版本处理后，如何让载波不保存原始文件？ [英] How can I make carrierwave not save the original file after versions are processed?

问题描述

我正在使用CarrierWave在Rails 3.1中进行文件上传，我正在寻找一种节省服务器空间的方法。许多上传的照片是20MB以上，所以在处理到1024×1024之后，我想删除原来的。有没有什么简单的方法可以做到这一点在上传类？

谢谢，
--Mark

我不知道你的模型，但是像如果你定制它，这可能会工作：

  class User<< ActiveRecord :: Base 
 
 after_create：convert_file 
 after_create：delete_original_file 
 
 def convert_file 
＃做你必须做的事情
 end 
 
 def delete_original_file 
 File.delete self.original_file_path如果File.exists？ self.original_file_path 
 end 
 end 
  

I'm using CarrierWave for my file uploads in Rails 3.1, and I'm looking for a way to save server space. Many of the photos being uploaded are upwards of 20MB, so after processing them down to 1024 x 1024, I would like to remove the original. Is there any easy way to do that in the uploader class?

Thanks, --Mark

解决方案

You could define an after_save callback in you model and delete the photo..

I dont know your model but something like this may work if you customize it:

class User << ActiveRecord::Base

  after_create :convert_file
  after_create :delete_original_file

  def convert_file
    # do the things you have to do
  end 

  def delete_original_file
    File.delete self.original_file_path if File.exists? self.original_file_path
  end
end

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