小编Abh*_*hek的帖子

异常处理不适用于 rails 中的 find_by 查询，代码如下：

  ab = User.find_by_uniq_token(params[:uniq_token])

不提高例外...而：

  ab = User.find(:id)  # is working fine...

我在应用程序控制器中有异常处理代码，例如：

  rescue_from ActiveRecord::RecordNotFound, :with => :record_not_found


  def record_not_found
    if current_user
      flash[:notice] = "Record not found "
      redirect_to authenticated_root_url
   else
     flash[:notice] = "Record not found ."
     redirect_to unauthenticated_root_url
     # Assuming you have a template named 'record_not_found'
   end
 end