This library provide 2 acts_as modules, acts_as_entity and acts_as_relationship, so it helps you disign with ER model.

Active Record extender to make a database column enumerable and queryable

ActiveRecord plugin to validate values of column in specified word

Export ActiveRecord data as a csv.

Add favorite feature to any Active Record models

Add a feature resource to a rails app

This "acts_as" extension provides the capabilities for beautiful record finding by specified column(s).

act_as_flashcard is an adaptation of the Anki space repetition algorithm for rails applications

acts_as_flexigrid is ActiveRecord plugin for Flexigrid

acts_as_gravatar provide simple access to gravatar from ActiveRecord.Can interoperate with devise, etc..

acts_as_has_many is a gem that makes it easy to work with JSONB arrays as Active Record associations in your Ruby on Rails applications. It simplifies nested form handling.

Easy installation and helpers for using active storage for an avatar

Add push tokens to model

This gem makes it easy to authenticate a user by email and password

Use this gem to add import/export to .csv functionality to your activerecord models

Easily define abstract methods and callbacks for superclasses and modules

A gem to ease development by making Ruby behave more like Javascript

Plug-in uses for tracking and recording changes of attributes in model

real quick gem to add keywords across multiple models

ActsAsLearnable is a Ruby gem for ActiveRecord models. It provides a simple way to create flashcards in your app. It automatically schedules flashcards for review depending on recall quality (1 to 5). You can easily create a Spaced Repetition System (SRS) using this gem.