Code to fetch Facebook image for Catarse

gistfile1.rb

  def self.create_with_omniauth(auth, primary_user_id = nil)
    u = create! do |user|
      user.provider = auth["provider"]
      user.uid = auth["uid"]
      user.name = auth["user_info"]["name"]
      user.name = auth["user_info"][:name] if user.name.nil?
      user.email = auth["user_info"]["email"]
      user.email = auth["extra"]["user_hash"]["email"] if auth["extra"] and auth["extra"]["user_hash"] and user.email.nil?
      user.nickname = auth["user_info"]["nickname"]
      user.bio = auth["user_info"]["description"][0..139] if auth["user_info"]["description"]
      if auth["provider"] == "facebook"
        user.image_url = "http://graph.facebook.com/#{auth["uid"]}/picture"
      else
        user.image_url = auth["user_info"]["image"]
      end
      user.locale = I18n.locale.to_s
    end
    # If we could not associate by email we try to use the parameter
    if u.primary.nil? and primary_user_id
      u.primary = User.find_by_id(primary_user_id)
    end
    u.primary.nil? ? u : u.primary
  end