added more tests

test/models/recipe.hpp

@@ -0,0 +1,52 @@
+#ifndef QUERY_RECIPE_HPP
+#define QUERY_RECIPE_HPP
+
+#include "matador/utils/access.hpp"
+#include "matador/utils/foreign_attributes.hpp"
+
+#include "matador/object/object_ptr.hpp"
+#include "matador/object/many_to_many_relation.hpp"
+
+#include <string>
+
+namespace matador::test {
+
+struct recipe;
+struct ingredient
+{
+  unsigned int id{};
+  std::string name;
+  std::vector<matador::object::object_ptr<recipe>> recipes;
+
+  template<class Operator>
+  void process(Operator &op) {
+    namespace field = matador::access;
+    field::primary_key(op, "id", id);
+    field::attribute(op, "name", name, 255);
+    // field::has_many_to_many(op, "recipe_ingredients", recipes, "ingredient_id", "recipe_id", utils::fetch_type::EAGER);
+  }
+};
+
+struct recipe
+{
+  unsigned int id{};
+  std::string name;
+  std::vector<matador::object::object_ptr<ingredient>> ingredients;
+
+  template<class Operator>
+  void process(Operator &op) {
+    namespace field = matador::access;
+    field::primary_key(op, "id", id);
+    field::attribute(op, "name", name, 255);
+    // field::has_many_to_many(op, "recipe_ingredients", ingredients, utils::fetch_type::LAZY);
+  }
+};
+
+class recipe_ingredient : public object::many_to_many_relation<recipe, ingredient> {
+public:
+  recipe_ingredient() : many_to_many_relation("recipe_id", "ingredient_id") {}
+};
+
+}
+
+#endif //QUERY_RECIPE_HPP