Migrate large tables without downtime by copying to a temporary table in chunks. The old table is not dropped. Instead, it is moved to timestamp_table_name for verification.

Add schema comments in your migrations, see them in model annotations and db/schema.rb dump

Generated scopes for ActiveRecord classes.

Building APIs the way you want it.

Amazon Redshift _makeshift_ adapter for ActiveRecord 5.

Wipe out inconsistent DB and schema.rb when switching branches. Just install this gem and use the standard rake db:migrate command.

Wipe out inconsistent DB and schema.rb when switching branches. Just install this gem and use the standard rake db:migrate command.

Extends your user model with friendships management methods

With more than one application server, validates_uniqueness_of becomes a lie. Two app servers -> two requests -> two near-simultaneous uniqueness checks -> two processes that commit to the database independently, violating this faux constraint. You'll need a database-level constraint for cases li...

Safe destroy for ActiveRecord.

Garner is a cache layer for Ruby and Rack applications, supporting model and instance binding and hierarchical invalidation.

Provides simple way to integrate regression test selection approach to your RSpec test suite

Referencing code in app/ from a database migration risks breaking the migration when your app code changes; this gem prevents that mistake

Fragment cache for graphql-ruby

Adds group and membership functionality to Rails models

Inkwell provides simple way to add social networking features like comments, reblogs, favorites, following/followers, communities, categories and timelines to your Ruby on Rails application.

A faster, lower-memory, fuller-featured querying API for ActiveRecord that returns results as unadorned, read-only objects.

Simple positioning for Active Record models.

Add support for master/slave database database clusters in ActiveRecord to improve performance.

Search object DSL