132 lines
5.2 KiB
C++
132 lines
5.2 KiB
C++
#ifndef MATADOR_OBJECT_RESULT_BINDER_HPP
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#define MATADOR_OBJECT_RESULT_BINDER_HPP
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#include "matador/utils/attribute_reader.hpp"
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#include "matador/utils/default_type_traits.hpp"
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#include "matador/utils/access.hpp"
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#include "matador/utils/field_attributes.hpp"
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#include "matador/utils/foreign_attributes.hpp"
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#include "matador/utils/primary_key_attribute.hpp"
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namespace matador::sql {
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namespace detail {
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class fk_result_binder
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{
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public:
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template<class Type>
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void bind(Type &obj, const char *id, size_t column_index, utils::attribute_reader &binder)
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{
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binder_ = &binder;
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index_ = column_index;
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id_ = id;
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access::process(*this, obj);
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id_ = nullptr;
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binder_ = nullptr;
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}
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template<typename ValueType>
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void on_primary_key(const char *id, ValueType &value, const utils::primary_key_attribute& attr = utils::default_pk_attributes);
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static void on_revision(const char * /*id*/, unsigned long long &/*rev*/) {}
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template < class Type >
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static void on_attribute(const char * /*id*/, Type &/*x*/, const utils::field_attributes &/*attr*/ = utils::null_attributes) {}
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template < class Pointer >
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static void on_belongs_to(const char * /*id*/, Pointer &/*x*/, const utils::foreign_attributes &/*attr*/ = utils::default_foreign_attributes) {}
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template < class Pointer >
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static void on_has_one(const char * /*id*/, Pointer &/*x*/, const utils::foreign_attributes &/*attr*/ = utils::default_foreign_attributes) {}
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template<class ContainerType>
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static void on_has_many(const char * /*id*/,
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ContainerType &/*c*/,
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const char * /*join_column*/,
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const utils::foreign_attributes &/*attr*/ = utils::default_foreign_attributes) {}
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template<class ContainerType>
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static void on_has_many_to_many(const char * /*id*/,
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ContainerType &/*c*/,
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const char * /*join_column*/,
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const char * /*inverse_join_column*/,
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const utils::foreign_attributes &/*attr*/) {}
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template<class ContainerType>
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static void on_has_many_to_many(const char * /*id*/,
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ContainerType &/*c*/,
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const utils::foreign_attributes &/*attr*/) {}
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private:
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utils::attribute_reader *binder_{};
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size_t index_{0};
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const char *id_{};
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};
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}
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class object_result_binder {
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public:
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template<class Type>
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void bind(Type &obj, utils::attribute_reader &binder) {
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binder_ = &binder;
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access::process(*this, obj);
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binder_ = nullptr;
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}
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void reset();
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template < class Type >
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void on_primary_key(const char *id, Type &val, const utils::primary_key_attribute& attr = utils::default_pk_attributes) {
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utils::data_type_traits<Type>::read_value(*binder_, id, index_++, val, attr.size());
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}
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void on_revision(const char *id, uint64_t &/*rev*/);
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template<typename Type>
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void on_attribute(const char *id, Type &val, const utils::field_attributes &/*attr*/ = utils::null_attributes) {
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utils::data_type_traits<Type>::read_value(*binder_, id, index_++, val);
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}
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void on_attribute(const char *id, char *value, const utils::field_attributes &attr = utils::null_attributes);
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void on_attribute(const char *id, std::string &value, const utils::field_attributes &attr = utils::null_attributes);
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void on_attribute(const char *id, utils::value &val, const utils::field_attributes &attr = utils::null_attributes);
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template<class Type, template < class ... > class Pointer>
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void on_belongs_to(const char *id, Pointer<Type> &x, const utils::foreign_attributes &/*attr*/ = utils::default_foreign_attributes) {
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fk_result_binder_.bind(*x, id, index_++, *binder_);
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}
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template<class Type, template < class ... > class Pointer>
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void on_has_one(const char *id, Pointer<Type> &x, const utils::foreign_attributes &/*attr*/ = utils::default_foreign_attributes) {
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fk_result_binder_.bind(*x, id, index_++, *binder_);
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}
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template<class ContainerType>
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static void on_has_many(const char * /*id*/,
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ContainerType &/*c*/,
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const char * /*join_column*/,
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const utils::foreign_attributes &/*attr*/ = utils::default_foreign_attributes) {}
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template<class ContainerType>
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static void on_has_many_to_many(const char * /*id*/,
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ContainerType &/*c*/,
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const char * /*join_column*/,
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const char * /*inverse_join_column*/,
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const utils::foreign_attributes &/*attr*/) {}
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template<class ContainerType>
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static void on_has_many_to_many(const char * /*id*/,
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ContainerType &/*c*/,
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const utils::foreign_attributes &/*attr*/) {}
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private:
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utils::attribute_reader *binder_{};
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size_t index_{0};
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detail::fk_result_binder fk_result_binder_;
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};
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namespace detail {
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template<typename ValueType>
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void fk_result_binder::on_primary_key(const char * /*id*/, ValueType &value, const utils::primary_key_attribute& attr) {
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utils::data_type_traits<ValueType>::read_value(*binder_, id_, index_++, value, attr.size());
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}
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}
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}
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#endif //MATADOR_OBJECT_RESULT_BINDER_HPP
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