Paperclip 如何更改basename(文件名)? [英] Paperclip how to change basename (filename)?

问题描述

我正在尝试更改照片的基本名称(文件名):

I am trying to change the basename (filename) of photos:

在我的模型中，我有:

  attr_accessor :image_url, :basename

  has_attached_file :image,
          :styles => { :original => ["300x250>", :png], :small => ["165x138>", :png] },
          :url  => "/images/lille/:style/:id/:basename.:extension",
          :path => ":rails_root/public/images/lille/:style/:id/:basename.:extension"
before_save :basename
private

  def basename
  self.basename = "HALLLO"
  end

但是文件名根本没有改变.

But the filename is not changed at all.

推荐答案

如果您是直接分配文件，您可以这样做:

If you are assigning the file directly you can do this:

photo.image = the_file
photo.image.instance_write(:file_name, "the_desired_filename.png")
photo.save

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