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From stevecam <stephen.came...@geometryit.com>
Subject Re: Using Flowscript and JXTemplates in Lenya
Date Thu, 29 Nov 2007 21:57:51 GMT

Small point of clarification to my first post, I am talking about Javascript
Flow (i.e. Flowscript), see *** below.

Andreas Hartmann wrote:
> Jörn Nettingsmeier schrieb:
>> stevecam wrote:
>>> I want to make use of Flowscript and JXTemplates from Lenya.
>>> My requirement is to create pages that incorporate data from a 
>>> database into
>>> tables and allow users to select rows in the tables, their selection 
>>> in turn
>>> affecting what they see on the next page. Flowscript seems to be a
>>> simple
>>> means to acheive this.
>>> Also, I want to make use of the JDBi javascript database interface 
>>> library
>>> in the Cocoon "Easy SQL database access" demo in the forms block.
>>> My task now is to find the best way to make use of these means in Lenya.
>>> There is some information available on how to use CForms from Lenya 
>>> but no
>>> good example of Javaflow and JXTemplates.
> *** I should have said Javascript flow (Flowscript) and JXTemplates here!
>>> Specifically I want to generate the page body (that would normally 
>>> come from
>>> an index_en.xml file (or other language version of it)) via a 
>>> JXTemplate and
>>> to have a Flowscript use (call) a modified Lenya pipeline to aggregate 
>>> the
>>> body with my sites standard header, footer, breadcrumb.
>>> I presume that for the Lenya menu highlighting and breadcrumb 
>>> functionality
>>> to work then the page must be one in the Lenya sitetree.
> That's true, but in your case the page would only be a placeholder for 
> the content which is generated dynamically by the usecase or resource 
> type module sitemap (whatever approach you choose).
>>> I'll have a go at this now and add to this thread with my results, but
>>> if
>>> anyone has already implemented such a thing I'd be happy for some help.
>> if you need flow, you should implement it as a usecase.
>> in lenya 2.0, there is a document type called "usecasedocument", which 
>> allows you to disguise a usecase (which normally has a view that's 
>> orthogonal to documents) as a plain document, which you can include in 
>> your navigation menu and handle it as if it were just another xhtml doc.
>> perhaps andreas can chime in with more details here?
> http://lenya.apache.org/docs/modules/usecasedocument/index.html
>> alternatively, you could create a custom doctype that will just contain 
>> a database query and a link to a special xslt that renders it to the 
>> desired xhtml output. i've done that for accessing an xml database, and 
>> it worked ok. i'd be glad to help out, but i only know lenya 2.0...
> I'd also use a resource type rather than a usecase because
> - it is a read-only operation
> - custom flow is required
> I guess I'd start with a resource type module (there's a tutorial in the 
> documentation) and add the stuff from the "Easy SQL database access" 
> tutorial in the module sitemap.
> -- Andreas
> -- 
> Andreas Hartmann, CTO
> BeCompany GmbH
> http://www.becompany.ch
> Tel.: +41 (0) 43 818 57 01
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