Subject: Re: dynamic pages with URL parameters
From: Aaron Miller <amiller@xxxxxxxxx>
Date: Wed, 23 Aug 2000 11:15:29 -0700
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Ben,
Yes. The parameters passed on the url to a servlet are automatically
inserted into the XML tree result. So they can then be accessed via the XSL.
This has the same effect as creating a CGI query object in Perl or passing
params on the URL to a PHP. The code below shows storing a value from the
URL, which is represented in the "param" node of the XML, into an XSL
variable which is then used later in the page:
<xsl:variable name="max_per_page">5</xsl:variable>
<xsl:variable name="start"><xsl:value-of
select="/root/params/start"/></xsl:variable>
<xsl:variable name="end"><xsl:value-of select="number($start) +
number($max_per_page) - 1"/></xsl:variable>
Then, this code shows two ways to grab values from the URL and put them into
another URL - one using javascript (the uncommented) and one using an
attribute tag to modify a src attribute (commented code):
<?xml version='1.0'?>
<xsl:stylesheet version='1.0'
xmlns:xsl='http://www.w3.org/1999/XSL/Transform'>
<xsl:template match="/">
<HTML>
<HEAD><TITLE>Zatso Enhancements</TITLE>
<script language="Javascript" src="js/zlib.js"></script>
</HEAD>
<xsl:call-template name="EnhancementFrameset">
<xsl:with-param name="storyID">
<xsl:value-of select="/root/session/url/storyID" />
</xsl:with-param>
<xsl:with-param name="enhancementIndex">
<xsl:value-of select="/root/session/url/enhancementIndex"
/>
</xsl:with-param>
</xsl:call-template>
</HTML>
</xsl:template>
<xsl:template name="EnhancementFrameset">
<xsl:param name="storyID">0</xsl:param>
<xsl:param name="enhancementIndex">0</xsl:param>
<SCRIPT language="Javascript">
<![CDATA[var menuURL = "cs.EnhancementNav.dyn?storyID=]]><xsl:value-of
select="/root/session/url/storyID"
/><![CDATA[&enhancementIndex=]]><xsl:value-of
select="/root/session/url/enhancementIndex" /><![CDATA[";]]>
<![CDATA[var displayURL =
"cs.EnhancementDisplay.dyn?storyID=]]><xsl:value-of
select="/root/session/url/storyID"
/><![CDATA[&enhancementIndex=]]><xsl:value-of
select="/root/session/url/enhancementIndex" /><![CDATA[";]]>
function loadFrames()
{
document.frames[0].location = unescape(menuURL);
alert('going to load: '+ menuURL)
document.frames[1].location = unescape(displayURL);
}
</SCRIPT>
<FRAMESET rows="100px, *" border="0" onload="javascript:loadFrames()">
<FRAME name="EnhancementMenu" scrolling="no" marginwidth="0"
marginheight="0" frameborder="no">
<!--xsl:attribute
name="src">cs.EnhancementNav.dyn?storyID=<xsl:value-of
select="/root/session/url/storyID" />&enhancementIndex=<xsl:value-of
select="/root/session/url/enhancementIndex" /></xsl:attribute-->
</FRAME>
<FRAME name="EnhancementDisplay" scrolling="no" marginwidth="0"
marginheight="0" frameborder="no">
<!--xsl:attribute
name="src">cs.EnhancementDisplay.dyn?storyID=<xsl:value-of
select="/root/session/url/storyID" />&enhancementIndex=<xsl:value-of
select="/root/session/url/enhancementIndex" /></xsl:attribute-->
</FRAME>
</FRAMESET>
</xsl:template>
</xsl:stylesheet>
> From: "Ben C." <tatsu2000@xxxxxxxxxxx>
> Reply-To: xsl-list@xxxxxxxxxxxxxxxx
> Date: Wed, 23 Aug 2000 03:10:56 GMT
> To: xsl-list@xxxxxxxxxxxxxxxx
> Subject: dynamic pages with URL parameters
>
> AAron,
> How are you adding parameters to a URL to make dynamic pages? I know
> that you can feed parameters using the URL, but I have yet to figure out how
> to read and set them in a stylesheet. Is there any possible way I could get
> you to show me some extremly simple code for this?
>
> Thanks,
> Ben
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