title: Rails: How to to download a file from a http and save it into database
body: <p>i would like to create a Rails controller that download a serie of jpg files from the web and directly write them into database as binary 
  (I am not trying to do an upload form)</p>
  
  <p>Any clue on the way to do that ?</p>
  
  <p>Thank you</p>
  
  <p>Edit : 
  Here is some code I already wrote using attachment-fu gem :</p>
  
  <pre><code>http = Net::HTTP.new('awebsite', 443)
  http.use_ssl = true
  http.verify_mode = OpenSSL::SSL::VERIFY_NONE
  http.start() { |http|
     req = Net::HTTP::Get.new("image.jpg")
     req.basic_auth login, password
     response = http.request(req)
     attachment = Attachment.new(:uploaded_data =&gt; response.body)
     attachement.save
  }
  </code></pre>
  
  <p>And I get an "undefined method `content_type' for #" error</p>