Transport can_be_null into select pseudo table

2026-05-08 20:29:45 -05:00 · 2014-07-23 22:57:11 +02:00
parent 9c15b45ac4
commit d1e8a0153e
1 changed files with 5 additions and 2 deletions
@@ -37,8 +37,11 @@ namespace sqlpp
 		{
 			using _name_t = typename NamedExpr::_name_t;

-#warning take can_be_null from named expression...
-			using _traits = make_traits<value_type_of<NamedExpr>, tag::must_not_insert, tag::must_not_update>;
+			using _traits = make_traits<value_type_of<NamedExpr>, 
+						tag::must_not_insert, 
+						tag::must_not_update,
+						typename std::conditional<can_be_null_t<NamedExpr>::value, tag::can_be_null, void>::type
+							>;
 		};

 	template<