原来一幅图像的路径是：

"http://localhost:3000/system/photos/94/small/Audilogo.jpg?1335392139"

升级后,这种图像永远不会再显示！但是如果我上传一个新的图片,这将在页面上显示良好,但使用的新路径是：

"localhost:3000/system/products/photos/000/000/094/smal/Audilogo.jpg?1335392139"

升级中发生了什么？有没有解决方案将旧路径转换为新的？

我尝试用“耙纸剪贴画：刷新：missing_styles”,但不要工作.

纸夹配置部分就是这样.

has_attached_file :photo,:processors => lambda { |a|
                        if a.external?
                                [:thumbnail]
                        else
                                [:thumbnail,:watermark]
                        end
                        },:styles => {
                :slider => { :geometry => "350x312#",:format => :jpg,:watermark_path => "#{Rails.root}/public/images/watermark.png",:position => "NorthEast" },:small => "100x50>",:medium => "200>x200",:thumb => "100x100>",:big => { :geometry => "640x480>",:watermark_path => "#{Rails.root}/public/images/watermark.png" }
                },:default_url => "/images/noimage.png"

提前致谢.