MerbAdmin is a Merb plugin that provides an easy-to-use interface for managing your data

Microscope adds useful scopes targeting ActiveRecord boolean and datetime attributes.

Rake tasks for Rails that add groups to migrations

Low-tech search for ActiveRecord with MySQL or PostgreSQL

Hierarchical access management system with roles inheritance.

MySQL 5.6 adds a `LOCK=NONE` option to make sure migrations are done with no locking. Let's use it.

A ruby gem using neo4apis to make importing SQL data to neo4j easy

Normalize ActiveRecord attributes

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

Octoball provides Octopus-like database sharding helper methods for ActiveRecord 6.1 or later, using Rails' native horizontal sharding handling. This provides migration path to Rails 6.1+ for applications using Octopus gem with older Rails.

Provides a list of available letters, and a way of fetching the records for each letter.

locale-specific attachments with paperclip and globalize

Human Readable Change Log for Paper Trail'd data

A Solar Hijri (Jalali) date library for Ruby, whitch provides much of Ruby's built-in date class

Pecorino allows you to define throttles and rate meters for your metered resources, all through your standard DB

Generate permalink attributes on ActiveModel/ActiveRecord

Easy denormalization for your ActiveRecord models

Fast Ruby PG csv export. Uses pg function 'copy to csv'. Effective on millions rows.

Takes care of postgres DB consistency for ActiveRecord polymorphic associations via partitioning and inheritance

ActiveRecord extensions for PostgreSQL. Provides useful tools for schema, foreign_key, index, function, trigger, comment and extension manipulations in migrations.