使用link_to来指定控制器动作时，使Ajax部分出现问题

<%= link_to \"Connected\", :url => {:controller => \"propositions\", 
                           :action => \"substantive_content\"}, :remote => true %>

PropositionsController#show

  def substantive_content
     respond_to do |format|
         format.js{ render :update do |rightbar|
                 rightbar.replace_html \'content\', \'Hello World!\'
         end}
     end
  end

match \"substantive_content\" => \"propositions#substantive_content\", :as => substantive_content

<%= link_to \"Connected\", substantive_content_path, :remote => true %>

def substantive_content
  respond_to do |format|               
    format.js
  end        
end 

$(\'#content\').html(\"<%= render :partial => \'your_partial_name_here\' %>\");