Rails 3 translations within models in production

Question

I\'m trying to translate an app into Japanese and everything was going smoothly until I put it into production.

As cache_classes is now true any translation within a mod

Answer 1

Don't use I18n.t or translate method in your models. You can do this instead:

In your model

Use something like this to add internationalized errors to the name attribute of your model (Check documentation: ActiveModel/Errors/method-i-add):

self.errors.add(:name, :your_error_key) 
  # The error key could be something like :wrong_name

NOTE: Sometimes you won't even need to add errors with errors.add method. For example if you add validations in your model with somethind like this:

validates :name, presence: true

Rails will add an error with the key :blank (the key depens on the validation type). In other words rails internally will issue self.errors.add(:name, :blank)

In your locale

Then in your locale.jp.yml can use any of this (just one):

activerecord.errors.models.[model_name].attributes.[attribute_name]
activerecord.errors.models.[model_name]
activerecord.errors.messages
errors.attributes.[attribute_name]
errors.messages

In your case replace [model_name] with timeseries_forecast and [attribute_name] with your_error_key

For example:

en:
  errors:
    messages:
      your_error_key: "Your error message in english"