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From Ben Munat <>
Subject Re: basic form tutorial
Date Sat, 16 Aug 2003 06:11:11 GMT
Thanks guys. This sounds really easy. Unfortunately, I haven't been able 
to get it to work yet.

I checked my cocoon.xconf file and the RequestParameterModule is just as 
the wiki page says it should be. I edited the map:transform element of 
the page's pipeline to include the parameters (<map:parameter 
name="artist" value="{request-param:artist}"/>). And I declared the 
parameters as top-level params and then tried to get their values (with 
<xsl:value-of select="$title"/> etc.). But when I put something into a 
form field and submit it, I get nuttin... the page reloads, but the 
variables are still empty.

Might there be another configuration thing I'm missing? Or maybe I'm 
just not doing something really obvious... that's my specialty. Well, at 
least all the variable names are all lower case, and I checked 
thoroughly for typos! ;o)

Other ideas appreciated.


Geoff Howard wrote:
> Conal Tuohy wrote:
>> Ben, you can pass the form values to your XSLT something like this:
>> <map:transform src="song-list-to-html.xsl">
>>     <map:parameter         name="artist"         
>> value="{request-param:artist}"/>
>>     <map:parameter         name="title"         
>> value="{request-param:title}"/>
>>     <map:parameter         name="style"         
>> value="{request-param:style}"/>
>> </map:transform>
>> Check out the RequestParameterModule:
> And to use them in your stylesheet you need to define those three values 
> as top-level xsl:param elements:
> <xsl:stylesheet version="1.0" 
> xmlns:xsl="";>
>     <xsl:param name="artist"/>
>     <xsl:param name="title"/>
>     <xsl:param name="style"/>
> ....
> This is the same way you'd access external params sent to a 
> transformation in standard xslt from the command line.
> For this simple case, don't get bogged down in the frameworks you 
> mentioned.  When you start getting into more complex needs, they'll be 
> appropriate but they're not _necessary_ and will cloud the simplicity of 
> Cocoon while you're just getting started.
> Geoff
>>> Hello. I'm very new to Cocoon and certainly no xml/programming/web 
>>> wizard. I have an html page created by an xlst and served by cocoon. 
>>> The source xml file is a list of songs; the xslt converts the 
>>> songlist into a table and puts it on a page below a basic 
>>> header/navbar and a box with some form inputs ("artist" and "title" 
>>> text boxes and a "style" dropdown) for searching. Now the trick is to 
>>> get cocoon to reload the page -- after I've entered something in 
>>> these widgets and clicked submit -- and only display the entries from 
>>> the songlist that match this criteria.
>>> I've poked around the wiki and the docs and searched the mailing list 
>>> and, well, I'm more confused than ever. Often the material is over my 
>>> head, and oriented-towards doing something fancier than I need; form 
>>> validation, database interaction and the like.
>>> All I want to do is get the values of three post variables and fill 
>>> the table of song data accordingly. Do I turn my xml file into an xsp 
>>> and put java code in to interpret the post vars? Do I use some other 
>>> component for this (an action... or this woody thing I keep hearing 
>>> about)? Is there a tutorial out there that I've missed that has very 
>>> basic instructions on using form vars?
>>> Thanks,
>>> Ben
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