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

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

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 \ that are stored within one database column cell instead of several columns.

A Rails validator for immutable attributes.

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.

A gem that provides logging functionality for ActiveRecord models, storing logs in a separate table with support for log chains, metadata, and different visibility levels.

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

Build a hash based on active record attributes.

Simple password model implemented on top of ActiveModel::Model

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

ActiveModel::Permalink generates permalinks for your ActiveModel objects, including support for Mongoid.

Adds in-memory persistence to ActiveModel models

Enhances application models with a simple and unobtrusive Presenter pattern implementation.