fab-manager/app/models/order_item.rb

# frozen_string_literal: true

# A single line inside an Order. Can be an article of Order
class OrderItem < ApplicationRecord
  belongs_to :order
  belongs_to :orderable, polymorphic: true
  belongs_to :product, foreign_type: 'Product', foreign_key: 'orderable_id', inverse_of: :order_items

  validates :orderable, :order_id, :amount, presence: true
end