直接通过配置属性来生成as_json。

allow ActiveModel constructor parameters with attribute_reader attributes

ActiveModel::Caching is a versatile gem for managing structured, temporary data using a caching backend, typically Rails cache for Rails applications. This gem provides an easy-to-use API for storing, retrieving, and manipulating data structures like scalars, lists, and JSON, making it simple to ...

ActiveModelChangeset provides a lightweight changeset abstraction for Ruby on Rails applications. It combines type casting, attribute normalization, validation and diff calculation into a single object, enabling safe and explicit create/update operations with patch semantics. The gem is designed...

CSV Validator for Active Model

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

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

Interdependent model validations

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.

Build a hash based on active record attributes.

Adds in-memory persistence to ActiveModel models

ActiveModel::Unvalidate provides a clean api for removing existing validations from models

An ActiveModel extension for more expressive validations reflection

Active Model Serializer with versioning

Monitor application status and health in a sane way Rails-y.

ActiveNetsuite to Netsuite is what ActiveRecord to RDBMS.

Simplifies sending notifications to your end users through multiple channels

Notify message through webhooks.

Simple null objects in Active Record

Simple OOP-ish tools for Rails