Class: Rack::I18nLocaleSwitcher

Inherits:
Object
  • Object
show all
Defined in:
lib/rack/i18n_locale_switcher.rb

Constant Summary collapse

DEFAULT_OPTIONS = 
{
  :param  => 'locale',
  :source => [ :param, :path, :host, :header ]
}.freeze

Instance Method Summary collapse

Constructor Details

#initialize(app, options = {}) ⇒ I18nLocaleSwitcher

Returns a new instance of I18nLocaleSwitcher.



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# File 'lib/rack/i18n_locale_switcher.rb', line 12

def initialize(app, options = {})
  @app = app
  
  invalid_options = (options.keys - DEFAULT_OPTIONS.keys)
  
  if invalid_options.any?
    raise ArgumentError, "Invalid option(s) #{ invalid_options.map(&:inspect).join(', ') }" 
  end
  
  @options = DEFAULT_OPTIONS.merge(options)
  @options[:source] = Array(@options[:source]) unless @options[:source].is_a?(Array)
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/rack/i18n_locale_switcher.rb', line 25

def call(env)
  I18n.locale = I18n.default_locale
  
  @options[:source].each do |source|
    if locale = send(:"get_locale_from_#{source}", env)
      I18n.locale = locale
      break
    end
  end
        
  @app.call(env)
end