Thanks very much.
b
Geoff Howard wrote:
Ben, everything looks fine. You absolutely do not need RequestGenerator in this case. Is your pipeline snippet cut and paste? See below...
Ben Munat wrote:
Still trying to get my simple post variables exercise to work. Came across the Request Generator page in the docs. Do I need to put a <map:generate type="request"/> in the pipeline for this page to get it to find the post vars? There's gotta be some config thing missing.
Here's the form html for the first input:
<form method="post" action="songs" class="searchbox"> <input size="25" name="artist" type="text"> </form>
Here's the pipeline for the page:
<map:pipeline> <map:match pattern="songs"> <map:generate type="file" src="content/songlist.xml"/> <map:transform type="xslt" src="style/songlist.xsl"> <map:paramter name="artist"
Typo: must be map:parameter not map:paramter. If that's it, make sure you change all three.
value="{request-param:artist}"/> <map:paramter name="title" value="{request-param:title}"/> <map:paramter name="style" value="{request-param:style}"/> </map:transform> <map:serialize type="html"/> </map:match> </map:pipeline>
Here's the xconf line:
<component-instance class="org.apache.cocoon.components.modules.input.RequestParameterModule"
logger="core.modules.input" name="request-param"/>
At the beginning of songlist.xsl, I have this:
<xsl:param name="artist"/> etc.
Then, in the root template I have a basic html framework and within the body tags I have:
<p>Artist: <xsl:value-of select="$artist"/></p>
This all seems very straightforward and simple. But when I type something in the artist form input box and hit submit, the page reloads and there's still nothing after "Artist:".
What am I missing?
Ben
------------------------------------------------ Ben Munat wrote:
Thanks guys. This sounds really easy. Unfortunately, I haven't been able to get it to work yet.
I checked my cocoon.xconf file and the RequestParameterModule is just as the wiki page says it should be. I edited the map:transform element of the page's pipeline to include the parameters (<map:parameter name="artist" value="{request-param:artist}"/>). And I declared the parameters as top-level params and then tried to get their values (with <xsl:value-of select="$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.
Ben
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: http://wiki.cocoondev.org/Wiki.jsp?page=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="http://www.w3.org/1999/XSL/Transform";;>
<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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