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From "Vadim Gritsenko" <>
Subject RE: DatabaseSelectAction question
Date Wed, 29 May 2002 12:50:57 GMT
> From: John Austin []
> I posted a question on cocoon-users a while ago asking for  help with
> this Action class and took the source code upstairs with me to watch
> end of the NHL playoff game (Trawna lost in overtime - hooray!).
> As I have now read the code in some depth, I would like to ask whether
> anyone has actually used this class for anything other than providing
> workload for the compile engines.
> I am reasonably certain that DatabaseSelectAction isn't useful as it
> in 2.0.1 (looks the same in 2.0.3) and would like to know whether
> anyone on cocoon-devel feels the class should be worked on.
> I would like to use it for simple table lookups which load parameters
> into the sitemap. The user-case I have in mind is where you look up a
> single row of a user profiles table and pass the user's preferences to
> various elements of the pipeline. These could be passed to
> transformations as parameters or used to construct file or path names.
> The class is very short right now but it appears to have some
> questionable structure. I suspect it is a work-in-progress so please
> don't recieve my criticism negatively. At the very least, I would like
> to add some comments to the code and thereby to the JavaDoc.

This class is supposed to select single row from a column identified by
the primary key values and populates with these values (or request
parameter's values - if present) request attributes. It could be used
with form validation action: if validation fails, present form to the
user and populate it from request attributes and database.

IIRC, it was doing this ok. As Christian pointed out, Database*Actions
are not maintained well anymore, but if you want to put some comments in
- you are welcome.


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