class CreateLanguages < ActiveRecord::Migration[8.0]
  def up
    create_table :languages, id: { type: :string, limit: 16 }, primary_key: :code do |t|
      t.string :name, null: false
      t.datetime :deprecated_at, index: true
      t.datetime :created_at, null: false
    end

    execute <<~SQL
      INSERT INTO
        languages(code, name, created_at)
      VALUES
        ('ja', '日本語', #{ connection.quote Time.current })
    SQL
  end

  def down
    drop_table :languages
  end
end