Cabalist is conceived as a simple way of adding some smarts (machine learning capabilities) to your Ruby on Rails models without having to dig deep into mind-boggling AI algorithms. Using it is meant to be as straightforward as adding a few lines to your existing code and running a Rails generator or two.

CanBe allows you to track the type of your ActiveRecord model in a consistent simple manner. With just a little configuration on your part, each type of record can contain different attributes that are specifc to that type of record.

Carnival is an easy-to-use and extensible Rails Engine to speed the development of data management interfaces. When you use Carnival you can benefit from made features that are already done. If you need to change anything, you can write your own version of the method, using real Ruby code without worrying about the syntax of the engine.

Sequel support for CarrierWave

clndr-rails easy way to display calendar in your Rails app

Context based validations for ActiveRecord models

Edit live website copy.

In Service Asynchronous Job Scheduler for Rails. This gem handles ActiveRecord model as schedule definition.

Easy breadcrumbs for Rails apps.

A data curation Ruby on Rails engine built on Hydra and Sufia

An easy-to-use Dropbox client with fine-grained control over syncs. Think of it as halfway point between the developer API and a normal client, which gives you control over what and when Dropbox syncs but handles all the details.

Different relational databases treat text search very differently. DbTextSearch provides a unified interface on top of ActiveRecord for SQLite, MySQL, and PostgreSQL to do case-insensitive string-in-set querying and CI index creation, and basic full-text search for a list of terms, and FTS index creation.

Cookie-based JWT authentication for devise with configurable token revocation strategies

Disqus 2012 Ruby on Rails wrapper

Converts documentation to a Dash Docset

DraftPunk allows editing of a draft version of an ActiveRecord model and its associations. When it's time to edit, a draft version is created in the same table as the object. You can specify which associations should also be edited and stored with that draft version. All associations are stored in their native table. When it's time to publish, any attributes changed on your draft object persist to the original object. All associated objects behave the same way. Any associated have_many objects which are deleted on the draft are deleted on the original object. This gem doesn't rely on a versioning gem and doesn't store incremental diffs of the model. It simply works with your existing database (plus one new column on your original object).

Simple RD-Stream for Rinda::TupleSpace lovers.

Adds ActiveRecord-specific methods to Dry::Initializer

An earth-simulation environment with ActiveRecord models and data

Elasticrawl is a tool for launching AWS Elastic MapReduce jobs that process Common Crawl data.