patching route_translator

route_translator.rb

# copy and paste these methods over the ones that are defined in route_translator-4.0.0/lib/route_translator/translator.rb

def self.translations_for(app, conditions, requirements, defaults, route_name, anchor, route_set, &block)
  add_untranslated_helpers_to_controllers_and_views(route_name, route_set.named_routes)

  available_locales.each do |locale|
    new_conditions = conditions.dup
    
    # LOOK HERE!!!!!!!!!!!
    # this begin block is the only change i made to this method
    # HELLO!!!!!!!!!!
    # basically what we're doing is if a translation isn't available for the route, skip on creating it
    begin
      new_conditions[:path_info] = translate_path(conditions[:path_info], locale)
    rescue I18n::MissingTranslationData
      next
    end
    
    new_conditions[:parsed_path_info] = ActionDispatch::Journey::Parser.new.parse(new_conditions[:path_info]) if conditions[:parsed_path_info]
    if new_conditions[:required_defaults] && !new_conditions[:required_defaults].include?(RouteTranslator.locale_param_key)
      new_conditions[:required_defaults] << RouteTranslator.locale_param_key if new_conditions[:required_defaults]
    end
    new_defaults = defaults.merge(RouteTranslator.locale_param_key => locale.to_s.gsub('native_', ''))
    new_requirements = requirements.merge(RouteTranslator.locale_param_key => locale.to_s)
    new_route_name = translate_name(route_name, locale)
    new_route_name = nil if new_route_name && route_set.named_routes.routes[new_route_name.to_sym] #TODO: Investigate this :(
    block.call(app, new_conditions, new_requirements, new_defaults, new_route_name, anchor)
  end
  if RouteTranslator.config.generate_unnamed_unlocalized_routes
    block.call(app, conditions, requirements, defaults, nil, anchor)
  elsif RouteTranslator.config.generate_unlocalized_routes
    block.call(app, conditions, requirements, defaults, route_name, anchor)
  end
end

def self.translate_string(str, locale)
  locale = "#{locale}".gsub('native_', '')
  opts   = {scope: :routes, locale: locale}

  # if the locale is en, then if a translation isn't available, default back on the string we want to translate
  # so we might be trying to translate /facebook for EN
  # of course we don't want to have to define EN route translations in routes.yml
  # so we return back /facebook
  # BUT!! and this is the genius part
  # if a translation isn't available for ES
  # then a missing translation error will be raised
  opts.merge!({default: str}) if locale == "en"

  res    = I18n.translate(str, opts)
  URI.escape(res)
end