base64 decoding by paperclip in rails 3

Question

I am developing a server backend for my iphone application. I need to upload a picture from my Iphone app to the rails server

I have a base64 encoded image in the post request from my app which I need to parse and send to the Paperclip plugin for the re-sizing of the image.So can anybody suggest me how to do it.

Help me!!!. Thanks in advance.

Answer 1

In order to save image with correct extension you have to specify content type. It's quite nice to have this in your model as method which is called before_validation

   StringIO.open(Base64.decode64(self.photo_base64)) do |data|
      data.original_filename = "image_name.jpg"
      data.content_type = "image/jpeg"
      self.photo = data
    end

Answer 2

Try this:

sio = StringIO.new(Base64.decode64(string))

[ source: base64 photo and paperclip -Rails ]