Scheduler and Worker makes a unit. You can also make your own worker as well.

DataMapper plugin that provides pagination

DataMapper plugin that helps you manipulate an existing database. It creates mappings between existing columns and model's properties.

Pagination tools for Array(or custom class), DataMapper and ActiveRecord

Grape resources provides simple API token auth for grape in three different flavours.

A gem that provides a Single Sign On server

Fork of Lori Holden's simple pagination plugin for DataMapper

Historian Version: DataMapper backend for delayed_job

An irc bot framework that offers easy-to-use by plugins

this is set of rails and datamapper plugins for setting up a little more advanced rails application then the default rails generator does. the focus is on security and privacy as well a complete restful xml support.

audit the controller actions for the current user. log that data into the database and allow to expire this log files (privacy protection) and be able to browse it from the UI

dump errors on filesystem and notify developers, map different errors to specific pages

A DataMapper adapter for Amazon's SimpleDB

Simple Datamapper plugin for referencing Resources by 'URL slugs'

This is a library I've developed for attachments, because I just don't like the others I've tried.

Add address fields to a DataMapper model. This includes optional validations, and additional DM types for ZipCode and PhoneNumber.

This module enables a property in a DataMapper::Resource class to be filtered on save into another property, using per-row and/or per-property filters

Sync content from a Subversion repository to a DataMapper model

Sends you an email when someone @replies you on twitter.

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 is jmcnevin's fork (http://github.com/jmcnevin/delayed_job).