Paper_clip s3 - application/octet-stream?

All my rails paper_clip images are being uploaded to Rails as "application/octet-stream"

Which is casuing issues.

How in Rails do I set the content/type to the right type? Image/png etc, based on the actual image being uploaded?

Thanks开发者_开发知识库

---

Well, in general you can always detect the proper mime-type from the uploaded file itself by using 'mime/types':

# Controller

def create
  @photo = Photo.new(:upload_file => params[:photo][:image])
  ...
end

# Model

class Photo < ActiveRecord::Base  
  require 'mime/types'
  ...
  def upload_file=(data)
    data.content_type = MIME::Types.type_for(data.original_filename).to_s
    self.image = data
  end 
end