Convert MongoDB query to Arel for PostgreSQL + JSON

Add table-level database locking to ActiveRecord

Connection proxy for ActiveRecord for single master / multiple slave database deployments

ActiveRecord plugin designed to allow simple multiple table inheritance.

DB constraints in migrations similiar to ActiveRecord validations. Core classes

ensure active record connections will be reestablished if needed

provides functionality similar to acts_as_list. However, by managing position using a fractional indexing system, it allows database record updates during reordering to be completed with only a single update (N = 1)!

Adds the ENUM data type natively to ActiveRecord.

Provides NDR classes and class extensions

Checks for uniqueness vaidation in nested attributes for objects in memory .

It changes ActiveRecord::Base#destroy to support soft delete. Kind of simple acts_as_paranoid.

What is Nexter ? A misspelled tv show or a killer feature ? Almost : it wraps your model with an ordered scope and cuts out the next and previous record. It also works with associations & nested columns.

Ruby implementation of the MythTV communication protocol, and interface to the MythTV database

No more querying views in your Rails apps

Attribute normalizer for Rails.

Rescue ActiveRecord::RecordNotFound for specific models

If you have a presence validation, you'll probably want a non-null constraint to go with it.

Support through reusable Mixins and Helpers for Ruby on Rails Applications

Obfuscate

Transparently store MongoDB ObjectId values in ActiveRecord.