This gem patches all of the problems that appear from running Rails with DataMapper on the GAE. The main patches are patching DataMapper so that it does not use the ObjectSpace (The ObjectSpace itself is also patched so that this works seamlessly). Also ActiveView is patched so that all of the partial shortcuts work with DataMapper. In addition, a generate is provided (dd_model) that will produce a DataMapper model. One last note is that this gem depends on a dm-core (and other dm gems), dm-appengein, and rails_appengene so all you need is to require this gem in your gem file and you should get all the other gems you need to make DataMapper work with Rails and the GAE.

Red Safe is a conveyor belt to get your web-based project on a fast roll.

A simple request logger to be used with Rails and other Rack apps.

Riot Assertion Macros for DataMapper

Rivendell database mapping

Makes it easy to set a role strategy on your User model in DataMapper

Scrapescobbler is a tool to submit tracks you're listening to on an old-fashioned radio station to last.fm.

A small URL shortening server with a nice, clean, RESTful API.

A custom MVC stack that tries to keep the lightweight Sinatra feeling, while adding structure to an already awesome workflow.

Basic authentication gem with support for Datamapper and ActiveRecord.

A full-featured metrics extension for the sinatra webapp framework

CLI dictionary created to help you to learn foreign languages.

A merb plugin that provides the default restful actions for controllers.

Delayed_job (or DJ) encapsulates the common pattern of asynchronously executing longer tasks in the background. It is a direct extraction from Shopify where the job table is responsible for a multitude of core tasks. This gem isa topprospect fork (http://github.com/topprospect/delayed_job) of the collectiveidea's fork (http://github.com/collectiveidea/delayed_job).

urls is a commandline bookmarking app that aims to make bookmarking fast, easy and customizable. urls also lets you organize bookmarks by tags. Works only on ruby 1.9.

Automatic field validation for forms backed by DataMapper models through Sinatra.

Ruby TestSwarm implementation

Asynchronous webhook queueing with skinny daemon support.