untitled0

omniauth = session["devise.omnidata"]
@user.username = omniauth['info']['first_name']+omniauth['info']['last_name']
@user.pic_url = omniauth['info']['image']

#From the facebook graph api docs: use ?type=square | small | normal | large to request a different photo

@user.pic = rails_download_url_method(@user.pic_url?square | small | normal | large)

require 'open-uri'
open('image.png', 'wb') do |file|
  file << open('http://example.com/image.png').read
end

a cleaner way might be directly in the method

def has_avatar
 blah blah blah
 data = open('http://penis.com/micropenis.jpg
 blah blah save
end
 
def get_avatar(omniauth)
  @user.pic = open(omniauth['info']['image']).read
  #use paperclip to save image
end