update pay order product store rules

go/gopath/src/fohow.com/apps/controllers/pay_controller/pay_exchange_controller.go

@@ -432,6 +432,8 @@ func FindNotEnoughPrd(storeMap map[int64]int64) (bool, string) {
 				if _, ok := storeMap[one.ItemId]; ok {
 					//基本商品存在
 					storeMap[one.ItemId] = storeMap[one.ItemId] + nums*one.Nums
+				} else {
+					storeMap[one.ItemId] = nums * one.Nums
 				}
 			}
 		}