This is a clone of the datamapper docs. Datamapper.org was taken down and redirected around Feb, 2020. I claim no ownership of any of this stuff.

DataMapper is an Object Relational Mapper written in Ruby. The goal is to create an ORM which is fast, thread-safe and feature rich.

To learn a little more about this project and why you should be interested,
read the Why Datamapper? page.