implemented lazy loading for object_ptr and belongs_to

source/core/CMakeLists.txt

@@ -15,14 +15,19 @@ add_library(matador-core STATIC
   ../../include/matador/net/socket_interrupter.hpp
   ../../include/matador/object/attribute.hpp
   ../../include/matador/object/basic_object_info.hpp
+  ../../include/matador/object/basic_repository.hpp
   ../../include/matador/object/error_code.hpp
   ../../include/matador/object/foreign_node_completer.hpp
+  ../../include/matador/object/internal/observer_list_copy_creator.hpp
+  ../../include/matador/object/internal/observer_list_creator.hpp
   ../../include/matador/object/many_to_many_relation.hpp
   ../../include/matador/object/object.hpp
   ../../include/matador/object/object_generator.hpp
   ../../include/matador/object/object_info.hpp
   ../../include/matador/object/object_proxy.hpp
   ../../include/matador/object/object_ptr.hpp
+  ../../include/matador/object/object_resolver.hpp
+  ../../include/matador/object/object_resolver_factory.hpp
   ../../include/matador/object/observer.hpp
   ../../include/matador/object/primary_key_resolver.hpp
   ../../include/matador/object/relation_completer.hpp
@@ -31,7 +36,6 @@ add_library(matador-core STATIC
   ../../include/matador/object/repository_node.hpp
   ../../include/matador/object/repository_node_iterator.hpp
   ../../include/matador/object/restriction.hpp
-  ../../include/matador/sql/statement_cache.hpp
   ../../include/matador/utils/access.hpp
   ../../include/matador/utils/attribute_reader.hpp
   ../../include/matador/utils/attribute_writer.hpp
@@ -53,6 +57,7 @@ add_library(matador-core STATIC
   ../../include/matador/utils/file.hpp
   ../../include/matador/utils/foreign_attributes.hpp
   ../../include/matador/utils/identifier.hpp
+  ../../include/matador/utils/identifier_to_value_converter.hpp
   ../../include/matador/utils/leader_follower_thread_pool.hpp
   ../../include/matador/utils/library.hpp
   ../../include/matador/utils/macro_map.hpp
@@ -78,6 +83,7 @@ add_library(matador-core STATIC
   logger/rotating_file_sink.cpp
   object/attribute.cpp
   object/basic_object_info.cpp
+  object/basic_repository.cpp
   object/error_code.cpp
   object/foreign_node_completer.cpp
   object/object.cpp
@@ -95,6 +101,7 @@ add_library(matador-core STATIC
   utils/file.cpp
   utils/foreign_attributes.cpp
   utils/identifier.cpp
+  utils/identifier_to_value_converter.cpp
   utils/leader_follower_thread_pool.cpp
   utils/library.cpp
   utils/message_bus.cpp
@@ -106,10 +113,6 @@ add_library(matador-core STATIC
   utils/uuid.cpp
   utils/value.cpp
   utils/version.cpp
-  ../../include/matador/object/internal/observer_list_creator.hpp
-  ../../include/matador/object/internal/observer_list_copy_creator.hpp
-  ../../include/matador/object/basic_repository.hpp
-  object/basic_repository.cpp
 )
 
 target_link_libraries(matador-core ${CMAKE_DL_LIBS})

source/core/utils/identifier_to_value_converter.cpp

@@ -0,0 +1,53 @@
+#include "matador/utils/identifier_to_value_converter.hpp"
+
+namespace matador::utils {
+value identifier_to_value_converter::convert(const identifier &id) {
+  id.serialize(*this);
+
+  return value_;
+}
+
+void identifier_to_value_converter::serialize(int8_t &x, const field_attributes &) {
+  value_ = x;
+}
+
+void identifier_to_value_converter::serialize(int16_t &x, const field_attributes &) {
+  value_ = x;
+}
+
+void identifier_to_value_converter::serialize(int32_t &x, const field_attributes &) {
+  value_ = x;
+}
+
+void identifier_to_value_converter::serialize(int64_t &x, const field_attributes &) {
+  value_ = x;
+}
+
+void identifier_to_value_converter::serialize(uint8_t &x, const field_attributes &) {
+  value_ = x;
+}
+
+void identifier_to_value_converter::serialize(uint16_t &x, const field_attributes &) {
+  value_ = x;
+}
+
+void identifier_to_value_converter::serialize(uint32_t &x, const field_attributes &) {
+  value_ = x;
+}
+
+void identifier_to_value_converter::serialize(uint64_t &x, const field_attributes &) {
+  value_ = x;
+}
+
+void identifier_to_value_converter::serialize(const char *x, const field_attributes &) {
+  value_ = x;
+}
+
+void identifier_to_value_converter::serialize(std::string &x, const field_attributes &) {
+  value_ = x;
+}
+
+void identifier_to_value_converter::serialize(null_type_t &/*x*/, const field_attributes &) {
+  value_.type(basic_type::Null);
+}
+}

source/core/utils/value.cpp

@@ -39,6 +39,14 @@ value &value::operator=(value &&x) noexcept {
   return *this;
 }
 
+bool value::operator==(const value &rhs) const {
+  return type_ == rhs.type_ && value_ == rhs.value_;
+}
+
+bool value::operator!=(const value &rhs) const {
+  return !operator==(rhs);
+}
+
 std::string value::str() const {
   return as<std::string>().value_or("");
 }