Rails：从URL保存文件并将其保存到Amazon S3

Question

什么是从给定的URL下载文件并立即上传到Amazon S3的更直接的方式（+保存到数据库中的一些关于文件的信息，如名称，大小等）？

现在，我没有使用Paperclip既无Carrierwave。

谢谢

Answer 1

简单：

require 'open-uri' 
require 's3' 

amazon = S3::Service.new(access_key_id: 'KEY', secret_access_key: 'KEY') 
bucket = amazon.buckets.find('image_storage') 
url = 'http://www.example.com/url' 
download = open(url) 

file = bucket.objects.build('image.png') 
file.content = (File.read download) 

if file.save 
    # Make a new ActiveRecord::Base class for this 
    LogFile.create(size: download.size, type: download.type, name: url) 
end 

https://github.com/qoobaa/s3