MongoMapper is an object mapper for MongoDB built in Ruby to be simple and extensible.
Purpose: Object Document Mapper
Maintenance status: Actively Maintained
The most recent known version of MongoMapper is 0.13.1 - it was released 2 years and 7 months ago.
This page is a work in progress. Please bear with me while I bring it up to speed. In the meantime, feel free to leave your thoughts on this tool in the comments below. Or, if you are the developer of this tool, please let me know of any updated information I should have.