Just wrap your existing code in `@relation.summarize do |relation| ... end` and run your queries against relation instead of @relation.

This gem extends ActiveRecord::Base to add automatic updating of created_by and updated_by attributes of your models in much the same way that the ActiveRecord::Timestamp module updates created_(at/on) and updated_(at/on) attributes.

Activity feeds backed by Redis

acts_as_account implements double entry accounting for Rails models. Your models get accounts and you can do consistent transactions between them. Since the documentation is sparse, see the transfer.feature for usage examples.

Sane ActiveRecord tree builder

Provides various extensions to the Rails ActiveRecord adapters.

A simple API for creating and finding sets of data in your database, built on ActiveRecord.

Creates aliases of ActiveRecord named scopes.

ActiveModel Serializers addon for eliminating N+1 queries problem from the serializers.

Generates attr_accessors that encrypt and decrypt attributes transparently

ActiveRecord plugin that allows to specify default values for attributes

A simple gem that audit ActiveRecord models' attributes or methods by taking snapshots and diff them for you. Starting from scratch to work with Rails 3.2.2 onwards

Execute any ActiveRecord Model method in the background

A simple API for creating and finding sets of data in your database, built on ActiveRecord.

GoogleBigQuery ActiveRecord Adapter & standalone API client

Birthday gem creates convienent methods for date and datetime fields in ActiveRecord, making it possible to look for birthdays without a hassle.

Rails database scrubber and loader, great for seeding your dev db with real but sanitized data

Cards are wiki-inspired data atoms.Card "Sharks" use links, nests, types, patterned names, queries, views, events, and rules to create rich structures.

CarrierWave storage for Dropbox

A lightweight and database-level library to transform any Active Record query into analytics data ready for any chart