entity.h File Reference

#include "../database_types.h"
#include "../core/database_backend.h"
#include <string>
#include <vector>
#include <memory>
#include <type_traits>
#include <chrono>
#include <unordered_map>
#include <functional>
#include <mutex>
#include <optional>

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Classes
struct	database::orm::is_entity< T, typename >
struct	database::orm::is_entity< T, std::void_t< typename T::primary_key_type, decltype(std::declval< T >().table_name()), decltype(std::declval< T >().get_metadata()) > >
class	database::orm::field_metadata
	Metadata for entity fields including constraints and relationships. More...
class	database::orm::entity_metadata
	Metadata for entire entities including table mapping and relationships. More...
class	database::orm::entity_base
	Base class for all ORM entities. More...
class	database::orm::field_accessor< T, typename >
	Template class for type-safe field access. More...
class	database::orm::query_builder< EntityType, typename >
	Template query builder for type-safe ORM queries. More...
class	database::orm::entity_manager
	Manages entity metadata and provides factory methods. More...

Namespaces
namespace	database
namespace	database::orm

Macros
#define	ENTITY_FIELD(type, name, ...)
#define	ENTITY_TABLE(table_name)
#define	ENTITY_METADATA()

Enumerations
enum class	database::orm::field_constraint {   database::orm::none = 0 , database::orm::primary_key = 1 , database::orm::not_null = 2 , database::orm::unique = 4 ,   database::orm::auto_increment = 8 , database::orm::index = 16 , database::orm::foreign_key = 32 , database::orm::default_now = 64 }

Functions
field_constraint	database::orm::operator| (field_constraint a, field_constraint b)
bool	database::orm::has_constraint (field_constraint constraints, field_constraint check)
field_constraint	database::orm::primary_key ()
field_constraint	database::orm::not_null ()
field_constraint	database::orm::unique ()
field_constraint	database::orm::auto_increment ()
field_constraint	database::orm::default_now ()
field_constraint	database::orm::index (const std::string &name="")
field_constraint	database::orm::foreign_key (const std::string &table, const std::string &field)

Variables
template<typename T >
constexpr bool	database::orm::is_entity_v = is_entity<T>::value
template<typename T >
constexpr bool	database::orm::is_field_type_v

Macro Definition Documentation

ENTITY_FIELD

#define ENTITY_FIELD	(		type,
			name,
			... )

Value:

        private: \
            type name##_; \
            static inline field_metadata name##_metadata_{#name, #type, __VA_ARGS__}; \
        public: \
            field_accessor<type> name{name##_, name##_metadata_}; \
            static const field_metadata& name##_field() { return name##_metadata_; }

Examples

orm_framework_demo.cpp.

Definition at line 274 of file entity.h.

    #define ENTITY_FIELD(type, name, ...) \
        private: \
            type name##_; \
            static inline field_metadata name##_metadata_{#name, #type, __VA_ARGS__}; \
        public: \
            field_accessor<type> name{name##_, name##_metadata_}; \
            static const field_metadata& name##_field() { return name##_metadata_; }

ENTITY_METADATA

#define ENTITY_METADATA

(

)

Value:

        public: \
            const entity_metadata& get_metadata() const override { \
                static std::once_flag init_flag; \
                std::call_once(init_flag, [this]() { initialize_metadata(); }); \
                return metadata_; \
            } \
        private: \
            static void initialize_metadata();

Examples

orm_framework_demo.cpp.

Definition at line 289 of file entity.h.

    #define ENTITY_METADATA() \
        public: \
            const entity_metadata& get_metadata() const override { \
                static std::once_flag init_flag; \
                std::call_once(init_flag, [this]() { initialize_metadata(); }); \
                return metadata_; \
            } \
        private: \
            static void initialize_metadata();

ENTITY_TABLE

#define ENTITY_TABLE

(

table_name

)

Value:

        public: \
            std::string table_name() const override { return table_name; } \
            using primary_key_type = decltype(id_); \
        private: \
            static inline entity_metadata metadata_{table_name};

Examples

orm_framework_demo.cpp.

Definition at line 282 of file entity.h.

    #define ENTITY_TABLE(table_name) \
        public: \
            std::string table_name() const override { return table_name; } \
            using primary_key_type = decltype(id_); \
        private: \
            static inline entity_metadata metadata_{table_name};