How do I add translations to an Active Model

Question

I have this model:

class Coupon
  include ActiveModel::Validations
  include ActiveModel::Conversion
  extend ActiveModel::Naming

  attr_accessor :id

  def initialize(attributes = {})
    attributes.each do |name, value|
      send("#{name}=", value)
    end
  end

  def persisted?
    false
  end
end

How can I add i18n translations to this model? Specifically:

• How do I translate its model name?
• How do I translate its attributes?
• How do I provide custom translation for its submit button?

I am using SimpleForm.

Answer 1

In your config/locales folder, create an activerecord.nl.yml (e.g. for Dutch), then in that file put the active record translations as follows

nl:
  activerecord: 
    models: 
      coupon: translation
      coupons: translation

As for the labels and buttons, create a simple-form.nl.yml file, containing

nl:
  buttons: &buttons
    submit: translation
    ...

and

  labels: &labels
    name: translation
    ...

at the end of that file, put

  simple_form:
    buttons:
      defaults:
        <<: *buttons
    labels:
      defaults:
        <<: *labels

by splitting up the list of labels and buttons from the simple form section, you can also use them elsewhere in your views