Ruby ORM Libraries
Ruby ORM Libraries
Ruby ORM libraries embody the 'convention over configuration' philosophy. Active Record is the core component of Ruby on Rails, Sequel emphasizes flexibility and extensibility, and ROM adopts a functional programming approach. They feature intuitive APIs using DSL, enabling rapid development.
GitHub Star Comparison
| No | Name | GitHub Stars | Description | Trend | License | Type | Official Site |
|---|---|---|---|---|---|---|---|
| 1 | Active Record | ⭐ 57.3k | Active Record is the ORM of Ruby on Rails, implementing the Active Record pattern with minimal configuration through the Convention over Configuration philosophy. It includes built-in database migrations, validations, callbacks, and association features. | stable | MIT | Library | - |
| 2 | ActiveRecord | ⭐ 57.3k | ActiveRecord is "the core ORM (Object-Relational Mapping) library of Ruby on Rails" developed as the most essential database manipulation library in the Ruby ecosystem. Designed based on Martin Fowler's "Active Record" pattern, it automatically maps database tables to Ruby classes. Through an intuitive and readable API, it enables complex database operations without writing SQL statements, establishing itself as an indispensable tool for Rails developers. | stable | MIT | Library | - |
| 3 | Sequel | ⭐ 5.0k | Sequel is "a simple, flexible, and powerful SQL toolkit for Ruby" developed as a highly regarded database abstraction library in the Ruby ecosystem. With the concept of "efficient interaction with databases," it combines intuitive DSL with SQL flexibility, supporting major databases like PostgreSQL, MySQL, and SQLite. Despite its lightweight design, it comprehensively provides features necessary for full-scale application development including model functionality, migrations, connection pooling, and transaction management. | stable | MIT | Library | - |
| 4 | Mongoid | ⭐ 3.9k | Mongoid is "the officially supported object-document mapper (ODM) for MongoDB in Ruby" developed as a comprehensive ODM framework that provides seamless integration between Ruby applications and MongoDB. With API parity to ActiveRecord wherever possible, it ensures developers working with Rails applications can use familiar methods and mechanics. Mongoid supports flexible data modeling native to Ruby applications, offering powerful features like embedded documents, dynamic attributes, complex queries, and comprehensive validation. As the standard MongoDB solution for Ruby development, it provides production-ready performance and maintainability for modern web applications. | stable | MIT | Library | - |
| 5 | DataMapper | ⭐ 751 | DataMapper was developed as "a unified Ruby interface for data stores," providing a unified API for multiple data stores as an ORM library. It supported not only MySQL, PostgreSQL, and SQLite but also diverse data stores such as Facebook (via FQL), Salesforce API, and Amazon S3, featuring simple and intuitive query syntax. However, the project has been discontinued and migration to its successor project, Ruby Object Mapper (ROM), is recommended. | stable | MIT | Library | - |
| 6 | Data Mapper Pattern | - | The Data Mapper pattern is a data access layer that performs bidirectional transfer of data between in-memory objects and a persistent data store (typically a relational database). The goal of this pattern is to keep the in-memory representation and the persistent data store independent of each other and the data mapper itself. Named by Martin Fowler in his 2003 book "Patterns of Enterprise Application Architecture," this pattern enables a design where domain objects don't need to know about the database's existence, requiring no SQL interface code or explicit knowledge of the database schema. | stable | MIT | Library | - |
| 7 | Ohm | - | Ohm is a Redis-specific object mapping library. It enables treating Redis data structures as Ruby objects through a simple and beautiful API, optimized for NoSQL approaches. By combining Redis's speed with Ruby's expressiveness, it enables scalable application development. | stable | MIT | Library | - |
| 8 | ROM (Ruby Object Mapper) | - | ROM (Ruby Object Mapper) is "a Ruby data mapping toolkit based on functional programming principles" designed as a new approach to data persistence that serves as an alternative to the traditional Active Record pattern. Adopting the concepts of "Command Query Responsibility Segregation (CQRS)" and "functional programming," it achieves high maintainability and predictability through immutable objects, pure functions, and explicit dependencies. It can interact with multiple databases (PostgreSQL, MySQL, SQLite, Redis, Elasticsearch, etc.) through a unified API, significantly improving data layer design in complex enterprise applications. | stable | MIT | Library | - |