Use class-based caching for queries in EnterpriseInjectionData

lib/open_food_network/enterprise_injection_data.rb

@@ -10,11 +10,25 @@ module OpenFoodNetwork
     end
 
     def shipping_method_services
-      @shipping_method_services ||= Spree::ShippingMethod.services
+      @shipping_method_services ||= begin
+        CacheService.cached_data_by_class("shipping_method_services", Spree::ShippingMethod) do
+          # This result relies on a simple join with DistributorShippingMethod.
+          # Updated DistributorShippingMethod records touch their associated Spree::ShippingMethod.
+          Spree::ShippingMethod.services
+        end
+      end
     end
 
     def supplied_taxons
-      @supplied_taxons ||= Spree::Taxon.supplied_taxons
+      @supplied_taxons ||= begin
+        CacheService.cached_data_by_class("supplied_taxons", Spree::Taxon) do
+          # This result relies on a join with associated supplied products, through the
+          # class Classification which maps the relationship. Classification records touch
+          # their associated Spree::Taxon when updated. A Spree::Product's primary_taxon
+          # is also touched when changed.
+          Spree::Taxon.supplied_taxons
+        end
+      end
     end
 
     def all_distributed_taxons