On Tuesday 7 February 2006 2:04 pm, Robert Koberg wrote:
> I was just curious if this needs to be dynamic. Couldn't you pregenerate
> all these things? This is what we do for our CMS. CMS users select
> layouts for pages (or falls back to an ancestor that had a layout
> defined). Several content pieces or XML components can be assigned to
> defined regions on a page. CMS users can choose things at the folder
> level like should a snailtrail or paging information show. We use XML
> configuration, content and XSL to transform to a static file. That file
> can be a velocity page, just as much as possible is pregenerated.
>
> I guess in other words, it sounds like you want to build a CMS.

well, I think we would certainly like this to be a part of a broader CMS 
project.

At present we do almost exactly what you do: we use XSL to transform XML - 
first into 'xml snippets' (that roughly correspond to the content 'entities' 
we would want to create Velocity Tools for), then into a static HTML files. 
Subsequently, Velocity is used to pull these static HTML files in to various 
points on a page.

What we want to do is use Velocity to overcome the problems inherent to this 
approach; which are:
1. If the design or layout of things changes, or even if we just change the 
content a little, we have to 're-rip' stuff (run through the XSLs). With the 
amount of content we have, and the frequency of changes, this is a burden.

2. Authoring XSLs requires a certain expertise and knowledge of the XML 
formats we use; authoring Velocity templates requires very little. We can 
produce XHTML Velocity templates very quickly which produce 
standards-compliant, accessible code. However, we hit a bottleneck (and a 
significant source of errors) when parts (or all) of these templates need to 
be written as XSLs.

3. As with most organisations, our design team is responsible for all the 
HTML, CSS, Javascript etc that is used to display pages under normal 
circumstances; and our development team is responsible for everything else. 
The static-file approach you mention requires extensive interaction between 
these departments that is a source of delays and errors.

What we need to do is get rid of the stage where XSLs are producing HTML. By 
making Velocity Tools that retrieve data associated with content 
'entities' (whether from 'xml snippets' or a database or wherever) and insert 
this into the context in a standardised, pre-agreed manner, rebuilding, xsl 
editing, and inter-departmental coopertation is not necessary every time 
there is a change in the appearance of a site etc ...

So, yes - it is certainly related to content management, but Velocity Tools in 
themselves would not be a CMS! :D

Chris

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