OmniAuth - User model

user.rb

class User < ActiveRecord::Base

  validates_uniqueness_of :email

  def self.from_omniauth(auth,params)

    find_by(provider: auth.provider, uid: auth.uid) || create_from_omniauth(auth,params)
  end

   def self.create_from_omniauth(auth,params)
    create! do |user|

      user.provider     = auth.provider
      user.uid          = auth.uid
      user.email        = auth.info.email
      user.first_name   = auth.info.first_name
      user.last_name    = auth.info.last_name
      user.user_hash    = SecureRandom.uuid.gsub(/\-/,'') # Used for the "remember me" cookie

    end
  end

end