lore

https://github.com/fuchsto/lore

Lore is an object-relational mapping (ORM) implementation providing many features like prepared statements, (multiple) inheritance, true polymorphism, a comfortable query syntax, highly customizable automated form generation, and result caching. It aims at performance, usability and - unlike most ORMs - high coverage of object oriented paradigms. Lore is currently using PostgreSQL as database backend.