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.

Add groups option for enumerize.

Eliminates "Undeclared attribute type for enum" errors that occur when running migrations with multiple enum columns added in separate migrations. Automatically declares missing enum attributes as integers, preventing migration failures.

Enum extension introduces: enum supersets, enum mass-assign, easy localization, and more sweetness to Active Record enums.

Scopeless enums, and some syntactic sugar for string enums

A Rails gem that provides enum-like functionality with support for metadata properties (label, icon, color, tooltip) and automatic scopes, validations, and inquiry methods.

Helper to derive an ActiveRecord enum from existing PostgreSQL database constraint.

Enum attributes with I18n and ActiveRecord support. DEPRECATED: This gem is deprecated and will be archived soon. Consider using Rails built-in human_attribute_name or alternative gems like enum_help.

Create Enum-like values directly in the database for flexibility, power and supremacy.

Ever wanted to restrict an attribute to specific values, but not wanted to create a join table to hold the values, and didn't want (or couldn't) create an enum field? Now you can, with enumitation!

Native PostgreSQL enum support for Ruby on Rails.

This gem allows to create enum records (named records) and to retrieve them easily. Supports globalize3 localization in enum fields initialization.

Allows using a single integer column as a set of booleans, with bitfield-style storage.

Enumeration tables for ActiveRecord

Simple state transitions for ActiveRecord enum columns

Translate ActiveRecord::Enum attributes. It extends ActiveRecord methods like ActiveModel::Translation and `enumerize` gem do.

Allows a finite set of values for any attribute.

Eql provides an ability to use ERB templates with your DB queries

Enhanced Rails is a framework for building web-application template and javascript agnostic on top of either MySQL, PostgreSQL, SQLite, DB2, SQL Server, or Oracle with eRuby- or Builder-based templates.

Erbee is a Ruby gem designed to automatically generate Entity-Relationship (ER) diagrams for your Rails applications. Leveraging the power of Mermaid for visualization, Erbee provides an easy and flexible way to visualize your database schema and model associations directly from your Rails models.