finished relation completer

2025-07-07 15:50:09 +02:00
parent c974628bee
commit e85543719c
17 changed files with 396 additions and 142 deletions
@@ -0,0 +1,61 @@
+#ifndef QUERY_RECIPE_HPP
+#define QUERY_RECIPE_HPP
+
+#include "matador/utils/access.hpp"
+#include "matador/utils/foreign_attributes.hpp"
+
+#include "matador/object/collection.hpp"
+#include "matador/object/object_ptr.hpp"
+#include "matador/object/many_to_many_relation.hpp"
+
+#include <string>
+
+namespace demo {
+
+struct recipe;
+struct ingredient
+{
+  unsigned int id{};
+  std::string name;
+  matador::object::collection<matador::object::object_ptr<recipe>> recipes{};
+
+  ingredient()= default;
+  ingredient(const unsigned int id, std::string name)
+    : id(id), name(std::move(name)) {}
+
+  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", matador::utils::fetch_type::EAGER);
+  }
+};
+
+struct recipe
+{
+  unsigned int id{};
+  std::string name;
+  matador::object::collection<matador::object::object_ptr<ingredient>> ingredients{};
+
+  recipe()= default;
+  recipe(const unsigned int id, std::string name)
+  : id(id), name(std::move(name)) {}
+
+  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, matador::utils::fetch_type::LAZY);
+  }
+};
+
+class recipe_ingredient : public matador::object::many_to_many_relation<recipe, ingredient> {
+public:
+  recipe_ingredient() : many_to_many_relation("recipe_id", "ingredient_id") {}
+};
+
+}
+
+#endif //QUERY_RECIPE_HPP