I am new to Rails, so this might be a stupid question. However, neither browsing the available online documentation nor googling solved my problem.
I have a "legacy" database that is supposed to be accessed both by traditional GUI programs (currently implemented in wxPython) and as well as a web app (RoR based)
User authentication and role based authorization is now all handled by the backend (Postgresql) and I want to keep it that way so that nobody in the GUI app can accidentally access records that they are not supposed to access, and so that I don't have to duplicate work in both GUI app and web app re authentication.
1.) How do I (in RoR) log into a database backend as a specific user with a given password per session? I guess there must be a model base class where I implement this and then derive all further models from this one?
2.) How do I gracefully react to authentication errors coming from the PostgreSQL backend in RoR?
(both so easy in Python+ wxPython which I am used to, but I have no idea how to do it in RoR - I would be most grateful for any help)