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Automagically find localized images

/ Published in: Rails
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Patches Rails 3 to automatically look for images in a folder corresponding to the current locale (under 'images', ie: '/images/en'), and falling back first to the folder of the default_locale, and then to the main images folder ('/images') if the image was not found in the locale folder. Put any localized images in their corresponding folders ('/images/en', '/images/es', etc.) and any non-localized images in '/images'. No need to specify anything special in the view, just use image_tag as usual.

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  1. module ActionView
  2.   module Helpers #:nodoc:
  3.     module AssetTagHelper
  4.       def image_path(source)
  5.         if File.exists? [RAILS_ROOT, 'public', 'images', I18n.locale, source].join('/')
  6.           compute_public_path(source, "images/#{I18n.locale}")
  7.         elsif File.exists? [RAILS_ROOT, 'public', 'images', I18n.default_locale, source].join('/')
  8.           compute_public_path(source, "images/#{I18n.default_locale}")
  9.         else      
  10.           compute_public_path(source, 'images')
  11.         end
  12.       end
  13.       alias_method :path_to_image, :image_path
  14.     end
  15.   end
  16. end

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