module ApplicationHelper

  def translation_links(object, field)
    html = ''
    return html if RAILS_ENV == 'test'
    for l in %w(en fr de es)
      if l == Globalize::Locale.base_language.code
        done = true
        lang = Globalize::Locale.base_language
      else
        lang = Globalize::Language.pick(l)
        done = translation_available_for(object, field, lang)
      end
      img = image_tag("flags/#{l}.png",
              :title => "Switch to #{lang.english_name} #{done ? '(done)':'(not translated)'}",
              :alt => lang.english_name, :class => done ? 'done' : 'todo')
      html << link_to(img, params.merge(:locale => l))
    end
    "<span class=\"flags\">#{html}</span>"
  end

  def translation_available_for(object, field, lang)
    Globalize::ModelTranslation.find(:first,
      :conditions => ['table_name = ? AND facet = ? AND language_id = ?',
        object.tableize, field, lang.id])
  end
  
end