openfoodnetwork/lib/spree/core/token_resource.rb

# frozen_string_literal: true

module Spree
  module Core
    module TokenResource
      module ClassMethods
        def token_resource
          has_one :tokenized_permission, as: :permissable
          delegate :token, to: :tokenized_permission, allow_nil: true
          after_create :create_token
        end
      end

      def create_token
        permission = build_tokenized_permission
        permission.token = token = ::SecureRandom.hex(8)
        permission.save!
        token
      end

      def self.included(receiver)
        receiver.extend ClassMethods
      end
    end
  end
end

ActiveRecord::Base.class_eval { include Spree::Core::TokenResource }