demarches-normaliennes/app/models/user.rb

class User < ActiveRecord::Base
  # Include default devise modules. Others available are:
  # :confirmable, :lockable, :timeoutable and :omniauthable
  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :validatable

  has_many :dossiers

  def self.find_for_france_connect email, siret
    user = User.find_by_email(email)
    if user.nil?
      return User.create(email: email, password: Devise.friendly_token[0,20], siret: siret)
    else
      user.update_attributes(siret: siret)
      user
    end
  end
end