ActiveRecord::Migration

Active Record Migrations Migrations can manage the evolution of a schema used by several physical databases. It’s a solution to the common problem of adding a field to make a new feature work in your local database, but being unsure of how to push that change to other developers and to the production server. With migrations, you can describe the transformations in self-contained classes that can b

[kiyo_hiko]

自分用メモ→rails g model Member name:string pass:string // ...do |t|; t.string :name, null: false, unique: true; ...end; ...; add_index :members, :name

[Kureduki_Maari]

database - #Rails DB Migration - How To Drop a Table? - Stack Overflow http://t.co/1MkO4GHCoE

[suzuki09]

rails migration

[pirosikick]

Migrationについて