Using I18n to Translate Enum Labels

Rails provides I18n (Internationalization) to handle translations efficiently. We can define enum translations in locale files and use them dynamically in views and controllers.

Step 1: Define Translations in config/locales/en.yml 

en:
  activerecord:
    attributes:
      user:
        statuses:
          active: "Active"
          inactive: "Inactive"
          banned: "Banned"

For French translations, create config/locales/fr.yml:

fr:
  activerecord:
    attributes:
      user:
        statuses:
          active: "Actif"
          inactive: "Inactif"
          banned: "Banni"

Step 2: Fetch Translated Enum Labels in Rails

Now, modify the User model to fetch translated enum labels:

class User < ApplicationRecord
  enum :status, { active: 0, inactive: 1, banned: 2 }

  def human_status
    I18n.t("activerecord.attributes.user.statuses.#{status}")
  end
end

Example: Getting Translated Status 

I18n.locale = :fr
user = User.new(status: :active)

puts user.human_status  # => "Actif"

I18n.locale = :en
puts user.human_status  # => "Active"

By switching the locale dynamically, we automatically translate enum values without changing business logic.