implemented specialization of data types via type traits and handling of embedded non-trivial types

test/models/coordinate.hpp

@@ -0,0 +1,26 @@
+#ifndef QUERY_COORDINATE_HPP
+#define QUERY_COORDINATE_HPP
+
+#include "matador/utils/access.hpp"
+
+namespace matador::test {
+struct coordinate
+{
+  int x;
+  int y;
+  int z;
+};
+
+}
+
+namespace matador::utils::access {
+
+template<class Operator>
+void attribute(Operator &op, const char *id, test::coordinate &value, const field_attributes &attr = null_attributes) {
+  attribute(op, (std::string(id) + "_x").c_str(), value.x, attr);
+  attribute(op, (std::string(id) + "_y").c_str(), value.y, attr);
+  attribute(op, (std::string(id) + "_z").c_str(), value.z, attr);
+}
+
+}
+#endif //QUERY_COORDINATE_HPP

test/models/location.hpp

@@ -0,0 +1,34 @@
+#ifndef QUERY_LOCATION_HPP
+#define QUERY_LOCATION_HPP
+
+#include "matador/utils/access.hpp"
+
+#include "coordinate.hpp"
+
+namespace matador::test {
+
+enum class Color : uint8_t {
+  Green, Red, Blue, Yellow, Black, White, Brown
+};
+
+struct location
+{
+  unsigned long id;
+  std::string name;
+  coordinate coord;
+  Color color;
+
+  template < class Operator >
+  void process(Operator &op)
+  {
+    namespace field = matador::utils::access;
+    field::primary_key(op, "id", id);
+    field::attribute(op, "name", name, 255);
+    field::attribute(op, "coordinate", coord);
+    field::attribute(op, "color", color);
+  }
+};
+
+}
+
+#endif //QUERY_LOCATION_HPP