+ def permalink
+ lon, lat, zoom = ShortLink::decode(params[:code])
+ new_params = params.clone
+ new_params.delete :code
+ if new_params.has_key? :m
+ new_params.delete :m
+ new_params[:mlat] = lat
+ new_params[:mlon] = lon
+ else
+ new_params[:lat] = lat
+ new_params[:lon] = lon
+ end
+ new_params[:zoom] = zoom
+ new_params[:controller] = 'site'
+ new_params[:action] = 'index'
+ redirect_to new_params