Itemizable checks if the storage location changes, and updates inventory

app/services/itemizable_update_service.rb

@@ -37,7 +37,7 @@ def call(itemizable:, params: {}, event_class: nil)
         # TODO once event sourcing has been out for long enough, we can safely remove this
         if Event.where(eventable: itemizable).none? || UpdateExistingEvent.where(eventable: itemizable).any?
           UpdateExistingEvent.publish(itemizable, previous, original_storage_location)
-        elsif inventory_changes?(previous, params[:line_items_attributes])
+        elsif inventory_changes?(previous, params[:line_items_attributes]) || itemizable.storage_location_id != original_storage_location.id
           event_class&.publish(itemizable)
         end
       end

spec/services/itemizable_update_service_spec.rb

@@ -215,6 +215,24 @@
         expect(UpdateExistingEvent.count).to eq(1)
         expect(View::Inventory.total_inventory(organization.id)).to eq(75) # 40 - 5 (item1) - 10 (item2) + 50 (item3)
       end
+
+      it "should send an event when the storage location changes" do
+        DonationEvent.publish(itemizable)
+        expect(DonationEvent.count).to eq(1)
+
+        # attributes that keep quantities the same but change storage location
+        same_quantities_attributes = {
+          storage_location_id: new_storage_location.id,
+          line_items_attributes: {
+            "0" => {item_id: item1.id, quantity: 10},
+            "1" => {item_id: item2.id, quantity: 10}
+          }
+        }
+
+        described_class.call(itemizable: itemizable, params: same_quantities_attributes, event_class: DonationEvent)
+
+        expect(DonationEvent.count).to eq(2)
+      end
     end
     describe "with distributions" do
       before(:each) do