnt recognised.
I must be way off. Can you pass me a little more info about the
javascript/DOM solution. Im continuing to look for info/examples but not
finding too much.
Thanks for your help.
Dimitre Novatchev <dnovatchev@yahoo.com>@lists.mulberrytech.com on
10/26/2001 11:59:09 AM
Please respond to xsl-list@lists.mulberrytech.com
Sent by: owner-xsl-list@lists.mulberrytech.com
To: xsl-list@lists.mulberrytech.com
cc:
Subject: [xsl] Re: Dynamic Filter Menus
> ....and with those entries, I have created 3 keys based on the vendor,
category,
> and version:
>
> <xsl:key name="venkey" match="entry" use="@vendor" />
> <xsl:key name="catkey" match="entry" use="@category" />
> <xsl:key name="verkey" match="entry" use="@version" />
>
> The menus are a unique list of the vendors, categories, or versions to
> select. I dont have any probelm with getting the initial unique list when
> no filters have been selected yet. I am trying to make the menus work in
> such a way that when one filter is selected, the other two menus that do
> not have a filter selected will show a unique list of only those values
> that match the selected filter.
>
> Example: With the entries above, if I choose version 2.9 as a filter,
then
> only "newmanufacturer" will show up in the vendor menu (once being
unique)
> and "gorycat2" and "gorycat3" will both show up in the category menu.
>
> I have an xml file that is updated with the selected filter for each menu
> through javascript and pulled into the template as parameters:
>
> <xsl:call-template name="filtermenus">
> <xsl:with-param name="pven" select
="/docs/vendorfilter" />
> <xsl:with-param name="pcat" select
="/docs/categoryfilter" />
> <xsl:with-param name="pver" select
="/docs/versionfilter" />
> </xsl:call-template>
One solution is (because you're passing parameters from javascript) just to
update
the definitions of the "xsl:key" -s using DOM before performing the
transformation:
<xsl:key name="venkey" match="entry[fExp1 and fExp2 and fExp3]" use="
@vendor" />
<xsl:key name="catkey" match="entry[fExp1 and fExp2 and fExp3]" use="
@category" />
<xsl:key name="verkey" match="entry[fExp1 and fExp2 and fExp3]" use="
@version" />
Another solution is to construct an RTF (and convert it to a node-set)
containing
only the "entry" elements that satisfy the filters. Then use the key()
function on
this document tree. Assuming that the "entry" elements are children of the
current
node:
<xsl:variable name="vFiltered">
<xsl:copy-of select="entry[fExp1 and fExp2 and fExp3]"/>
<xsl:variable>
<xsl:variable name="vFilteredEntries" select="xx:node-set($vFiltered)"/>
<xsl:for-each select="$vFilteredEntries">
<xsl:variable name="uven" select="entry[generate-id()
= generate-id(key('venkey',
@vendor)[1])]"/>
<xsl:variable name="ucat" select="entry[generate-id()
= generate-id(key('catkey',
@category)[1])]"/>
<xsl:variable name="uver" select="entry[generate-id()
= generate-id(key('verkey',
@version)[1])]"/>
<!-- Do whatever is necessary with the above 3 variables here -->
</xsl:for-each>
Here the "xx" prefix must be associated with the namespace in which the
vendor-supplied extension function node-set() is defined/implemented.
Hope this helped.
Cheers,
Dimitre Novatchev.
__________________________________________________
Do You Yahoo!?
Make a great connection at Yahoo! Personals.
http://personals.yahoo.com
XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list