demarches-normaliennes/app/models/concerns/credentials_syncable_concern.rb

module CredentialsSyncableConcern
  extend ActiveSupport::Concern

  included do
    after_update :sync_credentials
  end

  def sync_credentials
    if email_changed? || encrypted_password_changed?
      return force_sync_credentials
    end
    true
  end

  def force_sync_credentials
    SyncCredentialsService.new(self.class, email_was, email, encrypted_password).change_credentials!
  end
end