gem 'enum_translate'

class Article < ActiveRecord::Base
  enum category: { finance: 0, lifehack: 1, technology: 2 }
end

class Article < ActiveRecord::Base
  include EnumTranslate

  enum category: { finance: 0, lifehack: 1, technology: 2 }
end

I18n.locale = :ja

Article.human_attribute_options(:category)
# => [["経済", "finance"],
#     ["生活豆知識", "lifehack"],
#     ["技術", "technology"]]

article = Article.last
article.category
# => "technology"

article.human_attribute_text(:category)
# => "技術"