Rails - Oct 2006 - Email attachment -> RMagick

I am trying to save an email attachment as a blob to the db. I''m trying
to it within our existing framework which uses RMagick to read the image
as a blob. When it does this I get a "JPEG datastream contains no
image"
error. Here is my code.

// Handles receiving the email
class AssetSubmitHandler < ActionMailer::Base

  def receive(email)
    if email.has_attachments?
      email.attachments.each do |attachment|
        img = Photo.create(:original_data => attachment)
        asset = Asset.create(:user_id => 2)
        asset.resource = img
        asset.save
      end
    end
  end
end

//Handles saving the image
class Photo < ActiveRecord::Base
  //..some code

  def original_data=(file)
    if file.size > 0
      if file.respond_to? :read
        img = Magick::Image.from_blob(file.read)[0] //this call causes
the error
      else
        img = Magick::Image.from_blob(file)[0]
      end

      img.format = ''JPG''
      self[:original_data] = img.to_blob

      self.width = img.columns
      self.height = img.rows
    end
    GC.start
  end

  //..more code
end


Do I need to base 64 decode the attachment? I could find a library
function to do this.

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