I’ve written the first part of a tutorial for Og, an Object Relational Mapping tool which is part of the Nitro suite. I’ve been using this a lot over the past few months, and I thought it would be useful to provide a gentle introduction to Og. While it only covers some basic aspects of Og, it is still useful in its current form. I will add more to it over the coming weeks.
You can get it from the Downloads page.