Using traco with a legacy rails system

[professor]

I was trying to solve something similar to @Kinaan in #32

We have a long lived Rails application with many tables and many columns and other business units that write sql queries against our database. Renaming English columns (:name to :name_en) would break many of our external dependencies.

I'm considering a different approach and offer it here if it is helpful to anyone else.

Step 1, we add in :name_en which is what traco will treat as the source of truth for the data
Step 2, we make sure that :name is in-sync with :name_en for all of our external dependencies.

class Product < ActiveRecord::Base
  translates :name, :description

  before_save do
    write_attribute(:name, name_en)
    write_attribute(:description, description_en)
  end

  before_update do
    write_attribute(:name, name_en)
    write_attribute(:description, description_en)
  end
end

Just realized that for ActiveAdmin, we'll want to disable editing name and edit name_en instead.