Socialization allows any model to Follow and/or Like any other model. This is accomplished through a double polymorphic relationship on the Follow and Like models. But you don't need to know that since all the complexity is hidden from you.

Deprecated finder APIs extracted from Active Record.

Solves the problem of trying to get all the changes to an object during a transaction in an after_commit callbacks.

Citus Rails Integration (Rails 4.2)

Cache utilities.

Cache utilities.

ActiveRecord::JSONValidator makes it easy to validate JSON attributes with a JSON schema.

AutoStripAttributes helps to remove unnecessary whitespaces from ActiveRecord or ActiveModel attributes. It's good for removing accidental spaces from user inputs. It works by adding a before_validation hook to the record. It has option to set empty strings to nil or to remove extra spaces inside the string.

Rails performance tests (removed from core in Rails 4.0)

Database-backed Action Cable backend.

Bit fields for ActiveRecord: This gem lets you use a single integer column in an ActiveRecord model to store a collection of boolean attributes (flags). Each flag can be used almost in the same way you would use any boolean attribute on an ActiveRecord object.

This gem allows you to easily use [Hashids](http://hashids.org/ruby/) in your Rails app. Instead of your models using sequential numbers like 1, 2, 3, they will instead have unique short hashes like "yLA6m0oM", "5bAyD0LO", and "wz3MZ49l". The database will still use integers under the hood, so this gem can be added or removed at any time.

Make it easy to upsert on MySQL, PostgreSQL, and SQLite3. Transparently creates merge functions for MySQL and PostgreSQL; on SQLite3, uses INSERT OR IGNORE.

Active Record (>=3.1) plugin which allows you to hide and restore records without actually deleting them. Check its GitHub page for more in-depth information.

DbCharmer is a Rails plugin (and gem) that could be used to manage AR model connections, implement master/slave query schemes, sharding and other magic features many high-scale applications need.

Decorators on top of your ORM layer.

Active Record (>=3.0) plugin which allows you to hide and restore records without actually deleting them. Check its GitHub page for more in-depth information.

Migrations and model helpers for creating and managing PostgreSQL 10 partitions

Active Record (~>3.2) plugin which allows you to hide and restore records without actually deleting them. Check its GitHub page for more in-depth information.

Active Record (>=3.0) plugin which allows you to hide and restore records without actually deleting them. Check its GitHub page for more in-depth information.