Active Record Associations — Ruby on Rails Guides

This guide covers the association features of Active Record. After reading this guide, you will know how to: Understand the various types of associations. Declare associations between Active Record models. Choose the right association type for your models. Use Single Table Inheritance. Setting up and using Delegated Types. 1. Associations OverviewActive Record associations allow you to define rela

[iga_k]

has_manyにブロックで メソッド書けるんやなー

[fjwr38]

関連分からへん

[iR3]

Polymorphic Associationsふむふむ

[yuske711]

rails has_one :dependent

[yysaki]

rails has_one :dependent

[src256]

build_…の使い方。

[sessan]

railsでリレーションのあるモデルを操作する情報。多対多の保存の情報が少ないな．build_xxxxかcreate_xxxxを使えば良さそう。

[mlhshino]

Naming examples of tables.