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POMatching available languages to language names
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copied!<p>I want to make a language selection dropdown in a site user edit/create page.</p> <p>For this purpose, I have of course translated the site to more than one language. Using I18n.available_languages, I can then get an array of locale codes, like so</p> <pre><code>development environment (Rails 2.3.4) > I18n.available_locales => [:en, :da] </code></pre> <p>Furthermore, I have created a Language model and related it to User:</p> <pre><code># app/models/language.rb class Language < ActiveRecord::Base has_many :users end # app/models/user.rb class User < ActiveRecord::Base belongs_to :language end # db/schema.rb create_table "languages", :force => true do |t| t.string "name" t.string "code" end create_table "users", :force => true do |t| t.integer "language_id" end </code></pre> <p>The language table then contains a locale code and a language name in the native tongue, like so:</p> <pre><code>| id | name | code | ------------------------------------ | 28 | Dansk | da | | 29 | Nederlands | nl | | 30 | English | en | | 31 | Esperanto | eo | </code></pre> <p>I then have the following assignment in the User new, create and edit actions:</p> <pre><code># app/controllers/users_controller.rb (extract) @available_languages = I18n.available_locales.collect {|language_code| Language.find_by_code(language_code.to_s)} </code></pre> <p>which I use in the view like so ('available_languages' is a local variable, since @available_languages from the controller has been passed to a partial):</p> <pre><code># app/views/users/_form.haml (extract) = f.collection_select(:language_id, available_languages, :id, :name, {:prompt => true}) </code></pre> <p>The upshot of all this, is that the user will get a locale select dropdown to define the locale for the given user.</p> <p>My question is: Is there a clean way to move the @available_languages assignment out of the UsersController and into the Language model, so I can shorten this:</p> <pre><code>@available_languages = I18n.available_locales.collect {|language_code| Language.find_by_code(language_code.to_s)} </code></pre> <p>to something like this:</p> <pre><code>@available_languages = Language.translations_available </code></pre>

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