An ActiveModel extension to model your semi-structured data using embedded associations

Provides I18n support for validation error messages in ActiveModel. ...

Extends ActiveModel::Errors to allow messages to be generated that do not use the attri...

Backported from Rails 5.0 to use with 4.x versions

Builds a tree of errors instead of the 1-dimension one generated by ActiveMode::Base#er...

Allows to get errors type from an activemodel class, as a symbol, prior to the translation

A simple way to export data in Rails.

Some Extension::Extensions for your ActiveModel::Models

Common validations for ActiveModel

This gem adds the ability for models to have an unlimited number of custom flags \ ...

ActiveModel with support for booleans and datetimes in form helpers

Provides an ActiveModel::FormObject module that can be included into a PORO. A Rails Ge...

Serializing models to a single string makes it easy to pass references around.

A Rails validator for immutable attributes.

A Rails Engine to let models inherit partials until overridden.

Interdependent model validations

ActiveModel validator for ip address.

A IPv4 and IPv6 validator for Rails 3 and 4.

Enqueue background jobs from model classes

This gem has been renamed active_model_jobs.

A simple json validator based on ActiveModel.

Provides the ActiveModel::Lint::Tests for test-unit or minitest an RSpec shared example.

Simple, global ActiveRecord event observers, using a middleware architecture, that can ...

A gem that provides logging functionality for ActiveRecord models, storing logs in a se...

Provides a Logger::LogDevice that can save Ruby Logger messages to an array in your model

Render your JSON in a Normalizr-like JSON format

Build a hash based on active record attributes.

Adds methods to set and authenticate against one time passwords 2FA(Two factor Authenti...

Simple password model implemented on top of ActiveModel::Model

Simple password reset model implemented on top of ActiveModel::Model