added has_one eager functionality and tests

2026-05-18 12:28:21 +02:00
parent 8c8423bf64
commit caacdfa34a
4 changed files with 179 additions and 42 deletions
@@ -0,0 +1,72 @@
+#ifndef MATADOR_COUNTRY_HPP
+#define MATADOR_COUNTRY_HPP
+
+#include "matador/utils/access.hpp"
+
+#include "matador/object/object_ptr.hpp"
+
+#include <string>
+
+namespace matador::test {
+template<const utils::primary_key_attribute &PkAttribute>
+struct capital_pk_generator;
+
+template<const utils::primary_key_attribute &PkAttribute>
+struct country_pk_generator {
+  unsigned int id{};
+  std::string name;
+  object::object_ptr<capital_pk_generator<PkAttribute>> capital;
+
+  country_pk_generator() = default;
+  explicit country_pk_generator(std::string name)
+  : name(std::move(name)) {}
+  country_pk_generator(const unsigned int id, std::string name)
+  : id(id)
+  , name(std::move(name)) {}
+
+  template<class Operator>
+  void process(Operator &op) {
+    namespace field = matador::access;
+    using namespace matador::utils;
+    field::primary_key(op, "id", id, PkAttribute);
+    field::attribute(op, "name", name, UniqueVarChar255);
+    field::has_one(op, "capital", capital, "country_id", CascadeAllFetchEager);
+  }
+};
+
+template<const utils::primary_key_attribute &PkAttribute>
+struct capital_pk_generator {
+  unsigned int id{};
+  std::string name;
+  object::object_ptr<country_pk_generator<PkAttribute>> country;
+
+  capital_pk_generator() = default;
+  capital_pk_generator(std::string name, object::object_ptr<country_pk_generator<PkAttribute>> country)
+  : name(std::move(name))
+  , country(std::move(country)) {}
+  capital_pk_generator(const unsigned int id, std::string name, object::object_ptr<country_pk_generator<PkAttribute>> country)
+  : id(id)
+  , name(std::move(name))
+  , country(std::move(country)) {}
+
+  template<class Operator>
+  void process(Operator &op) {
+    namespace field = matador::access;
+    using namespace matador::utils;
+    field::primary_key(op, "id", id, PkAttribute);
+    field::attribute(op, "name", name, VarChar255);
+    field::belongs_to(op, "country_id", country, CascadeAllFetchLazy);
+  }
+};
+
+using country = country_pk_generator<utils::Manual>;
+using country_identity = country_pk_generator<utils::Identity>;
+using country_sequence = country_pk_generator<utils::Sequence>;
+using country_table = country_pk_generator<utils::Table>;
+using capital = capital_pk_generator<utils::Manual>;
+using capital_identity = capital_pk_generator<utils::Identity>;
+using capital_sequence = capital_pk_generator<utils::Sequence>;
+using capital_table = capital_pk_generator<utils::Table>;
+}
+
+#endif //MATADOR_COUNTRY_HPP