Rails: How to use i18n with Rails 4 enums

Question

Rails 4 Active Record Enums are great, but what is the right pattern for translating with i18n?

Answer 1

Model:

enum stage: { starting: 1, course: 2, ending: 3 }

def self.i18n_stages(hash = {})
  stages.keys.each { |key| hash[I18n.t("checkpoint_stages.#{key}")] = key }
  hash
end

Locale:

checkpoint_stages:
    starting: Saída
    course: Percurso
    ending: Chegada

And on the view (.slim):

= f.input_field :stage, collection: Checkpoint.i18n_stages, as: :radio_buttons