class User < ActiveRecord::Base validate :provider, :presence => true validate :uid, :presence => true validate :nickname, :presence => true def self.create_with_omniauth(auth) create! do |user| user.provider = auth["provider"] user.uid = auth["uid"] user.nickname = auth["info"]["nickname"] user.name = auth["info"]["name"] user.avatar_url = OauthHelper.get_avatar_url(auth) end end end