Rails I18n: a very lightweight tool to allow you to transparently store multiple translations of attributes directly inside each DB record -- no extra database tables needed to store the localization data!

Save hash representation of class in json column as embedded model.

A framework for modelling the impact of real-world entities.

Emojimmy makes it possible to store emoji characters in ActiveRecord datastores that don’t support 4-Byte UTF-8 Unicode encoding.

ActiveModel validator for emojis, powered by the unicode-emoji gem, to ensure your Models do not contain characters you may not be able to handle

Encore provides serializers and persisters to build JSON API-compliant Web services with Ruby on Rails.

EnumeratedField is a library that provides some nice methods when a string column is used like an enumeration, meaning there is a list of allowable values for the string column.

Enables Active Record attributes to point to enum like objects, by saving in your database only an integer ID.

Enum attributes with I18n and ActiveRecord support

Adds enumerations to your models

Enum machine is a library for defining enums and setting state machines for attributes in ActiveRecord models and plain Ruby classes.

Allows ActiveRecord to better use PostgreSQL's ENUM types.

Elasticity provides a higher level abstraction on top of [elasticsearch-ruby](https://github.com/elasticsearch/elasticsearch-ruby) gem

Make your Ruby objects searchable with Elasticsearch.

Uses EXPLAIN to get an estimate count for an ActiveRecord::Relation

Database based event counter with throttling per time intervals

Everett is a substitute for Active Record Observer on Rails 5.

This concern maintains the illusion that a given object has specified attributes, when those attributes are in fact attached to an associated object. This is particularly useful for different classes within a single-table inheritance table to have access to separate fields in class-specific assoc...

A zero-configuration logging solution for projects using Sidekiq, Rails, Sequel, etc.

facetq - "stand-alone" facet (activerecord) models for easy (re)use for sql database queries and more