Active Record Associations — Ruby on Rails Guides
初心者向け】RailsのActive Recordの解説&メソッドまとめ - Qiita
Active Record Associations — Ruby on Rails Guides
ORM Patterns: The Trade-Offs of Active Record and Data Mappers for Object-Relational Mapping - Thoughtful Code
Did Rails/ActiveRecord Railroad Our Timestamps? | Toptal®
How to Use Ruby on Rails Repositories and Active Record Model
Active Record Query Interface — Ruby on Rails Guides
A Deep Dive into Active Record Validations - Honeybadger Developer Blog
A Simple Ruby Application from Scratch with Active Record | The Codest
Series Hướng Dẫn Lập Trình Ruby on Rails (Phần 8) – Các kỹ thuật trong Rails bạn nên biết – Test
The Active Record Design Pattern
Creating Tables and Associations using Ruby/Active Record/Rake - DEV Community
Understanding Active Record Associations - YouTube
How to use Active Record in Sinatra (RUBY) | by Yoonsung Kim | Medium
Active Recordの使い方 | Think IT（シンクイット）
Create Active Record Self-Referential Relationships In Ruby on Rails | egghead.io
Rails: How to Use Greater Than/Less Than in Active Record where Statements
Active Record Joins - Learneroo
Pro Active Record: Databases with Ruby and Rails (Expert's Voice): Amazon.co.uk: Pytel, Chad, Yurek, Jonathan, Marshall, Kevin: 9781590598474: Books
ruby on rails 4 - ActiveRecord query through multiple joins - Stack Overflow
Episode #127 - ActiveRecord Tricks - YouTube
GitHub - cockroachlabs/example-app-ruby-activerecord: 'Hello World' application in Ruby using Active Record
