Recognition error on custom action?

Taylor Strait wrote:

VIEW:
   <%= link_to "Remove", :controller => "referrals",
                           :action => "remove",
                           :id => referral %>

CONTROLLER:
  def remove
    referral = Referral(params[:id])
    referral.update_attribute(body, "Removed by user request on
#{Date.today}")
    redirect_to(:controller => "people", :action => "show", :id =>
@person.id)
  end

Usually the stack trace also say which line number throws the error.

I wonder >body< is defined anywhere? Or perhaps 'body'?

Long