Easy database internationalization plugin for Ruby on Rails
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init.rb

README.textile

has_foreign_language

has_foreign_language makes it easy to internationalize your database without mucking up your views and controllers or having to write a bunch of YAML.
Just create fields for each locale you want to support in addition to your default field and has_foreign_language will automatically call the appropriate one based on the current locale.

Example

First create your model:

script/generate model books title:string title_fr:string title_de:string author:string

Then specify which fields need to be internationalized in your model:

class Country < ActiveRecord::Base has_foreign_language :title end

Now let’s create a book in the console and see how this works:

I18n.default_locale = “en” b = Book.new(:title => “Slaughterhouse Five”, :title_fr => “Abattoir Cinq”, :title_de => “Schlachthof Fünf”) b.title # Slaughterhouse Five I18n.locale = “fr” b.title # Abattoir Cinq I18n.locale = “de” b.title # Schlachthof Fünf

Calling title on the model returns the appropriate column depending on which locale we’re in. This also works when we change the attribute:

I18n.locale = “de” b.title = “Etwas Anderes” b # Book id: nil, title: “Slaughterhouse Five”, title_fr: “Abattoir Cinq”, title_de: “Etwas Anderes”

If you want to set or return the default language attribute while in a different locale, you can call it the way you would call any other. Assuming the default is “en”, you would run:

b.title_en # Slaughterhouse Five b.title_en = “Something Else” # Book id: nil, title: “Something Else”, title_fr: “Abattoir Cinq”, title_de: “Etwas Anderes”

Validations

Validations are easy. Just run the validation on the default field name and it will apply to whatever locale you’re in.

class Country < ActiveRecord::Base has_foreign_language :title validates_presence_of :title end I18n.locale = “de” b = Book.new(:title => “Etwas Anderes”) # Book id: nil, title: nil, title_fr: nil, title_de: “Etwas Anderes” b.valid? # true I18n.locale = “en” b.valid? # false b.title = “Slaughterhouse Five” b.valid? # true

Copyright © 2008 factor[e] design initiative, released under the MIT license