Use :shotengai_product instead of :product in :delegate

lib/shotengai/series.rb

@@ -41,14 +41,14 @@ module Shotengai
     harray_accessor :spec_value, :remark_value, decode: true
     
     template_with_value_getters :info, :detail_info, value_in_template: true
-    template_with_value_getters :spec, :remark, delegate_template_to: :product
+    template_with_value_getters :spec, :remark, delegate_template_to: :shotengai_product
     
     # full_info_template: { optional: d, detail: detail_info_template }
     column_has_implants :info_template, implants: ['detail'], as: 'optional'
 
     # generate_hash_value_column_for :spec, :remark, delegate_template_to: :product
     
-    delegate :title, :detail, :banners, :cover_image, :status, :status_zh, :manager, to: :product
+    delegate :title, :detail, :banners, :cover_image, :status, :status_zh, :manager, to: :shotengai_product
 
     belongs_to :shotengai_product, foreign_key: :shotengai_product_id, 
       class_name: 'Shotengai::Product'#, touch: true