Download file on click - Ruby on Rails

Question

My application is using Rails 2 backend, Heroku for hosting, Paperclip for file uploads, and Amazon S3 for file storage.

Right now users can upload files with paperclip

Answer 1

When you transfer the file, you need to set a Content-Disposition header with a value of attachment; filename=yourfilename.pdf. If it's transfered directly from S3, you'll need to tell S3 to set the Content-Disposition headers as well. Possibly also Content-Type.

Note that if you tell S3 to associate a Content-Disposition header, it will always transmit this header.

FWIW, here's Amazon's documentation on doing a PUT for an Object: http://docs.amazonwebservices.com/AmazonS3/latest/API/RESTObjectPUT.html

Answer 2

Please try the following:

class Test < ActiveRecord::Base

  has_attached_file :testfile, 
    :storage => :s3,
    # All your S3 config
    :s3_headers => {"Content-Disposition" => "attachment"}

end

This should tell the Paperclip Gem to set the "Content-Disposition" header to the value "attachment" for newly uploaded files.

Note that you have to manually edit the already uploaded file, e.g. with Cyberduck or another FTP Client.