Searchlogic provides common named scopes and object based searching for ActiveRecord.

Easily build jsonapi.org-compatible APIs

Add native support for MySQL [5.7] JSON data type to Rails 4.

ActiveRecord support for mapping complex documents in a single RDBMS row via JSON serialization.

Native MySQL additions to ActiveRecord, like LOAD DATA INFILE, ENABLE/DISABLE KEYS, TRUNCATE TABLE.

Color search for Rails

Upstream pull request: https://github.com/amatsuda/kaminari/pull/636

An Active Record DSL extension that allows you to declare multiple associaitons with a block

Abuse Sql database as Key-Value store

Kill Bill payment plugin for Paypal Express Checkout.

Queue any method in any class or instance with no need for additional Worker class and no extra code

Process KISSmetrics data dumps

Quickly add KMS encryption and decryption to your ActiveRecord model attributes and ActiveJob parameters. Improves upon kms_attrs with ActiveJob support, more efficient binary serialization and a test suite.

Compose an object from comma separated keys.

An ActiveRecord plugin for self-referential and double-sided polymorphic associations.

Process your Paperclip attachments in the background with ActiveJob

write common active_record methods in shorthand

This gem helps doing LEFT JOIN's between ActiveRecord associations

Backport `left_joins` from Rails 5 for Rails 3 and 4.

Create ActiveRecord models from an existing database