On Monday, Feb 3, 2003, at 14:28 Europe/London, Ugo Cei wrote:
Whoa! ;)Jeremy Quinn wrote:Hi Guys
I am looking into implementing a forms-based editor for a complex set of inter-related SQL Tables (with lots of gruesome link tables etc.).
What is currently considered the best technique to be using in Cocoon right now?
XMLForm (we don't use Beans)
OriginalDBActions (obsolete ? )
ModularDBActions (Actions are not liked by many)
SQL Inserts/Updates using SQLTransformer (maybe not capable of the job due to complexities of the multiple Table updating required ? )
SQL Inserts/Updates using ESQL TagLib (complex and difficult to maintain ? )
OutputModules+FlowScript (too unknown ? )
XMLForm + FlowScript + some persistence framework.If you don't use beans for your business entities, you should ;-).
I would not know what a 'business entity' is .... or whether our data should be one ....
The application I'm currently working on uses Hibernate for mapping objects to an RDBMS, Flow for the application flow control and XMLForm for data entry and validation.I see what you mean, but is this not merely hiding a lot of complexity that you have had to put elsewhere?
It goes something like this (this is a flowscript fragment for retrieving a business entity, having "id" as it's POID [1], into a bean, associating it with a form, posting it to the user, awaiting submission, validating and storing):
session = sessionFactory.openSession();
var entity = new BusinessEntity();
session.load(entity, id);
session.close();
var form = getForm("entity-form", entity, "context://flows/workflow-schema.xml");
while (true) {
form.save(cocoon.environment.getObjectModel(), "request");
sendPageAndWait("entity-form", {});
form.populate(cocoon.environment.getObjectModel());
form.validate("phase");
if (form.getViolations() != null && form.getViolations().size() > 0) {
continue;
}
break;
}
session = sessionFactory.openSession();
session.saveOrUpdate(entity);
session.flush();
session.close();
IMHO, you can't beat the elegance and clarity of this approach.
regards Jeremy
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