Add manager to Product

db/migrate/1_create_shotengai_products_and_orders.rb

@@ -13,10 +13,14 @@ class CreateShotengaiProductsAndOrders < ActiveRecord::Migration[5.1]
       # Single Table Inheritance
       t.string :type
       t.json :meta
+      
+      t.integer :manager_id 
+      t.string :manager_type 
 
       t.timestamps
     end
 
+    add_index :shotengai_products, [:manager_id, :manager_type]    
     add_index :shotengai_products, :type
 
     create_table :shotengai_series do |t|

lib/shotengai/product.rb

@@ -15,17 +15,22 @@ module Shotengai
   #  detail            :json
   #  type              :string(255)
   #  meta              :json
+  #  manager_id        :integer
+  #  manager_type      :string(255)
   #  created_at        :datetime         not null
   #  updated_at        :datetime         not null
   #
   # Indexes
   #
-  #  index_shotengai_products_on_type  (type)
+  #  index_shotengai_products_on_manager_id_and_manager_type  (manager_id,manager_type)
+  #  index_shotengai_products_on_type                         (type)
   #
-  
+
   class Shotengai::Product < ActiveRecord::Base
     require 'acts-as-taggable-on'
     self.table_name = 'shotengai_products'
+    
+    belongs_to :manager, polymorphic: true, optional: true
     validate :check_spec, if: :spec
 
     include AASM_DLC

spec/factories/shotengai_products.rb

@@ -14,9 +14,16 @@
 #  detail            :json
 #  type              :string(255)
 #  meta              :json
+#  manager_id        :integer
+#  manager_type      :string(255)
 #  created_at        :datetime         not null
 #  updated_at        :datetime         not null
 #
+# Indexes
+#
+#  index_shotengai_products_on_manager_id_and_manager_type  (manager_id,manager_type)
+#  index_shotengai_products_on_type                         (type)
+#
 
 FactoryGirl.define do
   factory :test_good, class: 'TestGood' do