module ActionView::Helpers::FormHelper

def form_for_with_haml(object_name, *args, &proc)
  if block_given? && is_haml?
    oldproc = proc
    proc = haml_bind_proc do |*args|
      tab_up
      oldproc.call(*args)
      tab_down
      concat haml_indent
    end
    concat haml_indent
  end
  form_for_without_haml(object_name, *args, &proc)
  concat "\n" if block_given? && is_haml?
end