Simple use case interactor for Rails apps based on ActiveModel

A library for creating Active Models that can serialize/deserialize to JSON. This includes full support for validation and change detection through nested models. You can write polymorphic models or arrays of models and get full support for natural serialization. Active JSON Model can optionally...

Subscribing to single responsibility principility ActiveLayer aims to provide a layer of context over top a model.

Declares attribute for Active Model objects

Expand _changed? method. Enable to specify changed attribute value

Validates a specific attribute on ActiveModel, ActiveRecord

A base64 validator for Rails 3 and 4.

A behavior validator for Rails 3 and 4.

A Rails validator based on CanCan.

Provides coercions for ActiveModel objects

CSV Validator for Active Model

ActiveModel-style email address format validator

Simple email confirmation model implemented on top of ActiveModel::Model

An ActiveModel email validator based on the Mail gem.

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

Common validations for ActiveModel

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

A Rails validator for immutable attributes.

Interdependent model validations