If you've gone through the trouble of linking your schema with proper foreign keys, defining associations in ActiveRecord feels like double work. ActiveSchema discovers the associations and validations that can be derived from the database schema.

Utilty gem to provide scopes to models.

Deployment scripts for commonly used server setups.

ActiveSearch will allow any model to be 'searched for' in a text field given the 'searchable_by' attribute

ActiveSeed Gives the ability to seed data by inserting it via activerecord. Also allows you to manage sets of data and seed based on the current environment.

Optimize ActiveRecord models with support for SEO, Twitter and Open Graph meta.

Provide a very simple way to transform ActiveRecord data into Hash output.

Object to Hash serializer

Steroids for business modules.

Easily filter, sort, and paginate enumerable sets.

See README for full details on how to install, use, etc.

ActiveSettings provides an open and ad-hoc settings config for globally-accessible variables via ActiveRecord in your rails 3.1+ app.

Allow using a Shotgun site as a DB for Active Model objects.

["Description"]

Find similar Active Record models through most common associations.

Easily send sms using various sms backends!

ActiveSMS backend for using amazon web services sms delivery

ActiveSMS backend for sms.ru service

Adds ability to sort models using a custom field

Watch for a method call in any class and run before/after callbacks. You can even watch your Rails models for events (like create, update, destroy), send these events to a event-runner instance and it redirect these events to other apps that are subscrived for them. This gem also provides classes that you can use to process the received events too.