如何在Rails 5.x.x应用程序中以Sip格式从S3下载多个文件? [英] How to download multiple files from S3 as Zip format in Rails 5.x.x app?

问题描述

我正在实现一项功能，该功能允许用户从S3下载单个文件或多个文件. 单个文件下载正常，但是对于多个文件，我在Heroku上收到错误消息，

I am implementing feature which allows user to either download single file or multiple files from S3. Single file downloading is working properly, but for multiple files I am receiving error on Heroku,

Errno::ENOENT (No such file or directory @ rb_file_s_lstat )

用于以zip格式下载文件的控制器代码段如下，

Controller code snippet for downloading files as zip format is as below,

def method_name
   zipfile_name = "#{Rails.root}/public/archive.zip"
   Zip::File.open(zipfile_name, Zip::File::CREATE) do |zipfile |
     @transfer.transfer_attachments.each do |attachment | 
       zipfile.add(attachment.avatar.file.filename, attachment.avatar.url)
     end
   end
   send_file(File.join("#{Rails.root}/public/", 'archive.zip'), : type =>
'application/zip', : filename => "#{Time.now.to_date}.zip")
end

宝石文件

ruby '2.3.1'

gem 'rails', '~> 5.0.1'

gem 'rubyzip', '>= 1.0.0'

gem 'zip-zip'

此zipfile功能适用于本地存储的文件.

This zipfile functionality works proper with locally stored files.

推荐答案

猜:您正在将附件添加为url，但是应该添加(本地)文件路径.

Guess: You are adding attachments as urls, but you should be adding (local) file paths instead.

这篇关于如何在Rails 5.x.x应用程序中以Sip格式从S3下载多个文件?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！