used make_object for object_ptr in tests

include/matador/query/insert_query_builder.hpp

@@ -139,7 +139,7 @@ public:
     on_foreign_object(obj, attr);
   }
   template<class Collection>
-  static void on_has_many(const char * /*id*/, Collection &con, const char * /*join_column*/, const utils::foreign_attributes & ) {}
+  static void on_has_many(const char * /*id*/, Collection &/*con*/, const char * /*join_column*/, const utils::foreign_attributes & ) {}
   template<class Collection>
   void on_has_many_to_many(const char *id, Collection &con, const char *join_column, const char *inverse_join_column, const utils::foreign_attributes & ) {
     if (id == nullptr || join_column == nullptr || inverse_join_column == nullptr) {

include/matador/query/intermediates/query_into_intermediate.hpp

@@ -6,6 +6,8 @@
 
 #include "matador/query/value_extractor.hpp"
 
+#include "matador/object/object_ptr.hpp"
+
 #include "matador/utils/placeholder.hpp"
 
 namespace matador::query {
@@ -21,6 +23,10 @@ public:
   query_values_intermediate values(const Type &obj) {
     return values(value_extractor::extract(obj));
   }
+  template<class Type>
+  query_values_intermediate values(const object::object_ptr<Type> &obj) {
+    return values(*obj);
+  }
 };
 
 }