Hi,
My organisation has a relatively large legacy database that has a java
application (using hibernate) to perform analytics on the data.

We need to develop a CRUD application for it and I have been looking at
Ruby on Rails and scffolding to do it. It does not need to be fancy
interface at all, just have an ability for CRUD.

What I am concerning about is the Id field in RoR and having it change
the datamodel. As other application are using it, is it possible to
have RoR integrate directly with an exisitng data schema without
changing it ? All the tutorials sort of do DB development when writing
the web application.

Thanks in advance, it means a lot of time would be saved!