Ruby on Rails

In Rails 2 I could do this to get the view as a string (i.e. to save it to a file):

    av = ActionView::Base.new(Rails::Configuration.new.view_path)
    html = av.render(
        :partial => "comparisons/display",
        :locals => { :comparison => self, :format_html => nil, :print_view => print_view, :fully_qualified_url_prefix => fully_qualified_url_prefix, :user => user }
    )

In Rails 3 it seemingly does not work anymore. In reference to https://rails.lighthouseapp.com/projects/8994/tickets/3471-actionviewassigns-lost-its-usefulness, Yehuda Katz's comment (in reference to passing necessary parameters to ActionView::Base.new)  is "This was modified in order to improve performance and reduce the number of instance variable assigns we need to do in cases with many renders inside a single view."

So... is there a way to do this anyone knows of in Rails 3? Even if I can do so inside a controller I guess that would also be ok (I will try this next), but would prefer to leave things as they are.

Thanks,

David

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