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startet pk_accessor class

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sascha 2026-03-19 16:46:44 +01:00
parent 907bcf90a6
commit 905ee019d7
2 changed files with 106 additions and 0 deletions
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105
include/matador/utils/primary_key_accessor.hpp Normal file
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@ -0,0 +1,105 @@
#ifndef MATADOR_PRIMARY_KEY_ACCESSOR_HPP
#define MATADOR_PRIMARY_KEY_ACCESSOR_HPP
#include "matador/utils/field_attributes.hpp"
#include "matador/utils/primary_key_attribute.hpp"
#include <cstdint>
#include <string>
namespace matador::utils {
class foreign_attributes;
namespace detail {
template < typename PrimaryKeyType >
class primary_key_setter {
public:
explicit primary_key_setter(const std::string &name, const PrimaryKeyType& value)
: name_(name)
, value_(value){}
void on_primary_key(const char *id, PrimaryKeyType &pk, const utils::primary_key_attribute & = utils::default_pk_attributes) {
if (id != nullptr && name_ == id) {
pk = static_cast<PrimaryKeyType>(value_);
}
}
template<typename ValueType>
static void on_primary_key(const char * /*id*/, ValueType & /*pk*/, const utils::primary_key_attribute & = utils::default_pk_attributes) {}
static void on_revision(const char * /*id*/, uint64_t & /*rev*/) {}
template<typename T>
static void on_attribute(const char * /*id*/, T &, const utils::field_attributes & = utils::null_attributes) {}
template<class P>
static void on_belongs_to(const char * /*id*/, P &, const utils::foreign_attributes & ) {}
template<class P>
static void on_has_one(const char * /*id*/, P &, const utils::foreign_attributes & ) {}
template<class C>
static void on_has_many(const char * /*id*/, C &, const char * /*join_column*/, const utils::foreign_attributes & ) {}
template<class C>
static void on_has_many_to_many(const char * /*id*/, C &, const char * /*join_column*/, const char * /*inverse_join_column*/, const utils::foreign_attributes & ) {}
template<class C>
static void on_has_many_to_many(const char * /*id*/, C &, const utils::foreign_attributes & ) {}
private:
const std::string &name_;
PrimaryKeyType value_{};
};
struct pk_unset_checker {
const std::string &name;
bool unset{true};
template<class V>
void on_primary_key(const char *id, V &pk, const utils::primary_key_attribute & = utils::default_pk_attributes) {
if (id != nullptr && name == id) {
// Your convention: 0 means unset for integer PKs
unset = (static_cast<std::uint64_t>(pk) == 0ULL);
}
}
static void on_revision(const char * /*id*/, uint64_t & /*rev*/) {}
template<typename T>
static void on_attribute(const char * /*id*/, T &, const utils::field_attributes & = utils::null_attributes) {}
template<class P>
static void on_belongs_to(const char * /*id*/, P &, const utils::foreign_attributes & ) {}
template<class P>
static void on_has_one(const char * /*id*/, P &, const utils::foreign_attributes & ) {}
template<class C>
static void on_has_many(const char * /*id*/, C &, const char * /*join_column*/, const utils::foreign_attributes & ) {}
template<class C>
static void on_has_many_to_many(const char * /*id*/, C &, const char * /*join_column*/, const char * /*inverse_join_column*/, const utils::foreign_attributes & ) {}
template<class C>
static void on_has_many_to_many(const char * /*id*/, C &, const utils::foreign_attributes & ) {}
};
struct pk_value_extractor {
std::uint64_t value{0};
template<class V>
void on_primary_key(const char * /*id*/, V &pk, const utils::primary_key_attribute & = utils::default_pk_attributes) {
value = static_cast<std::uint64_t>(pk);
}
static void on_revision(const char * /*id*/, uint64_t & /*rev*/) {}
template<typename T>
static void on_attribute(const char * /*id*/, T &, const utils::field_attributes & = utils::null_attributes) {}
template<class P>
static void on_belongs_to(const char * /*id*/, P &, const utils::foreign_attributes & ) {}
template<class P>
static void on_has_one(const char * /*id*/, P &, const utils::foreign_attributes & ) {}
template<class C>
static void on_has_many(const char * /*id*/, C &, const char * /*join_column*/, const utils::foreign_attributes & ) {}
template<class C>
static void on_has_many_to_many(const char * /*id*/, C &, const char * /*join_column*/, const char * /*inverse_join_column*/, const utils::foreign_attributes & ) {}
template<class C>
static void on_has_many_to_many(const char * /*id*/, C &, const utils::foreign_attributes & ) {}
};
}
template<typename PrimaryKeyType>
class primary_key_accessor {
public:
PrimaryKeyType get() const;
PrimaryKeyType
};
}
#endif //MATADOR_PRIMARY_KEY_ACCESSOR_HPP

1
source/core/CMakeLists.txt
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@ -124,6 +124,7 @@ add_library(matador-core STATIC
object/collection_utils.cpp
../../include/matador/object/pk_field_locator.hpp
../../include/matador/object/object_cache.hpp
../../include/matador/utils/primary_key_accessor.hpp
)
target_link_libraries(matador-core ${CMAKE_DL_LIBS})