diff --git a/repository/park.go b/repository/park.go
index 4692d39..d9cf45c 100644
--- a/repository/park.go
+++ b/repository/park.go
@@ -35,3 +35,7 @@ func (_ParkRepository) FetchParkDetail(pid string) (*model.Park, error) {
 	}
 	return park, nil
 }
+
+func (_ParkRepository) EnsurePark(uid, pid string) (bool, error) {
+	return global.DBConn.Table(&model.Park{}).Where(builder.Eq{"user_id": uid, "id": pid}).Exist()
+}