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Rails concern for ActiveRecord attribute translation using PostgreSQL's JSONB datatype.

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AttrTranslate

Rails concern for ActiveRecord attribute translation using PostgreSQL's JSONB datatype.

AttrTranslate is extracted from the Brightcommerce platform and is used in a number of other software projects.

Installation

To install add the line to your Gemfile:

gem 'attr_translate'

And bundle install.

How To Use

To add AttrTranslate to a model, include the concern and class method:

class Post < ActiveRecord::Base
  include AttrTranslate

  attr_translate :title, :body
end

For convenience the attr_translate class method is aliased internally as attr_translates.

To autoload AttrTranslate for all models, add the following to an initializer:

require 'attr_translate/active_record'

You then don't need to include AttrTranslate in any model, but you still need to add the attr_translate class method.

Setup

Each attribute that will have translations will need to be setup appropriately in your model's migration. Append _translations to the column name, and set the column type to :jsonb. To aid in search, setup an index using the gin index type. Each translation will be stored using the locale as a key in a hash and converted to JSON.

class CreatePosts < ActiveRecord::Migration[5.2]
  def change
    create_table :posts do |table|
      table.column :title_translations, :jsonb, default: {}, index: {using: 'gin'}
      table.column :body_translations, :jsonb, default: {}, index: {using: 'gin'}
      table.timestamps
    end
  end
end

Dependencies

AttrTranslate gem has the following runtime dependencies:

  • activerecord >= 5.1.4
  • activesupport >= 5.1.4

Compatibility

Tested with MRI 2.4.2 against Rails 5.2.2.

Contributing

  1. Fork it
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create new Pull Request

Credit

This gem was written and is maintained by Jurgen Jocubeit, CEO and President Brightcommerce, Inc.

License

The gem is available as open source under the terms of the MIT License.

Copyright

Copyright 2018 Brightcommerce, Inc.