Translate the has_many routes to nested plural resources.

lib/routes_upgrader.rb

@@ -268,6 +268,8 @@ def to_route_code
         unless copied_options.empty?
           copied_options_str = ", " + copied_options.map { |k, v| "#{k.inspect} => #{v.inspect}" }.join(",")
         end
+
+        add_has_many_to_children
 
         if [email protected]? || @options.has_key?(:collection) || @options.has_key?(:member)
           prefix = ["#{route_method} :#{@name}#{copied_options_str} do"]
@@ -279,6 +281,16 @@ def to_route_code
           indent_lines [base % [@name]]
         end
       end
+
+      def add_has_many_to_children
+        if @options[:has_many].is_a?(Symbol)
+          @children << FakeResourceRoute.new(@options[:has_many])
+        elsif @options[:has_many].is_a?(Array)
+          @options[:has_many].each do |resource|
+            @children << FakeResourceRoute.new(resource)
+          end
+        end
+      end
 
       def custom_methods
         collection_code = generate_custom_methods_for(:collection)

test/routes_upgrader_test.rb

@@ -215,4 +215,28 @@ def test_generates_code_for_delete_route
     upgrader.routes_code = routes_code
     assert_equal new_routes_code.strip, upgrader.generate_new_routes.strip
   end
+
+  def test_generates_code_for_resources_with_has_many_option
+    routes_code = %Q{
+ActionController::Routing::Routes.draw do |map|
+  map.resources :ducks, :has_many => [:geese]
+end
+    }
+
+    new_routes_code = %Q{
+MyApplication::Application.routes.draw do
+  resources :ducks do
+
+
+    resources :geese
+  end
+
+end
+    }
+
+    upgrader = Rails::Upgrading::RoutesUpgrader.new
+    upgrader.routes_code = routes_code
+
+    assert_equal new_routes_code.strip, upgrader.generate_new_routes.strip
+  end
 end